If f(x) = 2x - 5, then f(4) is
017
03
04
05

Answers

Answer 1

Answer:

3

Step-by-step explanation:

f(x) = 2x-5      put in 4 for x

f(4) = 2(4) - 5   = 3


Related Questions

Which fractions are equivalent to 1 2 ? Select all that apply. A. 2 4 B. 3 6 C. 3 4 D. 4 8

Answers

Answer:

A , B And D


2/4 divide both numbers by to and you get 1/2


3/6 divide both numbers by 3 and you get 1/2


4/8 divide both numbers by 4 and you get 1/2

Answer:
A
B
D
Step-by-step explanation:

12+12=24
12+12+12=36
12+12+12+12=48

what is an equation of the line that passes through the points (6,3) and (-6,1)

Answers

Answer: y = [tex]\frac{1}{6}[/tex]x + 2

Step-by-step explanation:

    [1] First, we will graph the points given. See the attachment with [1] in the corner.

    [2] Next, we will find the slope.

    (2a) Using rise over run. See the attachment with [2] in the corner.

    (2b) Use the slope equation:

[tex]\displaystyle \frac{1-3}{-6-6}= \frac{-2}{-12} =\frac{1}{6}[/tex]

    [3] Find the y-intercept. Look to the graph. See the attachment with [3] in the corner.

         This gives us a final answer of y = [tex]\frac{1}{6}[/tex]x + 2

pls answer i give u anything

Answers

Answer:

the first one is 0.5 inches 1.27 centimeters

the second is 0.25 inches or 0.635 centimeters

Step-by-step explanation:

A stainless steel patio heater is a square pyramid. The length of one side of the base is 19.8 in. The slant height of the pyramid is 93.8 in. What is the height of the​ pyramid?

Answers

The height of the pyramid is 91.686422 in.

i don’t understand this question

Answers

Step-by-step explanation:

to figure this out you would have to take all the numbers and do the rise over run technique

Choose the angle which is vertical to angle BFC in the following figure.
answer A angle CFD
answer B angle DFE
answer C angle AFC
answer D angle EFA

Answers

Angle DFE. Hope this helped.

Work out
21
% of
£
944.13
Give your answer rounded to 2 DP. I need right awnsers you can use calculators

Answers

Answer: £198.27

Step-by-step explanation:

944.13x0.21=198.2673Rounded to 2 decimal places that is 198.27

What is the domain of the function graphed below?

Answers

Answer:

The second option

Step-by-step explanation:

Hello!

The domain of a graph is the interval in which the graph is on the x values.

This graph has all the x values that are greater than or equal to -3, as the graph is to the right of it.

The answer would be the second option: [tex]D : x/x \geq -3[/tex]

The range is the y-values of the graph. The y value of this graph is above 0, so it would be y ≥ 0

Please help me out! I would also love an explanation on how to find the ratio and the answer​

Answers

Answer:

A

Step-by-step explanation:

This will have slope in it, so bear with me.

We will use the equation [tex]\frac{y(2) - y(1)}{x(2) - x(1)}[/tex] (keep in mind (2) means second and (1) means first)

Lets fill it out.

[tex]\frac{-4-(-1)}{-4-3}[/tex]

It should be [tex]\frac{-3}{-7} or \frac{3}{7}[/tex]

So it is A

evaluate: 3 /7 + ( −11 /4 ) + 16 /5 − ( −18 /7 )

Answers

Answer:

This is hard

Step-by-step explanation:

I'm so sorry I can't do it

Answer:

[tex]\frac{69}{20}[/tex]

Step-by-step explanation:

[tex]\frac{3}{7} -\frac{11}{4} +\frac{16}{5} +\frac{18}{7}[/tex]

= [tex]\frac{3}{7} +\frac{18}{7}-\frac{11}{4} +\frac{16}{5}[/tex]

= [tex]\frac{21}{7} -\frac{11}{4} +\frac{16}{5}[/tex] As both denominators have 7 you can add their numerators

=[tex]\frac{21}{7} -(-\frac{9}{20})[/tex]     L.C.M

=[tex]\frac{21}{7} +\frac{9}{20}[/tex]   L.C.M

=[tex]\frac{69}{20}[/tex]

Question 7 options:

5/7

7/5

2


9/7

Answers

Answer:

5/7.

Step-by-step explanation:

The rise = 5 and the corresponding run si 7.

Answer:

5/7

Step-by-step explanation:

so we start at the point (0,0). the slope is essentially

Rise/Run

so in this graph we see a point of (7,5)

the rise was 5 along the y axis and the run was 7 along the x axis.

so 5/7 is correct

The results of a standardized test are normally distributed. The mean test score is 312. Of the scores, 16% are under 307. What is the standard deviation?

A: 10

B:5​

Answers

Answer:

the answer is B five

Step-by-step explanation:

three hundred and seven minus three hundred and twelve

Han and Priya want to know the mean height of the 30 students in their dance class. • The mean height for Han’s sample is 59 inches. • The mean height for Priya’s sample is 61 inches.

Answers

Answer:

60 inches

Step-by-step explanation:

Add 59+61 =120 which you divide by 2 for the mean of 60.

Jacob had x apple pies. For each lemon pie sold, 10 more than twice the number of apple pies are sold. If jacob has sold 80 lemon pies, how many apple pies were sold.

A) 70
B) 25
C) 35
D) Not Here

Answers

Answer:

C) 35

Step-by-step explanation:

The answer is C because he sold 80 lemon pies and as the question states ten more than twice the number of apple pies were sold .

Subtract 80 by 10 and divide it by 2

80-10=70÷2 = 35

C, u make an equation of 2x+10= 80 and solve

Sarah bought 1250 grams of sugar. how many kilograms of sugar did she buy? A. 1.250 B. 12.50 C. 125.0 D 12500

Answers

Answer:

1.25 kg

Explanation:

1 kilograms is equal to 1000 grams

============

1 g = (1/1000) kg

======

So, 1250 gram = (1250/1000) kg

1250 gram = 1.25 kg
Total sugar in grams=1250g

We know

1kg=1000g

Now

Mass in kg:-

1250/10001.250kg

Option A

Use the number line below to determine which of the following answer choices has statements that are all true.

Answers

Answer:

1st option, and 4th option

Step-by-step explanation:

Is it select one, or select all that are correct?

Xavier and Carlos have a bet to see who can get more “friends” on a social media side after 1 month. Carlos has 10 more friends than Xavier when they start the competition. After much work, Carlos doubles his amount of friends and Xavier triples his. In the end they have a total of 160 friends.
a. Write a system of equation that matches the verbal description given below if
c = number of Carlos’ friends and x = number of Xavier’s friends.

Answers

The system of equations that describes the situation is given by these two following equations:

c = 10 + x.2c + 3x = 160.

What is a system of equations?

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are c and x.

Carlos has 10 more friends than Xavier when they start the competition, hence:

c = 10 + x.

Carlos doubles his amount of friends and Xavier triples his. In the end they have a total of 160 friends, hence:

2c + 3x = 160.

More can be learned about a system of equations at https://brainly.com/question/24342899

please help me I need help please​

Answers

Answer:

p = 4

Step-by-step explanation:

Given equation:

[tex]x^2+(p-3)y^2-4x+6y-16=0[/tex]

Standard equation of a circle:

[tex](x-a)^2+(y-b)^2=r^2[/tex]

(where [tex](a,b)[/tex] is the centre of the circle, and [tex]r[/tex] is the radius)

If you expand this equation, you will see that the coefficient of [tex]y^2[/tex] is always one.

Therefore, [tex]p-3=1[/tex]

[tex]\implies p=1+3=4[/tex]

Additional information

To rewrite the given equation in the standard form:

[tex]\implies x^2+y^2-4x+6y-16=0[/tex]

[tex]\implies x^2-4x+y^2+6y=16[/tex]

[tex]\implies (x-2)^2-4+(y+3)^2-9=16[/tex]

[tex]\implies (x-2)^2+(y+3)^2=16+4+9[/tex]

[tex]\implies (x-2)^2+(y+3)^2=29[/tex]

So this is a circle with centre (2, -3) and radius √29

3.
Laura multiplied 27,890 by a fraction with a numerator of 12. The product
was less than 27,890. Which of the following statements is true about the
denominator of Laura's fraction?

Answers

Answer:

I don't see any optional answers, but the denominator must be greater than 12.

Step-by-step explanation:

27,890*(12/X) < 27,890

Therefore (12/X) < 1

and X > 12

Find the value of x.
х
30°
24

Answers

Answer:

Step-by-step explanation:

x is the opposite side of angle 30°

34 is the adjacent side of 30°

So, find the value of x, we have use tan

[tex]\bf \boxed{ tan \ \theta = \dfrac{opposite \ side}{adjacent \ side}}}[/tex]

[tex]tan \ 30^\circ = \dfrac{x}{24} \\\\\\0.58 = \dfrac{x}{24}\\\\\\0.58*24=x[/tex]

x = 13.92

BRAINLIEST TO WHOEVER GETS IT RIGHT
Which of the following accurately shows the first step when solving the following system of equations by substitution?
f(x) = -4x^2 + 3x + 1
g(x) = -6x +5
a -4x^2+ 3x + 1 = -6x +5
b 4x^2 + 3x +1 - 6x + 5 = 0
c g(x)= -6(-4x^2 + 3x + 1) + 5
df() = -4(-6x + 5)^2 +3(-6x + 5) +1

Answers

Answer:

c and d

Step-by-step explanation:

because

- In f(x),evey time you find  X you write(-6x+5) instead

4x²-----------4(-6x+5)²

3x+1------------3(-6x+5) +1

-In g(x),evey time you find  X you write(-4x² +3x+1)  instead          

Does anybody know this? I really need help.

Answers

Answer:

22 is th area

Step-by-step explanation:

Is anyone good at math and can help me solve my math problems

Answers

Answer:

Hi! I'm not too bad at math so I hope I can help you. Except, I can't seem to find your question so please comment your question(s) to me so that I can help you. Have a great day:)

What scale factor was used to dilate STUV to S’T’U’V?

A. 0.20
B. 0.50
C. 0.25
D. 0.75

Answers

Answer: C. 0.25

Step-by-step explanation:

Large Shape: S (-4, 12)   T (2, -4)    U (6, -8)   V (-12, -8)

Small Shape: S (-1, 3)   T (0.5, -1)    U (1.5, -2)   V (-3, -2)

For the smaller shape the distance between V and U is 4.5

For the larger shape the distance between V and U is 18

So when you divide [tex]\frac{4.5}{18}[/tex] you should get 0.25

S: [tex]\frac{-4}{-1}=4[/tex]     [tex]-4 *0.25=-1[/tex]

T: [tex]\frac{2}{0.5}=4[/tex]     [tex]2*0.25=0.5[/tex]

U: [tex]\frac{6}{1.5}=4[/tex]     [tex]6*0.25=1.5[/tex]

V: [tex]\frac{-12}{-3} =4[/tex]    [tex]-12*0.25=-3[/tex]

I hope this helps

The sum of two positive integers is 31. If the sum of the squares of these numbers is 625,find the smaller of the numbers.

Answers

Step-by-step explanation:

It is given that, the sum of two positive integers is 31 and the sum of the squares of these numbers is 625 and we are to find the smaller of the numbers.

So, let the two positive integers be x and y.

Therefore,

[tex] \\ {\longrightarrow \pmb{\sf {\qquad x + y = 31 \: \: ........ \: (i) }}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x {}^{2} + y {}^{2} = 625 \: ...... \: (ii)}}} \\ \\[/tex]

Now, From the first equation we have,

[tex]\\ {\longrightarrow \pmb{\sf {\qquad x + y = 31 }}} \\ \\ [/tex]

[tex] {\longrightarrow \pmb{\sf {\qquad y = 31 - x \: ...... \: (iii)}}} \\ \\ [/tex]

Now, substituting the value of y in equation (ii) we get :

[tex] \\ {\longrightarrow \pmb{\sf {\qquad x {}^{2} + (31 - x) {}^{2} = 625}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x {}^{2} + (31 {}^{2} - 2.x.31 + x{}^{2} ) = 625}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x {}^{2} + (961 - 62x + x{}^{2} ) = 625}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x {}^{2} + 961 - 62x + x{}^{2} - 625 = 0}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad 2 x {}^{2} + 336 - 62x = 0}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad 2 x {}^{2} - 62x + 336 = 0}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad 2( x {}^{2} - 31 + 168) = 0}}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad \frac{2}{2} ( x {}^{2} - 31 + 168) = \frac{0}{2} }}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x {}^{2} - 31 + 168 = 0}}} \\ \\[/tex]

Now using the quadratic formula :

[tex]{\longrightarrow \pmb{\sf {\qquad x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a} }}} \\ \\[/tex]

Where,

a = 1

b = -31

c = 168

[tex] \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x = \frac{ - (- 31) \pm \sqrt{ {31}^{2} - 4(1)(168)} }{2(1)} }}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x = \frac{ 31 \pm \sqrt{ 961 -672} }{2(1)} }}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x = \frac{ 31 \pm \sqrt{ 289} }{2(1)} }}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x = \frac{ 31 \pm 17 }{2(1)} }}} \\ \\[/tex]

Now, we have two equations,

[tex]{\longrightarrow \pmb{\sf {\qquad x = \frac{ 31 + 17 }{2} \: ... .....\: (iv)}}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x = \frac{ 31 - 17 }{2} ... .....\: (v)}}} \\ \\[/tex]

So, Equation (iv) :

[tex] \\ {\longrightarrow \pmb{\sf {\qquad x = \frac{ 31 + 17 }{2} }}} \\ \\ [/tex]

[tex]\\ {\longrightarrow \pmb{\sf {\qquad x = \frac{ 48 }{2} }}} \\ \\ [/tex]

[tex]\\ {\longrightarrow \pmb{\sf {\qquad x = 24 }}} \\ \\ [/tex]

Now, Equation (v) :

[tex] \\ {\longrightarrow \pmb{\sf {\qquad x = \frac{ 31 - 17 }{2}}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x = \frac{ 14 }{2}}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad x = \: 7}}}\\ \\ [/tex]

So, the value of x is 7 or 24

Now, we are to find the value of y.

Substituting the value of x (24) in equation (iii) :

[tex] \\ {\longrightarrow \pmb{\sf {\qquad y = 31 - x \:}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad y = 31 - 24 \:}}} \\ \\ [/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad y = 7 \:}}} \\ \\ [/tex]

Again, Substituting the value of x (7) in equation (iii) :

[tex]\\ {\longrightarrow \pmb{\sf {\qquad y = 31 - x \:}}} \\ \\ [/tex]

[tex] {\longrightarrow \pmb{\sf {\qquad y = 31 - 7 \:}}} \\ \\ [/tex]

[tex]\\ {\longrightarrow \pmb{\sf {\qquad y = 24 \:}}} \\ \\ [/tex]

Therefore,

The value of y is also 7 or 24.

[tex] \\ [/tex]

So, The smaller of the numbers is 7 .

Question : -

The sum of two positive integers is 31. If the sum of the squares of these numbers is 625, find the smaller of the numbers.

Given : -

Sum of two positive numbers = 31

Sum of squares of these numbers = 625

To Find : -

We have to find the smaller of the numbers .

Concept : -

This question belongs to quadratic equations so we have to find the answer by making equation and solving it .

To Assume : -

Let the first no. be x

Let the second no. be y

So let's get started with Solution :

According to question , sum of two positive integers is 31 . So ,

x + y = 31 --------- ( Equation 1 )

According to question , sum of square

of these numbers is 625 . So ,

x² + y² = 625 --------- ( Equation 2 )

From equation 1 ( x + y = 31 ) , Value

of x :

x = 31 - y

Now , putting value of x in eq. 2 :

x² + ( 31 - x )² = 625

x² + ( 31 )² - ( 2 × 31 × x ) + x² = 625

2x² + 961 - 62x = 625

2x² - 62x = 625 - 961

2x² - 62x = -336

2x² - 62x + 336 = 0

2(x² - 31x + 168 ) = 0

x² - 31x + 168 = 0

Solving it by using middle term

splitting :

x² -24x -7x + 168 = 0

x ( x - 24 ) -7 ( x - 24 ) = 0

( x - 7 ) ( x - 24 )

So ,

First number ,

x - 7 = 0x = 7 { Smaller Number }

Second Number ,

x - 24 = 0x = 24

Verification :

According to question ,

Sum of numbers is equal to 31 :

x + y = 31

7 + 24 = 31

L.H.S = R.H.S

Sum of squares of these numbers is equal to 625 :

x² + y² = 625

7² + 24² = 625

49 + 576 = 625

625 = 625

L.H.S = R.H.S

Therefore , our value for x and y are true. Thus our answer is valid.

#[tex] \rm{Keep \: Learning}[/tex]

PLSSS HELP ME
(5x5)/[10x22]-4\52

Answers

Answer: 21/572

[tex]\frac{5.5}{10 . 22} - \frac{4}{52}[/tex]

The dots stand for multiplication

Please help me ASP! Could anyone tell me what 3 x what gets me to 90?

Answers

Answer:

3*30 = 90

Step-by-step explanation:

3*30 = 90

Use the equation A = bh to calculate the height of a parallelogram with an area of 36 square inches and a base of 9 inches

Answers

Answer:

4 inches

Step-by-step explanation:

A = b x h

A = 36

b = 9

36 = 9 x h

4 = h

height = 4 inches

600 people visited the mall today and 8% of these people made a purchase. How many people made a purchase?

Answers

Answer:

48 made a purchase

Step-by-step explanation:

8% of 600

= [tex]\frac{8}{100}[/tex] × 600 ( cancel 100 and 600 by 100 )

= 8 × 6

= 48

How long does it take for a $5000 investment to turn into a $7000 investment if it is compounded
semi-annually at 5.2%

Answers

Answer:

well over 3 years and almost over 4 months

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Translate these sentences to English (sorry for the wrinkled paper) How are water and minerals transported and used in vascular plants?Choose all correct answers.The phloem moves the food made in the shoots to all the other parts of the plant.Vascular plants have leaves that absorb the water and minerals from the air.The shoots are where the plant makes its food.Hollow tubes called xylem carry the water and minerals up through the plant to the shoots. A rhombus has a perimeter of 52 inches. Its shorter diagonal is 10 inches in length. which of the following is the length of its longer diagonal? The nervous system has two main divisions, which include the central nervous system and the _____ nervous system. In your own words, describe what happened to Germany following the Yalta and Potsdam Conferences. How did the U.S. the Soviet Union, Britain, and Francegovern post-war Germany? Did the South have the right to secede and form the Confederate States of America? Suppose that an economy consists of only two individuals. Jeremy has $1890 available to spend on goods. He decides to purchase $390 worth of produce from Krista in the current quarter. No other economic activity takes place during the current quarter. Using this information, answer the questions.For the current quarter, what is the economy's income? $_____________For the current quarter, what is the economy's expenditure? $_____________In an economy, how are income and expenditure related?a. Income is less than expenditure.b. They are equal.c. They are unrelated.d. Income is greater than expenditure. Write (b^3)^2 without exponents Where are the Turks from? Mandy has a total of $2.00 in change in her purse. Complete each set of coins below to show amounts equivalent to $2.00.4 quarters, 5dimes, ______nickels10 pennies, ____ dimes, 3 quarters, 5 nickels2 quarters, 12 dimes, 3 nickels,______ pennies ______quarters, 4 dimes, 6 nickels, 5 pennies Use the properties of seawater to describe the characteristics of mixtures. True or False: A trait is only considered an adaptation if it is beneficial to the organisms current environment giving 15 points please help PSYCHOLOGY: Personal characteristics such as ones __________ and __________ are often stable throughout ones lifetime. A. temperament . . . emotionality B. attitude . . . intelligence C. temperament . . . attitude D. emotionality . . intelligenceAnswer: A. temperament . . . emotionality Un obrero tiene una escalera de 12 metros. Que ngulo debe formar con el suelo para alcanzar una altura de 8 metros? How did the native Land of 1913 impact on land distribution of south africa How is the President of India selected? 16. An online magazine charges $45,000 for a 3-month contract for a banner addisplayed above its weekly feature article. The magazine has 120,000subscribers and gets 195,000 hits per day. What is the banner's cost per subscriber if a banner ad was taken for a year? What is this transformation called? Is the "Kingdom" level more specific or less specific then the "Domain" level?