Mathematics High School

Please help on these :(

Answers

Answer 1

Answer:

#13. line QR is 26.

#14. a) x = 2 b) m = 6

Step-by-step explanation:

13. We can use the Pythagorean therom: a^2 + b^2 = c^2

We will substitue PQ for a and PR for b

10^2 + 24^2 = c^2

100 + 576 = c^2

100 + 576 = 676

Then, we find the square root of 676, which is 26.

14. a) 3(2x -1) = 9

we first use distributive property:

6x - 3 = 9

then we add 3 to both sides to counteract the -3:

6x = 12

we divide both sides by 6 to get x alone:

x = 2

b) 3m - 12 = 6

we add 12 to both sides to counteract the -12:

3m = 18

we divide both sides by 3:

m = 6

Related Questions

A number p is greater than -3 and less than 4.

Answers

Answer:

- 3 < p < 4

Step-by-step explanation:

Given p is greater than - 3 then - 3 is less than p

- 3 < p < 4

7/12 divided by 3 3/4

Answers

Answer:

The answer is 7/45

Step-by-step explanation:

First you make 3 3 /4 into an improper fraction which becomes 15/4

Next, you do KFC which is keeping 7/12, making the division sign into multiplication, and then finally you flip 15/4 to 4/15.

Your final answer is 7/45

Hope that helped! Can I also get brainliest? I need a few more to advance, if not thank you anyways and have a nice day!!!

NEED MORE HELP DUE TOMMOROW ONLY HAVE 15 POINTS SO ITS GOTTA BE 10 CUZ I GOT OTHER QUESTIONS THAT NEED ANSWERING

Answers

Answer:

a: 00:45

b: 7:30 PM

Step-by-step explanation:

Hope this is right

137.8×3.5 with explanation

Answers

Answer:

482.3

Step-by-step explanation:

because 137.8 times 3.5 is

482.3

137.8x3.5 is 482.3 because 137.8 3.5s is 482.3

Evaluate the expression when a = -3 and c=4. a-3c

Answers

Answer:

Step-by-step explanation:

c=1/4(A-3c)

4c = A-3c

7c = A

c = A/7

-3-3(4)
-3-12=-15

Answer: -15

Hope this helps!

Answer ASAP

angle A and angle B are complementary angles. The measure of angle A is (3x)"
and the measure of angle B is 45°. What is the value of x?

Answers

Answer:

x = 15°

Step-by-step explanation:

Complementary angles are two angles whose sum = 90°

∠A + ∠B = 90°

3x + 45 = 90

3x = 45

x = 45/3

x = 15°

You collect a total of $75 in donations from three people. The three donations are in the ratio 4 : 4 : 7.

Answers

Answer:

20 20 35

Step-by-step explanation:

4+4+7 then divide by 75 whatever answer you get multiplyy by the 4 or the other 4 or the 7

A graphics company charges $50 per hour to create a logo plus $250 for the ownership rights of the logo. A private contractor charges $75 per hour to develop a logo plus a $100 supply fee.

Which equation can be solved to determine x, the number of hours after which the costs would be the same?

50x + 250 = 75x + 100

Answers

Anwer:

x=6

Step-by-Step Explaination:

Which models show the problem 4
6
÷ 2
6
= 2? Check all that apply.

An area model has 4 shaded parts and 2 unshaded parts. 2 circles are each drawn around 2 shaded parts.
A number line going from 0 to 1. An arrow goes from 0.6 to 0.4, and from 0.4 to 0.
A fraction bar. The top bar is labeled 1. 6 bars underneath the bar are labeled one-sixth. 4 of the bars are circled.
An area model has 2 shaded parts and 4 unshaded parts. The 2 shaded parts are circled.

Answers

Answer:

the second and last sentences.

Step-by-step explanation:

Its the most reasonable!

Answer:

It is accutally 1st 2nd and 3rd plz trust me

Step-by-step explanation:

it is the corect

At last year's company picnic, 25 pounds of ground beef were needed to make 100 hamburgers.

How many pounds of ground beef will be needed this year if 120 hamburgers are to be made?

30 lb

45 lb

50 lb

55 lb]

Answers

Answer:

46lb

Step-by-step explanation:

you take twenty five divide by one twenty

Answer:

30lbs your awnser is that 30 pounds

Answer Asap!
<3 THX <3
XOXO Also giving out brainliest!

Answers

(-4,3) original point
(-4,-3) reflect over x axis
(3,4) 90 clockwise
(-8,6) left/up

[tex](1+sin^{2} )cosx+(1+cos^{2} x)sinx=1=sin2x[/tex]

Answers

The answer is = 1 + sin x

Explanation

we need

a^2 - b^2 = (a+b) (a-b)

we use

cos^2 x + sin^2 x = 1

cos^2 x = 1 - sin^2 x = ( 1 + sin x) ( 1 - sin x )

therefore

cos ^2 x over 1 - sin x = 1+ sin x

What does the number shown below equal to?
-15x = 390

Answers

Answer:

x =-26

Step-by-step explanation:

-15x = 390

Divide each side by -15

-15x/-15 = 390/-15

x =-26

Answer:

X = -26

Step-by-step explanation:

Divide both sides by -15.

390/-15 = -26

X is equal to -26.

Help please i need to know this

Answers

Answer:true,true,false, true,false false

Step-by-step explanation:

Answer:

As shown in the attachment,

Step-by-step explanation:

Simplify the following...

Answers

Answer:

a) x

b)[tex]w^{4}[/tex]

Step-by-step explanation:

Answer:34,587

Step-by-step explanation:

translate the sentence into an inequality.
The product of w and 8 is greater than or equal to -16.

Answers

The inequality would be 8w≥-16

Answer:

8w ≥ -16

It's pretty simple.

Product means it has something to do with multiplication.

≥ This is the greater than or equal to sign.

how to find an expression for the perimeter of the rectangle

Answers

Answer:

Step-by-step explanation:

To find the perimeter of a rectangle, add the lengths of the rectangle's four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width). Multiply both the height and width by two and add the results.

What is the Prime factorization of 321411?

Answers

Answer:

The determined equation for number 321411 factorisation is 3 * 107137.

James wants to buy a new cell phone package. There are three packages available, each offering a different deal.Package 1$160 for 4 monthsPackage 2$128 for 4 monthsPackage 3$60 for 2 monthsWhich package offers the best deal?A.Package 3B.Package 1C.Package 2D.Both Package 1 and Package 2

Answers

Answer:

to get which one is the best we have to bring them packages to the same terms

so to do that we have to find what each package offers per month by divided the amount by the number of months

160/4= 40

128/4=32

60/2=30

so the best package is

B. package 1

Dont get this, please help

Answers

Answer:

1. Enlarge, Shrink

2. Smaller

3. Bigger

Step-by-step explanation:

Dilation is something expanding or shrinking, like how your eyes dilate.

Simply think of the scale factor as what you are multiplying the entire figure by. If you are multiplying it by let's say 2, it would double in size, thus getting larger. If you were to multiply it by 1/2, then it would decrease, or shrink, to half its original size.

Answer:

1: enlarge, shrink

2: smaller

3: bigger

Hope this helps! SO sorry if incorrect!!!!!!

42 divided by (-7) =

Answers

the answer is -6.

the negative 7 turns the answer negative.

The answer is negative six so (-6) because when you divide a positive number with a negative it becomes a negative

Solve this

3x + 2 = 26

Answers

Answer:

x=8

Step-by-step explanation:

Answer:

x = 8

Step-by-step explanation:

Undo what is done to x. We see that x is multiplied by 3 and then 2 added. We undo these steps in reverse order.

3x +2 = 26 . . . . . . given

3x = 24 . . . . . . . . . subtract 2 from both sides of the equation

x = 8 . . . . . . . . . . . divide both sides of the equation by 3

NEED ASAP hurry plz

Write a story that would explain the graph below.

Answers

Answer:

A kid leaping happily to home after school

The graph represents the relationship between height and time.

Given that,
A curve has been shown we have to explain the behavior of the curve.

What is a graph?

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
The curve is shown, where the vertical axis represents the height above the ground and the horizontal axis represents the time. Let's assume a plane of paper is flying, the plane getting a rise and then a certain down and again rise and down as according to the height of the plane.

Thus, the graph represents the relationship between height and time.

Learn more about graphs here:

brainly.com/question/16608196

#SPJ2

A car dealership increased the price of a certain car by 11%. The original price was $45,400.

Answers

Answer:

$49,527.27273 or $49,527

Step-by-step explanation:

45,000/11

$4,127.272727 or $4,127

$45,400 + $4,127

$49,527

Find the distance between parallel lines whose equations are y = x - 6 and y = x + 8.

Answers

Answer:

Step-by-step explanation:

Distance between y2 = x + 8 and y1 = x - 6

y2 - y1 = (x + 8) - (x - 6) = 14

simplify (x+y)(x-y)(x^2+y^2)

Answers

Answer:

x⁴-y⁴

Step-by-step explanation:

=(x+y)(x-y)(x²+y²)

=(x²-y²)(x²+y²)

=x⁴-y⁴

so I'm not sure how to draw a square with the area of 3 units

Answers

The area of a square is width x height where both the width and height is the same length because a square has the same lengths on all four sides.

So we can say “3 = L x L” where L is any side length of the square

L times L is just simplified to L squared: “3 = L^2”

We can take the square root of both sides to get rid of the L squared. We are left with “the square root of 3 equals L”.
Sqrt(3) = L

And on a calculator the square root of 3 is 1.73205080757.

1.73205080757 = L.

The square is 4 lines in a box each with the length of 1.73205080757 units.

( ax + 2 ) ( bx - 4 )

Answers

Answer:

Step-by-step explanation:

(ax + 2 )(bx - 4 ) = ax *(bx - 4) + 2*(bx - 4)

= ax*bx - 4*ax + 2*bx - 4*2

= abx² - 4ax + 2bx - 8

Answer:

[tex]=ax^2b-4ax+2bx-8[/tex]

Step-by-step explanation:

Which of the following represents an equation in standard form for the line that passes through (3, −1) and (−5, −3).

Answers

Answer:

y = ¼x + (-7/4)

Step-by-step explanation:

find the gradient ( M)

M = y2- y1 ÷ x2-x1

M= -3 - (-1)÷(-5)-3 = ¼

the

find C in the equation (y=mx+c)

C = y-mx ( C = -1-¼(3)= -7/4

(use in y and x values provided)

now replace the values you find in the equation (y=Mx+C)

final answer is

y = ¼x+(-7/4)

y = ¼x + (-7/4) is the standard form for the line that passes through (3, −1) and (−5, −3)

What is Slope intercept form?

y=mx=c is the slope intercept form of a line, m is the slope.

We need to find equation of line passing through (3, −1) and (−5, −3)

First we need to calculate slope 'm'.

slope m = y2- y1 / x2-x1

y2=-3, y1=-1, x2=-5, x1=3

m= -3 - (-1)/(-5)-3 = -2/-8=1/4

Equation of line, y=mx+c

find C in the equation (y=mx+c)

C = y-mx

C = -1-1/4(3)= -7/4

now replace the values you find in the equation (y=Mx+C)

y =1/4x-7/4

Hence y =1/4x-7/4 is the equation of line passes through (3, −1) and (−5, −3).

To learn more on slope intercept form click:

https://brainly.com/question/9682526

#SPJ2

Dont leave a link hxhdbf

Answers

Answer:

27m^6 n^12

Step-by-step explanation:

Answer:

27m^6n^12

Step-by-step explanation:

3^3 = 27

m^2^3 = m^6

n^4^3 = n^12

Hence, it is

27m^6n^12 (the last option)

Hope this helps and be sure to have a wonderful time at Brainly! :D

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