Mathematics High School

guys pls help me!!!!!!!

Guys Pls Help Me!!!!!!!

Answers

Answer 1

Answer:

n=27

Step-by-step explanation:

(n+6)° + (2n+5)° +90° = 180°

3n+9=90

3n=81

n=27

Sorry if I did it wrong

Related Questions

Math question.

I’ll give brainliest, thanks and 5 stars to the correct answer that has been explained properly.

Answers

Answer:

C) 25%

Step-by-step explanation:

let salt be 's'

let water be 'w'

[tex]\frac{s+1}{w+s+1} = 33\frac{1}{3} \\\\\frac{s+1}{w+s+1} = \frac{1}{3} \\\\\frac{w + s + 1}{3} = s+1\\\\3s +3 = w+s+1\\w = 2s+2\\\\\frac{s+1}{w+1+s+1} = \frac{3}{10} \\\\\frac{3(w+s+2)}{10} = s+1\\\\3w+3s+6 = 10s+10\\**w = 2s+2\\3(2s+2) + 3s + 6 = 10s+10\\\\6s+6+3s+6 = 10s+10\\9s+12 = 10s+10\\-s = -2\\s = 2\\\\w= 2s+2\\w=2*2+2\\w = 6\\\\\frac{2}{2+6} = \frac{2}{8} = 0.25[/tex]

0.25 = 25%

(9 x 10⁶)(8 x 10⁻⁴)= ?

Answers

Answer: 7.2x10 3

Step-by-step explanation:

Answer: 7.2 x 10^3 or 7200

Step-by-step explanation:

The slope of a line is 0, and the y-intercept is 6. What is the equation of the line written in slope-intercept form?

A. Y = x + 6
B. Y = 6x
C. Y= 6

Answers

Answer:

C

Step-by-step explanation:

slope('m") = 0     y-intersect ("b") = 6

y= mx + b

y = 0x + 6

y = 6

the formula is y=mx+b
the m is the slope
the b is the y intercept
since the y int is 0 we don’t need to write it

y=6x is the answer

USE THE CLUES TO CRACK THE CODE
The digits of the code are 4,4, 0, and 2.
The number is less than 1.
The value of the thousandths digit is
value of the hundredths digit.
the
10

Answers

Answer:

Is the answer 0.244? Not sure whether you are asking for help or asking for others to do.

The picture I took is what I need help with.

Answers

Answer:

4th option

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 6, 0 ) and (x₂, y₂ ) = (0, - 9) ← 2 points on the line

m = [tex]\frac{-9-0}{0-(-6)}[/tex] = [tex]\frac{-9}{0+6}[/tex] = [tex]\frac{-9}{6}[/tex] = - [tex]\frac{3}{2}[/tex]

The line crosses the y- axis at (0, - 9 ) ⇒ c = - 9

y = - [tex]\frac{3}{2}[/tex] x - 9 ← in slope- intercept form

Multiply through by 2 to clear the fraction

2y = - 3x - 18 ( add 3x to both sides )

3x + 2y = - 18 ← in standard form

Find the slope of the line that passes through each pair of points (-3,4) and (2,-3)

Answers

Answer:

[tex]\boxed{\sf m=-\frac{7}{5}}[/tex]

Step-by-step explanation:

[tex]\boxed{\sf{Slope}=\frac{y_2-y_1}{x_2-x_1}}[/tex]

→ [tex]\sf \left(x_1,\:y_1\right):\left(-3,\:4\right)[/tex]

→ [tex]\sf \left(x_2,\:y_2\right):\left(2,\:-3\right)[/tex]

[tex]\sf m=\cfrac{-3-4}{2-\left(-3\right)}[/tex]

[tex]\sf m=-\cfrac{7}{5}[/tex]

_________________________

the answer to this problem is - 7/5

The first term in an arithmetic sequences is 8. The fourth term in the sequences is -4. The eighth term in the sequences is -20. Write the explicit form that would be used to find the nth term in the sequence. Show the steps you took to write the simplified explicit form.
HURRY PLEASE!!!!!!

Answers

Answer:

do you need that or something else

what is the answer to this

Answers

Answer:

G.

Step-by-step explanation:

You are given a card number that says 9 3 4 3 9 4 8 5 3 1 7 3 2 3 6 x. If this is the credit card number what must x be?

Answers

Answer:

7

Step-by-step explanation:

it is a 16 digit credit card number. Therefore, start from the first digit and double alternating digits. Add them and the non doubled digits. should be divisible by 10. For double digits, they are added to make single digit.

9+3+8+3+9+4+7+5+6+1+5+3+4+3+3+x = 73+x

final number should be divisible by 10.

x=7

Please help me solve this

Answers

no noeeeeeeeeeeeeeeeeed

classify the equation as having one solution no solution or infinite solution

4(9x+6)=36x-7 And the solution is x=

Answers

Answer:

no solution

Step-by-step explanation:

4(9x + 4) = 36x - 7 ← distribute parenthesis on left by 4

36x + 16 = 36x - 7  ( subtract 16 from both sides )

36x = 36x - 23 ( subtract 36x from both sides )

0 = - 23 ← False statement

This indicates the equation has no solution

5. An oven is set for 425° F. A pizza is baked
in the oven, then the oven is turned off.
Graph time on the x-axis and the oven
temperature on the y-axis.

Answers

Answer:

ANSWER IS ON MY HEAD

Step-by-step explanation:

THINKING ABOUT IT

Can a triangle have sides with the given lengths 8cm, 7cm, 9cm explain

Answers

Answer:

YES

Step-by-step explanation:

For a triangle of sides a, b, c, we must have the following to be true to have a triangle.

a + b > c > |a - b|

b + c > a > |b - c|

a + c > b > |a - c|

if a=8, b=7, and c=9, we have that:

8 + 7 > 9 > 8 - 7, 15 > 9 > 1. TRUE.

7 + 9 > 8 > 9 - 7, 16 > 8 > 2. TRUE.

8 + 9 > 7 > 9 - 8, 17 > 7 > 1. TRUE.

Thus, a triangle can have sides of 8 cm, 7 cm, 9 cm.

Simplify to create an equivalent expression
-5(3p+3) + 9(-7+p)
The answers are:
A)-5p-78
B)-6p-78
C)-6p-48
D)-6p+78

Answers

The answer is B. -6p-78. Pls mark brainliest.

identify the congruence transformation shown as a reflection, translation or rotation

Answers

Answer:

Counterclockwise rotation 90°

Step-by-step explanation:

first quadrant graph -> 2nd quadrant

Counterclockwise rotation 90° : (x,y) -> (-y , x)

Need help asap???????

Answers

Answer:

sorry man I dont know what it is

please help me thank you

Answers

Answer:

2.4 cm

Step-by-step explanation:

1.2/3 = 0.96/x

x = (3 *0.96) / 1.2

x = 2.4 cm

What is the best description of the relation?

Answers

Answer:

The relation is not a function.

Step-by-step explanation:

A function is a relation in which no two ordered pairs have the same input  and different outputs. Whenever you're trying to determine whether a given relation is a function, observe whether each input corresponds with exactly one output.

In this case, the answer is no.  The input value of 10 corresponds with two output values, 4 and 20.  It only takes one input value to associate with more than one output value to be invalid as a function.

Therefore, the given relation is not a function.

1/3× 21/4-11/2÷22/5?? .btw they are improper fractions​

Answers

Solution:

[tex] \frac{1}{3} \times \frac{21}{4} - \frac{11}{2} \div \frac{22}{5} \\ = \frac{1}{3} \times \frac{21}{4} - \frac{11}{2} \times \frac{5}{22} \\ = \frac{1}{3} \times \frac{21}{4} - \frac{5}{4} \\ = \frac{7}{4} - \frac{5}{4} \\ = \frac{2}{4} \\ = \frac{1}{2} [/tex]

Answer:

[tex] \frac{1}{2} [/tex]


maths surface solving

Answers

Answer:

144 cm²

Step-by-step explanation:

6 * 8 + 10 * 4 + 8 * 4 + 6 * 4 =

48 + 40 +32 + 24 =

144 cm²


Emmanuel went to Circuit City to buy a refrigerator for $3,652. This week at Circuit City, all kitchen appliances have a discount of
35%. If Emmanuel goes to Circuit City this week, how much will he pay for the refrigerator?
$1.278.20
$4.930.20
$2.373.80
53,617 00

Answers

Answer:

The answer is C

Step-by-step explanation:

it's 1,278.20 or A
i had this as homework before
i hope this helped :)

Just give me an answer please

Answers

Answer:

Step-by-step explanation:

option 2, gl

Answer:

A and C

Step-by-step explanation:

How do i solve this???

Answers

Sum of all exterior angles always = 360

so number of sides of A = 360/x

B is a 10-sided polygon and A is a 30-sided polygon.

Exterior angle of A = 12
Exterior angle of B = 36

Interior angle of A = 168
Interior angle of B = 144

pls mark me brainliest!

Which sentence best describe multiples of 5

Answers

Multiples of five are the numbers five, 10, 15 and so on, that you get by skipping to every fifth number. to write them, you start with five, then you keep adding five to your last number to get to the next number
First answer is quite reliable tbh

a triangle is equilateral if sides are the same length. true or false?

Answers

True

A triangle with all the three sides equal equilateral

Hope this helped you- have a good day bro cya)

The Sierra club purchased a new kayak. Each of the 6 members paid the same amount. When 2 new members joined, each of the original 6 members received a check back for $10. How much did the kayak cost?

Answers

Answer:

the answer will the sum of multiple of 6& 8 and the lcm of 6 &8

Step-by-step explanation:

ie.

48+24=

Kết quả của phép tính : 2(x+1) là?

Answers

Answer:

2x + 2 is your using distributive property

Step-by-step explanation:

Answer:

2x +1 =))))

bạn mất gốc hả

A 56-inch board is cut into two pieces. One piece is three times the length of the other. Find the length of the shorter piece.​

Answers

Answer:

14-inch

Step-by-step explanation:

let the length of shorter piece be x

x+3x=56

4x=56

x=56/4

x=14

s=c=xc we are looking for x

Answers

Answer:

X=1

Step-by-step explanation:

If s=c=xc, x must equal one. This is because this rule allows us to say c=(1)c. with any other number, this is not true.

How would you describe the graph for the equation |x|=1

Answers

Answer:

it would just be a DOT at positive one on a graph

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