I need help ASAP
Which one is it ?

Answer:

59

Step-by-step explanation:

We know that all the angles must add up to 180

so we have

38+2b-20+b-15=180

solve for b

3b+3=180

3b=177

b=59

Answer:

b=59

Step-by-step explanation:

angles in the triangle add up to 180

this would mean that

38 +2b-20 + b-15 = 180

if we simplify this then it would be

3+3b= 180

rearrange

3b = 177

b = 59

Answer:

-14+10d

Step-by-step explanation:

-9-5+10d

add like terms

-14+10d

Answer:

If you're trying to simplify it the answer is -14 + 10d

Answer:

Step-by-step explanation:

the wall is 10 by 10    and a block C is painted on it  

I used 22 squares to draw a square - ish block C as large as I could and I

l left a 'frame'  of unpainted blocks around C

                         9 by 8  block C   on a    10 by 10  wall

Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ

Δ                                    

Δ           

Δ                  THIS IS A TOTAL GUESS     I really need more informaiton

Δ

Δ

Δ                                                    

Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ   Δ

Answer:

Step-by-step explanation:

The rule for a rotation by 270° about the origin is:

Coordinates of ABCD:

Coordinates of the image:

Answer:

A'(1,-1)  , B'(3,-2)  , C'(3,-4)  , D'(1,-5)

These are correct answers hope this helps. :)

Step-by-step explanation:

Answer:

Check pdf

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

because 3x3=6

so y would have been 6 not sure if am correct but I'm trying something

Answer:

-4x-32  Can i please get a brainliest because this correct.

Step-by-step explanation:

−4(x+7)−4

Distribute:

=(−4)(x)+(−4)(7)+−4

=−4x+−28+−4

Combine Like Terms:

=−4x+−28+−4

=(−4x)+(−28+−4)

=−4x+−32

Answer:

=−4x−32

Answer:

26°9

iuuiiii not sure tttt

Answer:

5.35

Step-by-step explanation:

Answer:

In order to find the fraction of the 20 dollars that has been spent, we have to divide the amount spent by the total amount. So 0.65 is the fraction of 20 that is spent.

Step-by-step explanation:

Answer:

210

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

-9y and 7y are a pair of like terms.

Step-by-step explanation:

Like terms are the terms which have same variable and power. The coefficient is not necessary to be same.

Answer:

0.45

Step-by-step explanation:

easy

Answer:

12

Step-by-step explanation:

Answer:

−103

Step-by-step explanation:

Answer:

1/9 chance

Step-by-step explanation:

Answer:

See solution below

Step-by-step explanation:

Standard equation of a line in point slope form is expressed as y-y0 = m(x-x0)

m is the slope

c is the intercept

Fr the equation 3x+y = 17

y = -3x+17

m = -3

Given the point (4,8)

The equation of the line is expressed as;

y - 8 = -3(x-4)

y - 8 = -3x + 12

y + 3x = 12+8

y+3x = 20

This gives the required equation

For the equation y = 2x + 13

Slope m = 2

Since the line is perpendicular to the unknown line;

M = -1/2

Given the point (2, 3)

Get the equation

y - 3 = -1/2(x - 2)

2(y-3) = -(x - 2)

2y-6 = -x+2

2y+x = 2 + 6

2y+x = 8

This gives the required equation

Answer:

14

Step-by-step explanation:

Answer:

14

Step-by-step:

[tex](12 - 9)^{2} + \frac{15}{3} \\ (3) ^{2} + \frac{15}{3} \\ 9 + \frac{15}{3} \\ 9 + 5 \\ = 14[/tex]

Answer:

C.) Justin should have multiplie 3.8 and 7.9 first.

Step-by-step explanation:

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.

Answer:

240ft

Step-by-step explanation:

You have to multiply length x width x height In this case its 12 x 4 x 5

Answer:

313 is the answer

Step-by-step explanation:

gctckfjgufyd

Answer:

1/6 of the fans are Seton Hall fans

Answer:

2/12

srry if I'm wrong

Answer:

where is the explanation

Answer:

630

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

6 * 10 = 60 papers done and complete

100- 60 = 40

Answer:

40 papers will be remaining

Step-by-step explanation:

= As,It take 1 hour to grade 6 papers

= 1 -6

= 10-?

= by cross multiplying we get 60 papers

= 100 - 60

= 40 papers

Thank you

Answer:

The answer is 6.8

Step-by-step explanation:

Check on your calculator 6.8^2 equals 46

Answer:C. 2/3 cm/s

Step-by-step explanation:

Answer:

7.D) 107°

8. A) 123°

Step-by-step explanation:

To find the correct measurement of the angel the sum of the interior angels needs to equal 360°. Angels where the lines intersect with the circle would be both 90°. ( If that makes sense.)

90°+90°=180

180°+73°= 253°

360°-253°= 107°

The same for the second one. (those two angles would also be 90° each.)

90°+90°=180°

180°+57°=237°

360°-237°=123°

Answer:

-0.375%

Step-by-step explanation:

Here, we want to calculate the percentage error

Mathematically;

% error = error/true value * 100%

error= the difference between the true value and the calculated

That is;

79.8-80.1 = -0.3

% error = -0.3/80.1 * 100%

% error = -0.375%