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3 years ago

ZA and ZB are vertical angles. If m A = (8x – 20)° and m B = (3x – 5)º,

Mathematics

1 answer:

kobusy [5.1K]3 years ago

4 0

Answer:

x=11

Step-by-step explanation:

Vertical angles are congruent, so m∠A = m∠B.

4x+8 = 5x-3

Subtract 5x from both sides.

-1x+8=-3

Subtract 8 from both sides to isolate the variable.

-1x=-11

Divide both sides by -1 to solve for x.

x=11

Plug in 11 for x into m∠A=(4x+8)=(4(11)+8)=(44+8)=52.

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127.86<br> +78.95<br> +23.09

rjkz [21]

Answer:

229.9

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If M (4.2) is the midpoint of AB and A (-5, -3), find the coordinates of B.

loris [4]

Given:

M(4,2) is the midpoint of AB and A(-5, -3).

To find:

The coordinates of B.

Solution:

Let the coordinates of point B are (a,b).

Midpoint formula:

$Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

M(4,2) is the midpoint of AB and A(-5, -3).

$M=\left(\dfrac{-5+a}{2},\dfrac{-3+b}{2}\right)$

$(4,2)=\left(\dfrac{-5+a}{2},\dfrac{-3+b}{2}\right)$

On comparing both sides, we get

$4=\dfrac{-5+a}{2}$

$8=-5+a$

$8+5=a$

$13=a$

And,

$2=\dfrac{-3+b}{2}$

$4=-3+b$

$4+3=b$

$7=b$

Therefore, the coordinates of point B are (13,7).

4 0

3 years ago

Identify the terms, coefficients and constants in the following: 3y + 3x - 2 * 5. Make it clear which are the terms, coefficient

vodka [1.7K]

Answer:

the terms/constants are 2 and 5 the coefficients are 3y and 3x

Step-by-step explanation:

terms/constants are the same thing

coefficients are numbers with letters behind them

<h2><u><em>BRAINLIEST PLEASE!!!!!!!!</em></u></h2>

3 0

3 years ago

If a school bought 3 cheese pizzas and 1 pepperoni pizza how many cheese and pepperonis pizzas did they get if they bought 6 che

oksian1 [2.3K]

$\text{Hello there!}\\\\\text{Turn this into a ratio:}\\\\\text{For everyone 3 cheese pizzas, they get 1 pepperoni pizza}\\\\\text{The ratio would be 3:1}\\\\\text{We need to find how many pepperoni pizzas they got if they bought 6}\\\text{cheese pizzas}\\\\\text{3 times 2 makes 6, so multiply 1 times to get your answer}\\\\\text{The ratio would be 6:2}\\\\\boxed{\text{2 pepperoni pizzas (8 pizzas in total)}}$

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3 years ago

HELP ME!,!,,,! I’ve been waiting for 30 minutes

Furkat [3]

Answer:

5/9=1/2

12/13=1

2/13=0

Step-by-step explanation:

These are just based on what I think and also

5/9=0.55... so closer to 0.5 which =1/2

12/13 is just really close to 13/13

2/13 is really close to 0/13 rather than 6.5/13, which is 1/2

5 0

2 years ago