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2 years ago

Which expression is equivalent to 45 divided by (2 - x)

Mathematics

1 answer:

makvit [3.9K]2 years ago

6 0

Answer:

---------

(2 - x)

Step-by-step explanation:

That would be:

---------

(2 - x)

Also valid: 45/(2 - x)

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Complete the solution of the equation. Find the value of y when x equals -10. 2x-9y=-38

Rasek [7]

That is a direct substitution. make y in an isolated term:

2x + 38 = 9y
(2x + 38)/9 = y

8 0

3 years ago

A.3.5 B.-2.5 C.-5.5 D.2.5

mart [117]

The answer is 2.5 because the point is on -1.5, so -1.5+4=2.5

7 0

3 years ago

Can you please help me

mixer [17]

Answer:

Step-by-step explanation:

cause both are congruent which means the same size if one has 14 why shouldnt the other too

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3 years ago

HELP ME ANSWER THIS QUESTION QUICKLY BEFORE KATIE REMOVES IT FOR SOME RANDOM REASON.

Marrrta [24]

Answer:

$\vec{BC}=2b - 4a$

$\vec{XY}=a+ b$

$\vec {CY}=a - 2b$

Step-by-step explanation:

By the triangular law of vector addition:

$\vec {CY}=\vec {CA}+ \vec{AY}$

$\vec {CY}=a - 2b$

We have that;

$\frac{YB}{AY} = \frac{3}{1}$

$\implies YB = 3 AY \\ \vec {YB} = 3 \vec {AY}$

$\vec {YB} = 3 a$

From triangle ABC,

$\vec{BC}=\vec{BA}+\vec{AC} \\ \vec{BC}=2b - 4a$

Again from triangle XYB

$\vec{XY}=\vec{YB}+\vec{BX} \\$

$\vec{XY}=\vec{YB}+ \frac{1}{2} \vec{BC}$

$\vec{XY}=3a+ \frac{1}{2} (2b - 4a)$

$\vec{XY}=3a+ b - 2a \\ \vec{XY}=a+ b$

4 0

3 years ago

What does AD equal? PICTURE INCLUDED* Triangle congruence and similarity.

mafiozo [28]

Answer:

AD = 7

Step-by-step explanation:

Given that the two triangles are similar by the SSS (side side side) postulate, the triangles share the same ratios when it comes to their sides.

We know the values for lines DB, EB and CB, therefore we can solve for AB, and subtract DB to find AD

We can solve the problem by solving for x:

$\frac{x}{32} =\frac{21}{24}$

Cross multiply.

$24x = 672$

Simplify.

$x=28$

Subtract the value of DB to find AD.

$28-21=7$

$AD=7$

8 0

3 years ago