Please help to solve this

Mathematics

1 answer:

Lerok [7]2 years ago

7 0

Step-by-step explanation:

I think it will help you.

The image above will help you

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Consider the following expression. 5(1+6) (2b+7) Select all of the true statements below.

Vesna [10]

Answer:

Option B
Option C
Option E

Explanation:

Option B is true because both of the terms are constants. Hence, they are like terms.
Option C is true because the coefficient of a term is basically the constant. If there is no constant, then the coefficient is 1.
Option E is true because the expression has been multiplied by 5.

6 0

2 years ago

Can someone please explain 7 and 8 to me? I really don’t get it that well. On 7, why are they congruent? Why is it false for 8?

Crazy boy [7]

Answer: Look below :)

Step-by-step explanation:

7. AD and CD are congruent. Each of the triangles are the same in length and shape (both are right triangles). They are the same but are mirrored over the line BD.

8. I have no idea. Sorry.

5 0

3 years ago

Read 2 more answers

Solve the system by substitution. - 8x + y = -32 - 3x – 10 = y (,)

agasfer [191]

Answer:

$x=2,\:y=-16$

Step-by-step explanation:

$\begin{bmatrix}-8x+y=-32\\ -3x-10=y\end{bmatrix}\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:-8x+y=-32:\quad x=-\frac{-32-y}{8}\\\\\mathrm{Subsititute\:}x=-\frac{-32-y}{8}\\\begin{bmatrix}-3\left(-\frac{-32-y}{8}\right)-10=y\end{bmatrix}\\\\Simplify\\\begin{bmatrix}\frac{3\left(-32-y\right)}{8}-10=y\end{bmatrix}\\\\\mathrm{Isolate}\:y\:\mathrm{for}\:\frac{3\left(-32-y\right)}{8}-10=y:\quad y=-16\\\\\mathrm{For\:}x=-\frac{-32-y}{8}\\\\\mathrm{Subsititute\:}y=-16\\x=-\frac{-32-\left(-16\right)}{8}\\$