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3 years ago

Simplify each expression(OOF PLEASE HURRY FGHJHGFGHJ):

Mathematics

1 answer:

Svetach [21]3 years ago

6 0

(1) -(5y - 2)= -5y+2

(2) -5 (3n + 1)= -15n - 5

(3) too long to do

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find the average of the numbers 5/8, 9/10, 2 3/4 write the solution as a mixed number or fraction in lowest terms.

oksano4ka [1.4K]

Answer:

3.025, 121/40

Step-by-step explanation:

3 0

2 years ago

Y = (x + 9)(x-4)<br><br>Now we need to multiply our binomials

MA_775_DIABLO [31]

Answer:

$x^{2}$ +5x-36

Step-by-step explanation:

To multiply binomials there are 2 ways. F.O.I.L., or the box method.

I will use the box method, and I hope it helps you!

After looking at the picture, this is not the answer quite yet.

$x^{2}$ $+9x$ $-4x\\$ $-36$

Subtract 4x from 9x.

9x-4x=5x

So, the answer will be $x^{2}$ +5x-36

8 0

3 years ago

Read 2 more answers

If sin A= 0.8, find the positive value of cos A

Ahat [919]

Answer:

cosA = 0.6

Step-by-step explanation:

Using the Pythagorean identity

sin²A + cos²A = 1 ( subtract sin²A from both sides )

cos²A = 1 - sin²A ( take the square root of both sides )

cosA = ± $\sqrt{1-sin^2A$

Since only the positive value is required , then

cosA = $\sqrt{1-(0.8)^2}$

= $\sqrt{1-0.64}$

= $\sqrt{0.36}$

= 0.6

6 0

3 years ago

Read 2 more answers

6m−7)⋅4=left parenthesis, 6, m, minus, 7, right parenthesis, dot, 4, equals ¿Atorado?

mars1129 [50]

Answer:

24m - 28

Step-by-step explanation:

Given the expression (6m−7)⋅4, we are to simplify it. Using the distributive law;

A(B+C) = AB + AC [A is distributed over B and C]

For the expression (6m−7)⋅4, we will distribute 4 over 6m and -7 as shown;

(6m−7)⋅4 = 4(6m) - 4(7)

(6m−7)⋅4 = 24m - 28

Hence (6m−7)⋅4 = 24m - 28

7 0

3 years ago

PLS HELP ME ON THIS QUESTION I BEG

densk [106]

Answer:

cant you say what you need help on not just scream at people to do it for you

Step-by-step explanation:

20 inches and if its wrong i just started learning this

7 0

3 years ago