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4 years ago

Simplify the expression. Please help, really stuck!!

Mathematics

1 answer:

andrew11 [14]4 years ago

3 0

(-2y + 5 ) ( y+3)
= -2y^2 -6y +5y +15
= -2y^2 - y +15
the answer is B

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Explain how to create an equation with infinitely many solutions

MrRissso [65]

Answer:

You can start with any statement in the form a = a. Then add the same variable term to both sides, and add the same constant term to both sides. Combine like terms on each side.

Step-by-step explanation:

i got this online i hope it helps

7 0

3 years ago

44 is equal to 8 times a number minus 4. what is the number?

postnew [5]

Answer:

Step-by-step explanation:

Let "a number" = x

44 = 8x - 4

Simplify. Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First add 4 to both sides:

44 (+4) = 8x - 4 (+4)

44 + 4 = 8x

48 = 8x

Isolate the variable, x. Divide 8 from both sides:

(48)/8 = (8x)/8

x = 48/8

x = 6

6 is your answer.

3 0

4 years ago

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Can someone help me pls

creativ13 [48]

Answer:

Step-by-step explanation:

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5 0

3 years ago

Write a equation that represents this comparison sentence 32 is 8 times as many as 4

inna [77]

32 = 8 x 4 I think that is the answer

7 0

3 years ago

Triangle ABC is an isosceles triangle in which side

Shkiper50 [21]

Answer:

Option B.

Step-by-step explanation:

Consider the below figure attached with this question.

It is given that triangle ABC is an isosceles triangle.

From the below figure it is clear that the vertices of triangle are A(-2,-4), B(2,-1) and C(3,-4).

Distance formula:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Using this formula, we get

$AB=\sqrt{(2-(-2))^2+(-1-(-4))^2}=\sqrt{16+9}=5$

$BC=\sqrt{(3-2)^2+(-4-(-1))^2}=\sqrt{1+9}=\sqrt{10}$

$AC=\sqrt{(3-(-2))^2+(-4-(-4))^2}=\sqrt{25}=5$

Now,

Perimeter of triangle ABC = AB + BC + AC

$=5+\sqrt{10}+5$

$=10+\sqrt{10}$

So, perimeter of triangle ABC is $10+\sqrt{10}$ units.

Therefore, the correct option is B.

4 0

3 years ago

Read 2 more answers