3 years ago

Solve for the value of z. (9z+7) 74°

Mathematics

1 answer:

musickatia [10]3 years ago

8 0

Answer:

Step-by-step explanation:

9z + 7 + 74 = 180

9z + 81 = 180

9z = 99

z = 11

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Simplify y2+4y–16y+3y2.

nadya68 [22]

Answer:

4y^2-12y

Step-by-step explanation:

y^2+4y-16y+3y^2

=y^2+3y^2+4y-16y

=4y^2+4y-16y

=4y^2-12y

6 0

4 years ago

Help plz...................................

N76 [4]

Answer:

Step-by-step explanation:

These are similar triangles, so the ratio of their sides is the same for each side.

AB = 8 and BD = 10

So, the ratio is 8:10 or 4:5

Because the triangles are similar....

The ratio of AC:CE is also 4:5

12:15 = 4:5

So, 12 is the answer!

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3 years ago

2x(x+1)-2=2(x-3)(x+3)

Ilya [14]

Answer:

x=-8

Step-by-step explanation:

I solved for x and got this :)

Hope this helps :D

5 0

3 years ago

Read 2 more answers

If Someone Has 2000 Bassball cards And I Have 1 tenth of the fraction as many How Many Cards do I have

yaroslaw [1]

Answer:

200

Step-by-step explanation:

8 0

3 years ago

(3x-4y)^2-(3x-4y)(3x+4y)

zheka24 [161]

Answer:

$-24xy + 32y^2$

Step-by-step explanation:

Hello!

We can use the special binomial product formulas:

$(a + b)^2 = a^2 + 2ab + b^2$
$(a + b)(a - b) = a^2 - b^2$

<h3>Simplify</h3>

$(3x - 4y)^2 - (3x - 4y)(3x + 4y)$
$(9x^2-24xy+16y^2) - (9x^2 - 16y^2)$
$9x^2 - 9x^2 - 24xy + 16y^2 + 16y^2$
$-24xy + 32y^2$

The simplified form is $-24xy + 32y^2$

6 0

2 years ago