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3 years ago

I need help on the stared ones( I WILL MAKE YOU BRAINIEST)!

Mathematics

2 answers:

WINSTONCH [101]3 years ago

4 0

Answer:

Step-by-step explanation:

bottom left is 13a + 2b

bottom right is 15y - 6

jarptica [38.1K]3 years ago

4 0

Answer:

1) 13a + 2b

2) 15y² - 6

Step-by-step explanation:

3a + 2(b + 5a)

3a + 2b + 10a

13a + 2b

3y² + 3(4y² - 2)

3y² + 12y² - 6

15y² - 6

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3 years ago

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Step- by- Step Explanation

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3 years ago

Can i get some help :

Charra [1.4K]

Answer:

b = $\frac{7}{12}$

Step-by-step explanation:

b + $\frac{2}{3}$ = 1 $\frac{1}{4}$ ← change to an improper fraction

b + $\frac{2}{3}$ = $\frac{5}{4}$

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2 years ago

Read 2 more answers

Whats 1-2x+3y for x=-2 and y=-5 ?

lawyer [7]

Answer:

-10

Step-by-step explanation:

2*-2=-4

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1-(-4)+(-15)=-10

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3 years ago

Given the triangle that has a base of five less than triple the height. The height is 2x+6.

Deffense [45]

Answer:

Step-by-step explanation:

H = 2x+6 - the hight

3H = 3(2x+6) - triple the hight

3H-5 = 3(2x+6) - 5 - five less than triple the height

Area of triangle: A = 0.5BH

B = 3(2x+6)-5 = 6x + 18 - 5 = 6x + 13

H = 2x+6

So:

A = 0.5(2x+6)(6x+13) = (x+6)(6x+13) = 6x² + 13x + 36x + 78

A = 6x² + 49x + 78

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3 years ago