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miss Akunina [59]
3 years ago
9

Ill give brainliest please help with these formulas!! (show work)

Mathematics
1 answer:
lesya692 [45]3 years ago
4 0

Answer:. for number 1 is height

Step-by-step explanation:

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YES I WILL MARK BRAINLIST:D
emmasim [6.3K]

she can purchase 6 hotdogs

5 0
3 years ago
Read 2 more answers
What equivalent to 5m(m+3)
Lostsunrise [7]

Answer:

5m^2 + 15m

Step-by-step explanation:

use distributive property:

5m(m) is 5m^2

5m(3) is 15m

which is 5m^2 + 15m

3 0
3 years ago
Thank you guys for helping me I know I'm being annoying
Ierofanga [76]
A² + b² = c²

c² = 4² + 6.5²

c² = 58.25

c = 7.63

Perimeter = 4 + 6.5 + 7.63 = 18.13 units.

Perimeter after the increase in scale = 18.13 x 4 = 72.52 units.

Answer:  72.52 units
8 0
3 years ago
Subtract and simplify. Show work please!
ra1l [238]

1) Final expression: +7y^2-6y-17

2) Final expression: 21x^3-46x^2+59x-30

Step-by-step explanation:

1)

The first expression is

(-2y^2-11y-7)-(-9y^2-5y+10)

First, we remove the 2nd bracket by changing the sign of all the terms inside:

-2y^2-11y-7-+9y^2+5y-10

Now we group the terms with same degree together:

(-2y^2+9y^2)+(-11y+5y)+(-7-10)

Now we solve the expression in each brackets:

(-2y^2+9y^2)+(-11y+5y)+(-7-10)=\\+7y^2-6y-17

So, this is the final expression.

2)

The second expression is

(7x-6)(3x^2-4x+5)

We apply the distributive property, so we rewrite the expression as follows:

(7x-6)(3x^2-4x+5)=7x(3x^2-4x+5)-6(3x^2-4x+5)

Solving both brackets,

7x(3x^2-4x+5)-6(3x^2-4x+5)=\\21x^3-28x^2+35x-18x^2+24x-30

Now we group terms of same degree together:

21x^3-28x^2+35x-18x^2+24x-30=\\21x^3+(-28x^2-18x^2)+(35x+24x)-30

And solving each bracket,

21x^3+(-28x^2-18x^2)+(35x+24x)-30=\\21x^3-46x^2+59x-30

So, this is the final expression.

Learn how to simplify expressions:

brainly.com/question/7014769

brainly.com/question/11007572

brainly.com/question/11334714

#LearnwithBrainly

3 0
3 years ago
Karen has 16$ to spend on games.if she only spent 14$ what percent of her money did she spend
nevsk [136]
14/16= .875 the answer is 87.5%
3 0
3 years ago
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