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3 years ago

1. change .84 to a fraction, reduced

Mathematics

1 answer:

Inga [223]3 years ago

5 0

Answer:

1. 21/25

2. 72

3. -4

4. Typo?

2I+2w= 33

21+2w=34

5. Dont understand this question withought context

Step-by-step explanation:

1. 84/4 and 100/4 is 21/25

2. 3(6)(-4) miltiplication

3. worry about parenthesis first, a positive plus a negatative goes to minus so 6-4 then multiply 2 times -2 and get -4

2I+2w is 2(10)+2(6.5)

21+2w is 21+2(6.5)

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4 years ago

3 grapes= 1 pineapple

CaHeK987 [17]

Answer:

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Step-by-step explanation:

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Then

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then

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3 years ago

<img src="https://tex.z-dn.net/?f=7x%5E%7B2%7D%20-3%3D60" id="TexFormula1" title="7x^{2} -3=60" alt="7x^{2} -3=60" align="absmid

Pavel [41]

Answer:

Step-by-step explanation:

7x² - 3 = 60

7x² - 3 - 60 = 0

7x² - 63 = 0

Simplify the terms

Divide both terms by 7

That's

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Solve the quadratic equation

Use difference of two squares

That's

a² - b² = ( a + b)(a - b)

x² - 9 = 0

(x + 3)(x - 3) = 0

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x = - 3 x = 3

Hope this helps you

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