3 years ago

X^2-7×+10 solve for quadratic formula.

2 answers:

8 0

Hey, did u mean solve using quadratic formula? If so... the image should help

sorry it’s a bit messy but I hope this helps.. if u didn’t mean to be solved this way please tell me and I’ll do my best to help :)

nordsb [41]3 years ago

5 0

What does that even mean

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27^x = 9^x − 4 Question 1 options: x = 8 x = 4 x = −4 x = −8

Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

$27^x=9^{x-4}$

Note that

$27=3^3\\ \\9=3^2,$

then

$27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}$

Rewrite the equation as

$3^{3x}=3^{2(x-4)},$

then

$3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8$

4 0

3 years ago

What is the value of the expression 4⁴?

Ghella [55]

Answer:

256 is the answer

Step-by-step explanation:

4×4×4×4=256.

3 0

3 years ago

When 4(0.5x+2.5y-0.7x-1.3y+4) is simplified, what is the resulting expression?

padilas [110]

Answer:

-0.8x + 4.8y + 16

Step-by-step explanation:

4(0.5x+2.5y-0.7x-1.3y+4) = 4( 0.5x - 0.7x + 2.5y - 1.3y + 4)

= 4( -0.2x + 1.2y + 4)

= 4*(-0.2x) + 4 *1.2y + 4*4

= -0.8x + 4.8y + 16

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2 years ago

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Arte-miy333 [17]

Answer:

attack on titans

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2 years ago

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store owner decides to mark up all items by 30%. What is the selling price of an item that originally cost $10?

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0.030 × 10 =.0.3. 0.3 +10 = 10.3

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3 years ago