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3 years ago

8

Factoring quadratic questions

mula1" title="x ^{2} - 7x - 30 = 0" alt="x ^{2} - 7x - 30 = 0" align="absmiddle" class="latex-formula">

1 answer:

just olya [345]3 years ago

4 0

(x-10) (x+3) is the factored form

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What is the answer to what X is?

solmaris [256]

Answer:

$x=3$

Step-by-step explanation:

By the exterior angle theorem,

$(45x)\degree=(57+x)\degree+(26x)\degree$

Group like terms and solve for x.

$45x-26x-x=57$

$19x=57$

Divide both sides by 19;

$x=3$

3 0

3 years ago

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Is 4 yards bigger than 13 feet

8_murik_8 [283]

1 yard = 3 feet

4 yards x 3 feet = 12 feet

12 feet is less than 13 feet

So False, 4 yards is <em>less than </em>13 feet

hope this helps

6 0

3 years ago

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Solve for C.<br> 5/4= -4c + 1/4

dybincka [34]

5/4= -4c + 1/4

Inverse operation

$\frac{5}{4} = -4c + \frac{1}{4}$

- 1/4 -1/4

5/4 - 1/4 = 4/4

$\frac{4}{4} = -4c$
-4c/-4 = 4/4 ÷ -4/1

4/4 *- 1/4 = c
-4/8 = c
c = -1/2

Answer: $c = - \frac{1}{2}$

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3 years ago

Write a conditional statement for Marla has a piano lesson every Tuesday.

mestny [16]

Answer: A, If it is Tuesday, Marla has a piano lesson.

B. is implying that they don’t cancel any lesson at all for any reason

C. is implying that they cannot reschedule a lesson for a different day

D. is implying that Marla cannot play piano at all unless it is for a lesson

5 0

3 years ago

4 less than the number product of a number and 8 is 44 .what it the number

Anettt [7]

Set up the problem like this: x - 4 + 8 = 44

x-4+8=44 (8-4)

x+4=44

-4 -4 (subtract 4 from both sides)

x=40

Answer: the number is 40.

3 0

3 years ago

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