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2 years ago

!!PLZ HELP WILL MARK BRAINLIEST !!

Mathematics

2 answers:

Minchanka [31]2 years ago

7 0

Answer:

2y I think ( I am not sure tho)

KATRIN_1 [288]2 years ago

3 0

The graph is increasing in two intervals

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Is (x +1) a factor of f(x) = x3 + 2x2 −5x − 6 ? Yes No

sertanlavr [38]

Answer:

Yes.

Step-by-step explanation:

You can find it out by factoring but ill do it easier way.

(x + 1 ) = 0 put the first and second equation to 0

x = -1

x³ + 2x² - 5x - 6 = 0 Now plug in the x in the equation

(-1)³ + 2(-1)² - 5(-1) - 6 = 0

0 = 0

so (x + 1) is a factor.

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3 years ago

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54 is 60% of what number? Enter your answer in the box. PLZ HELP I WILL GIVE BRAINLIEST

ivolga24 [154]

Answer:

Step-by-step explanation:

you do 54 ÷ 60% = 90

check:

60% of 90 is 54 .

can I have brainliest.

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3 years ago

If 1=3 2=3 3=5 4=4 5=4, then 6=?

jeyben [28]

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six equal to eight?????

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2 years ago

Find the degree of the monomial. -20.5

Nadya [2.5K]

Answer:

Step-by-step explanation:

-20.5 is the same as -20.5 $x^{0}$ , since anything to the zero power is equal to 1.

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2 years ago

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Cassie has test grades of 62, 85 and 89 on the first three tests in herpre-algebra class. What are the possible scores she can m

Vsevolod [243]

Explanation:

The test grade for 1st three tests = 62, 85, 89

Let the fourth test score = x

The result we hoping to get is grade B.

Let's find the average of the four test score

$\text{Average = }\frac{Su\text{ m of all test score}}{nu\text{mber of test score}}$ $\begin{gathered} s\text{ um of test scores = 62 + 85 + 89 + x} \\ nu\text{mber of test score = 4} \\ \frac{\text{62 + 85 + 89 + x}}{4}=\text{ Average} \end{gathered}$ $\begin{gathered} A\text{ grade B represents atleast 80} \\ \text{Atleast represents }\ge \\ \frac{\text{62 + 85 + 89 + x}}{4}\text{ }\ge\text{ 80} \\ \frac{\text{236 + x}}{4}\text{ }\ge\text{ 80} \end{gathered}$ $\begin{gathered} \text{236 + x }\ge\text{ }80(4) \\ \text{236 + x }\ge\text{ }320 \\ \text{subtract }236\text{ from both sides:} \\ 236\text{ - 236 + x }\ge\text{ }320\text{ - 23}6 \\ x\text{ }\ge\text{ 84} \end{gathered}$

This means Cassie needs to score 84 or more to get a grade of B

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1 year ago