4 years ago

This is homework No one is here to help me could you

Mathematics

1 answer:

sertanlavr [38]4 years ago

6 0

B is the correct answer

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ANSWER QUICK PLEASE!!!!!!! 15 POINTS

Nesterboy [21]

3 is the answer beacause she can build a domaind, square, and a rectangle

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4 years ago

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12 + 3 to the power of 2 + 50<br><br> (using PEMDAS)

Musya8 [376]

First you do 3 to the 2nd power which is 9 then you just add 12+9+50= 71

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3 years ago

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Mary is 21 years old. Her age is 9 years more than 3 times Henry's age. Which equation can be used to determine x, Henry's age i

luda_lava [24]

Answer:

3x + 9 = 21

Step-by-step explanation:

Let Henry's age be x

Mary's age = 9 + 3x

21 = 9 + 3x

Can also be written as 3x + 9 = 21

4 0

2 years ago

Which table describes the behavior of the graph of f(x) = 2x3 – 26x – 24?

In-s [12.5K]

Answer:

For x∈ {-∞,-3} y<0, below x-axis

x∈ {-3,-1} y>0, above x-axis

x∈ {-1,4} y<0, below x-axis

x∈ {4,∞} y>0, above x-axis

Step-by-step explanation:

f(x)= $2x^{3}-26x-24$

$2x^{3}-26x-24$ =0

$2x^{3}-26x-24=0\\2x^{3}-2x-24x-24=0\\2x(x^{2} -1)-24(x+1)=0\\2x(x+1)(x-1)-24(x+1)=0\\(x+1)(2x^{2} -2x-24)=0\\=> x+1=0 => x_{1}=-1\\$

$=> 2x^{2} -2x-24=0\\=>2(x^{2} -x-12)=0\\=> x^{2} -x-12=0\\=> x^{2} -4x+3x-12=0\\=> x(x-4)+3(x-4)=0\\=> (x-4)(x+3)=0\\$

$=> x-4=0\\=> x_{2}=4\\=> x+3=0\\=>x_{3}=-3\\$

For x∈ {-∞,-3} y<0, below x-axis

x∈ {-3,-1} y>0, above x-axis

x∈ {-1,4} y<0, below x-axis

x∈ {4,∞} y>0, above x-axis

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4 years ago

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Professor Smith has a total of 250 students,

Rudiy27

Answer:

3/5 and 250 the number of girls is 150

Step-by-step explanation:

5 0

3 years ago