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3 years ago

Select the interval where f is negative.

Mathematics

2 answers:

sineoko [7]3 years ago

5 0

Answer: I guess B

Step-by-step explanation:

Sloan [31]3 years ago

3 0

Answer:

Step-by-step explanation:

trust me

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HEY, CAN YU PLEASEEE HELP

gladu [14]

Answer:

the last one

Step-by-step explanation:

as you can see, all of the answers are different. b and c are the same, a and d are the same. but just switched around, but d is the answer since the numbers are switched, the letters didn't switch around. so it's the last one, the expressions are the same

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3 years ago

Three friends earned more than $200 washing cars they pay their parents $20 for supplies and divided the rest of the money equal

kow [346]

$90 because 200-10=180 and divide 180 by 2 which is 90.

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3 years ago

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PLEASE HELP ME! Carla collected this data about the number of sunny days each month. Carla wants to know which 6 months had the

soldi70 [24.7K]

You would want to choose the graph B, for this is the most detailed graph that would Carla the most accurate answer.

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3 years ago

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2(p+1)=18<br> A)8.5<br> B)9.5<br> C)8<br> D)10

Paladinen [302]

The answer to this question is:

C) 8.

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3 years ago

Triangle ABC has vertices at (-3, -1), (-1, 2) and (6, 1). What is the perimeter of triangle ABC, rounded to the nearest tenth?

Marta_Voda [28]

$Perimeter=19.9units$

Why?

We can find the perimeter of any triangle adding the length of its sides. Since we are given 3 points, we need to calculate the length of the three sides of the triangle, and then add them to know the perimeter of the triangle.

Let be the points:

A(-3,-1)

B(-1,2)

C(6,1)

<h3>- Distances</h3>

From A to B:

$d(A,B)=\sqrt{(-1-(-3))^{2}+(2-(-1)^{2}}\\\\d(A,B)=\sqrt{(2)^{2}+(3)^{2}}=\sqrt{4+9}=3.61units$

From A to C:

$d(A,C)=\sqrt{6-(-3))^{2}+(1-(-1)^{2}}\\\\d(A,B)=\sqrt{(9)^{2}+(2)^{2}}=\sqrt{81+4}=9.22units$

From B to C:

$d(B,C)=\sqrt{6-(-1))^{2}+(1-2)^{2}}\\\\d(A,B)=\sqrt{(7)^{2}+(-1)^{2}}=\sqrt{49+1}=7.07units$

Now, calculating the perimeter, we have:

$Perimeter=d(A,B)+d(A,C)+d(B,C)=3.61units+9.22units+7.07units\\\\Perimeter=19.9units$

Have a nice day!

5 0

3 years ago