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VashaNatasha [74]
4 years ago
12

Find the smallest zero for the function h(x)=4x-8x-60. what does x equal?

Mathematics
2 answers:
Leona [35]4 years ago
8 0
This is ur required result in attachment

Schach [20]4 years ago
3 0
The smallest root is -5. The other is 3. 

You can get these by factoring. The easiest way to do so is by pulling out a 4 first and then using your normal factoring patterns. 
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Rebecca and Megan are shopping at a store that sells jewelry, scarves, and purses. The cost of all the items at the store includ
nadezda [96]
$21 would be the price of all three necklaces.  But you need only 1 necklace so divide by 3, and the answer is $7.  

6 0
4 years ago
Read 2 more answers
If x-y=6 and x^2+y^2=24, find x^3-y^3.
erik [133]

Answer:

162.06

Step-by-step explanation:

sorry i'm not the best an explaining but i'm confident in my answer.

the first thing to do is get rid of the ² in x²+y²=24, we do this by √24 which ≅4.90 (i rounded to the hundreth place)

then we have this

x-y=6

x+y=4.90

I am using the elmination method. To do that you need to get two letters to have the same coefficient (in 4x 4 is the coefficient) with oposite signs (one possitive one negitive)

In our equation here we see that the same coefficient is 0, and there is oposite signs for y. Therefore we can add the two equations and get

2x=10.9 (the y cancels out)

now we have a simple equation and all that is left is to solve it

10.9/2=5.45

x=5.45

Now we need to find y we do that by pluging the x value into one of the equations I choose the first one becasue its easiest.

(5.45)-y=6  

y= - .55

now that we have both x and y plug them into the final equation (5.45)³-(-.55)³= 161.89-(-.17) =162.06

Therefore x³-y³≅162.06!

(if you have any questions or would like to debate the answer please let me know!)

3 0
3 years ago
If √17 is a side length of a square, what does that mean about the area? Explain.
alexandr1967 [171]

Answer:

It means the area of the square is 17.

Step-by-step explanation:

To find the area of a square you must multiply the length by the width (A=LxW)

to find area of square you would have to multiply squareroot of 17 by squareroot of 17 (because all 4 sides of a square are equal to each other). That would equal squareroot of 289. When you simplify that further, the answer would be 17.

5 0
3 years ago
The following forces are applied to a box. What is the net force acting on the box? Question 3 options:
Eddi Din [679]

Step-by-step explanation:

net force acting on the box is,

10 + 20 - 5

→ 30 - 5 = 25

therefore, 25 N towards left is correct

Hope this answer helps you dear!

5 0
2 years ago
According to creditcard , the mean outstanding credit card debt of college undergraduate was $3173 in 2010. A researcher believe
Mamont248 [21]

Answer:

a. The null and alternative hypothesis can be written as:

H_0: \mu=3173\\\\H_a:\mu< 3173

b. A Type I error is made when a true null hypothesis is rejected. In this case, it would happen if it is concluded that the actual mean outstanding credit card debt of college undergraduate is significantly less than $3173, when in fact it does not.

A Type II error is made when a false null hypothesis is failed to be rejected. In this case, the actual mean outstanding credit card debt of college undergraduate is in fact less than $3173, but the test concludes there is no enough evidence to claim that.

Step-by-step explanation:

We have a prior study of the mean outstanding credit card debt of college undergraduate that states that it was $3173 in 2010.

A researcher believes that this amount has decreased since then.

Then, he has to perform a hypothesis test where the null hypothesis states that the mean is still $3173 and an alternative hypothesis that states that the actual credit card debt is significantly smaller than $3173.

The null and alternative hypothesis can be written as:

H_0: \mu=3173\\\\H_a:\mu< 3173

3 0
4 years ago
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