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Pie
2 years ago
11

What are the zeros of f(x) = x2 + 2x - 80?

Mathematics
1 answer:
Lubov Fominskaja [6]2 years ago
8 0

Answer:

The zeros are 8 and -10, all u have to do is substitute x for those values, factor it, or graph it.

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you have a piece of wood that is 72 inches long u cut the wood into three pieces the second piece is 6 inches longer than the fi
tangare [24]

Let

x---------> the length of the first piece

y---------> the length of the second piece

z---------> the length of the third piece

we know that

x+y+z=72 -------> equation 1

y=x+6 -----> solve for x

x=y-6 -------> equation 2

z=6+y -------> equation 3

substitute equation 2 and equation 3 in equation 1

[y-6]+y+[6+y]=72

3y=72

y=(72/3)=24 in

<u>Find the value of x</u>

x=y-6 -------> equation 2

x=24-6=18 in

<u>Find the value of z</u>

z=6+y -------> equation 3

z=6+24=30 in

therefore

<u>the answer is</u>

the length of the first piece is 18 in

the length of the second piece 24 in

the length of the third piece is 30 in

7 0
3 years ago
Please help and tell me which answer on the bottom is correct. I don't know how to do math..
Illusion [34]

Answer:

875

Step-by-step explanation:

30*15=450

30*10=300

20*5=100

12.5+12.5=25

450+300+100+25=875

I worked from bottom to top

3 0
3 years ago
Read 2 more answers
What is the surface area of the cube shown?<br><br> 6.5 lenth 6.5 hieght
swat32

Answer:

253.5

Step-by-step explanation:

basically i had the same question so yeah! and im a pro at math

6 0
3 years ago
Read 2 more answers
Needing help, the secretary of the united states department of agriculture asked your teacher, "if a chicken-and-a-half can lay
Flura [38]

we are given that

3 chickens to lay 32 eggs

now, we can find number of eggs per chicken

number of eggs per chicken= (total eggs)/(total chicken)

so, we get

number of eggs per chicken is

=\frac{32}{3}

now, we can set up following

1.5 chicken : 1.5 eggs : 1.5 days  

3 chickens : 3 eggs : 1.5 days  

1 chicken : 1 egg : 1.5 days

Since, changing number of chicken won't affect time

time to lay eggs will always remain same

so,

for 1 chicken to lay =\frac{32}{3} eggs

it takes

=\frac{32}{3}*1.5 days

=16 days..............Answer


8 0
2 years ago
8,4,6,6,7,7,9,4,8,5 find the mean
koban [17]

Answer: 6.4 is the mean of the set of numbers

Step-by-step explanation:

8+4+6+6+7+7+9+4+8+5=64

64 divided by 10 = 6.4

Hope this helps!

6 0
2 years ago
Read 2 more answers
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