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Slav-nsk [51]
3 years ago
11

Can someone help with this question?

Mathematics
2 answers:
faltersainse [42]3 years ago
8 0
The answer is c. because when you distribute it out, it equals the top equation
chubhunter [2.5K]3 years ago
4 0
Te terms are
5x², -25x and 10
factor
5x²=5*x*x
-25x=-1*5*5*x
10=2*5
common factor is 5

revertse distributive
ab+ac=a(b+c)
5x²-25x+10=5(x²)+5(-5x)+5(2)=5(x²-5x+2)

C is answer
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Sally and Karl work at different jobs. Sally earns $7 per hour and Karl earns $5 per hour. They each earn the same amount per we
Lisa [10]

Answer:

Karl works 7 hours a week

Step-by-step explanation:

Step 1: Determine total amount that Sally earns

Total amount Sally earns=rate per hour×number of hours worked(h)

where;

Rate per hour=$7 per hour

Number of hours worked=h

Replacing;

Total amount Sally earns=(7×h)=7 h

Step 2: Determine total amount Karl earns

Total amount Karl earns=rate per hour×number of hours worked

where;

rate per hour=$5

number of hours worked=2 more than Sally=h+2

replacing;

Total amount Karl earns=5(h+2)

Step 3: Equate Sally's total earnings to Karl's total earnings and solve for h

7 h=5(h+2)

7 h=5 h+10

7 h-5 h=10

2 h=10

h=10/2

h=5

Karl works (h+2) hours=(5+2)= 7 hours

Karl works 7 hours a week

7 0
3 years ago
Use technology or a z-score table to answer the question.
matrenka [14]

Answer:

D

Step-by-step explanation:

I usually use a z-score table, but you can do this with a calculator.

If we go to a z-score table, we first look up the first two digits (in this case, 2.8) in the far left column.  Then we find the hundredths digit in the top row (0.07).  Where they intersect is P(z < 2.87).

P(z < 2.87) = 0.9979

Answer D.

4 0
3 years ago
Jeremy is randomly selecting an outfit to celebrate Probability Day at his school. He can choose from a green (G) or purple (P)
asambeis [7]
C socks, and boots.
Because it could be cold outside?
6 0
2 years ago
What number comes next in this sequence? 1 2 8 48 384 ___? Is it 786 1536 720 580 or 3840?
pychu [463]
It would be 3840. The pattern is: x2, x4, x6, x8, x10. Hope that helps! :) :D
8 0
3 years ago
Volume (PLEASE I NEED HELP ASAP)
LekaFEV [45]

Answer:

Just multiply the equations

Step-by-step explanation:

for example num 1, 25 x 10 = 250 then 250 x 10 which is 2,500

8 0
2 years ago
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