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Illusion [34]
3 years ago
14

(x + 3)(x + 7) ≡ x2 + ax + 21

Mathematics
1 answer:
Over [174]3 years ago
4 0
The answer is c. Hope this helps
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Sophie has 5 pieces of string that are 4 yards each. She uses 3 pieces that are each 3 feet long. How much string does Sophie ha
stich3 [128]

Alright, lets get started.

Sophie has 5 pieces of string that are 4 yards each.

1 yards = 3 feet,

So, 4 yards = 4 * 3 =12 feet

Total number of string she has = 5 piece

So, total length she has = 5*12 = 60 feet

It means she had 60 feet string in starting.

Now, She uses 3 pieces that are each 3 feet long, means

She uses = 3*3 = 9 feet

So, remaining string length will be = 60 - 9 = 51 feet

Means 51 feet string does Sophie have. : Answer

Hope it will help :)


5 0
3 years ago
Read 2 more answers
You know that 44% of a number x is 99 you also know that 22% of a number y is 55 what are the values of x and y which number is
Tomtit [17]
44% of a number x is 99
44%=0.44
0.44×99= 43.56


22% of a number y is 55
22%=0.22
0.22×55=12.1



the greater number is 44% of a number is 99 so the value is 43.56
4 0
3 years ago
Nathan wants to buy a car that costs $25,920 he has $3,000 as a down payment and his payments will be $450 for 6 years through r
sesenic [268]

he payed  3,000 in hand payment then gave checks per...mnth for 6 years to equal the needed amount


3 0
3 years ago
Select all ratios equivalent to 3:5.<br> 13:30<br> 4:15<br> 6:10
uysha [10]

Answer:

6:10

Step-by-step explanation:

3:5 is equivalent to 6:10 because you multiply both 3 and 5 by 2 and you get 6:10. every thing else is wrong

6 0
2 years ago
Read 2 more answers
Solve the equation and check the solution4.4x-4=3.4x
PolarNik [594]
4.4x-4=3.4x

Substract '-3.4x' at LHS nad the RHS of the above expression.

\begin{gathered} 4.4x-4-3.4x=3.4x-3.4x \\ 4.4x-3.4x-4=0 \\ x-4=0 \end{gathered}

Add '4' on both LHS and RHs of the above expression.

undefined

4 0
1 year ago
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