2 years ago

Which will result in a difference of squares?

Mathematics

1 answer:

oksian1 [2.3K]2 years ago

3 0

Answer:

Step-by-step explanation:

The correct answer is C, love from Gauthmath

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A cashier earns $7 an hour. If x is the number of hours worked, which function represents the cashier’s earnings? y = 7x y = x 7

Vilka [71]

I think its 7x since x represents the hours she worked. So lets say that she worked for 5 hours this day. It would be 5*7 which is $35. So it is 7x and if there is any choices you might say it as well so we can help you better

4 0

3 years ago

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How many people scored below 80? 21 18 11 12

Airida [17]

The answer would be 11

7 0

2 years ago

Find the area of the following figure below

abruzzese [7]

Answer:

Step-by-step explanation:

A=(a+b)/2xh

A=(6+9)/2x4

A=15/2x4

A=7.5x4

A=30

7 0

2 years ago

A theater has 56 rows of seats. If there are 13 seats in the first row, 18 in the 2nd row, 23 in the 3rd row. How many seats are

Anna35 [415]

Answer:

8428

Step-by-step explanation:

According to the Question,

Given, A theater has 56 rows of seats. If there are 13 seats in the first row, 18 in the 2nd row, 23 in the 3rd row.

We have a number sequence 13, 18, 23, ...

We can say that this is an arithmetic sequence because of the common difference 'd', is equal to 5, and the first term 'a1' is equal to 13.

The formula for the sum of an arithmetic sequence with n terms is given is $S_n= \frac{n}{2} [2a_1+(n-1)d]S$ .

Substitute the given values into the equation to solve for the sum of the 56 rows of seats.

$S_56= \frac{56}{2}[2(13)+(56-1)(5)]\\S_{56}=28\left[26+275\right]\\S_{56}=28\left[301\right]\\S_{56}=8428$

Therefore, there are 8428 seats in all.

4 0

3 years ago

Solve for x a.81 b.41 c.1681

Jlenok [28]

A=9 , b=40

Pythagorean theorem
$a^2+b^2=x^2 \\\\ x=\sqrt{a^2+b^2}=\sqrt{9^2+40^2}=\sqrt{81+1600}=\sqrt{1681}=\sqrt{41^2}=41$

5 0

3 years ago