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ivanzaharov [21]
3 years ago
13

What is the product of (x-3) and (x+7)

Mathematics
1 answer:
aleksley [76]3 years ago
8 0

Answer: (x−3)(x+7)

=(x+−3)(x+7)

=(x)(x)+(x)(7)+(−3)(x)+(−3)(7)

=x^2+7x−3x−21

=x^2+4x−21

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The class mark of the interval 100 to 120 is​
Afina-wow [57]

Answer:

110

Step-by-step explanation:

= 120+100/2

=220/2

=110

CLASS MARK = HIGHEST OBSERVATION +LOWEST OBSERVATION BY 2

7 0
3 years ago
Can anyone help?????
Nina [5.8K]
School A because if you go up line "Day 10" and then find 6,000 the purple line in exactly on it. ;)

Hoped I helped!
8 0
3 years ago
The combined area of two squares is 17 square meters. the size of the larger Square are four times as long as the size of the sm
7nadin3 [17]

we are given that ,

The combined area of two squares is 17 square meters.

Area of square=(side)^2

Let the side length of smaller square be x

The size of the larger Square are four times as long as the size of the smaller square

Area \ of  \ smaller \ square \ =x^2

So Area of larger square=4x^2

The combined Area is 17 square meter.

x^2+4x^2=17\\\\5x^2=17\\\\x=\sqrt{\frac{17}{5}}

Hence the smaller square has the side length=\sqrt{\frac{17}{5}}

So the larger square has side length=2\sqrt{\frac{17}{5}}

5 0
4 years ago
8+2(x-6)=-2+2x-2 How many solutions does this have? Hurry plz
Svetradugi [14.3K]

Answer:

All real numbers are solutions.

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

8+2(x−6)=−2+2x−2

8+(2)(x)+(2)(−6)=−2+2x+−2 (Distribute)

8+2x+−12=−2+2x+−2

(2x)+(8+−12)=(2x)+(−2+−2) (Combine Like Terms)

2x+−4=2x+−4

2x−4=2x−4

Step 2: Subtract 2x from both sides.

2x−4−2x=2x−4−2x

−4=−4

Step 3: Add 4 to both sides.

−4+4=−4+4

0=0

8 0
3 years ago
A computer with software costs $2,938, and Catherine Stevens has agreed to pay a
Scorpion4ik [409]

Answer: She will pay 209.74056 each month

Step-by-step explanation:

firstly our cost of computer software = 2938

now the  percentage rate of the finance charge per 18 months will be

finance charge rate per 18 months = (rate/12) * 18 =  (19/12) * 18 = 28.5% = 0.285

now we find the finance charge

Finance charge = finance charge rate period * cash price

Finance charge = 0.285 * 2938 = 837.33

now we find the installment price

Installment price = finance charge + cash price

Installment price = 837.33 + 2938 = 3775.33

Installment payment = installment payments/number of payment (months)

Installment payment = 3775.44 / 18 = 209.74056

therefore she will pay a sum of 209.74056 each months.

3 0
3 years ago
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