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TiliK225 [7]
2 years ago
8

Write an equivalent expression for (x - 11)(x + 9).

Mathematics
1 answer:
vodka [1.7K]2 years ago
7 0

Answer:

x²-2x-99

Step-by-step explanation:

(x-11)(x+9) - foil method

x times x = x squared

x times 9 = 9x

-11 times x = -11x

-11 times 9 = -99

x squared + 9x + 11x + -99

x squared-2x-99

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W<br> 45<br> U<br> 30<br> V<br> wwtuw<br> X +45<br> Find VW
hodyreva [135]

Answer:

VW=WU+UV

VW = 45+30

VW = 75

I hope I helped you^_^

6 0
2 years ago
Mary borrowed $700 from a bank for 3 years and was charged simple interest. The total interest that she paid on the loan $42. As
Mashcka [7]

Answer:

2 %

Step-by-step explanation:

Money borrowed, Principal, P = $ 700

time of investment, T = 3 years

Total interest paid, Simple interest, S.I = $ 42

Let the rate of interest is R.

Use the formula for simple interest.

S.I. =\frac{P\times R\times T}{100}

By substituting the values

42 =\frac{700\times R\times 3}{100}

4200 = 2100 R

R = 2 %

Thus, the rate of interest is 2%.

3 0
3 years ago
Y
alina1380 [7]

Answer:

the coordinates of the point of x and y is -1÷ 2 and -√3÷ 2

Step-by-step explanation:

The computation of the coordinates of the point is shown below:

The angle is

= 4π ÷ 3

The radius is 1 unit

Now

x = rcos\theta, and y = rsin\theta

Now

x = 1cos(4π ÷ 3) = -1÷ 2

y = 1sin(4π ÷ 3) = -√3÷ 2

hence, the corordinates of the point of x and y is -1÷ 2 and -√3÷ 2

8 0
2 years ago
Read 2 more answers
What is the solution to the equation? r/7.1=4.2
sweet [91]

Answer: x=3.4

Step-by-step explanation:

0.5x + 4.2 = 5.9 \\ 0.5x = 5.9 - 4.2 \\ 0.5x = 1.7 \\ x = 1.7 \div 0.5 \\

3 0
3 years ago
Read 2 more answers
Help me with this?!!!!
anygoal [31]

Answer:

14

Step-by-step explanation:

we can use sin(30⁰) to solve this and the units will be 14

4 0
3 years ago
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