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Ne4ueva [31]
2 years ago
8

Multiply out and simplify: (x-8) (x-7)

Mathematics
2 answers:
MariettaO [177]2 years ago
7 0
<h2>Answer:  x² - 15x + 56</h2>

<h3>Step-by-step explanation:</h3>

To expand the brackets, each term in the first bracket must be multiplied by each term in the second bracket and then simplified:

(x-8) (x-7) = (x × x) - (7 × x) - (8 × x) + (8×7)

               = x² - 7x - 8x + 56

               = x² - 15x + 56

Molodets [167]2 years ago
5 0

Answer: x^2-15x+56

Step-by-step explanation:

1-Distribute

x(x-7)-8(x-7)

2-Distribute

x^2-7x-8(x-7)

3-Distribute

x^2-7x-8x+56

4-Combine like terms

x^2-15x+56

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Find the 7th term of the geometric sequence -5, 15, 45, 135, 405,...
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Answer:

1,215

Step-by-step explanation:

Because if you think of it it multiplies by 3x so 3x5=? 15! 15x3=? 45! 45x3=? 405! 405x=3? 1,215! 1,215x3=? 3,645! anyways, I can go on and on I hope this answer was right!

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3 years ago
The dough that will be used to make a crescent roll is shown below.What is the area of the dough?
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Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
olga nikolaevna [1]
<h3>Answer:   1.15</h3>

==============================================================

Work Shown:

QR = 73

QP = 55

PR = x

Pythagorean Theorem

a^2 + b^2 = c^2

(QP)^2 + (PR)^2 = (QR)^2

(55)^2 + (x)^2 = (73)^2

3025 + x^2 = 5329

x^2 = 5329-3025

x^2 = 2304

x = sqrt(2304)

x = 48

PR = 48

----------

tan(angle) = opposite/adjacent

tan(R) = QP/PR

tan(R) = 55/48

tan(R) = 1.1458333 approximately

tan(R) = 1.15

8 0
3 years ago
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If z1=12(cos⁡55°+isin⁡55°) and z2=4(cos⁡95°+isin⁡95°), then |z1z2|=
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Answer:

This isn't middle school

Step-by-step explanation:

8 0
2 years ago
Last year a bamboo plant was 17 feet tall. It grew 10 feet this year. How tall is it now?
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