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katen-ka-za [31]

2 years ago

14

Help?Find the product. (a - b)(a – 7b)

1 answer:

Kruka [31]2 years ago

6 0

Answer:

all work shown and pictured

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What is the value of z?

UNO [17]

Answer:

z =23

Step-by-step explanation:

The three angles in a triangle add to 180 degrees.

62+95+z = 180

Combine like terms

157 +z = 180

Subtract 157 from each side

157-157 +z = 180-157

z =23

3 0

2 years ago

7 + r = 15<br><br>A() 22<br><br>B() 8<br><br>C() 105<br><br>D() 9

guajiro [1.7K]

Answer:

B

Step-by-step explanation:

7+r=15

-7 -7

r = 8

B.8

5 0

2 years ago

i think of a number, multiply it by 2 subract 6 and then divide by 4. If the answer is 8 what is the original number

ivanzaharov [21]

Answer:

19

Step-by-step explanation:

8 x 4 = 32

32 + 6 = 38

38 / 2 = 19

6 0

2 years ago

The rationalizing factor of 1/√13 is

SashulF [63]

Answer:

Exact Form: √13/13

Decimal Form: 0.27735009…

Step-by-step explanation:

7 0

2 years ago

1. -2x(x+3)-(x+1)(x-2) =

Simora [160]

Answer:

$-3x^2 -7x + 2$

Step-by-step explanation:

Given

$-2x(x + 3) - (x+1)(x - 2)$

Required

Solve

Open brackets

$-2x^2 -6x - (x^2-2x + x - 2)$

$-2x^2 -6x - x^2-2x + x + 2$

Collect like terms

$- x^2-2x^2 -6x -2x + x + 2$

$-3x^2 -7x + 2$

5 0

2 years ago