2 years ago

Multiply these binomials using foil method (b+3)(b-9)

1 answer:

3 0

FOIL stands for first, outer, inner, and last.
So, you multiply the first terms together, the outer terms together, the inner terms together, and then the last terms together.
(b+3)(b-9)
b^2-9b+3b-27 Then simplify
b^2-6b-27

You might be interested in

99 POINTS!!! Find the least common denominator for these two rational expressions b/b^2+2b+1 -6/b^2+7b+6

ki77a [65]

Answer:

49b^2 -36 = (7b -6)(7b +6)

so because there you missed some signs in these wrote choices

hope helped

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Find the volume of the square pyramid and round to the

Brrunno [24]

The answer is to multiply

3 0

2 years ago

Find the value of x to the nearest tenth.

Tju [1.3M]

Answer:

around 4.1

Step-by-step explanation:

Using Pythaogrean theorem we get sqrt 32 or 4sqrt2 for the diagonal of the square.

To get x we can use Pythagorean theorem again to set up an equation,

32 + x^2 = 49

This gives us x = sqrt17, which is approximately 4.1231 or around 4.1

4 0

2 years ago

Read 2 more answers

1 over 4a = 2 over 3. Which of the following equals a in this equation?

dlinn [17]

Answer:

3/8

Step-by-step explanation:

The equation is given as:

$1/4*a=2/3$

We can simply the equation by getting rid of the denominators which is 4a and 3. Therefore we can multiply both sides with 3*4*a:

$(1/4*a)3*4*a=(2/3)*3*4*a$

On the left hand side 4a cancels with 4a and on the right hand side 3 cancels with 3. We are left with:

$3=2*4*a$

∴ After simplying

$a=3/8$

4 0

2 years ago

What is the area of the triangle given below?

vovikov84 [41]

Answer:

70 .formula = 1/2*b*h hope it helps

3 0

2 years ago