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nasty-shy [4]
2 years ago
7

What is the product of (b+5)(b-11)

Mathematics
1 answer:
xxTIMURxx [149]2 years ago
3 0

Answer:

b^2 - 6b - 55

Step-by-step explanation:

(b + 5)(b - 11)

Use FOIL

First

Outside

Inside

Last

F:  b * b = b^2

O:  b * -11 = -11b

I:  5 * b = 5b

L:  5 * -11 = -55

b^2 - 11b + 5b - 55

Combine like terms

-11b + 5b = -6b

b^2 - 6b - 55

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dedylja [7]

Answer:

174,862,593

Step-by-step explanation:

I just added them all together

8 0
3 years ago
Read 2 more answers
Suppose that the credit remaining on a phone card (in dollars) is a linear function of the total calling time (in minutes). When
Virty [35]

Answer:

Credit remaining after 21 minutes = $30.4

Step-by-step explanation:

Credit remaining on a phone card is a linear function of the total calling time.

When graphed, let the linear function representing the line is,

y = mx + b

Where 'm' = slope of the line

b = y-intercept

From the graph,

Slope of the line = -0.12

y = -0.12x + b

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Therefore, the linear function is,

f(x) = -0.12x + 32.92

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6 0
3 years ago
How many one-third cubes are needed to fill the gap in the prism shown below?
attashe74 [19]

Answer:

The answer is 16 I've seen this before so I would know. and your welcome

Step-by-step explanation:

8 0
2 years ago
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Find the sum of the first one hundred positive integers. see fig 6.26
nignag [31]
Here's a pattern to consider:
1+100=101
2+99=101
3+98=101
4+97=101
5+96=101
.....
This question relates to the discovery of Gauss, a mathematician. He found out that if you split 100 from 1-50 and 51-100, you could add them from each end to get a sum of 101. As there are 50 sets of addition, then the total is 50×101=5050
So, the sum of the first 100 positive integers is 5050.

Quick note
We can use a formula to find out the sum of an arithmetic series:
s =  \frac{n(n + 1)}{2}
Where s is the sum of the series and n is the number of terms in the series. It works for the above problem.
8 0
3 years ago
It takes 2 tablespoons of peanut
kipiarov [429]

Answer:

16 tablespoons of peanut butter and 24 tablespoons of jelly which is 40 tablespoons all together

Step-by-step explanation:

2*8=16

3*8=24

16+24=40  

5 0
3 years ago
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