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suter [353]
3 years ago
15

Find the product of (2a+3b) and (4a+5b). If a=4 and b=-2, what is the value of product​

Mathematics
2 answers:
ZanzabumX [31]3 years ago
4 0

Answer:

(2 \times 4 + 3 \times  - 2) \times (4 \times 4 + 5 \times  - 2) \\ (8    - 6) \times (16 - 10) \\ 2 \times 6 = 12

<h2>Mark as the brainliest please</h2>

Hoochie [10]3 years ago
4 0

Answer:

12

Step-by-step explanation:

2a+3b=2*4+3*(-2)=8-6=2

4a+5b=4*4+5*(-2)=16-10=6

the product is 2*6=12

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Ninety-five percent of test scores fall between 72 and 85. Assuming the data is normally distributed, what is
fredd [130]

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78.5 i think

Step-by-step explanation:

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2 years ago
If the Federal Reserve sells $60,000 in Treasury bonds to a bank at 6% interest, what is the immediate effect on the money suppl
Aleksandr [31]
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3 0
3 years ago
Read 2 more answers
Can somebody help mee plzzzzzzzz
hammer [34]

Answer:

lines a and b are parallel. The slopes are -1/3

None of the lines are perpendicular to each other.

Step-by-step explanation:

To figure out if any of the lines are parallel or perpendicular to each other, you have to find the slopes of each line. To find the slope look at the graph find the rise over run for all of the lines:

line a: This line goes down one every time it goes over 3, which can be represented by -1/3

line b: This lines goes down one every time it goes over 3, which can also be written as -1/3

line c: This line goes up 5 every time it goes over 2, which makes the slope 5/2

When two lines are parallel, they have the same slope. Line a and line b have the same slope, so they are parallel.

When two lines are perpendicular, their slopes are negative reciprocals of each other. Since none of the slopes are a negative reciprocal of another slope, we have no perpendicular lines.

Hope this helps :)

7 0
3 years ago
Can you explain how a table can be used to find the rate of change
serg [7]

A table will generally give you an output value for each of several input values. To find the average rate of change over some range of inputs, divide the difference between output values by the difference between input values for the corresponding inputs.

For example, consider the table

input .... output

.. 1 ............ 3

.. 3 ........... -5

The average rate of change between these input values is

... (change in output)/(change in input) = (-5 -3)/(3 - 1) = -8/2 = -4.

6 0
3 years ago
A tree is 6 feet 7 inches tall. How tall is it in inches?
matrenka [14]

Answer:

79 inches

Step-by-step explanation:

1 foot equals 12 inches

6 feet = 6*12 = 72 inches

72+7=79

79 inches

6 0
3 years ago
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