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4 years ago

Find the sum precal I really need help I don’t know how to do it

Mathematics

1 answer:

Evgen [1.6K]4 years ago

7 0

Answer:

Step-by-step explanation:

Plug in

0 for j to get 1

1 for j to get -2

2 for j to get 4

3 for j to get -8

4 for j to get 16

Then add 1 - 2 + 4 - 8 + 16 = 11

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Larry claims that (14 + 12) × (8 + 12) and (14 × 12) + (8 × 12) are equivalent because they have the same digits and the same op

FromTheMoon [43]

Answer:

$(14+12)\times (8+12) > (14\times 12)+(8\times 12)$

Step-by-step explanation:

First let us evaluate the value of both the expressions.

$(14+12)\times (8+12) = 26\times 20 = 520$

$(14\times 12)+(8\times 12) = 168 + 96 = 264$

a) Hence, Larry's claim that both the expressions are equivalent is wrong.

The evaluation of the expressions have been shown above. The second expression was obtained by swapping the addition and multiplication order and that created the difference.

b) Clearly,

520 > 264

Therefore,

$(14+12)\times (8+12) > (14\times 12)+(8\times 12)$

$(14+12)\times (8+12)$ is greater by the expression $(14\times 12)+(8\times 12)$ by a value of 520 - 264 = 256.

7 0

3 years ago

A 13-foot ladder is leaning on a tree. The bottom of the ladder is on the ground at a distance of 55 feet from the base of the t

kompoz [17]

Answer:

Step-by-step explanation:

42 feet

8 0

3 years ago

How much wrapping is needed for a package that is shaped like a cube 16 in. on each edge?

PtichkaEL [24]

Answer:

1536 in^2

Step-by-step explanation:

This is basically asking for the surface area so knowing that is a cube all the sides are equal so one side would be 16(16) which is 256 in ^2. The knowing that there is 6 sides you would multiply it by 6 which is 256(6)= 1536^2

3 0

3 years ago

When rolling a fair 6-sided die, what is the probability of a 2 or 4 being rolled?

serg [7]

There is only one 2 and one 4 on a dice

So it’s a 2 out of six chance

Which can be simplified to 1/3

8 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%7B4%20a%7D%5E%7B2%7D%20%2B%20%20%7B12a%7D%5E%7B2%7D%20%7D%20" id="TexFormula1

PolarNik [594]

Answer:

The answer is 4a