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3 years ago

Simplify the expression

Mathematics

1 answer:

Natalija [7]3 years ago

3 0

Step 1 :

(23 x 2 - 5) • x 3

Step 2 :

Trying to factor as a Difference of Squares :

Factoring: 8 x 2-5

Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)

Proof : (A+B) • (A-B) =

A2 - AB + BA - B2 =

A2 - AB + AB - B2 =

A2 - B2

Answer:

(8 x 2 - 5) • x 3

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Can someone answer this question please WBA’s wee it correctly if it’s correct I will mark you brainliest

oksano4ka [1.4K]

Answer:

$\frac{1}{6}*\frac{4}{13}$

Step-by-step explanation:

A 6 sided die has 6 outcomes.

Your sister picks from a 13 - slice plate meaning the fact that there are 13 outcomes.

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You need to mutiply both displayed values to solve this problem.

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3 years ago

235 people are at RSM summer camp. There are 35 more boys than girls, and 70 fewer adults than girls. How many people of each gr

makkiz [27]

Answer:

The number of girls are 90 girls

The number of boys are 125 boys

The number of adults are 20 adults

There are 90 girls, 125 boys and 20 adults at the camp

Step-by-step explanation:

The total number of people is given as 235 people

The number of boys = 35 + The number of girls

The number of adults = The number of girls - 70

Let the total number of girls = G

Therefore, we have;

The number of boys = 35 + G

The number of adults = G - 70

The total number of persons = The number of boys + The number of adults + The number of girls

Therefore;

235 = The number of boys + The number of adults + The number of girls

Which gives;

235 = 35 + G + G - 70 + G = 3·G - 35

235 = 3·G - 35

3·G - 35 = 235

3·G = 235 + 35 = 270

G = 270/3 = 90

The number of girls = 90

The number of boys = 35 + The number of girls = 35 + 90 = 125

The number of boys = 125

The number of adults = The number of girls - 70 = 90 - 70 = 20

The number of adults = 20.

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3 years ago

If we know that 5 cups of flour is used to make 20 biscuits, figure out how many biscuits are made with 15 cups of flour

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Answer:

100

Step-by-step explanation:

5×4=20

5×15=100

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3 years ago

The question is about unit circle in screenshot

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The complete sentence for the unit circle is:

When t = 0, AP = 0, so sin t will begin at a value of 0. As t increases from 0 to π/2, sin t increases. Eventually, when t = π/2, OP will be 0, so sin t = AP will be 1.

<h3>How to complete a sentence with concepts from trigonometry</h3>

In this problem we have sentence to be completed by direct observation to the variables seen in a unit circle, a form used to teach trigonometric functions in a graphic manner. Now we proceed to present the complete sentence below:

When t = 0, AP = 0, so sin t will begin at a value of 0. As t increases from 0 to π/2, sin t increases. Eventually, when t = π/2, OP will be 0, so sin t = AP will be 1.

To learn more on trigonometric functions: brainly.com/question/6904750

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4 years ago

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