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3 years ago

Simplify the expression (-8/15)+(1/15)

Mathematics

1 answer:

Mice21 [21]3 years ago

4 0

If it is fractions then the answer is -7/15. Think of as 8/15 - 1/15 except the answer is a negative number

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For ΔABC, which two relationships are true?

Phoenix [80]

The two correct relationships are:

$cos(\theta)=\frac{AB}{AC} = sin(90-\theta)\\\\sin(\theta)=\frac{BC}{AC} = cos(90-\theta)$

<h3>What is a right-angled triangle?</h3>

The triangle shown is a right-angled triangle

Considering < $(90-\theta)^o$

$cos(90-\theta)=\frac{BC}{AC} \\\\sin(90-\theta)=\frac{AB}{AC}\\\\tan(90-\theta)=\frac{AB}{BC}$

Considering < $\theta$

$cos(\theta)=\frac{AB}{AC} \\\\sin\theta)=\frac{BC}{AC}\\\\tan(\theta)=\frac{BC}{AB}$

Comparing < $\theta$ and < $(90-\theta)^o$ , the true statements are:

$cos(\theta)=\frac{AB}{AC} = sin(90-\theta)\\\\sin(\theta)=\frac{BC}{AC} = cos(90-\theta)$

Learn more on trigonometry here: brainly.com/question/20519838

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2 years ago

A grocery store advertises that 15 cups of granola cost $6.75. Which are equivalent prices

fgiga [73]

which of what are equivilent prices?

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3 years ago

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an oil company drilled several walls.fifty wells, or 25%,produced oil.what was the total number of wells that were drilled

Phantasy [73]

25% is equal to 100/25=1/4

We can substitute this into an equation to get the total number of wells where n can be equal to the total number of wells.

1/4*n=50
n/4=50
n=50*4
n=200

The total number of wells that were drilled was 200.

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3 years ago

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Find the area of the figure shown. Use 3.14 to approximate pi

Nina [5.8K]

Alrighty

we gots 1/4 circle and paralellogram

area circle=pi times radius^2
area paralelogram=base times height

1/4 circle is
radius is 10 so
area part circle is 1/4 times pi times 10^2=100/4pi=25pi=78.5 m²

area paralllogram is
10 times 3 because 3 is height and 10 is base length or 30

30+78.5=108.5 m² is the area

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3 years ago

Please help!!! will mark brainliest!! Hurryyyy

brilliants [131]

Answer:

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Step-by-step explanation:

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3 years ago