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3 years ago

Find the value of X. Round the lengths of segments to the nearest 10th in the measure of angles to the nearest degree

Mathematics

1 answer:

Blizzard [7]3 years ago

7 0

SOH CAH TOA tells you the sine ratio is
Sin = Opposite/Hypotenuse
sin(x) = 12.5/15
Then the angle x can be found using the inverse function.
x = arcsin(12.5/15) ≈ 56°

The appropriate choice is
b) 56

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5(x-3)+2x+21=3(x+4)+2x

nekit [7.7K]

Answer:

x = 3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

5(x−3)+2x+21=3(x+4)+2x

(5)(x)+(5)(−3)+2x+21=(3)(x)+(3)(4)+2x(Distribute)

5x+−15+2x+21=3x+12+2x

(5x+2x)+(−15+21)=(3x+2x)+(12)(Combine Like Terms)

7x+6=5x+12

Step 2: Subtract 5x from both sides.

7x+6−5x=5x+12−5x

2x+6=12

Step 3: Subtract 6 from both sides.

2x+6−6=12−6

2x=6

Step 4: Divide both sides by 2.

Hope this helps!

3 0

3 years ago

Given P(X) = 0.5, P(Y) = 0.4, and P(Y|X) = 0.3, what are P(X and Y) and P(X or Y)?

scZoUnD [109]

Use the definition of conditional probability to find the "and" probability:

$P(Y\mid X)=\dfrac{P(X\cap Y)}{P(X)}\implies P(X\cap Y)=0.3\times0.5=0.15$

Use the inclusion/exclusion principle to find the "or" probability:

$P(X\cup Y)=P(X)+P(Y)-P(X\cap Y)=0.5+0.4-0.15=0.75$

6 0

3 years ago

Meredith picked 4 times as many green peppers as red peppers. if she picked a total of 20 peppers, how many green peppers did sh

IRISSAK [1]

She picked 16 green peppers.

4*5= 20
4*4= 16

4 0

3 years ago

Read 2 more answers

Solve for X in the equation<br><br> x^2 -4x -9 =29

NemiM [27]

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer:

x = 8.48074

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

7 0

3 years ago

How are you expose to solve 7n-7n=1

eduard

You just subtract normally because they both have the same variable. I hope you find this helpful.

6 0

3 years ago