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3 years ago

Help asap! ill give the best to person who explains it clearly

Mathematics

1 answer:

Phantasy [73]3 years ago

6 0

Answer:

The answer is D.

Step-by-step explanation:

First, you have to find the area of circle using the formula :

A = π × r²

A = π × 3²

A = 9π

Given that PHU is an equilateral triangle so all sides have a degree of 60°. Next, you have to find the area of minor sector of P and U by using the formula :

A = (θ/360) × π × r²

A = (60/360) × π × 3²

A = 1.5π

Lastly, you have to subtract the area of sector from the area of circle in order to find the area of shaded region :

A = (9π × 2) - (1.5π × 2)

A = 18π - 3π

A = 15π

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Jennifer spray paint 5 picture frames in 12 minutes. About how long will it take her to paint 98 picture frames

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Answer:

235.2

Step-by-step explanation:

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3 years ago

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An isosceles triangle has a perimeter (9y-15)cm. what is the length of the remaining equal sides of it's third side is (3y-7) cm

ozzi

The length of each of the equal sides is become x = (3y-4) cm

According to the statement

we have given that the perimeter of the isosceles triangle and length of third side. and we have to find the length of same side of triangle.

So,

An isosceles triangle is a triangle that has two sides of equal length.

Let the equal sides of isosceles triangle be x cm each.

We know that the

Sum of sides of a triangle = perimeter

x+x+(3y-7) = 9y-15

2x = 9y-3y-15+7

After solving the equation it become

2x= 6y-8

x=(6y-8)/2

Now the length of equal sides is x=3y-4

So, The length of each of the equal sides is become x = (3y-4) cm

Learn more about isosceles triangle here

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2 years ago

What is StartFraction one-half EndFraction x is less than or equal to 18.x ≤ 18

Eduardwww [97]

Answer:

$x\leq 36$

The solution for $x$ is all real numbers less that or equal to 36.

Step-by-step explanation:

Given expression:

$\frac{1}{2}x\leq18$

To find the solution for $x$

Solution:

In order to solve for $x$ , we will make sure to isolate the unknown variable $x$ on left side alone by doing math operations on both sides of the inequality.

We have:

$\frac{1}{2}x\leq18$

Multiplying both sides by 2.

$2.\frac{1}{2}x\leq18\times 2$

The 2 on left side will cancel each other leaving $x$ alone.

Thus, we have:

$x\leq 36$

Thus, solution for $x$ is all real numbers less that or equal to 36.

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3 years ago

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Help me please ASAP!

Goryan [66]

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4 years ago

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Sugar canes have lengths X that are normally distributed with mean 365.45 cm and standard deviation 4.9 cm what is the probabili

Gemiola [76]

Answer:

The probability of the length of a randomly selected Cane being between 360 and 370 cm P(360 ≤X≤370) = 0.6851

Step-by-step explanation:

step(i):-

Let 'X' be the random Normal variable

mean of the Population = 365.45

Standard deviation of the population = 4.9 cm

Let X₁ = 360

$Z= \frac{x-mean}{S.D}= \frac{360-365.45}{4.9}$

Z₁ = -1.112

Let X₂ = 370

$Z= \frac{x-mean}{S.D}= \frac{370-365.45}{4.9}$

Z₂ = 0.911

Step(ii):-

The probability of the length of a randomly selected Cane being between 360 and 370 cm

P(x₁≤x≤x₂) = P(z₁≤Z≤z₂)

P(360 ≤X≤370) = P(-1.11≤Z≤0.911)

= P(Z≤0.911)-P(Z≤-1.11)

= 0.5 +A(0.911) - (0.5-A(1.11)

= 0.5 +A(0.911) - 0.5+A(1.11)

= A(0.911) + A(1.11)

= 0.3186 + 0.3665

= 0.6851

The probability of the length of a randomly selected Cane being between 360 and 370 cm P(360 ≤X≤370) = 0.6851

5 0

3 years ago