Help meeeeeeeee PLEASE

Step-by-step explanation:

If 5 was the radius, do 3.14 (5)^2 same thing as= 3.14 times 25

Which equals 78.5 (I rounded it also)

Let me know if it was correct!

Answer:

Step-by-step explanation:

Angle 1=24°

Angle 2=90°

Angle 3=90-24= 66°

Answer:

b= -49

Step-by-step explanation:

Well first isolate the number with the variable by performing inverse operations

1/7b= -7

now multiply by 7 on each side to isolate the variable.

b= -49

B is negative 49

Answer:

x = 5

Step-by-step explanation:

im too tired to explain just trust me

(5) + 2 = 7

2(5) + 3 = 13

13 * 7 = 91

Step-by-step explanation:

Given area = 91m²

length = 2x+3 m

breadth = x +2 m

we know,

Area = length x breadth

91 = (2x+3) x (x+2)

91 = 2x² + 4x + 3x + 6

91 = 2x² + 7x + 6

2x² + 7x - 85 = 0

(2x+17)(x−5)=0

2x+17=0 or x−5=0

x=−17/2 or x=5

Answer:

Step-by-step explanation:

Step-by-step explanation:

2 is the answer because it's in the middle

Answer:

answer is b.

Step-by-step explanation: use formula

V=1/3(hπr²)

so using this formula gives us 1275.62897 but rounded off gives us 1,275.63 ft3

ok the diameter is 21 3/4ft i converted it to a decimal, 21.75ft so to get the radius i 21.75ft/2= 10.875ft

ok to continue

V=1/3(hπr²)

V=1/3(3.14*10.875ft)h

V=1/3(118.265625ft)

V=1/3(118.265625 ft)10.3ft

V=1275.62897 which rounded=1,275.63 ft3

Answer: The shape cannot be determined since we don’t know the shape of either population distribution.

Step-by-step explanation:

9514 1404 393

Answer:

  C)  4

Step-by-step explanation:

We observe that the top segments are in the same 3:4 ratio as the bottom segments. This means they are the same lengths: 3x = 12, 4x = 16. Either of these equations tells us x = 4.

_____

Additional comment

In case you aren't convinced, you can solve this using the secant rule for segments and circles: the product of the lengths to the circle intercepts are the same for both secants.

  12(12 +16) = 3x(3x +4x)

  336 = 21x² . . . . . simplify

  16 = x² . . . . . . . . divide by 21

  4 = x . . . . . . . . . .positive square root

Answer:

6 units

Step-by-step explanation:

they are six units apart just count the amount of units they are from each other or since they are in the same quadrant and y-axis just subtract the 10 from the 4

Answer:

6 units is the answer.

Step-by-step explanation:

points are (10,-5) and (4,-5)

Pythagorean theorem can be written as,

[tex]d=\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\\\d=\sqrt{(4-10)^2 + (-5-(-5))^2}\\\\d=\sqrt{(-6\\)^2+(0)^2} \\\\d=\sqrt{36} \\\\d=6} \\\\[/tex]

∴ d = 6 units

Answer:

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

a^2+b^2=c^2 is for right triangle so

6^2+8^2=10^2

36+64=100

100=100

so it's a right triangle

Answer:

the answer is 3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

4/3 x 5/8 is correct

Step-by-step explanation:

Answer: C 7/10 * 5/8

Step-by-step explanation:

4/3 * 5/8 = 20 / 24 = 5 / 6

3/2 * 5/8 = 15 / 16

7/10 * 5/8 = 35/80 = 7 / 16

9/7 * 5/8 = 45 / 56

5/8  = 10/16

7/16 < 10/16

7/16 < 5/8

Answer:

2031

Step-by-step explanation:

3.63=0.046x+2.664

0.966=0.046x

21=x

2010+21=2031

Answer:

5x^2 + 7x

option C is your answer

Answer:

b

Step-by-step explanation:

when an reflected across the y axis only the x value changes and it changes negatively

Answer:

12 ft

Step-by-step explanation:

From the question given above, the following data were obtained:

Angle θ = 41.5°

Opposite = 8 ft

Length of handrail =?

We can obtain the length of the handrail by calculating the Hypothenus. This can be obtained as follow:

Angle θ = 41.5°

Opposite = 8 ft

Hypothenus =?

Sine θ = Opposite /Hypothenus

Sine 41.5 = 8 / Hypothenus

0.6626 = 8 / Hypothenus

Cross multiply

0.6626 × Hypothenus = 8

Divide both side by 0.6626

Hypothenus = 8 / 0.6626

Hypothenus = 12 ft

Thus, the Lenght of the handrail is 12 ft

Answer:

6

Step-by-step explanation:

I think

Answer:

pH = 6.1

Step-by-step explanation:

pH = -log[H]

pH = -log[8.1 x 10^-7]

pH ≈ 6.09

Therefore, option a, 6.1, is closest to this value and is the correct answer.

Answer:

any number from 6 and above

Step-by-step explanation:

B two quadratic by addition

C a linear and quadratic by addition

D two linear by multiplication

Answer:

22 minutes to 7

Step-by-step explanation:

short hand is near 7

Answer: 22 minutes to 7

Answer:

0.9772 = 97.72% probability that the grade of a randomly selected students score is more than 60.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The average grade for an exam is 74, and the standard deviation is 7.

This means that [tex]\mu = 74, \sigma = 7[/tex]

What is the probability that the grade of a randomly selected students score is more than 60?

This is 1 subtracted by the pvalue of Z when X = 60. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{60 - 74}{7}[/tex]

[tex]Z = -2[/tex]

[tex]Z = -2[/tex] has a pvalue of 0.0228

1 - 0.0228 = 0.9772

0.9772 = 97.72% probability that the grade of a randomly selected students score is more than 60.

Answer:

C (3 inches by 6 inches)

Step-by-step explanation:

Answer:

here is only one line of symmetry

Answer:

There are 3 lines of symmetry.

Step-by-step explanation:

There is one in the middle going vertically and horizontally, and there is one going diagonal.

Hope this helped!!

Answer:

9 units is the answer.

Step-by-step explanation:

points are (-10,-4) and (-10,5)

Pythagorean theorem can be written as,

[tex]d=\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\\\d=\sqrt{(-10-(-10))^2 + (5-(-4))^2}\\\\d=\sqrt{(0)^2+(9)^2} \\\\d=\sqrt{81} \\\\d=9[/tex]

∴ d = 9 units