Find the percent change form $18 to $45

9514 1404 393

Answer:

  (a)  63.4 degrees

Step-by-step explanation:

Any of the trig relations can be used. Since the picture cuts off the value of the hypotenuse, we choose to use the adjacent and opposite sides.

  Tan = Opposite/Adjacent

  tan(L) = 6/3 = 2

  L = arctan(2)

  ∠L ≈ 63.4°

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Your calculator can do this, too. Be sure the mode is set to "degrees."

Answer:

16

Step-by-step explanation:

Answer:

$31.04

Step-by-step explanation:

Answer:

Step-by-step explanation:

1. 30 degrees (vertical angles)

2. 60 degrees (complementary angles)

3. 150 degrees (supplementary angles and vertical angles)

4. 90 degrees (complementary angles)

Answer:

Step-by-step explanation:

Answer:

H  mean of data for store 1 is greater than mean for store 2

Step-by-step explanation:

mode for store 1 = 3

mode for store 2 = 2

range for store 1 = 6

range for store 2 = 6

mean for store 1 = 3.3125

mean for store 2 = 2.588

median for store 1 = 3

median for store 2 = 2

Answer: 12 tigers

Step-by-step explanation:

Since the ratio of lions to tigers is 1:3, meaning that for every one lions there three tigers and there's 4 lions and for every one lion there 3 tigers so we need to mulitpy 4 by 3

4×3=12 meaning there 12 tigets in the zoo.

Answer:

There are 12 tigers!

Explanation:

Let the tigers be X.

The ratio is 1:3, so it means that 1:3 = 4:X

1 x X = 3 x 4

X = 12

So, there are 12 tigers.

Have a good day!

8 girls are there in Mrs. Sanchez' class.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Based on the given conditions, formulate

2 girls ⇒ 3 boys

X girls ⇒ 12 boys

3X = 12 × 2

⇒ 3X = 24

⇒ X = [tex]\frac{24}{3}[/tex]

⇒ X = 8

Hence, 8 girls are there in Mrs. Sanchez' class.

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Answer:

your answer is angel 6

I hope it's helps you

Answer:

the answers is B, 3,4,5

Step-by-step explanation:

Answer:

Step-by-step explanation:

The area for the sector of a circle is

[tex]A_s=\frac{theta}{360}*\pi r^2[/tex]  where theta is the measure of the central angle. We have some given values to fill in:

Area is 64π and the central angle is 90°, so all we have left to find is the radius. Filling into the equation:

[tex]64\pi =\frac{90}{360}*\pi r^2[/tex]

Let's get that solved for r-squared first:

[tex]\frac{360(64\pi )}{90\pi } =r^2[/tex]

Doing all the math on that gives us:

[tex]256=r^2[/tex]

Take the square root of both sides and get that r = ±16. BUT we know that lengths cannot be negative, so we disregard the -16 and say that the radius is 16 inches.

The equation that describes the point estimate of the population mean is given as follows:

D. X = 5

The point estimate of a population mean is given by the mean of the sample that is used to infer information from the population.

In the context of this problem, the sample mean is given as follows:

X = 5.

As the symbol X represents the mean of the sample, while the symbol u represents the mean of the population.

The point estimate for the population mean in this problem means that the correct option is given by option D, as it has the correct value and the correct symbol, while option B has the correct option but the wrong symbol.

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Answer:

the answer is B- u=5

Step-by-step explanation:

Answer:

B is not correct. rational numbers can be negative

Answer:

b. If there is a linear relationship between the amount of mercury in a lake and the surface area of the lake, the probability of observing a test statistic of 2.086 is 0.05.

( the null is rejected and alternate is accepted)

Step-by-step explanation:

Here the critical value is t≥ t∝/2(n-2) = ± 2.086

The significance level is ∝= 0.05 and  the p- value is also 0.05

Which indicates that there is no correlation between the dependent and the independent variable.

If the p - value is less than 0.05 the null hypothesis is rejected.

There is a 5% chance that the  hypothesis is true.

So the null hypothesis should be rejected.

Given these options

a) if------as 2.086 or more extreme is 0.05

2.086 or 0.05 is the same in this case one cannot be more extreme.

c)  of 2.086 or greater is 0.05.

b). If there is a linear relationship ------.

This is the alternate hypothesis.

0.05 is not greater than 2.086 in the given question

d)  If there is not a linear relationship between the amount of mercury in-----.

This is the claim which is formulated as null  hypothesis.

e) if----  2.086 or more extreme is 0.05.

0.05 is the same as 2.086

At p- value 0.05 we reject the null hypothesis and accept the alternate hypothesis

Answer:

It's exactly normal, because both populations are normally distributed.

Step-by-step explanation:

Khan Academy

Answer:

infinite

Step-by-step explanation:

We need to find the slope of the line passing through the points (6,6) and (6, -7).

The slope of a line can be calculated as the formula as follows :

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

We have,

x₁ = 6, y₁ = 6, x₂ = 6 and y₂ = -7

Put all the values,

[tex]m=\dfrac{-7-6}{6-6}\\\\m=\infty[/tex]

So, the slope of the line is equal to infinite.

Kindly note that the question says 4; maybe the final question was intended to be the probability that he gets exactly 2 of the 4 correct. However. If it is the other way round. This a e procedure used in the solution should also be followed.

Answer:

0.21

Step-by-step explanation:

Number of options = 4

One correct answer per option ; hence, the probability of success, p = 1/4 = 0.25

Using the binomial probability relation :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

x = 2 ; n = 4

p = 0.25 ; 1 - p = 0.75

P(x = 2) = 4C2 * 0.25^2 * 0.75^2

P(x = 2) = 6 * 0.0625 * 0.5625

P(x = 2) = 0.2109375

P(x = 2) = 0.21 (2 decimal places)

Note : if the question was 3, then put, n = 3 instead of 4

Answer:

5 1/6

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

Answer:

The slope is 1/2 because there is a variable beside

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

Answer:

Step-by-step explanation:

According to Angle sum property of triangle,

x + 45° + 85° = 180°

=> x = 180 - 85 - 45

=> x = 180 - 130

=> x = 50

Hence,

The missing angle x is 50° (Ans)

Answer:

45+85+x=180(sum of angle of triangle)

or, 130+x=180

or, x=180-130

x=50

Step-by-step explanation:

here, the sum of angle of triangle is 180

Answer:

answer is in the picture

Answer:

The first one

Step-by-step explanation: the ABC triangle has a 25-degree angle and a 90-degree angle as you can see by the marks. The first triangle has a 25-degree angle and a 90-degree angle as you can see by the marks. The second one does have a 90-degree angle but it's a different shape and has no 25-degree angle. The third one has both angles 25 and 90 but if you look close it's a different shape. The last one does not have a 90-degree angle but it does have a 25-degree angle and it's a different shape.

So it would be the first option.

Answer:

x = 9.4868

Step-by-step explanation:

For this problem we can use the Pythagorean Theorem

Pythagorean theorem = [tex]a^2+b^2=c^2[/tex]

IN THIS CASE C = X

A and B are the side and base lengths of a right triangle.

C is the Hypotenuse side.

[tex]9^2+3^2=c^2[/tex]

Solve...

81 + 9 = [tex]c^2[/tex]

90 =[tex]c^2[/tex]

[tex]\sqrt{90}[/tex] = c

c = 9.4868

Answer:

i would say the answer is J. 35

Step-by-step explanation:

sowwy if i am wrong but if not can have brainliest