HELPPPPPPPPPPPPPP
Choose the amount of money that is equal to 9 dimes.
A.3 quarters 3 nickels
B.4 quarters
C.2 quarters 3 dimes
D.8 dimes 3 nickels

Answer:

6 of his class are girls

Step-by-step explanation:

24/4=6

Answer:

A.

Step-by-step explanation:

I'm pretty sure that's right.

Answer:

i believe number 4 is the answer

Answer:

108 ft²

Step-by-step explanation:

Square: 9^2 = 81

Triangle: 1/2(9)(6) = 27

Total = 81 + 27 = 108

It's 108 ft I'm p sure

Answer:

17 feet 10 inches

Step-by-step explanation:

26 feet 10 inches is cut from a wire that is 44 feet 8 inches

Therefore the length of wire that is left can be calculated as follows

44 feet 8 inches - 26 feet 10 inches

= 17 feet 10 inches

answer:

we reject null and conclude that this manufacturers claim is false

Step-by-step explanation:

p = 30% = 0.30

p^ = 93/150 = 0.62

we state the hypothesis

H0: p = 0.30

h1: p not equal to 0.30

we find the z test stattistics

[tex]z=\frac{p^--p}{\sqrt{\frac{p(1-p)}{n} } }[/tex]

[tex]z=\frac{0.62-0.30}{\sqrt{\frac{0.30(1-0.30)}{150} } }[/tex]

[tex]z=\frac{0.32}{\sqrt{\frac{0.30*0.70}{150} } }[/tex]

[tex]z=\frac{0.32}{0.03741}[/tex]

z = 8.5538

at alpha = 0.05

z-critical = Z₀.₀₅/₂ = Z₀.₀₂₅

= 1.96

we compare z critical with the test statistic

z statistic > z critical so we have to reject H₀ and conclude that the manufacturers claim is not valid at 0.05 level of significance.

Answer:

In 5 hours, he will go 3 ¾ kilometers far.

Step-by-step explanation:

Answer:

39.2°

Step-by-step explanation:

Vertical angles are always congruent.

Answer:

The angle is 140.8

Step-by-step explanation:

A straight angle is equal to 180°

So 180° minus 39.2° equals the answer

Answer:

The best estimate for the proportion of ticket buyers that make purchases using their smart phones is 0.45.

Step-by-step explanation:

We take the estimate from the website, and expand for all buyers, to find the proportion that use their smartphones.

400 users of the website were randomly sampled from the existing database and 180 were found to have used their smart phones.

180/400 = 0.45

The best estimate for the proportion of ticket buyers that make purchases using their smart phones is 0.45.

Answer: y = (16/3)*x - 13.33

Step-by-step explanation:

A linear relationship can be written as:

y = a*x + b

where a is the slope and b is the y-axis intercept.

For a line that passes through the points (x1, y1) and (x2, y2), the slope can be written as:

a = (y2 - y1)/(x2 - x1).

Then for our particular case, we know that the line passes through the points (4, 8) and (1, -8)

Then the slope for this line will be:

a = (8 - (-8))/(4 - 1) = 16/3

Then our line is something like:

y = (16/3)*x + b

We need to find the value of the y-intercept b.

We know that this line passes through the points (4, 8) and (1, -8)

Then we can just replace the values of one of these points in our linear equation, for example, if we se the first one we get:

x = 4 and y = 8

replacing that in our equation we get:

8 = (16/3)*4 + b

8 - (16/3)*4 = b

-13.33 = b

Then the equation for our line is:

y = (16/3)*x - 13.33

Answer:

100

Step-by-step explanation:

5x5=25

25x4=100

Answer:

100

Step-by-step explanation:

5x5=25

25x4=100

Answer:

The answer is "[tex]\bold{r=9, \lambda=\frac{1}{2}\ and \ \ \text{exponential, 9 steps}}[/tex]"

Step-by-step explanation:

In point a:

We are aware of the random gamma variable X:

[tex]\to \mathbb{E} =\frac{r}{\lambda}\\\\\to Std(X) =\frac{\sqrt{r}}{\lambda}\\\\[/tex]

It is given:

[tex]\to \mathbb{E} = 18 \\\\\to std(X)=6[/tex]

[tex]\to 18=\frac{r}{\lambda}\\\\ \to 6=\frac{\sqrt{r}}{\lambda}\\\\[/tex]

Substituting the value:

[tex]\to \frac{\sqrt{r}}{6}=\frac{r}{18}\\\\\to r=9\\\\\to \lambda=\frac{1}{2}\\\\[/tex]

In point b:

When building the Erlang/Gammas distribution, these could reasonably be assumed to become an exponential distribution only with \lambda = 1/2 parameter with one step but to be r = 9 for one step.

Answer:

the work done in pulling the bucket to the top of the well is 2125 ft-lb

Step-by-step explanation:

Given that;

Weight of the bucket is 3 lb

weight of water which can be filled in the bucket is 42 lb

Total weight of bucket and water = 3 + 42 = 45 lb

distance, the bucket filled with water is to be pulled 50 ft

now, let at any time t be the bucket at distance x ft from the bottom of the well

then, t = x/2 × S

where S is the rate at which water is leaking from the bucket

so at this time t, the amount pf water which leaked from the bucket is;

⇒ x ft / 2.5 ft/s × 0.25 lb/s

= 0.25 lb.s⁻¹ / 2.5 ft.s⁻¹ × x ft

= 0.1 lb/ft × x ft

= 0.1x lb

now, as x represent the distance that the bucket has been raised, we the force F applied to the bucket x to be;

F = ( 45 - 0.1x ) lb

so, the required worked by Riemann sum as;

[tex]\lim_{n \to \infty}[/tex]ⁿ∑_[tex]_{i=1}[/tex] ( 45 - 0.1x[tex]_i[/tex]* ) Δx

so, the work done, pulling the bucket up will be;

[tex]\lim_{n \to \infty}[/tex]ⁿ∑_[tex]_{i=1}[/tex] ( 45 - 0.1x[tex]_i[/tex]* ) Δx  =  [tex]\int\limits^{50}_0 {(45-0.1x)} \, dx[/tex]

= [ 45x - 0.1[tex]\frac{x^2}2}[/tex] ]⁵⁰₀

= 45 × 50 - 0.1/2 × (50)²

= 2250 - 125

= 2125 ft-lb

Therefore, the work done in pulling the bucket to the top of the well is 2125 ft-lb

Answer:

See Explanation

Step-by-step explanation:

Given

See attachment

Solving (1): What is asked

The requirement of the question is to determine the difference between the amount of sugar used between yesterday and today

Solving (2): The given facts

[tex]Yesterday = \frac{9}{10}kg[/tex]

[tex]Today = \frac{3}{5}kg[/tex]

Solving (3): Operation to be used

We use subtraction operation

Solving (4): The mathematical sentence

[tex]D = Yesterday - Today[/tex]

[tex]D = \frac{9}{10}kg - \frac{3}{5}kg[/tex]

D represents the difference

Solving (5): The solution

[tex]D = \frac{9}{10}kg - \frac{3}{5}kg[/tex]

Take LCM

[tex]D = \frac{9 - 6}{10}kg[/tex]

[tex]D = \frac{3}{10}kg[/tex]

Answer:

Subtract the minimum data value from the maximum data value to find the data range. In this case, the data range is 62−3=59 62 - 3 = 59 .

Step-by-step explanation:

Answer:

The answer is 59

Step-by-step explanation:

Answer:

4x^2 + 8x - 20

Step-by-step explanation:

Amir subtracted a quantity

Let quantity = y

... from the polynomial 3x^2+8x−16

y - (3x^2+8x−16)

and produced the expression x^2−4

= x^2−4

What quantity did Amir subtract?

y - (3x^2+8x−16) = x^2−4

Solving for y;

y =  x^2−4 + (3x^2+8x−16)

y = x^2−4 + 3x^2+8x−16

y = 4x^2 + 8x - 20

Quantity subtracted by Amit is [tex]\boldsymbol{2x^2+8x-12}[/tex]

In arithmetic, an expression is a sentence that includes at least two integers (known or unknown) as well as at least [tex]1[/tex] operation.

A quantity is subtracted from the polynomial [tex]3x^2+8x-16[/tex] and the result obtain is the expression [tex]x^2-4[/tex]

Quantity subtracted [tex]=(3x^2+8x-16)-(x^2-4)[/tex]

                                 [tex]=3x^2+8x-16-x^2+4\\=2x^2+8x-12[/tex]

So, quantity subtracted is [tex]\boldsymbol{2x^2+8x-12}[/tex]

Find out more information about expression here:

https://brainly.com/question/13947055?referrer=searchResults

Answer:

32-Alecia and 8-sister

Step-by-step explanation:

4x+x=40

5x=40

x=8

Answer:

0.9789 = 97.89% probability that fewer than three of these mortgages are delinquent.

Step-by-step explanation:

For each mortgage, there are only two possible outcomes. Either it is delinquent, or it is not. The probability of a mortgage being delinquent is independent of any other mortgage. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

8% of U.S. mortgages were delinquent last year.

This means that [tex]p = 0.08[/tex]

A random sample of eight mortgages was selected.

This means that [tex]n = 8[/tex]

What is the probability that fewer than three of these mortgages are delinquent?

This is:

[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)[/tex]

In which

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{8,0}.(0.08)^{0}.(0.92)^{8} = 0.5132[/tex]

[tex]P(X = 1) = C_{8,1}.(0.08)^{1}.(0.92)^{7} = 0.3570[/tex]

[tex]P(X = 2) = C_{8,2}.(0.08)^{2}.(0.92)^{6} = 0.1087[/tex]

[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.5132 + 0.3570 + 0.1087 = 0.9789[/tex]

0.9789 = 97.89% probability that fewer than three of these mortgages are delinquent.

Answer is 103

- took the test on edge!

- Have a good day :)

Answer:

Step 2

Step-by-step explanation:

Step 2 b/c [tex]4\frac{1}{8}[/tex] = [tex]\frac{33}{8}[/tex]

Answer:

D

Step-by-step explanation:

Answer:

6 numbers greater than 6, plus 1,3 and 5- so nine total.

9/12, simplified 3/4

Answer:

x = 20.1 degrees

Step-by-step explanation:

Use the inverse sine function to calculate the angle measure. While the sine function uses the opposite and hypotenuse's angle measures, the inverse sine uses the side lengths of the opposite and hypotenuse.

Using something like desmos, plug in arcsin(11/32) and make sure you have selected degrees instead of radians in the setting to get the correct output.

Note that Inverse sine , cosine, and tangent can be written like arcsin, arccos, arctan or  sin^-1,  cos^-1, tan^-1.

x= 20.1

Answer:

2

Step-by-step explanation:

Answer:

81986088

its even

Step-by-step explanation:

just look it up on your search bar? Im confused on what your asking. Sorry if  I answered wrong

Answer:

y=2x-3

Step-by-step explanation:

First we find the y-intercept of this graph whic in this case is -3. Then we plot two pints on the graph and caculate the rise over run which is 2/1=2. Finally, we get the equation- y=2x-3.

To evaluate the expressions, you substitute -9 for x and 3 for y into the expressions

(4y)^2 - (2x)

= (4(3))^2 - (2(-9))

= (12)^2 - (-18)

= 144 + 18

= 162

4y^2 - 2x^2

= 4(3)^2 - 2(-9)^2

= 4(9) - 2(81)

= 36 - 162 = -126

Answer: 100,000 + 80,000 + 6,000 + 200 + 80 + 2

Step-by-step explanation: Expanded form is writing out the number like I did tbh..hard to explain you just gonna practice but here ya go :)) !

Answer:

100,000+80,000+6,000+200+80+2

Step-by-step explanation:

You see it

If you know the place values,Then you can do expanded form.