Please help me with this math question

Answer:

The constant of proportionality is the ratio between two directly proportional quantities

Step-by-step explanation:

Two quantities are directly proportional when they increase and decrease at the same rate.

Answer:The constant of proportionality is the constant value of the ratio of two proportional quantities x and y, typically the equation is Y=KX.

Step-by-step explanation:

Answer:

8 miles: $26.50

25miles: $77.50

Step-by-step explanation:

Substitute (x) for the number of miles

8 miles: f(x)=3(8)+2.50

=24+2.50

=26.50

25miles: f(x)=3(25)+2.50

=75+2.50

=77.50

Answer:

The value of x is 11

Step-by-step explanation:

Two angles are complementary if the sum of their measures is 90°

Let us use this rule to solve our question

∵ The angle of measure (3x)° and the angle of measure (5x + 2)°

   are complementary angles

→ That means their sum equals 90°

∴ 3x + 5x + 2 = 90

→ Add the like terms in the left side

∵ (3x + 5x) + 2 = 90

∴ 8x + 2 = 90

→ Subtract 2 from both sides to move 2 from the left side to the right side

∵ 8x + 2 - 2 = 90 - 2

∴ 8x = 88

→ Divide both sides by 8 to find x

∵ 8x/8 = 88/8

∴ x = 11

∴ The value of x is 11

Answer: 108? I think haha-

Answer:

39

Step-by-step explanation:

6x6 is 36, and plus 3 it equals 38.

Add one.

39.

Answer:

all of the answers should be in the back

Step-by-step explanation:

Answer:

Me I sent them to you already. emily

English is a West Germanic language first spoken in early medieval England which eventually became the leading language of international discourse in today's world.

Answer:

D.83.8 ounces

Step-by-step explanation:

The z score for 65th percentile = 0.385

Mean weight of 83 ounces with a standard deviation of 2 ounces

The formula for calculating a z-score is z = (x-μ)/σ

where x is the raw score

μ is the population mean

σ is the population standard deviation

x = ??

Hence:

0.385 = (x - 83)/2

Cross Multiply

0.385 × 2 = x - 83

0.77 = x - 83

x = 83 + 0.77

x = 83.77 ounces

Approximately = 83.8 ounces

Answer:

D.83.8 ounces

Step-by-step explanation:

The z score for 65th percentile = 0.385

Mean weight of 83 ounces with a standard deviation of 2 ounces

The formula for calculating a z-score is z = (x-μ)/σ

where x is the raw score

μ is the population mean

σ is the population standard deviation

x = ??

Hence:

0.385 = (x - 83)/2

Cross Multiply

0.385 × 2 = x - 83

0.77 = x - 83

x = 83 + 0.77

x = 83.77 ounces

Approximately = 83.8 ounces

Answer:

Paige mows 1/2 acre per hour

Step-by-step explanation:

1/4=.25

1/2=.5

               .25*2=.50

               .50*2= 1

Answer:

1/4

Step-by-step explanation:

10+10+20=40

10 of those are red cards which makes it 10/40 which is simplified to 1/4.

Answer:

10:30 (simplified- 1:3)

Step-by-step explanation:

there are 10 red cards so the first number would be 10

the other cards are black hearts and blue cards, if you add them together that is 30 cards, therefore, the answer is 10:30

Answer:

c

......................

Step-by-step explanation:

.....................

Answer:

c

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Calculator

Answer:

-7.89 is the answer

mark me the brainlets

Step-by-step explanation:

Answer:

15, 16, and 17.

Step-by-step explanation:

They are consecutive and they add up to 48.

The distance between the two points is of:

[tex]D = \frac{\sqrt{145}}{6}[/tex]

------------------------------

Distance between two points:

[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

------------------------------

[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

[tex]D = \sqrt{(\frac{5}{3} - 3)^2+(1 - \frac{5}{2})^2}[/tex]

[tex]D = \sqrt{(\frac{5}{3} - \frac{9}{3})^2 + (\frac{2}{2} - \frac{5}{2})^2}[/tex]

[tex]D = \sqrt{(-\frac{4}{3})^2 + (-\frac{3}{2})^2}[/tex]

[tex]D = \sqrt{\frac{16}{9} + \frac{9}{4}}[/tex]

[tex]D = \sqrt{\frac{64 + 81}{36}}[/tex]

[tex]D = \sqrt{\frac{145}{36}}[/tex]

[tex]D = \frac{\sqrt{145}}{6}[/tex]

A similar problem is given at https://brainly.com/question/14849255

Answer:

The answer is \/145/6 (The answer above)

Step-by-step explanation:

I took the Test.

Answer:

So since QRS is ~ another triangle, and they are not exactly similar, I assume that the problem wants you to compare QRS with another angle. QRS is closely congruent to UVW (assuming that you are comparing triangles not angles).

Step-by-step explanation:

All triangles have an angle total of 180 degrees. If you add those two angles together, they have the same sum, and the third anglecan be found by subtracting the total from 180. For example, 95+36 = 131. 180-131=49, which is the third angle for triangle QRS. You can do the same for UVW.

It is important to compare them in order. For instance, Triangle QRS would not be congruent to WVU since they are not in the same order. To compare them in the correct order, compare the angles. Q is about equal to U. R is about equal to V. S is about equal to W since they both have missing angles. Therefore, you can state that triangle QRS is about equal to UVW.

9514 1404 393

Answer:

  make use of the ways similarity can be shown

Step-by-step explanation:

Similarity of triangles can be shown two (2) ways:

__

In a worksheet like this, you may see several kinds of problems. The keys will be ...

__

When two angles are given, as here, at least one of them in one triangle must match one in the other triangle.

Here, neither of the measures 35 and 96 matches either of the measures 36 and 95. These triangles cannot be similar.

__

Further discussion on working these problems

If one of the numbers does match, then you need to find the third angle to see if it matches the remaining angle. If two numbers match, the triangles are similar by AA.

Even if you find all three angles match, you need to carefully check any similarity statement to make sure it lists the matching angles in the same order.

For example, suppose both sets of angles in these triangles were 94 and 37. ∆QRS lists these in the order 94° angle, 37° angle. Then the similarity statement would have to list the other triangle's vertices in the same order: ∆UVW. A typical problem might claim similarity to ∆VUW, just to see if you're paying attention to detail. That claim would be false.

__

For comparing side lengths, it can work well to compare them smallest-to-largest, or in some other order you find easy to remember.

Answer:150

Step-by-step explanation:50 + 100=150 150 - 300=150

Answer:

0

Step-by-step explanation:

100+50=150

150-150=0

0×2=0

Answer:

1

Step-by-step explanation:

5/7 *14/10 = 14/7 * 5/10 = 2 * 1/2 =1

Hope I understood the question correctly.

Answer:

[tex]W=22652.98ft-lb[/tex]

Step-by-step explanation:

We are given that

Height of tank=6feet

Diameter of tank=8 feet

Radius of cone,r=d/2=8/2=4 feet

Let  a layer of thickness dy at distance yr from the bottom at origin

y=6 feet

Using similar triangle property

[tex]\frac{r}{y}=\frac{4}{6}=\frac{2}{3}[/tex]

[tex]r=\frac{2}{3}y[/tex]

Weight of water=62.4 pounds per cubic foot

Now,

Weight of layer=[tex]62.4\times \pi r^2 h=62.4(\frac{4}{9}\pi y^2 dy[/tex]

Now, work done to fill the tank from a depth of 4 feet  to a depth of  6 feet is given by

[tex]W=\int_{a}^{b}62.4\times \frac{4}{9}\pi y^2(y) dy=\int_{4}^{6}62.4\times \frac{4}{9}\pi y^3 dy[/tex]

[tex]W=\frac{62.4\times 4\pi}{9}[\frac{y^4}{4}]^{6}_{4}[/tex]

[tex]W=\frac{249.6\pi}{36}(6^4-4^4)[/tex]

[tex]W=22652.98ft-lb[/tex]

Answer:

W-10

Step-by-step explanation:

if Richard is W years old then subtract 10 from W

Answer:

W-10

Step-by-step explanation:

Subtract his 10 from his current age

Is it a computer keyboard?

Step-by-step explanation:

Im sorry but I found it more easy writing it on a paper!

Answer:

the first three are all functions

Step-by-step explanation:

A WAY easier way to know if it is a function is to see if there are two of the same x-intercept If there is, then it is NOT a function.

Answer:

7

Step-by-step explanation:

3×2

6+1

7

You multiple it by 2 since it is 1/2 and not a whole piece

Answer:

7

Step-by-step explanation:

3 1/2 divided by 2 is 7

Answer:

12x+5y < 180

Step-by-step explanation:

12 (adults) + 5 (kids) < needs to be less than 180 dollars

Answer:

7.8125 grams

Step-by-step explanation:

As per the food label on the box of cookies, there are 16 servings in each box and each serving contains 4 cookies.

Therefore, each box of cookies contains (16 × 4) = 64 cookies.

If a box of cookies weighs  kg i.e. 500 gram, then the weight of each cookies will be  grams. (Answer)

Answer:

a

[tex]\mu  =  127[/tex]

b

[tex]\sigma  =  9.76[/tex]  

c

[tex]z-score  =  3.18 [/tex]

d

Yes, 158 players out of 508 is an unusual number of men born in the first 3 months of the year because the z score of 158  is  greater than  3( Note :the probability of  z-score = 3 is  97%)

e

The correct option is  option 3

Step-by-step explanation:

From the question we are told that

   The population proportion is  p =  0.25

   The sample size is  n =  508

Generally the mean is  mathematically represented as  

     [tex]\mu  =  np[/tex]

=>   [tex]\mu  =  508 * 0.25[/tex]

=>   [tex]\mu  =  127[/tex]

Generally the standard deviation is mathematically represented as

     [tex]\sigma  =  \sqrt{ np (1-p)}[/tex]

=>   [tex]\sigma  =  \sqrt{ 508 * 0.25 (1-0.25)}[/tex]    

=>    [tex]\sigma  =  9.76[/tex]  

Generally the z-score of  158 is mathematically represented as

    [tex]z-score  =  \frac{158 - 127}{9.76}[/tex]

=>  [tex]z-score  =  \frac{158 - 127}{9.76}[/tex]

=>  [tex]z-score  =  3.18 [/tex]

Yes, 158 players out of 508 is an unusual number of men born in the first 3 months of the year because the z score of 158  is  greater than  3( Note :the probability of  z-score = 3 is  97%)

What this means is that the almost the whole  professional hockey league player are born in the first month which is unusual

Step-by-step explanation:

Hey there!

Given;

[tex]16 {x}^{2} - 9 = 0[/tex]

[tex]16 {x}^{2} = 9[/tex]

[tex] {x}^{2} = ± \frac{9}{16} [/tex]

[tex]x = ± \sqrt{ \frac{9}{16} } [/tex]

[tex]x =± \sqrt{ \frac{ {3}^{2} }{ {4}^{2} } } [/tex]

[tex]x = ± \frac{3}{4} [/tex]

Therefore, X= ±3/4.

Hope it helps..

Answer: D . Raw materials were shipped from Georgia, manufactured goods were shipped from Britain, and Britain controlled which raw materials wore produced

Step-by-step explanation:

In the colonial era of the United States, the British who were in charge then engaged in an Economic policy called Mercantilism. This was a system where they limited imports into Britain but encouraged exports from Britain so that they would maintain a favorable balance of trade.

A key part of this system was having colonies that goods could be exported to and that raw materials could be acquired from at a cheap rate.

Southern colonies like Georgia fulfilled this mandate more than the rest as they would ship raw materials to Britain and buy manufactured goods from them with Britain controlling which raw materials Georgians produced.

Answer:

True the answer is D #16

Step-by-step explanation:

good luck