Help please mathematics for school

Answer:

the first one should be 23 but I don't know about the other one sorry

Answer:

........

4/12 ...simplify it if you wanna

Answer:

yes

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

The amounts greater than 40 cents can be formed.

After dividing one number by another, the modulo operation yields the remainder or signed remainder of the division.

Given:

According to the situation the equation can be

C = 5x + 11y, where x and y are non negative integers.

Now, We will fix y-values first, because there are fewer indices modulo 5:

y = 0 --> 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55,... 5y

y = 1 --> 11, 16, 21, 26, 31, 36, 41, 46, 51, 56,... 5y + 11

y = 2 --> 22, 27, 32, 37, 42, 47, 52, 57, ...5y + 22

y = 3 --> 33, 38, 43, 48, 53, 58, ...5y + 33

y = 4 --> 44, 49, 54, 59, ...5y + 44

Then, 39 may be verified to be the smallest number that is impossible to obtain.

By examining each index (0, 1,..., 4), we may demonstrate this by observing that for y = 1, 6 is the largest positive integer congruent to 1 mod 5 that cannot be made, 17 is the largest positive number congruent to 2 mod 5, etc.

The largest of these improbable numbers is 39.

We could say that since 40, 41, ..., 44 are all obtainable, then we can induct by adding a multiple of 5 (i.e. if k is possible, so is k+5),

Hence, all amounts greater than 40 cents can be formed.

Learn more about Modulo here:

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Answer:

15 different signs

Step-by-step explanation:

Answer:

A.$0.45

B.$3.51

Answer:

Step-by-step explanation:

A. They will charge forty-five cents per ounce.

B. They will charge  Reid  $3.51 for her bowl.

When we're solving with scale factors, we either divide or multiply.

If the shape becomes larger, we multiply to get the new length.

If the shape becomes smaller, we divide to get the new length.

We're given:

Because the shape becomes larger, we have to multiply the original side length by the scale factor, 6, to get the new side length.

2.5 x 6 = 15

Therefore, the missing side length is 15 units.

15 units

Answer:

6

Step-by-step explanation:

Answer:

\(A=\frac{ab}{2}\) or \(A = a *\sqrt{c^2-a^2} /2\)

Step-by-step explanation:

Depending on the values you take depends on the equation you would use to solve for the area of a right triangle(the first answer accounts for measuring both arms(the sides connected to the 90 degree angle(a and b)), where as the second answer accounts for using the hypotenuse and one of the arms). That means that a 90 degree angle is involved, or as illustrated here, the square in the bottom right corner. If this were a non-right angle triangle, a different formula utilizing the height of the triangle would be used instead.

\(A = \frac{h_{b}+b}{2}\)

Since the right angle exists, a height is already given using one of the arms of the triangle in its place. We can also confirm it is a triangle by adding up all degrees of the triangle, in which it would equal 180 degrees confirming it is indeed a triangle as well.

By using trigonometric relations we will see that the area is:

How to find the area of one triangular section?

Remember that the area of a right triangle is equal to the product between the cathetus divided by 2.

Sadly, here we don't have the measures of any sides of the triangle, so getting the actual area is impossible, but if we assume that some dimension is given (like the height, let's say that is h).

h is the cathetus adjacent to the 60° angle, then the other cathetus (the bottom one) is given by:

tan(60°) = x/h

x = tan(60°)*h

Then our two catheti are h and tan(60°)*h.

This means that the area will be:

Here we only used trigonometric properties, so this area will work for any height given (always that the value of h is the cathetus adjacent to the 60° angle).

If you want to learn more about right triangles:

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Answer:

The answer to your problem is, B. a circle graph titled social media usage, with four sections labeled vidtok 17 percent, headbook 48 percent, picturegram 25 percent, and tweeter 10 percent

Step-by-step explanation:

By adding all the numbers you get 500, but you need to make it 100% so you divide the total number by five. To know what percent out of 100 you need to divide all of the variables by 5.

85 ÷ 5 = 172

40 ÷ 5 = 48

125 ÷ 5 = 25

50 ÷ 5 = 10

Thus the answer to your problem is, B. a circle graph titled social media usage, with four sections labeled vidtok 17 percent, headbook 48 percent, picturegram 25 percent, and tweeter 10 percent

2 the answer is 2 because 2 is 2

Answer: 12 degrees or 11 5/5 or 60/5

Step-by-step explanation:

Since the temperature is rising 2 2/5 per 1/5 of an hour we just need to multiply 2 2/5 times 5 because 5/5 would equal the whole hour. In order to multiply easier you can change 2 2/5 to an improper fraction by multiplying the whole number with the denominator and then adding the numerator. Which you should get 12/5 next change 5 to a fraction which would be 5/1. 5 times 12 is 60 and 5 times 1 is 5. You get 60/5 which if divided is 12.

For the number line you just have to find 1/5 and 2 2/5 on it and mark it.

Based on the given information, where there are 7 blue marbles and 3 purple marbles, and assuming the selection process is random and each marble has an equal chance of being selected, the best prediction for the number of times you will pick a blue or a purple marble can be calculated as follows:

Out of the 60 selections, we can expect to pick a blue marble approximately 7/10 times (since there are 7 blue marbles out of a total of 10 marbles). Therefore, the best prediction for the number of times you will pick a blue marble is around 60 * (7/10) = 42 times.

Similarly, we can expect to pick a purple marble approximately 3/10 times (since there are 3 purple marbles out of a total of 10 marbles). Therefore, the best prediction for the number of times you will pick a purple marble is around 60 * (3/10) = 18 times.

Hence, the best prediction is that you will pick a blue marble around 42 times and a purple marble around 18 times out of the 60 selections.

~~~Harsha~~~

Answer:

18 times

Step-by-step explanation:

If there are 7 blue marbles and 3 purple marbles, the probability of selecting a blue marble is 7/10, and the probability of selecting a purple marble is 3/10.

Since you're selecting marbles without replacement, the probability will change with each pick. To calculate the best prediction for the number of times you will pick a blue or purple marble, we can multiply the probabilities by the number of picks.

Expected number of blue marbles picked: (7/10) * 60 = 42

Expected number of purple marbles picked: (3/10) * 60 = 18

Therefore, the best prediction is that you will pick a blue marble approximately 42 times and a purple marble approximately 18 times when selecting marbles without looking 60 times.

Answer: (rounded to the nearest tenth)

31.8, 9.3, 0.7, 3.1

Step-by-step explanation:

891.3 ÷ 28= 31.8

64.8 ÷ 7=9.25 or 9.3

57.8 ÷ 81= 0.71

256.1 ÷ 82= 3.12

Answer:

10(10)+9(7)=

100+63=163

Step-by-step explanation:

Answer:

point-slope equation of the line through (1,0) and (6,-3). Use Exact Numbers

Step-by-step explanation:

Answer:

Step-by-step explanation:

\((1,0) =(x_1,y_1),\\ (6,3)=(x_2,y_2))\\\\\frac{y-y_1}{x-x_1}= \frac{x_2-x_1}{y_2-y_1} \\ \\\\\frac{y-0}{x-1} = \frac{6-1}{3-0} \\\\\frac{y-0}{x-1} = \frac{5}{3}\\\\3(y-0)=5(x-1)\\\\3y -0 =5x-5\\\\3y = 5x-5+0\\\\3y = 5x-5\\\\\frac{3y}{3} = \frac{5}{3} x= \frac{5}{3} \\\\y = \frac{5}{3} x= \frac{5}{3}\\\)

Using the distributive property:

10a - 15b + 25

(10a - 10b) - 5b + 25

10(a - b) - 5b + 25

(10(a - b) - 5)b + 25

((10a - 10b) - 5)b + 25

(Factored form)

Answer:

Either 2 or 3 but i believe it's "Yes, all the sample means are less than 10."

Step-by-step explanation:

Find Mean of means

(7+4+5+8)/4

6

Answer:

Step-by-step explanation:

1. The length of the fish a fisherman catches, f, must be at least 8 inches for him to keep it.

8 inches <_f

2. The number of days, d, of sunshine is not 32.

i don't get this one sorry

3. The value, v, of the car is less than $8,400.

v<$8,400

4. The number of people, p, that a café can seat at once is no more than 53.

p<_53 people

5. The time, t, a customer has left on a parking meter is at least 13 minutes.

t<_13 minutes

6. The bill, b, was less than $56.

b<_$56

17, and 19 might be wrong. (just which way the arrow goes)

Answer:

table number2

i hope it helped you

Step-by-step explanation:

20 multiply 2 is =40

20multiply7 =140

20 multiply 14=280

Answer:

\(56 + 28x \leqslant 480\)

Answer:

MAD: 4.5

Step-by-step explanation:

Try not to cheat on the I-Ready, it is supposed to help gauge your level and help you improve from there.

Answer:

Step-by-step explanation:

A is the correct answer

Answer:

this is the simplest form

Step-by-step explanation:

since there is a variable in the fraction, you can't simplify it any further until we know that term.

Answer:

-7y/2

Step-by-step explanation:

-7y/2 cannot be simplified any further as there are no common factors of -7y and 2

Answer: 999999 plus 999999

Step-by-step explanation:

Answer:

\(x=\frac{1}{r} +1\)

Step-by-step explanation:

\(r=\frac{1}{x-1}\)
\(r(x-1)=1\)
\(x-1=\frac{1}{r}\)
\(x=\frac{1}{r} +1\)

Answer:

\(x=\dfrac{1+r}{r}\)

Step-by-step explanation:

Given equation:

\(r=\dfrac{1}{(x-1)}\)

Multiply both sides by (x - 1):

\(\implies r(x-1)=\dfrac{1}{(x-1)} \cdot (x-1)\)

\(\implies r(x-1)=1\)

Expand the brackets:

\(\implies rx-r=1\)

Add r to both sides:

\(\implies rx-r+r=1+r\)

\(\implies rx=1+r\)

Divide both sides by r:

\(\implies \dfrac{rx}{r}=\dfrac{1+r}{r}\)

\(\implies x=\dfrac{1+r}{r}\)

Answer:

your answer will be 29*

am not sure

Step-by-step explanation: