whats this shape called?​

Answer:

Honor code states you can't post questions from tests. Sorry.

Step-by-step explanation:

Answer:

3(-2)2-9

-12-9

-21

Step-by-step explanation:

×=-2 so -2×3=-6 which is -6×2=-12

and we have -9

soo -12-9=-21

On solving the provided question we can say that  by linear equation number of, Red Balls = 6x 18; Blue Balls = 3;  Yellow Balls = 6

A linear equation is one that has the form y=mx+b in algebra. B is the slope, and m is the y-intercept. It's usual to refer to the previous clause as a "linear equation with two variables" because y and x are variables. The two-variable linear equations known as bivariate linear equations. There are several instances of linear equations: 2x - 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, x + y = 2, and 3x - y + z = 3. It is referred to as being linear when an equation has the form y=mx+b, where m stands for the slope and b for the y-intercept.When an equation has the formula y=mx+b, with m denoting the slope and b the y-intercept, it is referred to as being linear.

A bag contains 27 balls

• The ratio of red to blue to yellow balls is 6:1:2

To Find : The number of red,blue and yellow balls present in the bag

Let us take the variable as 'x' to represent the number of balls in the bag

When we Put the values in a equation,

6X+X+2x = 27

9x = 27

x = 3

Hence the number of,

Red Balls = 6x 18

Blue Balls = 3

Yellow Balls = 6

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Answer:

angles remain congruent

Step-by-step explanation:

all transformations, except dilations, do not change lengths of sides or angle measures

Answer:

Im guessing -2

Step-by-step explanation:

Answer:

-3

Step-by-step explanation:

The total amount of money that Marco has that week would be = $ d + 14.55.

An allowance income is defined as the amount of money an individual earns that can be used to solve their personal needs.

Marco received double payment, an allowance from the mother and from newspaper route.

The total amount of money received from his mother for allowance for that same week = $ d

The amount of money he earned from his newspaper = $14.55

Therefore the total amount of money Marco has that week =$ d + 14.55

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Complete question:

Marco's mom gave him d dollars for his allowance one week. He also earned \$14.55$14.55dollar sign, 14, point, 55 for his newspaper route that week.

How much money does Marco have?

Write your answer as an expression.

Answer:

u ≈ 11

Step-by-step explanation:

10² = u² - 2(5)(2)

100 = u² - 20

120 = u²

u = [tex]\sqrt{120}[/tex]

u = [tex]\sqrt{4}[/tex][tex]\sqrt{30}[/tex] = 2[tex]\sqrt{30}[/tex] which is 10.95

Answer:

30 yards per minute

or

150 feet per minute

Step-by-step explanation:

450/15 = 30

can i have brainliest please?

Answer: It is a straight line

Step-by-step explanation:

The probability for all five answers is greater than 0.

The normal distribution is a type of continuous probability distribution, and probability can never equal 0 for a continuous distribution. The probability of a particular value (in this case, 8) is the area under the normal curve at that point. Since the area under a continuous distribution is always greater than 0, the probability of a specific value (A) is not 0.

The probability of a range of values (D) is calculated by subtracting the area under the normal curve to the left of the lower value, from the area under the normal curve to the right of the higher value. This calculation would produce a value greater than 0.

The probability of values greater than a given number (B) is calculated by subtracting the area under the normal curve to the left of the given number, from the area under the normal curve to the right of the given number. This calculation would produce a value greater than 0.

The probability of values less than a given number (C) is calculated by subtracting the area under the normal curve to the right of the given number, from the area under the normal curve to the left of the given number. This calculation would produce a value greater than 0.

Finally, the probability of values less than one number or greater than another number (E) is calculated by subtracting the area under the normal curve to the left of the lower number, from the area under the normal curve to the right of the higher number. Again, this calculation would produce a value greater than 0.

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Answer: it is y=2.26x3.02^x

Step-by-step explanation:

Option D is correct.

An exponential regression is the process of finding the equation of the exponential function that fits best for a set of data.

[tex]y = ae^{bx}[/tex]

According to the question

We have a data.

Let the exponential regression equation be [tex]y = ae^{bx}[/tex]

Take two values of  x and y  from the given data for finding the value of a and [tex]e^{b}[/tex].

substitute y = 0.025 and x = -4 in [tex]y = ae^{bx}[/tex] we get

[tex]0.025 = ae^{-4b}...(1)[/tex]

similarly ,substitute y = 0.075 and x = -3 in [tex]y = ae^{bx}[/tex] we get

[tex]0.075 = ae^{-3b} ....(2)[/tex]

from equation 1 and 2

[tex]\frac{0.025}{0.075} = \frac{ae^{-4b} }{ae^{-3b} }[/tex]

⇒[tex]\0.333 = e^{-b}[/tex]

⇒[tex]ln(o.33) = -b[/tex]

⇒[tex]-(1,1086) = -b[/tex]

⇒ b = 1.1086

Therefore,

[tex]e^{b} = (2.718)^{1.1086} = 3.0041[/tex]

and substitute b = 1.1086 and [tex]e^{b} = 3.0041[/tex] in either equation 1 or 2, we get

a = 2.2

Thus, the exponential regression equation will be

[tex]y = (2.2)3.041^{x}[/tex]

Hence, option D is the correct one.

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Answer:

y=3x+3

Step-by-step explanation:

The y-intercept is at 3.

If you do rise over run, you get 3/1. Simplify to 3. Hope this helps.

This is because the mean is at the very center of the normal distribution. The center is at 0, with positive values on the right and negative values on the left.

Something like z = 1 means we're 1 standard deviation above the mean. As another example, z = -3 means we're 3 standard deviations below the mean.

⎆ The value of the z-score will tell how many standard deviations the person is away from the mean.

➟ If a z-score is equal to 0, then it will be on the mean. So, z-score for the mean is 0.

[tex] \\ z = \frac{(x-μ)}{σ} [/tex]

✐ Where,

The percentage of students who do not participate in a sport is C. 51.0%.

To find the percentage of students who do not participate in a sport, we can use the following formula:

(Number of students who do not participate in a sport) / (Total number of students) * 100%

From the table, we can see that the number of students who do not participate in a sport is 985, and the total number of students is 1930. So, plugging these values into the formula gives us:

= 985 / 1930 * 100%

= 51.03%

So, about 51.03% of students do not participate in a sport.

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Answer:

25%

Step-by-step explanation:

she earned $1,000

she spent $250

250/1000 = 0.25

0.25 x 100 = 25%

Answer:

[tex] \frac{250}{1000} \times \frac{100}{1} [/tex]

[tex] = 0.25 \times 100 \\ 25\%[/tex]

Answer:

The completed two column proof is presented as follows;

Statement  [tex]{}[/tex]                               Reason

1. AC bisects ∠A and ∠C [tex]{}[/tex]       1. Given

2. ∠ACB ≅ ∠ACD [tex]{}[/tex]                  2. Definition of bisector

3. ∠BAC ≅ ∠DAC     [tex]{}[/tex]              3. Definition of bisector

4. [tex]\overline {AC}[/tex] = [tex]\overline {AC}[/tex]     [tex]{}[/tex]                        4. Reflexive PE

5.  [tex]\overline {AC}[/tex] ≅ [tex]\overline {AC}[/tex]     [tex]{}[/tex]                      5. Segments with equal lengths are congruent

6. ΔABC ≅ ΔADC   [tex]{}[/tex]                6. By ASA

Step-by-step explanation:

The completed two column proof is presented as follows;

Statement  [tex]{}[/tex]                              

1. AC bisects ∠A and ∠C; The given data on the figure

2. ∠ACB ≅ ∠ACD;[tex]{}[/tex] A bisected angle is divided into two equal angles which are congruent to each other

3. ∠BAC ≅ ∠DAC     [tex]{}[/tex]              3. Definition of bisector

4. [tex]\overline {AC}[/tex] = [tex]\overline {AC}[/tex]     [tex]{}[/tex]                        4. Reflexive Property of Equality (PE)

5.  [tex]\overline {AC}[/tex] ≅ [tex]\overline {AC}[/tex]     [tex]{}[/tex]                      5. Segments with equal lengths are congruent

6. ΔABC ≅ ΔADC   [tex]{}[/tex]                6. By Angle-Side-Angle, ASA, is a condition for congruency of two triangles

Where two angles and the included side between the two angles on one triangle are equal to two angles and the included side between the two angles on another triangle, the two triangles are said to be congruent by the Angle-Side-Angle ASA rule and therefore, they each have equal measures for all corresponding angles sides.

Answer: 348

Step-by-step explanation: 12*29 = 348, which is the largest multiple less than 350.

Answer

The answer is 567

Step-by-step explanation:

189*3=567

Answer:

POKEMON YEAH!

Okay, so you first want to take 2485, and subtract it from 4500, because that is the amount of money he has already collected.

4500 - 2485 = 2015

Now you need to find out how many time you can multiply 155, to get 2015, or higher. In this case, I am just gonna divide:

2015/155 = 13

It will take him 13 more weeks to have enough for the Pokemon cards!

Step-by-step explanation:

Hope it helps! =D

Using the Pythagorean Theorem (a2 + b2 = c2), plug in the known side lengths to solve for the two unknown sides of an acute triangle.

1. Identify the two known side lengths of the triangle.

2. Plug the known side lengths into the Pythagorean Theorem equation (a2 + b2 = c2).

3. Solve for the two unknown sides of the triangle.

4. The two unknown sides are the lengths of the missing sides of the triangle.

5. To solve for the unknown side lengths, first, calculate the hypotenuse (the longest side) by finding the square root of the sum of the squares of the two shorter sides.

6. Then, calculate the shorter sides by subtracting the square of the hypotenuse from the sum of the squares of the two shorter sides.

7. Finally, use the Pythagorean Theorem to calculate the missing side lengths.

8. The two missing side lengths will be the unknown side lengths of the triangle.

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Step-by-step explanation:

1.

A.Company T

B.Company A

C.At 20 minutes

2.

A.Tells you the rate of calling minutes

B.Its free.

C. Company K as it's free for the first five minutes.

Answer:

24 + x + 24

X is 0

Answer: substract 24 from both sides

then x = 0

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

Answer:

Step-by-step explanation:

the first equation we konw x=-2y-1,

then -2y-1=y+5

so, y = -2, x=3

Answer:

y = -2

x = 3

Step-by-step explanation:

y + 5 + 2y = -1 (substitute)

3y + 5 = -1        (Simplify)

3y = -6            (Get rid of 5)

y = -2                 (Divide)

x = -2 + 5         (plug in y)

x = 3                 (simplify)

hope this helps :)

Answer:

a = 5

Step-by-step explanation:

Using Pythagoras' theorem in the right triangle

a² + 12² = 13²

a² + 144 = 169 ( subtract 144 from both sides )

a² = 25 ( take the square root of both sides )

a = [tex]\sqrt{25}[/tex] = 5

Answer:

pythagoras theorem formula

h^2=p^2+b^2

here hypotenuse is 13

you can take a as either perpendicular or base

lets take it base

h^2=p^2+b^2

(13)^2=(12)^2+(a)^2

169=144+a^2

169-144=a^2

25=a^2

[tex]\sqrt{25}[/tex]=a

5=a

Step-by-step explanation:

Answer:

C Because thats the only thing there is no doubt

Answer:

6z + 6x + 6y

Step-by-step explanation:

Just distribute the 6 and multiply them to all variables.

We have inequality. So, we have to take a test point (0,0) and as the statement is true therefore Graph will shade towards the test point (0,0).

2(0)+3(0) ≤ 30 => 0≤ 30

An inequality in mathematics depicts the connection between two values in an algebraic statement that are not equal. One of the two variables on the two sides of the inequality may be greater than, greater than or equal to, less than, or less than or equal to another value, according to inequality signals.

A family of 3 children and 2 adults visited a health club. The club charges $y an hour for each child and $x an hour for each adult.

First we make inequality according to question.

In a family number of children 3

Charge for 1 child = $y per hour

Charge for 3 children = 3y

Charge for 1 Adult = $x per hour

Charge for 2 adults = 2x

If the family does not want to spend more than $30 an hour at health club.

2x+3y≤30

Where, x and y should be greater than 0.

x≥0 and y ≥0

Now we make the graph of this inequality.

First we take equality of equation and then find x and y table.

2x+3y=30

x        y

0        10

6        6

15      0

Here we have inequality. So, we have to take a test point (0,0)

2(0)+3(0) ≤ 30 => 0≤ 30

This statement is true. So, Graph will shade towards the test point (0,0)

Please see the attachment for graph:

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Answer:

8u - 20

Step-by-step explanation: