Select all the expressions that are equivalent to -2(4-3x)+(5x-2)

Step-by-step explanation:

here is your answer, this is how it's solved

Answer:

thhe answer would only be 3 feet

Step-by-step explanation:

The number of ways in which you can win first prize and your mom went the second prize will be 8. Then the correct option is D.

A permutation is an act of putting things or elements in the right sequence. Combinations are a method of picking things or pieces from a collection of objects or sets when the sequence of the objects is irrelevant.

You and your mom enter the drawing with three different prices the prizes are awarded at random is a total of 8 people entered the drawing.

Then the number of the ways in which you can win first prize and your mom went the second prize will be

Let x be the number of different ways.

Then we have

[tex]\rm x = \ ^8C_1\\\\x = 8[/tex]

Thus, the number of ways in which you can win first prize and your mom went the second prize will be 8.

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Answer:

258ft squared is possibly the answer

Answer:

A solution of a system of equations is a list of numbers x , y , z ,... that make all of the equations true simultaneously. The solution set of a system of equations is the collection of all solutions. Solving the system means finding all solutions with formulas involving some number of parameters.

Step-by-step explanation:

hope it will help you

Answer:

Step-by-step explanation:

In this context "solution" means a point whose x- and y-coordinates satisfy both equations.

If we're given the two linear equations x + y = 3 and 2x - y  = 7, we can solve them by addition and subtraction (among other methods):

3x = 3 + 7, or 3x = 10, or x = 10/3.  

Substitute this result into x + y = 3 to find the corresponding y value;  

10/3 + y = 3, or 10/3 + y = 9/3, or y = 1/3.  

Then the "solution" is the point (10/3, 1/3).

a) Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7

b) The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as 98 square feet

The perimeter is defined as the sum of all the sides of the figure. Now we have The area in, square feet, of Shawn’s garden is found be calculating 15(2x + 7). Shawn incorrectly says the area can also be found using the expression 30x + 7.

The correct area =15(2x + 7).

= 30x + 105 square feet

The error in Shawn’s expression is

= 15(2x + 7)

= 30x + 7 square feet

Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7

The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as

30x + 105 square feet - 30x + 7 square feet

= 30x + 105 - (30x + 7)

= 30x - 30x + 105 - 7

= 98 square feet

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Answer:

A) The volume of the cylinder is 1017.9 in³.

B) The volume of the enlarged cylinder is 27,482.7 in³.

Step-by-step explanation:

The radius of the cylinder is r = 6 in and the height is h = 9 in.

The volume of a cylinder can be found using the formula:

Substitute r = 6 and h = 9 into the formula.

The volume of the cylinder is 1017.876 in³.

If the cylinder is enlarged by a factor of 3, this means that each dimension is getting increased by 3.

Therefore, we need to multiply the original volume by a factor of three cubed; 3³.

The volume of the enlarged cylinder is 27,482.652 in³.

[tex]\text{If the number is x,}\\\\~~~~~\dfrac 47 \cdot x =36\\\\\implies 4x = 36 \times 7\\\\\implies x =\dfrac{36 \times 7}4\\ \\\implies x = 9 \times 7\\\\\implies x = 63\\\\\text{Hence, the number is 63.}[/tex]

Answer:

[tex]\huge\boxed{\bf\:x = 63}[/tex]

Step-by-step explanation:

Given,

Let's take the unknown number as 'x'.

Now,

4/7 × x = 36

Take the reciprocal of 4/7 to the other side of the equation .

x = 36 × 7/4

Cancel 36 by 4.

x = 9 × 7

Multiply the 2 numbers

x = 63

[tex]\rule{150pt}{2pt}[/tex]

Answer:

The value of b in the quadratic equation is -3

Step-by-step explanation:

4x²-3x-11=0

a = 4

b = -3

c = -11

Answer:

16/2×4−20 = 12

Step-by-step explanation:

NOTE : Make sure to review the order of operations

16/2×4−20 = (16÷2)×4-20

                  = 8×4-20

                  = 32-20

                  = 12

Answer:

7/9 and 6

Step-by-step explanation:

The given expression is

=> [tex]\frac{7m}{9} +6r-\frac{4}{5}[/tex]

Coefficients are the numbers with variables.

So, here in this expression the coefficients are 7/9 and 6

Answer:

48

Step-by-step explanation:

20 scrunchies=3 dollars

7.25 dollars = ?

1 dollar=6.66666666

0.25 dollar=1.666666666666

7*6.66666666=46.666666

Answer:

HCF=15    LCM=6,300

Step-by-step explanation:

Answer:

HCF = 15

LCM = 6300.

Step-by-step explanation:

Write them out as a product of their prime factors:

180 = 2*2*3*3*5

150 = 2*3*5*5

315 = 3*3*5*7

Picking out the factors common to all 3 list of prime factors:

The GCF = 3*5 = 15.

To find the LCM we pick out all the numbers except if there are repeated number we only use them once, So for example  we only take 2*2 for the calculation as there is a pair of 2's in 180 and 150 factors and there is an extra 2 in 180 - so we only take 2 of the 3 2's.

LCM = 2 * 2 * 3 * 3 * 5 * 5 * 7

= 6300.

Answer:

-128

Step-by-step explanation:

hope it helps srry if its wroung:>

The probability that Whitney will win Prize 2 will be [tex]\frac{1}{9}[/tex]. Probability is the ratio of the favorable event to the total number of events.

Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1.

Its basic meaning is something is likely to happen. It is the ratio of the favorable event to the total number of events.

The total no of the contestants=3

Randomly selection of the prize-=1

The probability that Whitney will win Prize 2 will be;

[tex]\rm P= P(A)P(B) \\\\ P=\frac{1}{3} \times \frac{1}{3}\\\\ P= \frac{1}{9}[/tex]

Hence, the probability that Whitney will win Prize 2 will be [tex]\frac{1}{9}[/tex]

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1. x=71

This is solved by isolating the radical then raising each side of the equation to the power of its index.

2. NO SOLUTION

There are no values of x that make the equation true.

Answer:

1. 71

2. No solution

Answer:

D .

Step-by-step explanation:

that is the answer to the question

Answer:it ends at 11:00

Step-by-step explanation:8:30+2:30=11:00

Answer:

11:00

Step-by-step explanation:

8:30 + half an hour = 9:00

9:00 + 2 hours = 11:00

Answer:

6 , 9

Step-by-step explanation:

- 3 x - 4y = - 54
    4x + 4y = 60
Eliminate => x = 6

x + y = 15
when x =6  ; => y = 9

60 is the amazing cool answer XD

The temperature will be when you take the last sip 18 minutes after you poured it, will be 114.64 °F.

The exponent denotes that the base will rise to a specific level of strength. The base is X, and the power is n.

Isaac Newton proved that fluids cool exponentially when left out in an open space.

A cup of coffee was poured at a temperature of 210°F and left on the dining room table to cool.

If you start drinking it at a temperature of 150°F, 10 minutes later.

The exponential function is given as

[tex]\rm T_f = T_i (a)^{-t}[/tex]

Then the initial temperature will be 210°F.

[tex]\begin{aligned} 150 &= \rm 210 (a)^{-10}\\\\0.7143 &= \rm a^{-10}\\\\-0.146 &= \rm -10 \log a\\\\0.0146 &= \rm \log a\\\\\rm a &= \rm 1.0342 \end{aligned}[/tex]

Then the equation will be

[tex]\rm T_f = 210 (1.0342)^{-t}[/tex]

Then the temperature will be when you take the last sip 18 minutes after you poured it.

[tex]\rm T_f = 210 (1.0342)^{-18}\\\\T_f = 114.64 \ ^oF[/tex]

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Answer:

4.50(x)+75=299

Answer:

A. 3(x-5)

Step-by-step explanation:

USE M-A-T-H-W-A-Y

Step-by-step explanation:

[tex]3x - 15[/tex]

Bind the expression with the common factor three .

3 ( x - 5 )

Answer:

D. y = -1/8(x-2)² - 3

Step-by-step explanation:

General eqaution of a parabola : y = a(x-h)² + k where (h,k) is the vertex and a determines whether the parabola goes up or down as well as the width of the parabola

step 1 identify vertex

the vertex is the point that starts the curve

the vertex appears to be at (2,-3)

step 2 plug in h and k using the x and y values of the vertex

again we have  y = a(x-h)² + k where (h,k) is the vertex

here the vertex is (2,-3) so h = 2 and k = -3

we get y = a(x-2)² - 3

because the curve goes down a must be negative 1/8

so the final equation would be y = -1/8(x-2)² - 3 meaning D would be the answer

Answer:

D.  They do not have the same ratio of girls to boys because a straight line cannot be drawn through the points (14, 16), (17, 19), and (0, 0) on a coordinate grid.

Step-by-step explanation:

In order to check if the ratio is the same, convert the ratios to (x, y) points, plot them on a graph and see if you can draw a straight line through them and the origin (0, 0).  If you can, then the ratios are the same.  If not, then the ratios are not the same.

After plotting (14, 16) and (17, 19) and (0, 0) on a graph (attached), you can see that a straight line will only go through any two of the points, but not all three.  Therefore, the ratios are not the same.

Answer:

a=216

Step-by-step explanation: