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

Answer:

-16

Step-by-step explanation:

2(3-4-7)

6-8-14

-2-14

-16

Answer:

Step-by-step explanation:

2(3 - 4 - 7) = 2(3 - 11)

                = 2*(-8)

               = -16

Answer:

It is 129

Step-by-step explanation:

Since all the digits in the decimal from right to left are less than 5, they all are nearest to 0

So 129.444 can be rounded to 129.000 or 129

Answer:

[tex]x = 6[/tex]

Step-by-step explanation:

[tex]7x + 6 + 2x = 60 \\9x + 6 = 60[/tex]

add [tex]-6[/tex] to both sides

[tex]9x + 6 - 6 = 60 - 6 \\9x = 54[/tex]

Divide both sides by [tex]9[/tex]

[tex]\frac{9x}{9} = \frac{54}{9}[/tex]

[tex]x = 6[/tex]

Answer: 3

Step-by-step explanation:

Let the smaller number be y.

Since the difference of two numbers is 5,then the larger number will be: y+5

The sum of three times the larger number and twice the smaller number is 30. This can be written as:

3(y+5) + 2y = 30

3y + 15 + 2y = 30

5y + 15 = 30

5y = 30 - 15

5y = 15

y = 15/5

y = 3

The smaller number is 3

Answer:

42857142857

Step-by-step explanation:

3/7 = 0.42857142857...

Answer:

4

Step-by-step explanation:

The theoretical probability of getting a number is 1/6 since there is 6 sides

We rolled the dice 60 times

The experimental = x/60  where x is the number of times the number comes up

We want the theoretical to equal the experimental

1/6 = x/60

1/6 * 10/10 = 10/60

x = 10

This occurs for the number 4

Answer:

I'm pretty sure it's -15

Step-by-step explanation:

Answer:

Mean of this data set is 43.7857

the median of this data set is 42

Step-by-step explanation:

The complete question is:

Fifteen seventh graders were randomly selected to see how many pushups in a row they could do. Their data are shown. A. b. 45, 40, 36, 38, 42, 48, 40, 40, 70, 45, 42, 43, 48, 36

a. Determine the mean of this data set.

b. Determine the median of this data set.

Given:

Data:

45, 40, 36, 38, 42, 48, 40, 40, 70, 45, 42, 43, 48, 36

To find:

a) Mean

b) Median

Solution:

a)

The formula to find Mean is :

Mean = Sum of all the values / Total number of values

          = ∑ x / n

Here there are total 14 values so n = 14

Now lets find sum of all the values

∑ x =  45 + 40 + 36 + 38 + 42 + 48 + 40 + 40 + 70 + 45 + 42 + 43 + 48 + 36

     = 613

Now compute Mean:

Mean = ∑ x / n

          =  613 / 14

         = 43.785714

Mean = 43.7857

b)

The formula to find Median is:

Since there are 14 values in the data this means the data has even number of values. So to compute the median of even number of values:

First put the values in order.

Second, find the middle pair of values in data

Third, find the value that is half way between them i.e. by adding the two middle pair values and dividing the result by 2

45, 40, 36, 38, 42, 48, 40, 40, 70, 45, 42, 43, 48, 36

Ordering the values :

36, 36, 38, 40, 40, 40, 42, 42, 43, 45, 45, 48, 48, 70

Find the middle two numbers:

42, 42

We can see that both are same values so median value is 42 but to follow the above steps:

Now add these two numbers and divide the sum by 2:

42 + 42 = 84

84/2 = 42

So the median of this data set is 42

Answer:

Step-by-step explanation:

D

Answer:

36

Step-by-step explanation:

So u do 20 multiply 2=40-4=36

to check the answer we know that it has to be out of 100% so u can do 20+36+40+4=100 so she got 36/100% which is an F and she got 16 as her finale score I hope this works

Answer:

Step-by-step explanation:

3²×3^4 = 3^6  ( when multiply add exponents)

correct answers:

first one 3^6

fourth one : 3^-4 * 3^10 = 3^6 (-4+10=6)

sixth one : 3³*3³ = 3^6

last one : (3*3)(2*3*3*3)= 3²*3^4 = 3^6

Answer:

y= -7/4

Demical: y= - 1.75

Step-by-step explanation:

Add 15 to both sides

-15 - 8y + 15= -1 + 15

Simplify

-8y = 14

Divide both sides by -8

-8y/-8 = 14/-8

Simplify

y= -7/4

Answer:

n+5>11

Step-by-step explanation:

> is greater than

< is less than

> with the line under it is greater than or equal to

<with the line under it is less than or equal to

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{(5.5 \: , \: - 9.5)}}}}}[/tex]

Step-by-step explanation:

Let the points be A and B

Let A ( 9 , -9 ) be ( x₁ , y₁ ) and B ( 2 , - 10 ) be ( x₂ , y₂ )

Finding the midpoint

[tex] \boxed{ \sf{midpoint = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} }}[/tex]

[tex] \longrightarrow{ \sf{midpoint = ( \frac{9 + 2}{2} , \: \frac{ - 9 + ( - 10)}{2}}} )[/tex]

[tex] \longrightarrow{ \sf {midpoint = ( \frac{11}{2} \: , \: \frac{ - 9 - 10}{2}})} [/tex]

[tex] \longrightarrow{ \sf{midpoint = (5.5 \: , \: \frac{ - 19}{2}}} )[/tex]

[tex] \longrightarrow{ \sf{midpoint = (5.5 \: , - 9.5}})[/tex]

Hope I helped!

Best regards! :D

The volume of a cube = e^3

e = a single edge of the cube.

Area of a square = a^2

a = a single side of the square.

The volume of our cube = 13 ft^3

e = [tex]\sqrt[3]{13}[/tex] = 2.35 ft

The area of our square =  4 ft^2

a = [tex]\sqrt{4}[/tex] = 2 ft

The edge of our cube is greater than the length of our square's side.

The poster will lie flat in the box.

Answer:

56.06

Step-by-step explanation:

 58.84

--  2.78

______

 56.06

I don't really know how else to explain this, but there ya go! Goodluck on your test or whatever you're doing! Stay safe ♥♥♥

The difference between the given decimal numbers is 56.06.

The given decimal numbers are 58.84 and 2.78​.

We need to find the difference between the given decimal numbers.

To subtract decimals, begin by writing the numbers in a column, with the decimal points aligned. If necessary, add zeroes as placeholders to make sure there are values in each column. Subtract from right to left. Write the decimal point in the difference directly below the decimal point in the subtrahend.

Now, 58.84 - 2.78​=56.06

Therefore, the difference between the given decimal numbers is 56.06.

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Answer:

a + b + c = 1

Step-by-step explanation:

To expand the bracket, [tex](2x - 3)^{2}[/tex] we will simply be multiplying the bracket by itself.

This will be the same as having [tex](2x - 3) \times (2x - 3)[/tex]

The first step in doing this is to multiply each of the values in the second bracket by the values in the first one.

[tex]2x \times 2x =4x^2[/tex]

[tex]2x\times -3 = -6x[/tex]

[tex]-3 \times 2x = -6x[/tex]

[tex]-3 \times -3 =9[/tex]

Once this is done, the next step is to group the like terms and evaluate the result.

[tex]4x^2 -6x-6x +9[/tex]

[tex]4x^2 -12x +9[/tex]

This is algebraic expression is the result of the expansion of [tex](2x - 3)^{2}[/tex] .

Based on the descending powers of x

a = 4

b = -12

c = 9

These are the coefficients of [tex]x^2[/tex]  and [tex]x[/tex] and also the last figure.

a + b + c = 4 -12 +9 = 1

Answer:

1/8

Step-by-step explanation:

3/4 can be written as 6/8, -5+6 is 1 so the answer is 1/8.

Answer:

q= -4

Step-by-step explanation:

[tex]5q + 6 = 2 q- 2 + q[/tex]

Collect like terms and simplify

[tex]5q - 2q - q = - 2 - 6 \\ 2q = - 8[/tex]

Divide both sides of the equation by 2

[tex] \frac{2q}{2} = \frac{ - 8}{2} \\ [/tex]

Simplify

[tex]q = - 4[/tex]

The requried solution to the equation 5q + 6 = 2q - 2 + q is q = -4.

To solve the equation 5q + 6 = 2q - 2 + q, we need to simplify and combine like terms. Let's proceed step by step:

First, let's combine the q terms on the right side of the equation:

5q + 6 = 2q - 2 + q

Combining the q terms on the right side, we have:

5q + 6 = 3q - 2

Next, let's isolate the q term by moving all other terms to the opposite side:

To move the 3q term to the left side, we subtract 3q from both sides:

5q - 3q + 6 = -2

Simplifying the left side:

2q + 6 = -2

Next, let's isolate the constant term by moving 6 to the right side:

Subtracting 6 from both sides:

2q = -2 - 6

2q = -8

Finally, to solve for q, divide both sides by 2:

q = -8/2

q = -4

Therefore, the solution to the equation 5q + 6 = 2q - 2 + q is q = -4.

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Answer:Benito used equals signs when he should have used congruency symbols

Step-by-step explanation:

Answer:

Watered

Step-by-step explanation:

Hope this helps

Answer:

watered

Step-by-step explanation:

Answer:  Explanation and answer is attached.

Step-by-step explanation:

Answer: -5a + 3b

Step-by-step explanation:

3a + 2b - 8a + b

Start with writing the like terms next to each so that you don't get confused:

3a - 8a + 2b + b

Now, simply the 'a' variable to get:

-5a + 2b + b

Finally simplify the 'b' variable to get:

-5a + 3b

The above expression cannot be simplified further as they do not have any common terms. Therefore, the expression -5a + 3b is in it's simplest form.

The required simplified expression is given as -5a + 3b.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
Given expression,
= 3a + 2b - 8a + b
For the above expression, we have to add the coefficients of  a and b.
= -5a + 3b

Thus, the required simplified expression is given as -5a + 3b.

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Answer:

Well your using absolute value and everything in absolute value is positive so you get rid of the negative.

Step-by-step explanation:

So you distribute the negative into the absolute value equation . And it leaves you with

|-1+5a|=29 now you can solve

your subtract your -1 from both sides bc you are solving for a

that gives you

5a=30 then you divide 5 divided by 30 is what 6 so that’s your answer

a=6

Answer:

80%

Step-by-step explanation:

1. We assume, that the number 56 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 56, so we can write it down as 100%=56.

4. We know, that x% equals 44.8 of the output value, so we can write it down as x%=44.8.

5. Now we have two simple equations:

1) 100%=56

2) x%=44.8

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=56/44.8

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 44.8 is what percent of 56

100%/x%=56/44.8

(100/x)*x=(56/44.8)*x       - we multiply both sides of the equation by x

100=1.25*x       - we divide both sides of the equation by (1.25) to get x

100/1.25=x

80=x

x=80

now we have:

44.8 is 80% of 56

Answer:

Hi there!!

Your answer is:

44.8 is 80% of 56!

Step-by-step explanation:

56 = 100%

/56

1 = 1 &11/14

×44.8

44.8 = 80%

I hope this helps!

Answer:

Triangular Prism

Step-by-step explanation:

Given

The sketch in the attached diagram

Required

Determine the shape it represents

Analyzing the options 1 after the other

Triangular Prism:

This has 5 sides; 2 of which are triangles while the other are rectangles

Rectangular Prism

This, in other words represents a cuboid

Triangular Pyramid

This has 4 sides, all of which are triangles

Rectangular Pyramid

This has 5 sides; 4 of which are triangles while the last is a square of rectangle.

From the analysis above, the best option that answers the question is The Triangular Prism because it perfectly describes Lucia's drawing

Answer:

n = m r - r t

Step-by-step explanation:

Solve for n:

m = n/r + t

Hint: | Reverse the equality in m = n/r + t in order to isolate n to the left hand side.

m = n/r + t is equivalent to n/r + t = m:

n/r + t = m

Hint: | Isolate terms with n to the left hand side.

Subtract t from both sides:

n/r = -t + m

Hint: | Solve for n.

Multiply both sides by r:

Answer: n = m r - r t

Answer:

                11

3.456 × 10

Step-by-step explanation:

Answer:

f=1

Step-by-step explanation:

Let start off with doing -f plus 4f which gives you 3f. The equation would now be 2+3f=8-3f. Add 3f so you can cancel out the -3f and add the 3f to the other 3f. Now your equation is 2+6f=8. Cancel out do by doing -2. (Don't forget to to it to the 8 also.) Now your equation is 6f=6. Divide 6 from both sides to get 1. (You divide because you want to get f alone.