Plsss i need this today asap im giving 30 points
evaluate each expression.
1. 80 - 4 to the power of 2 divide 8
2. 92.3 - (3.2 divide 0.4) x 2 to the power of 3
3. [(2 to the power of 3 x 2.5 divide 1/2)] + 120
4. [(2 x 10 to the power of 0) divide 1/3 + 8

Answer:

The answer is D : 4.

Step-by-step explanation:

=2x-3>11-5x

=2x-3+5x>11

=7x-3>11

=7x>11+3

=7x>14

=7x/7>14/7

=x>2

By simplifying the problem, you can see that "x" must be greater than 2. Therefore, eliminating all other possible answers that are shown, but 4.

I answered the same questions with the same exact wording and explanation so please don't report any answers that are the same as this one, they are all mine and written by me.

Answer:

50.24ftt²

Step-by-step explanation:

surface area of sphere=4πr²

solution

4*3.14*2*2

=50.24ftt²

Answer:

Step-by-step explanation:

Vertices of the quadrilateral are (-4, 1), (-3, 2), (-1, 2) and (-2, 1).

If the given quadrilateral is dilated by ta scale factor of 1.5 about the origin.

Rule for the dilation,

(x, y) → (kx, ky) [k = scale factor]

New vertices of the quadrilateral after the transformation will be,

(-4, 1) → (1.5×4, 1.5×1)

        → (-6, 1.5)

(-3, 2) → (-4.5, 3)

(-1, 2) → (-1.5, 3)

(-2, 1) → (-3, 1.5)

Now the new points are rotated by 90° clockwise about the origin,

Rule for the rotation of the points,

(x, y) → (y, -x)

So the new vertices will be,

(-6, 1.5) → (1.5, 6)

(-4.5, 3) → (3, 4.5)

(-1.5, 3) → (3, 1.5)

(-3, 1.5) → (1.5, 3)

We can plot these points on the graph to form a new (image) quadrilateral.

Answer:

-1

Step-by-step explanation:

(-1) ^3

-1*-1*-1

1 * -1

-1

Answer:

-1

Step-by-step explanation:

Cube of -1:

-1 × -1× -1= -1

Answer:

Number of trucks = 28

Number of cars = 14

Number of SUVs = 46

Total number of vehicles = 88

Step-by-step explanation:

Let T = the number of trucks, C = the number of cars, and S = the number of SUVs washed.

We are told :

They washed twice as many cars as trucks.

Hence: T = 2C

They washed a total of 28 trucks and cars and SUVs

Number of trucks = 28

Number of Cars =

T= 2 C

C = T/2

C = 28/2

C = 14

The number of trucks washed was 2 fewer than half the total number of cars and SUVs washed.

T = 1/2(C + S) - 2

T = 28

C = 14

Hence:

28 = 1/2(14 + S) - 2

28 = 1/2(14) + 1/2(S) - 2

28 = 7 - 2 +S/2

28 - 7 + 2 = S/2

30 - 7 = S/2

23 = S/2

S = 23 × 2

S = 46

Hence, number of SUVs = 46

Total number of vehicles = 28 + 14 + 46

= 88

Answer:

It $29.75

Step-by-step explanation:

Answer:

Orignal Price: $35

Discount Price: $29.75

Step-by-step explanation:

The original price is $35 since it says 15% off of $35. To get the discount price you would use the equation 35-15%, which would give you $29.75. Your new price is $29.75.

Hope this is what you were looking for. :D

Answer:

y = 7.2

Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 10 when x = 25, then

10 = 25k ( divide both sides by 25 )

[tex]\frac{10}{25}[/tex] = 0.4 = k

y = 0.4x ← equation of variation

When x = 18, then

y = 0.4 × 18 = 7.2

Answer:

1) To determine how much the change of $9,000 to $10,395, we must subtract 9,000 from 10,395;

10,395 - 9,000 = $1,395 is the change in price (an increase).

Formula to find percentage of change;

Change in price/original amount x 100% (100/100)

Replace those values:

1,935 (change in price/increase)       100

_____                      x                        _____ = %0.215

9,000(original amount)                      100

Answer:

  (c)  $31.75

Step-by-step explanation:

First of all, you need to use some number sense to estimate an answer.

If the $900 loan had no interest, 1/3 of it would be paid off in each of the 3 years, or about $300 each year. You will be making 12 monthly payments each year, so the amount of principal being paid with each payment is $300/12 = $25. Any answer much above this amount will not make sense, so you can immediately reject all choices except $31.75.

__

The simple interest on the loan is ...

  I = Prt = $900×0.09×3 = $243

That, too, is divided among the 36 payments, so adds ...

  $243/36 = $6.75 to each of the $25 payments we calculated above.

The monthly payment is ...

  $25 +6.75 = $31.75

Answer:

h = 2.5 cm

Step-by-step explanation:

the volume (V) of a prism is calculated as

V = Al ( A is the area of triangular base and l the length )

A = [tex]\frac{1}{2}[/tex] bh = [tex]\frac{1}{2}[/tex] × 4 × h = 2h and l = 7

given V = 35 , then

2h × 7 = 35

14h = 35 ( divide both sides by 14 )

h = 2.5 cm

Answer:

1 1/3

Step-by-step explanation:

Find the LCD of all of the fractions.

(9/24 + 8/24) + 15/24

Start by adding the parenthesis.

17/24 + 15/24

Add the remaining fractions.

32/24

Simplify the improper fraction.

1 8/24

Make the fraction into simplest form.

1 1/3

Answer:

I think its the one on the bottom right

Step-by-step explanation:

Answer:

bottom right is the answer i think

Answer:

translation

i just got done learning about this a couple of weeks ago

Standard deviation is a measurement of a collection of values' variance or dispersion. The standard deviation of the data set is 2.474.

Step 1: Find the mean

Step 2: Find each score’s deviation from the mean

Step 3: Square each deviation from the mean

Step 4: Find the sum of squares

Step 5: Apply the formula

[tex]SD = \sqrt{\dfrac{\sum(x_i-\bar{x})^2}{n}}[/tex]

The data set that is given to us is {1, 4, 2, 2, 8, 7, 3}, now use the steps to calculate the standard deviation.

Step 1: Find the mean

The mean of the given data set can be written as,

[tex]Mean, \mu=\dfrac{1+4+2+2+8+7+3}{7} = 3.857[/tex]

Step 2: Find each score’s deviation from the mean

1 - 3.857 = -2.857

4 - 3.857 = 0.143

2 - 3.857= -1.857

2 - 3.857= -1.857

8 - 3.857 = 4.143

7 - 3.857 = 3.143

3 - 3.857 = -0.857

Step 3: Square each deviation from the mean

-2.857² = 8.162

0.143² = 0.02

-1.857² = 3.447

-1.857² = 3.447

4.143² = 17.165

3.143² = 9.877

-0.857²= 0.735

Step 4: Find the sum of squares

8.162+0.20+3.447+3.447+17.165+9.877+0.735 = 42.857

Step 5: Apply the formula

[tex]SD = \sqrt{\dfrac{\sum(x_i-\bar{x})^2}{n}}\\\\SD = \sqrt{\dfrac{42.857}{7}} \\\\SD= 2.474[/tex]

Hence, the standard deviation of the data set is 2.474.

Learn more about Standard Deviation:

https://brainly.com/question/12402189

Total amount saved in 1st case :

[tex]S_1=400+20t_1[/tex]

Total amount saved in 2nd case :

[tex]S_2=100+40t_2[/tex]

( Here [tex]t_1 \ and\ t_2[/tex] are number of months )

Let, after x months the amount saved in both cases is same.

So,

[tex]S_2=S_1\\\\100+40x=400+20x\\\\20x = 300\\\\x = 15\ months[/tex]

Amount saved :

[tex]S_1=400+20(15) =\$ 700[/tex]

[tex]S_2=100+40( 15)= \$700[/tex]

Hence, this is the required solution.

Answer:

1/3

Step-by-step explanation:

5/6 - 1/2

note that you could also write 1/2 as 3/6 since when divided you get half once again .

5/6- 3/6 = (5-3)/6= 2/6 = 1/3

Answer:

The answer is

[tex] \huge \frac{1}{3} [/tex]

Step-by-step explanation:

[tex] \frac{5}{6} - \frac{1}{2} \\ [/tex]

To solve this first find the common denominator

From the question the common denominator is 6

So we have

[tex] \frac{5}{6} - \frac{1}{2} = \frac{5 - 3}{6} = \frac{2}{6} = \frac{1}{3} \\ [/tex]

We have the final answer as

[tex] \frac{1}{3} \\ [/tex]

Hope this helps you

Answer and explanation:

The two events of choosing jolly ranchers from each bag, first and second are independent events so the probability of first event AND second event will be multiplied

First bag has 4 red 2 green and one blue

Second bag has 4 red and 2 orange

what is the probability that he would choose a purple jolly rancher from the first bag and a red jolly rancher from the second

Probability = number of favourable outcomes /total number of favourable outcomes

The first bag does not have a purple jolly rancher and so probability is zero

the second bag's probability of choosing a red jolly rancher =4/6

probability of choosing a purple jolly rancher from first bag and red jolly rancher from second bag

=0*4/6=0

Answer=0

Answer: 5 pencils left over

Step-by-step explanation:so 133 times 15 is 1995 and you can’t add 15 more to that so you’ll have 5 left over

Answer:

133

Step-by-step explanation:

Answer:

1∶ 4

explanation

Answer:

Step-by-step explanation:

2x-2+2=12+2

= 2x+0=14

= 2x=14

= X=14÷2

= X=7

Thank you ☺️☺️☺️☺️

Answer:

14,579.76

Step-by-step explanation:

New value =

16,855.21 - Percentage decrease =

16,855.21 - (13.5% × 16,855.21) =

16,855.21 - 13.5% × 16,855.21 =

(1 - 13.5%) × 16,855.21 =

(100% - 13.5%) × 16,855.21 =

86.5% × 16,855.21 =

86.5 ÷ 100 × 16,855.21 =

86.5 × 16,855.21 ÷ 100 =

1,457,975.665 ÷ 100 =

14,579.75665 ≈

14,579.76

Dividing 6x^2 + 26x^2 + 23x + 5 by 3x + 1 using the long division involves the use of groups or parts

The result when 6x^2 + 26x^2 + 23x + 5 is divided by 3x + 1 is 2x^2 + 8x + 5 with no remainder

The dividend is given as:

6x^2 + 26x^2 + 23x + 5

And the divisor is 3x + 1

Divide 6x^3 by 3x:

Result = 2x^2

Multiply 2x^2 by 3x + 1

=> 6x^3 + 2x^2

Subtract 6x^3 + 2x^2 from 6x^3 + 26x^2 + 23x + 5

=>  24x^2 + 23x + 5

Divide 24x^2 by 3x:

Result = 8x

Multiply 8x by 3x + 1

=> 24x^2 + 8x

Subtract 24x^2 + 8x from 24x^2 + 23x + 5

=> 15x + 5

Divide 15x by 3x:

Result = 5

Multiply 5 by 3x + 1

=> 15x + 5

Subtract 15x + 5 from 15x + 5

=> 0

Write out the sum of the results

Result = 2x^2 + 8x + 5

Hence, the result when 6x^2 + 26x^2 + 23x + 5 is divided by 3x + 1 is 2x^2 + 8x + 5 with no remainder

See attachment for the long division process

Read more about long division at:

https://brainly.com/question/25289437

Answer:

B

Step-by-step explanation:

3/8 is equal to 0.375, also known as 37.5%.

The experimental probability (as a percent) that she will hit the ball next is 37.5%. Hence, option B is the right choice.

The experimental probability of an event occurring is the number of times it happened during the experiment as a ratio to the number of times the experiment was run.

In the question, we are given that Sarah hit the ball 3 times out of the 8 times.

We are asked to find the experimental probability (as a percent) that she will hit the ball next.

As we know, the experimental probability of an event occurring is the number of times it happened during the experiment as a ratio to the number of times the experiment was run.

∴ The experimental probability = The number of times Sarah hit the ball/The number of times she experimented = 3/8

or, The experimental probability = (3/8)*100 % = (3*25)/2 % = 75/2 % = 37.5%.

∴ The experimental probability (as a percent) that she will hit the ball next is 37.5%. Hence, option B is the right choice.

Learn more about the experimental probability at

https://brainly.com/question/8652467

#SPJ2

Answer:

12

Step-by-step explanation:

Answer:

[tex]12.6 + b = 15.7[/tex]

[tex]b = 3.1[/tex]

Step-by-step explanation:

Given

[tex]Perimeter: 2a + b = 15.7[/tex]

[tex]a = 6.3[/tex]

Required

Which equation models b

Substitute 6.3 for a

[tex]2a + b = 15.7[/tex] becomes

[tex]2 * 6.3 + b = 15.7[/tex]

[tex]12.6 + b = 15.7[/tex]

Solve for b

[tex]b = 15.7 - 12.6[/tex]

[tex]b = 3.1[/tex]

Answer:

12.6 + b = 15.7

Step-by-step explanation:

Answer:

C) (0, 2)

Step-by-step explanation:

The y-intercept is the y value when x = 0.

Another way to reword that is when the graph crosses the y-axis.

We see from the graph that it crosses the y-axis at 2. Therefore, our y-intercept is (0, 2).

Answer:

Step-by-step explanation:

A two-way frequency table for these 82 students is shown in the table attached below.

A two-way frequency table can be defined as a table that is used for the graphical representation of frequencies or relative frequencies that are associated with two (2) categorical variables.

This ultimately implies that, a two-way frequency table is mainly used to show, analyze, and examine the relationships between two (2) categorical variables.

Generally, one of the two (2) categorical variables is represented by rows while the other is represented by columns.

Read more on two-way frequency here: https://brainly.com/question/20744563

Answer:

The volume of the circle is 21

Step-by-step explanation:

The volume of rectangular is 60