Evaluate the expression 2(8 − 4)2 − 10 ÷ 2 please help

Answers

Answer 1

Answer:

11

Step-by-step explanation:

Answer 2

Answer:

11

Step-by-step explanation:

2(8-4)2 - 10 divided by 2 = 11


Related Questions

Andy painted 400 square feet in 3 hours.how long will it take him to paint 720 square feet

Answers

Answer:

324 minutes or 5.4 hours

Step-by-step explanation:

400/3 = 133.333

133.333/60 = 2.2222

It took him one minute to paint 2.2222 square feet

720/2.2222 = 324 minutes

324/60 = 5.4 hours

Answer:

It will take Andy 5 hours and 24 minutes to paint 720 sq. ft.

Step-by-step explanation:

Since he painted 400 sq. ft. in 3 hours, then do 400/3 to get 133.33... sq. ft per hour. Then, do 720 / 133.33... to get 5.40000000001 hours taken. The 5 represents 5 hours, and the .4 represents 24 minutes (because 60 x .4 = 24).

Overall, you get 5 hours and 24 minutes of time to pain 720 sq. ft.

Central High School is having their annual spaghetti dinner tomorrow evening, so a team of volunteer cooks is busy preparing for the event. They estimate that each of the 200 guests will eat 1.5 cups of tomato sauce. If the cooks already made 6 gallons of tomato sauce yesterday, how many gallons do they have to make today?
Hint: There are 16 cups in 1 gallon.

Answers

Answer:

The answer is 12.75 gallons.

Step-by-step explanation:

What I did to figure this out is I multiplied 200 x 1.5 to figure how many cups there is total. Then I converted the cups to gallons and subtracted 6. I got 12.75 gallons of tomato sauce.


Select the statement that accurately describes the following pair of
triangles

Answers

Answer:

  5.  Triangle UVT ~ ∆RSQ by SSS

Step-by-step explanation:

The ratios of side lengths, shortest to longest are ...

  VT : TU : UV = 42 : 70 : 84 = 3 : 5 : 6

  SQ : QR : RS = 15 : 25 : 30 = 3 : 5 : 6

Side lengths are proportional, so ∆UVT ~ ∆RSQ.

__

The triangle names need to be chosen so the sides are in the same order. Here UV and RS correspond, as do VT and SQ. That eliminates all but one answer choice.

In your own words, describe the difference between a dilation and a stretch. *

Answers

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size. A dilation that creates a larger image is called an enlargement. A dilation stretches or shrinks the original figure.

Wrote the slope intercept form of the equation for the line

Answers

Answer:

It would be the second question,

Step-by-step explanation:

y 7/8 x + 3/2

Evaluate the expression 2(8-4) - 10 ÷ 2

Answers

3.
According to the order of operations (PEMDAS), parentheses come first. Therefore, you solve 8-4 first; your answer is 4. Then you use multiplication, so you solve 4 x 2; that gives you 8. Afterward, division has a higher priority than subtraction, so you divide 10 by 2. You terminal operation would be 8-5; your final answer is 3.

-4x+ 7x + 3 ? Simplify algebraic expressions

Answers

3(x+1) or simplified 3x+3

Answer:

3x+3

Step-by-step explanation:

Add -4x + 7x.

what is the tangent ratio for a

Answers

Answer:

2/3

Step-by-step explanation:

To find the tangent ratio of angle A we write the ratio of opposite side to adjacent side.

Which of the number sentence is true?Justify with reasons. 3/10 of 50 = 50% of 3 3% of 50 = 6% 100 50 divide by 30 = 30 divide by 50 3/10 multiply by 50 = 5/10 multiply by 30

Answers

True: 3% of 50 = 6% of 100
50/100 = 1/2 3/6 = 1/2

Please help- Which is NOT equivalent to this expression? 3(52+15)

Answers

Answer: The last one  15[tex]g^{2}[/tex] +15g

Step-by-step explanation:

The last one , is not equivalent  because after simplifying the expression,  you will get  15g^2 + 45g   and the last one doesn't match to it.

Answer:

15g^2 +15g

Step-by-step explanation:

all the others are equal to 15g^2 + 45g aka 3(52+15)

how do you solve this system of equation?
2x+4y=-4
3x + 5y =-3

Answers

Answer:

x = 4

y = -3

Step-by-step explanation:

We can use substitution, elimination, or graphically.

Step 1: Rearrange first equation

2x + 4y = -4

2x = -4 - 4y

x = -2 - 2y

Step 2: Rewrite systems of equations

x = -2 - 2y

3x + 5y = -3

Step 3: Substitution

3(-2 - 2y) + 5y = -3

-6 - 6y + 5y = -3

-6 - y = -3

-y = 3

y = -3

Step 4: Find x using y

2x + 4(-3) = -4

2x - 12 = -4

2x = 8

x = 4

Graphically:

Use a graphing calc and analyze where the 2 lines intersect.

is k=3 a reduction or enlargement (dilation)

Answers

Answer:

It is an enlargement because k=3 is larger than 1. Anything that equals less than one (ex. k=0.25) would be a reduction.  

Step-by-step explanation:

What is the equation for the line through P that is parallel to L and perpendicular to L. P(0,0), L:y=-x+2

Answers

Answer:

A. The equation of the line parallel to line L is y = – x

B. The equation of the line perpendicular to line L is y = x

Step-by-step explanation:

We'll begin by calculating the slope of line L.

This can be obtained as follow:

y = –x + 2

Comparing the above equation with:

y = mx + c

We can see that the slope (m) = –1.

Therefore, the slope of line L is –1

A. Determination of the equation of the line parallel to line L. This is illustrated below:

When two lines are parallel, their slope (m) is equal i.e

m1 = m2

m1 = – 1

– 1 = m2

This means that the slope of the line parallel to line L is –1

Now we shall determine the equation of the line parallel to line L as follow:

Coordinate = (0, 0)

x1 coordinate = 0

y1 coordinate = 0

Slope (m) = –1

y – y1 = m(x – x1)

y – 0 = –1 (x – 0)

y = – x

Therefore, the equation of the line parallel to line L is y = – x

B. Determination of the equation of the line perpendicular to line L. This is illustrated below:

When two lines are perpendicular, the product of their slope (m) is –1 i.e

m1 • m2 = – 1

but m1 = –1

–1 x m2 = – 1

Divide both side by – 1

m2 = –1/–1

m2 = 1

Now, we shall determine the equation of the line perpendicular to line L as follow:

Coordinate = (0, 0)

x1 coordinate = 0

y1 coordinate = 0

Slope (m) = 1

y – y1 = m(x – x1)

y – 0 = 1 (x – 0)

y = x

Therefore, the equation of the line perpendicular to line L is y = x

Line g passes through the points (-2.6,1) and (-1.4,2.5), as shown. Find the equation of the line that passes through (0,-b) and (c,0).

Answers

Answer:

y=-1.25x-4.25

Step-by-step explanation:

I had the same assignment.

The equation of the line that passes through (0,-b) and (c,0) is

7y - 8x = 28

The formula for calculating the equation of a line in point-slope form is expressed as:

[tex]y-y_0=m(x-x_0)[/tex]

m is the slope of the line

(x0, y0) is any point on the line

Given the coordinate points (0, -b) and (c, 0)

Since b  = -4 and c = -3.5

The required coordinate  points will be (0, 4) and (-3.5, 0)

Substitute the given parameters into the given formula for calculating the slope:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{0-4}{-3.5-0} \\m = \frac{4}{3.5}\\m = 8/7[/tex]

Substitute m = 8/7 and the point (0, 4) into the expression [tex]y-y_0=m(x-x_0)[/tex]

[tex]y-4=\frac{8}{7} (x-0)\\7(y-4)=8x\\7y-28=8x\\7y-8x=28[/tex]

Hence the equation of the line that passes through (0,-b) and (c,0) is

7y - 8x = 28

Learn more here: https://brainly.com/question/17003809

which is a better price: 5 for $1.00, 4 for $0.85, 2 for $0.25, or 6 for $1.10?

Answers

Answer:

2 for $0.25

Step-by-step explanation:

1.10/ 6= .20 (rounding)

1.00/ 5= .20

0.85/ 4= .21

0.25/ 2= .13 (rounding)

Simplify the radical. 2/√6 A)√12/6 B)√3/3 C)√6/3 D)√2

Answers

Answer: Choice C)  [tex]\frac{\sqrt{6}}{3}[/tex]

This is the square root of 6 over 3. The 3 is not inside the square root.

========================================================

Explanation:

sqrt = square root

We have sqrt(6) in the denominator. Your teacher wants you to rationalize the denominator, which means to take out the square root and instead have an integer here.

To achieve this, we multiply top and bottom of the fraction by sqrt(6) like so

[tex]\frac{2}{\sqrt{6}}\\\\\frac{2*\sqrt{6}}{\sqrt{6}*\sqrt{6}}\\\\\frac{2\sqrt{6}}{\sqrt{6*6}}\\\\\frac{2\sqrt{6}}{\sqrt{36}}\\\\\frac{2\sqrt{6}}{6}\\\\\frac{2\sqrt{6}}{2*3}\\\\\frac{\sqrt{6}}{3}\\\\[/tex]

Therefore,

[tex]\frac{2}{\sqrt{6}}=\frac{\sqrt{6}}{3}\\\\[/tex]

12. Mr. Gooding works at the local appliance store. His base salary is $360a week plus an
1/6
additional of his sales. If his total salary for the week is $570, what were his total sales for that
week?

Answers

Answer: total sales $1260

Step-by-step explanation:

GIVEN

Base salary: $360

Additional salary: 1/6 of total sale

Total salary: $570

-------------------------------------------------------

Let x= the total sales

360+(1/6)x=570

Subtract 360 on both sides

(1/6)x=210

Divide 1/6 on both sides

x=210 ÷ (1/6)

Turn division of fraction into multiplying its reciprocal

x=210 × 6

Simplify

x=1260

Hope this helps!! :)

Please let me know if you have any question

Which equation demonstrates the multiplicative identity property? (negative 3 + 5 i) + 0 = negative 3 + 5 i (negative 3 + 5 i ) (1) = negative 3 + 5 i (negative 3 + 5 i) (negative 3 + 5 i) = negative 16 minus 30 i (negative 3 + 5 i) (3 minus 5 i) = 16 + 30 i

Answers

Answer:

  (-3 + 5 i) (1) = (-3 + 5 i)

Step-by-step explanation:

The multiplicative identity property says you can multiply anything by 1 without changing its value. That is demonstrated by the equation above.

Answer:

EDGE2020 is B

Monica needs to gain 10 pounds in order to be able to donate blood. She gained 5/6 pound the first week, 3/4 pound each of the next two weeks, 3/4 pound the fourth week, and lost 3/8 pound the fifth week. How many more pounds does she still have to gain?

Answers

Answer: [tex]7\dfrac{7}{24}\text{ pounds}[/tex]

Step-by-step explanation:

Given, Monica gained weight in first week = [tex]\dfrac{5}{6}[/tex] pounds

She gained weight in second week = [tex]\dfrac34[/tex] pounds

She gained weight in third week = [tex]\dfrac34[/tex] pounds

She gained weight in fourth week = [tex]\dfrac34[/tex] pounds

She lost weight in fifth week = [tex]\dfrac38[/tex] pounds

Now, net weight she gained= [tex]\dfrac{5}{6}+\dfrac34+\dfrac34+\dfrac34-\dfrac{3}{8}[/tex]

[tex]=\dfrac{20+18+18+18-9}{24}\\\\=\dfrac{65}{24}\\\\=2\dfrac{17}{65}\text{ pounds}[/tex]

She need to gain [tex]10-\dfrac{65}{24}=\dfrac{240-65}{24}=7\dfrac{7}{24}\text{ pounds}[/tex]

Hence, she still have to gain [tex]7\dfrac{7}{24}\text{ pounds}[/tex]more.

PLEASE HELP ON 13 TO BE MARKED THE BRAINLIEST

Answers

Answer:

  D) 10000 feet

Step-by-step explanation:

We are told that for some actual altitude, the reading is ...

  30,000 ft = (1 -25%)altitude = 0.75×altitude

Multiplying by 4/3, we have ...

  (4/3)(30,000 ft) = altitude = 40,000 ft

To get to 30,000 ft, the plane must descend ...

  40,000 ft -30,000 ft = 10,000 ft

There are 7 students in a class. If there are 3 seats in the front row, how many ways can the students sit in the front row, assuming there are no empty seats?

Answers

Answer:

35 different ways

Step-by-step explanation:

Since there are 7 students in a classroom to fill a front row containing 3 seats, we will apply the combination rule since we are to select 3 students from the total number of 7 students in the class.

In combination, if r objects are to be selected from a pool of n objects, this can be done in nCr number of ways.

nCr = n!/(n-r!)r!

Selecting 3 students from 7 students to fill the seats can therefore be done in 7C3 number of ways.

7C3 = 7!/(7-3)!3!

7C3 = 7!/(4)!3!

7C3 = 7*6*5*4!/4!*3*2

7C3 = 7*6*5/6

7C3 = 7*5

7C3 = 35

Hence there are 35 different ways that the student can sit in the front assuming there are no empty seats.

Rivika used the last four digits of her telephone number,1048, followed by its prime factorization to create her email password Determine her password

Answers

Answer: I'm pretty sure I can help, just give me like 3 minutes..

-Angie

Answer:

Her password is 1048222131.

Like Angie said, 1048 * 2* 2 * 2 * 131.

But before that you need to decompose 1048  into its prime factors.

The Prime Factorization is:

2 x 2 x 2 x 131

In Exponential Form:

23 x 1311

CSV Format:

2, 2, 2, 131

All Factors of 1048:

1, 2, 4, 8, 131, 262, 524, 1048

Prime Factors Tree

 1048      

 /  \      

2   524    

   /  \    

 2   262  

     /  \  

   2   131

There you go!  If you need more help just reach out to me!

1
Solve for x: (2x - 1) + (4x + 9) = 32 m
O x = 40/6
O x = 4
x = 22/6
Other

Answers

Answer:

[tex]x = \frac{40}{6} [/tex]

Step-by-step explanation:

To solve the equation

(2x - 1) + (4x + 9) = 32

First of all remove the parenthesis

That's

2x - 1 + 4x + 9 = 32

Simplify

We have

6x - 8 = 32

Add 8 to both sides

Thats

6x - 8 + 8 = 32 + 8

6x = 40

Divide both sides by 6

That's

[tex] \frac{6x}{6} = \frac{40}{6} [/tex]

We have the final answer as

[tex]x = \frac{40}{6} [/tex]

Hope this helps you

Answer:

2x -1 + 4x +9 =32=) 6x +8 =32=) 6x ==32-8=) 6 x = 24=) x = 24/6

=) x = 4

A concert hall has 1540 seats.
Calculate the number of people in the hall when 55% of the seats are occupied

Answers

If 55% of the 1540 seats were filled there would be 847 occupied seats.

Identify as either rational or irrational and approximate to the tenths place.

Answers

Answer:

to the tenth place =1.732

Scientists believe there is a link between ambient temperature and damage to a head gasket on a car. Using the provided information, draw a scatterplot of the data. Based on the information, what might the approximate damage index be if the temperature was 10° Celsius? A) 5 B) 7 C) 10 D) 13

Answers

Answer:

D) 13

Step-by-step explanation:

The lower temperatures have a negative correlation so the lower the temperature the higher the damage index. Therefore a temperature of 10° Celsius should have a damage index higher than that of 12° Celsius so the only option is 13.

how many factors of 10 does 1000 have?

Answers

Answer:it has 16

Step-by-step explanation:

The answer of your question is 16 factors

Use the table below. Find the total cost of 2 salads, 1 sandwich, and 2 drinks. Use mental math. Lunch Menu Salad $6.25 Sandwich $5.50 Drink $2.75

Answers

Answer:

12.50+5.50+5.50= 23.50

Step-by-step explanation:

Add it

Please help with this question!!!

Answers

Answer:

A = –3

B = 7

Step-by-step explanation:

Please see attached photo for explanation.

Identifying Steps Involved in Deleting a Column from a Table
Tristan has moved the Television and related equipment Use the drop-down menus to identify the steps
row. Next, he needs to delete the blank row.
involved in deleting the blank row in this scenario.
Use
Percentage
Step 1:
Space cooling
17.5
Step 2
Step 3
Water heating
9.5
Step 4: Click the Delete Row option
9.2
9.1
8.8
Lighting
Space heating
Refrigerators and
freezers
Television and
related equipment
All other uses
5.9
40.0

Answers

1 - C

2 - B

3 - A

Step-by-step explanation:

CBASteps for deleting a column from a table:To delete a table cell, row, or column, perform a right-click.Select Delete Cells from the menu.Select Shift cells left or Shift cells up to erase a single cell.Click Delete the entire row to remove the entire row.Click Delete full column to remove the column.Columns -A column in a relational database is a group of data values of a specific type, one value for each database row. Text values, integers, or even links to operating system files can all be found in columns.

Therefore, the correct answer is as follows:

CBA

Know more about columns here:

https://brainly.com/question/13142932

#SPJ2

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