Mathematics High School

What is the value of this expression?

27+4×(8−4)

Answers

Answer 1

Answer:

43

Step-by-step explanation:

First, you have to find the value inside the parentheses. That would be 8-4, which is 4.

Now, use the rule of Pedmas, or Bedmas, whatever you prefer. That is Parentheses, exponents, multiplication, addition, subtraction. So, now you have the equation:

27 + 4 x 4.

You would multiply before addition, as shown above, so you would get:

27 + 16

which would equal:

43.

Related Questions

Find the area of the circle shown.

Use 3.14
3
.
14
as an approximation for π
π
. Round your answer to the nearest tenth.

Answers

Answer: Area = pie multiplied by radius multiplied by radius (pie × square of radius)

Step-by-step explanation: If you are given diameter, radius will be half of the diameter.

Simply multiply 3.14 by radius squared

Countries that have a low GDP (per capita) are referred to which of the following?
A. Developed
B. Rich
C. More economically developed country (MEDC)
D. Developing

Answers

The only possible answer should be D. (Developing)

Help will give brainlest! Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the quadrilateral.

Answers

Answer:

Angle a=92, angle c=88, angle b=100, angle d=80

Step-by-step explanation:

The length of a rectangle is 4 cm longer than its width.
If the perimeter of the rectangle is 52 cm, find its length and width.

Answers

Answer: L is 15 and w is 11

Step by step
2(w+4)+2w=52
2w +8 +2w=52
4w +8=52
4w=52-8
4w=44
W=11
L=11+4=15

What are the correct answers? Please, explain how to do it please.

Answers

Answer:

a

Step-by-step explanation:

The answer for the question is A

The speed of a cheetah is 65 miles per hour and the speed of a horse is 50 miles per hour. Rounding to the nearest tenth, how many times as fast is the cheetah as compared to the horse?


A. ) 1. 8

B. ) 1. 3

C. ) 0. 8

D. ) 0. 5

Answers

Answer:

B

Step-by-step explanation:

Just do the cheetah's speed divided by the horse's speed:

65/50

and thats your answer

I NEED ANSWERS NOW!!! PLEASE

Answers

Answer:

a square angle

Step-by-step explanation:

because its a square agnle me barin is right :>

Answer:

1. Police station & mall

2. City hall & market

3. Church & park

4. Hospital & school

5. Park & city hall

6. Church & market

7. Police station & hospital

8. School & mall

9. City hall & mall

10. Church & hospital

See the image below for an illustration of each angle type.

Hope this helps!

HELP ME PLEASE THERES PICTURES

Answers

Answer:

a=14/50 or 28%/0.28

b = the complement would be everything but b

c=36/50

they are reciprocals they are opposites

Step-by-step explanation:

What percent of children who have a birthday party at home are between 5
and 10?

Answers

12 kids between the ages of 5 and 10 have birthday partys at home. A total of 65 kids have birthday party’s at home.
12/65≈18%

The percentage of children who have a birthday party at home between 5

and 10 is 3.69 %

What is a percentage?

The percentage means the required value out of 100.

It is calculated by dividing the required value by the total value and multiplying by 100.

The percentage change is also calculated using the same method.

In percentage change we find the difference between the values given.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

We have,

Total number of children = 325

The number of children that have parties at home between the 5 - 10 age group.

= 12

Now,

The percentage of children who have a birthday party at home between 5

and 10.

= 12/325 x 100

= 3.69 %

Thus,

The percentage of children who have a birthday party at home between 5

and 10 is 3.69 %

Learn more about percentages here:

https://brainly.com/question/11403063

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Solve the right triangle. Round decimal answers to the nearest tenth.
MK= 8
40°

Answers

All of it is 8 because sides are all equal

on a number line 48 to 49 would 48 3/5 be the closest to 49

Answers

The answer is Closer to 49

What is the area of the shaded region?​

Answers

Answer:

Area = 84.1

OR Exact A = 392 - 98pi

Step-by-step explanation:

Calculate the area of the rectangle and subtract the area of the two circles. See image.

Find the surface area of the prism.

Answers

The prism shown consists of 6 parallelograms and the surface area of the prism shown in the figure is 48 square inches.

How to calculate the surface area of a figure

The surface area is equal to the sum of all the areas of the sides of the figure.

The figure shown consists of 6 parallelograms. The area for calculating the area of a parallelogram is expressed as:
Area = Base * Height

Surface area = 4(2*4) + (4 * 4)
Surface area = 4(8) + 16
Surface ares = 48 square in

Hence the surface area of the prism is 48 square inches.

Learn more on surface area of prism here: https://brainly.com/question/1297098

3. There are 9 tables in the cafeteria. Each table has the same number of chairs. If there is a tota of 171 chairs, how many chairs are at each table a. 16 b. 17 C. 18 d. 19 ​

Answers

Answer:

d. 19

Step-by-step explanation:

n.o of tables = 9

total n.o of chairs = 171

if there is equal n.o chairs in each table then,

171/9

=19

The answer is 19 because it is what it is

AC and BD are perpendicular bisectors of each other. Find the perimeter of ADB.

A. 60
B. 52
C. 30
D. 50

Answers

I think it is C. 30
I hope it is right?

I have 35 quarters and dimes in
my pocket. How many of each do I have if I have $5.45??
HELP Me pls

Answers

Answer:

13 Quarters, 22 Dimes

Step-by-step explanation:

.10d + .25q = 5.45

.10 (35 - q) + .25q = 5.45

3.5 - 10q + .25q = 5.45

.25q - .10q = 5.45 - 3.5

.15q = 1.95

q = 13

Plug the value of q to solve for d, or the number of dimes.

d = 35 - q

d = 35 - 13

d = 22

How many three-digit positive integers are there with no repeated digits, if the first digit and the last digit must be odd, but the middle digit can be even or odd

Answers

Answer:
Answer is 160
Step-by-step explanation:
The number of digits that exist is 10: 0,1,2,3,4,5,6,7,8,9
Number of all odd digits is 5 (1,3,5,7,9)
Number of all even digits is 5 (0,2,4,6,8)

We divide the problem into two cases: middle digit is even and middle digit is odd
Now to solve the problem list the digit possibilities for each case:

Case 1: middle digit is odd:
odd odd odd
Number of possibilities for hundreds digit: 5
Number of possibilities for tens digit: 4 (repetition not allowed)
Number of possibilities for unit digit: 3
Number of ways for case 1= 5x4x3=60

Case 2: middle integer is even:
odd even odd
Number of possibilities for hundreds digit : 5
Number of possibilities for tens digit: 5
Number of possibilities for unit digit: 4
Number of ways for case 2= 5x5x4=100

TOTAL number of ways= 60+100=160
HOPE THIS HELPS :)

determine the general solution of -4sinx = 5cosx​

Answers

Step-by-step explanation:

Divide both sides by cosine to get:

[tex] - 4tan(x) = 5[/tex]

Divide both sides by -4 to get:

[tex]tan(x) = - \frac{5}{4} [/tex]

Take the arctangent of both sides to get:

[tex]x = arctan( - \frac{5}{4} )[/tex]

Plus any integer rotation of pi (180 degrees)

A seamstress needs to cut 15-inch pieces of ribbon from a roll of ribbon that is 9 feet in length. What is the greatest number of 15-inch pieces the seamstress can cut from 5 of these rolls of ribbon

Answers

Answer:

35 strips :)

Step-by-step explanation:

1 foot; 12 inches

Now lets solve!!

12 x 9 = 108

Now we must divide :)

108/15 = 7

Since she has 5 rolls, we need to multiply 1 more time :)

7 x 5 = 35

Have an amazing day!!

Please rate and mark brainliest!!

Answer:

35

Step-by-step explanation:

1 foot = 12 inches

so (multiply both by 9)

9 feet = 108 inches

108 divided by 15 = 7.2

the .2 part can't be used, so each roll can make 7 pieces of ribbon

Theres 5 rolls of ribbon so multiply 7 by 5 which is 35

Line J K is dilated by a scale factor of n with the origin as the center of dilation, resulting in the image J' K'. The slope of J K is m. If the length of J K is l, what is the length of J' K'?
A. m*n*l
B. (m+n)*l
C. m*l
D. n*l

Answers

Answer: C

Step-by-step explanation:

The graph shows the population of a city n months after the establishment of a new automobile plant in the city.

Answers

Answer: for sure the answer is increased rapidly

Step-by-step explanation:

The population of the city increased rapidly for the first four months and then slowly approached 7000 people.

What is Graph?

A graph contains data of which input maps to which output.

Analysis of this leads to the relations which were used to make it.

If we know that the function crosses x axis at some point, then for some polynomial functions, we have those as roots of the polynomial.

WE have given the  graph shows the population of a city n months after the establishment of a new automobile plant in the city.

We can see that at 4000 people, the graph increases and then become constant at the rate of 7000 people.

So we can conclude that the population of the city increases rapidly for the first four months and then slowly approached 7000 people.

Learn more about finding the graphed function here:

https://brainly.com/question/27330212

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give a formula for the perimeter of a rectangle. when might you want to measure a perimeter?​

Answers

Answer: perimeter = sum of all side lengths

Step-by-step explanation:

To measure the amount of tape needed to section off a crime scene.

Hope This Helped!

image below ill give branliest

Answers

Answer:

It is(-1,5)

Step-by-step explanation:

You just divide the (-3,15) by 3 and you get your answer.

Answer:

(-1 , 5)

Step-by-step explanation:

Find the coordinates of the point after dilation:

A (-1,5) and B (-3,4)

what is the volume of a cylinder,in cubic inches, with a height of 16 inches and base diameter of 4 inches? round to the nearest tenths place.

Answers

Answer:

201.06 in^3

Step-by-step explanation:

Volume of cylinder =  pi r^2 h

                                 = pi (2)^2 * 16  in^3           ( r = d/2 = 4/2 = 2)  

Giving Brainiest and 60 points! :))

Answers

Answer:

Vertical angles! Hope this helped!<3

Answer:

Vertical Angles

Step-by-step explanation:

Adjacent Angles are adjacent to each other and share the same side.

Complementary Angles add up to 90°

Vertical Angles are similar angles on opposite sides of each other

Reflex Angles are angles that are over 180°

Therefore Vertical Angles is the answer

Please help me wit this math problem! Will give brainliest!! :)

Answers

Step-by-step explanation:

x² x<1

—x²+4x—1 1≤x≤3

x—3 x>3

feel free to leave a comment if still something's confusing.

I need this ASAP plss

Answers

Reflexive property of congruence

It denotes to the fact that every geometrical shape,figure is congruent to itself

Here AC is common side

So AC [tex]\cong[/tex] AC

AC is congruent to itself

Option A

Solve for X question number 15

Answers

You have to do the square root of 144.
X=12.

The following scatter plot shows the correlation between the number of hours twelve teenagers spent in the mall and the number of dollars they spent on food or drinks while at the mall. Use the line of best fit to estimate how much money a teenager will spend on food if he or she is at the mall for three hours.

$9

$11

$7

$5

Answers

The equation of the line of best fit is an illustration of a linear function

The teenager would spend $9 on food if he or she is at the mall for three hours.

How to determine the amount spent on food?

The equation of the line of best fit is given as:

y = 2x + 3

When the teenager spends 3 hours in the mall, it means that:

x = 3

So, we have:

y = 2 * 3 + 3

Evaluate the product

y = 6 + 3

Evaluate the sum

y = 9

Hence, the teenager would spend $9 on food if he or she is at the mall for three hours.

Read more about line of best fit at:

https://brainly.com/question/17261411

Which describes a transformation using rotation?
A.
move points perpendicularly across a specified line a distance equal to its original distance from the specified line
B.
move points along a circular arc with a specified center through a specified angle
C.
move points a specified distance along a line parallel to a specified line
D.
move points closer or further from a specified point by a specified magnitude

Answers

B.

Good luck with your studies!
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