Mathematics High School

Kalyue drew a rectangle with a perimeter of 20 inches. Then he tried to draw a square with a perimeter of 20 inches. What are the dimensions of square with a perimeter of 20 inches?

Answers

Answer 1

Step-by-step explanation:

a square has 4 identical sides.

so, when you have to "walk" around the perimeter of a square you have to go 4 times the same distance.

therefore

20 = 4×side length

side length = 20/4 = 5 in

it is a 5 in × 5 in square.

FYI a rectangle has 2 pairs of sides that are equally long inside their pair.

and so you have in this case a perimeter of

2×6 + 2×4 = 12 + 8 = 20 in

Related Questions

Out of 40 girls, 10 girls can cook
well. What fraction of girls can
cook well?

Answers

Answer:

1/4

Step-by-step explanation:

10 girls can cook well out of a total of 40 girls.

this means 10/40 girls can cook well, simplified fraction by dividing top and bottom by 10, 1/4 girls can cook well

Answer:

1/4

Step-by-step explanation:

When you simplify 10/40 you get 1/4

What is 10+10-4x3=??
I will give a free brainliest to the first person to respond to this question :)

Answers

Answer:

Step-by-step explanation:

PEMDAS

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

[tex]10 + 10 - 4 \times 3 \\ 4 \times 3 = 12 \\ 10 + 10 - 12 \\ 10 + 10 = 20 \\ 20 - 12 = 8[/tex]

Answer:

Step-by-step explanation:

4x3 first = 12

then just do left to right

10+10=20

20-12=8

is 47°, what is the measure of Z3?

Ο Α. 1536
O B. 43
O C. 133
O D. 47°

Answers

Answer:

<3=C. 133

Step-by-step explanation:

Well, angle 2 and angle 3 are corrisponding angles, meaning that they are on the same line, and a line is always equal to 180, and 47 degrees is a part of that line, and you need the other part of that line for angle 3, so you simply subtract 180-47=133 degrees

For a 12-month period, the numbers of inches of snow per month in Chicago
were:
11, 10, 6, 1,0,0,0,0,0, 1, 2, 9
What is the range of the data values?
O A. 6.
B. 1
C. 11
D. 10

Answers

Answer:

C. 11

Step-by-step explanation:

Calculating range is subtracting the highest data value(11) from the lowest data value(0)

11 - 0 = 11

pls help T-T
i need a solution too

Answers

Answer:

I do not know it very well

Step-by-step explanation:

Answer:

b. 60°

Step-by-step explanation:

The exterior angles of a convex polygon total 360°. When the polygon is a regular hexagon, there are 6 congruent exterior angles.

Each exterior angle has a measure of ...

x° = 360°/6 = 60°

IMAGE IS DOWN BELOW
SOMEONE PLEASE HELP ME WITH THIS
ILL GIVE YOU BRAINLIST ANSWER

Answers

Answer:

13.0 cm

Step-by-step explanation:

We proceed by Pythagorean Theorem:

[tex]a^2+b^2=c^2[/tex]

We are given a = 1 and b = 13

[tex]1^2 +13^2 =c^2\\c=\sqrt{170}\\[/tex]

c ≈ 13.0

This is the answer rounded to the nearest tenth.

13.0
Use the Pythagorean theorem
Round to the nearest tenth

Suppose a city with population 100,000 has been growing at a rate of 5% per year. If this rate continues, find the population of this city in 21 years.

Answers

Answer:

205,000

Step-by-step explanation:

(100,000*0.05) *21 +100,000

Tony bought a printer on sale for 45. The original price was 60 . What is the percent decrease of the price of the load ?

Answers

Answer:

25%

Step-by-step explanation:

STEP 1:

Find the difference between the two values

e.g 60-45=15

STEP 2

Divide the difference by the original value

e.g 15/60=1/4

STEP 3

Convert 1/4 into a percentage

e.g 1/4=0.25=25%

Can you answer this, as it is greatly appreciated

Answers

Answer:

See below

Step-by-step explanation:

Let the amount of pecans is x pounds and cashew is y pounds.

The inequalities according to the question are:

x + y ≥ 36x + 8y ≤ 24

The solution of the system is attached as a graph below.

Possible combinations are:

(2, 1) or (1, 2)

Answer:

3 pounds of pecans and 0.5 pound of cashews

2.5 pounds of pecans and 1 pound of cashews

Step-by-step explanation:

Given information:

Malik can spend no more than $24 to buy pecans and cashews.Malik wants to buy at least 3 pounds of nuts.Cost of pecans = $6 per poundCost of cashews = $8 per pound

Define the variables:

Let x = number of pounds of pecans Malik can buy

Let y = number of pounds of cashews Malik can buy

Create a system of inequalities from the given information:

6x + 8y ≤ 24x + y ≥ 3

Graph the inequalities (see attached)

The possible solutions are any points enclosed by the shaded area where x > 0 and y > 0.

Therefore, two possible combinations are:

3 pounds of pecans and 0.5 pound of cashews2.5 pounds of pecans and 1 pound of cashews

CAN SOMEONE HELP ME PLSSSSSS I ASKED THIS LIKE 3 TIMES BUT NO ONE ANSWERED.THABKYOU!
Determine the area of the park that is not covered by the wading pool.

Answers

Answer:

19.63 m^2

Step-by-step explanation:

This is an Area=pi r^2 equation so it would be 3.14*2.5^2

please help, will give brainliest for accurate answer or explanation!
A high school basketball coach was searching through records and found that the average height of high school basketball players is 73 inches with a standard deviation of 2.1 inches. The distribution of heights is an approximately normal distribution.

a. The typical basketball team usually has around 16 players. Describe the sampling distribution for samples of size n = 16.

b. Is it surprising to find a random sample of size n = 4 to have an average height over 75 inches? Give appropriate statistical evidence

c. Suppose the population described in the problem was clearly NOT normal. Could the question in part (b) still be answered? Explain why it could still be answered. If not, explain why.

Answers

Answer:

The heights of basketball players have an approximate normal distribution with mean, μ = 79 inches and a standard deviation, σ = 3.89 inches.

Step-by-step explanation:

Evaluate -2x^2-4x+3 when x=-2

Answers

Answer:

Step-by-step explanation:

A polynomial is sometimes easier to evaluate if it is first written in Horner form:

-2x^2 -4x +3 = (-2x -4)x +3

For x = -2, this is ...

(-2(-2) -4)(-2) +3 = 0(-2) +3 = 3

Answer:

There are 2 x-intercepts

Step-by-step explanation:

The equation has 2 x variables, so the graph would have 2 x -intercepts.

[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]

Let's use the discriminant method, we have to find discriminant of the given quadratic function, if discriminant is greater than 0, then it has two intercepts, if it is equal to 0, then it has 1 intercepts and if it is smaller than 0, then it has no x intercepts.

[tex]\qquad \sf \dashrightarrow \:D = {b}^{2} - 4ac[/tex]

where, a, b and c are coefficients of x², x and constant term. D = discriminant

[tex]\qquad \sf \dashrightarrow \:D = {( - 30)}^{2} - 4(22 \times 1)[/tex]

[tex]\qquad \sf \dashrightarrow \:D = 900 - 4(22 )[/tex]

[tex]\qquad \sf \dashrightarrow \:D = 900 - 88[/tex]

[tex]\qquad \sf \dashrightarrow \:D = 812[/tex]

Answer: 2.12

Step-by-step explanation: Okay, you first add 2.4+1, which is obviously 3.4.

Then you subtract 5.52 by 3.4.

You should get 2.12.

I hope I helped. <3

Please explain this to me step by step. Thanks!

Answers

Answer:

Step-by-step explanation:

14) Amount in Harper's school lunch account = $ 75

Cos of one meal = $ 3.25

Cost of 'm' meals = 3.25 * m = 3.25m

Balance amount in Harper's account after getting 'm' meals = $ 19.75

Total amount - Cost of 'm' meals = 19.75

75 - 3.25m = 19.75

To find the value of 'm', isolate m. To isolare m subtract 75 from both sides

-3.25m = 19.75 - 75

-3.25m = -55.25

Now divide both sides by (-3.25)

m = -55.25/(-3.25)

m = 17

15) Starting height = 24 ft

Height after t seconds = 4.5*t = 4.5t

To see the river, the drone should reach the height atleast 330 ft above the ground. ⇒ It should be at the height greater than or equal to 330 ft

Initial height + height after 't' seconds ≥ 330

24 + 4.5t ≥ 330

Subtract 24 from both sides

4.5t ≥ 330 - 24

4.5t ≥ 306

Divide both sides by 4.5

t ≥ 306/4.5

t ≥ 68

He will be able to see the river from 68 seconds ( 1 minute 8 seconds) and above.

Answer:

V = 76 ft³

Step-by-step explanation:

We can find the volume of the figure by finding the sum of volume of the small rectangular prism and big rectangular prism.

V of a rectangular prism = length*hight* width

V = V (big rectangular prism) + V (small rectangular prism)

V = (8·4·2) +(3·2·2)

V = 64 + 12

V = 76 ft³

How do we do this? The sub gave us the wrong work and isn’t explaining it! Help please!!!

Answers

Answer:

1) 18b - 3c - 10

2) [tex]1\frac{3}{4}[/tex]g + 7

3) 0.3y

4) -4n - 5

Step-by-step explanation:

1) 16b + 5c - 10 - 8c + 2b

like terms: 16b + 2b = 18b

like terms: 5c - 8c = -3c

like terms: -10

simplified: 18b - 3c - 10

____________

2) 1/2g + 2g - 3/4 g + 7

like terms: 1/2g + 2g - 3/4g

2 1/2 - 3/4

improper fraction > 5/2 > same denom > 10/4

10/4 - 3/4 = 7/4 > mixed number> 1 3/4g

like terms: +7

simplified: 1 3/4g + 7

____________

3) -0.9y + 4.4y - 3.2y

like terms: -0.9y + 4.4y - 3.2y

simplified: 0.3y

____________

4) 4 - 8n + 7n - 3n - 9

like terms: -8n + 7n - 3n = -4n

like terms: 4 - 9 = -5

simplified: -4n - 5

____________

Hi. What's 8.563 + 4.8292?

Answers

Answer:

8.563 + 4.8292 = 13.3922

Step-by-step explanation:

Remember to line up the decimal points and put zeros in any right-hand columns that don't have numbers if necessary (ex: 8.5630 + 4.8292).

Hope this helps!!

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