Mathematics High School

Please Help Im Doing A Test And Really Need The Answer!

Please no fake answer for points

Answers

Answer 1

Answer:

The last one (16+20+3+8)

Step-by-step explanation:

add up all the sides not including the 3 inside

Answer 2

Answer:

(16+20+3+8)

Step-by-step explanation:

The perimeter is the measurement on the outside of the shape.

so (3+16+20+8) = 47

Related Questions

What must be true about two objects of heat is flowing between them?

Answers

Answer:

that must mean that either the objects are giving off heat or the heat from one object is transferring to the air

Step-by-step explanation:

Answer:

The objects must be different temperatures.

Step-by-step explanation:

If anyone could plz help ill really appreciate it

Answers

Answer:

Help with what is it mental help? Or no cause I’ve dealt with that a lot

Step-by-step explanation:

Can someone solve plzzz .

Answers

Answer:

you have to use multiplication maybe division and addition

Step-by-step explanation:

What is the scale factor from 125% to 100%?

Answers

Answer: 4:5

Step-by-step explanation:

Answer:

4:5

Step-by-step explanation:

Korey completely covered a square counter top using 103.5 ftof tile without any overlap.
Which measurement is closest to the side length of this counter top in feet?
10 ft
O 11 ft
O 27 ft
O 55 ft

Answers

Answer:

10 ft

Step-by-step explanation:

10² = 100

11² = 121

Answer: 10 ft

Could someone explain this to me?

Answers

Answer:

B.97

Step-by-step explanation:

Heyy so angle ADC and DAB are supp to one another, thus

83 + DAB = 180 --> subtracting

DAB =97. B

Hope that made sense :)

(6x + 4) - (3x - 2) simplify

Answers

Answer:

9x -2

Step-by-step explanation:

6x + 4 - 3x - 2

6x + 3x +4 - 2

9x -2

Answer:

3x + 4

Step-by-step explanation:

(6x + 4) - (3x - 2) simplify

(6x + 4) - (3x - 2)=

6x + 4 - 3x + 2

3x + 6

BATTERY LIFE The battery life of a certain cell phone starts at 8 hours. The battery life decreases at an annual rate of 30%.

a. Write a function that represents the battery life y after x years.

Answers

Answer:

[tex]y=8(0.7)^x[/tex]

Step-by-step explanation:

Next, the battery life decreases by 30% per year. You didn't state if this is linear or exponential, so I'll assume exponential because linear doesn't make much sense in this case..

For an exponential function, the battery life will be decreasing by 30% over the previous year, not over the original. Decreasing by 30% is multiplying by 70%, or just 0.7.

Exponential form:

[tex]y=a(b)^x[/tex]

where a is the original value and b is the percent change.

In your question:

[tex]y=8(0.7)^x[/tex]

The function that represents the battery life y after x years is y = 8(0.7)ˣ.

What does exponential function ?

A quantity grows (or depreciates) exponentially if the increase (or decrease) in the amount is a multiple of the previous amount.

Now it is given that,

Battery life starts = 8 hours

Annual decrease rate = 30% = 0.30

So, battery life after an year = 100% - 30% = 70% = 0.7

Now if battery life y after x years

Annual decrease rate after x years = (0.7)ˣ

Thus battery life, y = 8(0.7)ˣ

Thus, the function that represents the battery life y after x years is y = 8(0.7)ˣ.

Learn more about exponential functions at

brainly.com/question/11464095

#SPJ2

Please help me. What is 5 3/4 - 2 11/12? I'm almost done for the year

Answers

Answer:

2.83

Step-by-step explanation:

Evaluate each expression for a=7,b=4,and c=-3.

3a-5b =________

7-3a+5a+15 =________

15a^2-17〖bc〗^2 =________

Pls help me

Answers

Answer:

Step-by-step explanation: 3a-5b= 3(7)-5(4)

=21-20

7-3a+5a+15=7-3(7)+5(7)+15

=7-21+35+15

=-14+50

=36

15a^2-17(bc)^2=15(7)^2-17(4)(-3)^2

=105^2-204^2

=210-408

=-198

2x =3 solve for x in this equation

Answers

Answer:

the answer is 3/2

Step-by-step explanation:

2x =3

x= 3/2 when you divide both sides by 2

Answer:

I might be wrong but 1 and 1/2

Step-by-step explanation:

I divided both sides by 2 to isolate the x

I got x = 3/2 which also equal 1 1/2

Zoey is having a party for 10 friends.2 If each friend eats 1/2 pounds of chips, how many pounds of chips will Zoey need?
A. 6 pounds
B. 4 pounds
C. 5 pounds
Someone help me

Answers

Answer: C

Step-by-step explanation: 10 times 1/2

Answer:

C. 5 Pounds

Step-by-step explanation:

Total of 10 friends divide that by 2 you get five so you would do 5 times to would be 10 (sorry if i explained that weirdly)

before going on the last part of her journey. Hannah needed to rest and eat alot of the food. she ate 2 7/12kg of meat and another 4/12kg of fruits how much food did she eat in total?

Answers

Answer: 2 11/12 kg

Step-by-step explanation:

add the fractions and the the two(2)

5 - 6 - 9 - 8 - 5 - 4 + 5 - 5 -5 -5 - 32 = ?

Answers

5 - 6 = -1

-1 - 9 = -10

-10 - 8 = -18

-18 - 5 = -23

-23 - 4 = -27

-27 + 5 = -22

-22 - 5 = -27

-27 -5 = -32

-32 -5 = -37

-37 - 32 = -69

Answer = -69

What number is 73% of 14.6

Answers

Answer:

10.658

hope it helps

Answer:

10.658

Step-by-step explanation:

14.6 = 100%

? = 73%

73% ÷ 100% x 14.6

= 10.658

10.658 = 73%

Isolate the x

x + y/3 = 5

Answers

Answer:

x = 5 - y/3

Step-by-step explanation:

. Suha has a full 600 ml bottle of wallpaper remover. She is going to mix some of the wallpaper remover with water. Here is the information on the label of the bottle. Wallpaper remover 600 ml 1 Mix of the wallpaper remover 4 with 4500 ml of water Suha is going to use 750 ml of water. How many millilitres of wallpaper remover should Suha use? You must show your working.

Answers

Answer:

25ml of wallpaper remover

Step-by-step explanation:

(y = amount of wallpaper remover)

4500×4 = 18000

18000:600

750 : y

18000y = 600×750

18000y = 450000

y = 450000÷18000

y = 25

a polygon has a interior angle 172
find the number of sides of this polygon

Answers

Answer:

45 sides

Step-by-step explanation:

exterior angle + interior angle = 180° , that is

exterior angle + 172° = 180° ( subtract 172° from both sides )

exterior angle = 8°

The sum of the exterior angles of a polygon = 360°

To find the number of sides n , divide 360° by 8°

n = 360° ÷ 8° = 45

Answer:

45 sides

Step-by-step explanation:

If each of the interior angles is 172 degrees, then each of the exterior angles is 8 degrees. Since the sum of the exterior angles of any polygon is 360 degrees, there are 360 / 8 = 45 exterior angles and 45 sides

Please please solve this quickly. I've tried many things before, and I have no clue what the answer is.

Answers

The width is 3 and the height is 3

6) Bill is three times older than Kevin. He is also 28 years older than Kevin. How old are they?

Answers

Answer:

If bill is 28 years older than him, but also 3 times older than him, then you divide 28 by 3, which gives you 9.3. So that means kevin is around 9 1/4 years old and bill is around 37 and 1/4 years old, but you dont ahve to count the fraction if you dont want to, all that matters is the whole number.

Step-by-step explanation:

Bill is 42, while Kevin is 14 years old

Represent Bill's age with B, and Kevin's age with K.

So, we have the following equations

B = 3K and B = 28 + K

Substitute 3K for B in the second equation

[tex]3K = 28 + K[/tex]

Collect like terms

[tex]-K + 3K = 28[/tex]

[tex]2K = 28[/tex]

Divide both sides by 2

[tex]K = 14[/tex]

Substitute 14 for K in the first equation

[tex]B =3 \times 14[/tex]

[tex]B =42[/tex]

Hence, Bill is 42, while Kevin is 14 years old

Answers

Answer

80000

Step-by-step explanation:

200×400

=80000

Members of a soccer team raised $1428 to go to a tournament. They rented a bus for $955.50 and budgeted $31.50 per player for meals. Write and solve an equation which can be used to determine pp, the number of players the team can bring to the tournament.

Answers

Answer:

16 players can be brought to the tournament. The equation is written within my step-by-step explanation.

Step-by-step explanation:

Variable p = number of players

Set up an equation:

974.50 + 60.75p = 1946.50

Isolate variable p:

60.75p = 972

Divide:

p = 16

Check your work:

974.50 + 60.75(16) = 1946.50

974.50 + 972 = 1946.50

1946.50 = 1946.50

find slope and y intercept
x + y = -2

Answers

Answer:

slope =1 and y intercept = -2

Step-by-step explanation:

Find Slope and Y intercept

Slope and Y intercept

x+y=-2<-- subtract x to get y alone

y=-x-2

Thus slope is 1/1 or 1

and y intercept is -2

Answer:

-1

Step-by-step explanation:

y=mx+c m=slope

c=y intercept

y=-x+2

so the slope is -1 and intercept of 2

decrease £67 by 26% give your answer in pounds

Answers

Answer:

£ 49.58

Step-by-step explanation:

26% of 67 = 0.26 * 67 = £17.42

67 - 17.42 = £49.58

Since it isn’t asking for 26% off of 67, you use the number 74% because 26+74=100

Now, you multiply

.74x67

The answer will be

£49.58

Hope this helps!!

What is the interquartile range of the lengths of bananas?

Answers

Answer:

I couldn't decipher your question heres a graph for https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7984252/

that contains quartile ranges of stored bananas

Step-by-step explanation:

If this doesn't help please correct your question or tell me more so I can better help you

Which point is a solution for the inequality 3x – 2y < 5

a (3, 2)

b (2, 3)

c (5, 2)

d (8, 5)

how do I solve this?

Answers

You can solve this by substituting each x value and y value into the inequality to see if they work. If they do, that point is a solution.

3*3 - 2*2 < 5
9 - 4 < 5
5 < 5
False

3*2 - 2*3 < 5
6 - 6 < 5
0 < 5
True

3*5 - 2*2 < 5
15 - 4 < 5
11 < 5
False

3*8 - 2*5 < 5
24 - 10 < 5
14 < 5
False

B. (2, 3) is the only point that worked, so that is the answer! :D

PLZ HELP ASAP! I GIVE BRAINLIEST AND POINTS!
please dont post links

Find the value of the monomial.
5x^3 for x = 0.5

Answers

Answer:

⁵/₈

Step-by-step explanation:

x = 0.5

5x³ = 5(¹/₂)³

5x³ = 5(¹/₈)

5x³ = ⁵/₈

A train goes at a constant speed. It can travel 150 miles in 2 1/2 hours. How long would it travel in 2 hours?

Answers

150 / 2.5
60 miles per hour
60 X 2 = 120
120 miles in 2 hrs

Part A

In "Primary Lessons" from Silent Dancing: A Partial Remembrance of a Puerto Rican Childhood, what can the reader infer about how the narrator will ultimately feel about going to school?

She will misbehave there constantly to punish her mother for sending her.

She will become used to it, knowing everyone must go.

She will become an academic herself as she begins a lifelong quest for learning.

She will remain upset and fight her mother every single day.
Question 2
Part B

Which sentence in the text best supports the answer in Part A?

"It was my final argument, and it failed miserably because I was shouting my defiance in the language I claimed not to speak."

"How could she send me to school to learn Spanish when we would be returning to Paterson in just a few months?"

"I guess most children can intuit their loss of childhood’s freedom on that first day of school."

"The sight of my cousins in similar straits comforted me."

Answers

Answer:

a) she will become used to it, knowing everyone must go.

b) i guess most children can intuit their loss of childhood's freedom on that first day of school.

Explanation: i took the quiz

(x + y) (x -y) simplfied and showing work

Answers

Answer:

(x+y) + (x-y) = x + y + x - y =2x

(x+y)(x-y)=x^2 + yx - xy - y^2 = x^2 - y^2

(x+y) ( x-y)

x^2 - y^2

Step-by-step explanation:

Other Questions

What is the answer to this problem? How did the Immigration Act of 1965 affect Asian immigration to the United States? Asian immigration increased after the act took effect. Asian immigration decreased after the act took effect. Asian immigration stayed about the same after the act took effect. George eat 3/8 a pizza and 1/4 of pizza What fraction of pizza has George eaten A food truck sells tacos, burritos, and drinks.Let event A = A customer buys a taco.Let event B = A customer buys a drink.What does PA or B) = 0.55 mean in terms of this problem?A. The probability that a customer buys both a taco and a drink is55%.B. Buying a taco and buying a drink are mutually exclusive events.C. The probability that a customer buys neither a taco nor a drink is55%.O D. The probability that a customer buys a taco, a drink, or both is55%. Which equation has the solution x = 3?Select each correct answer.2x + 4 = 1093x=03x + 1 = 99x1=4x3+5=65x7=1 giving 50 pointss so hurry Progressives tended to favor_. O a. laissez-faire policiesO b. big businessesO c. capitalists successO d. government regulations We waited for Paul. We waited for Peter. We waited for Mary. Why did Nationalism led to war simplify the expression.20a^4 (1/2 a^3 )^2 Events A and B are disjoint. Find P(AorB) when P(A) = 0.55 and P(B) = 0.2P (A or B)= what is the measure of angle x? 5. The lengths of the sides of a triangle are x, 2x + 1 and 5x + 4 inches. If the perimeter is 53inches, what is the value of x?Equation: Xt2x+/+5x+4-53Solution: a cork floating in a beaker of water is attached to a spring, and the spring is attached to the bottom of the beaker. the spring pulls the cork farther below the water than it would be if it were just floating. what happens when we drop the beaker off a tall building? Which of the following is anexample of expository writing?A. Bats are the worst animals because they lookcreepy.B. Bats are the best animals because they help tolower the amount of insects in an area.C. Bats are essential to the ecosystem becausethey can eat up to i thousand insects per hour. I don't kow how to speak spanish how can i get better URGENT, WILL GIVE BRAINLIEST!!In ABC, A=27, a=27 and c=24. Which of these statements best describes angle C?C must be acute.C must be obtuse.C can be either acute or obtuse.ABC cannot be constructed. Select the correct answer.If you roll a fair die twice, what is the probability of getting an even number at least once?A. 0.75B. 0.36C. 0.5D. 0.25 Why are herbivores in level two of a foodweb?Worth 20 points :) What is the Factor of 3/9+8/9 8) What mass of chlorine reacts with 20.0 g of iron to form iron(III) chloride?

Please Help Im Doing A Test And Really Need The Answer! Please no fake answer for points

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Please Help Im Doing A Test And Really Need The Answer!

Please no fake answer for points