Mathematics High School

Can someone help me with this and make sure to explain (8th grade math)

Can Someone Help Me With This And Make Sure To Explain (8th Grade Math)

Answers

Answer 1
Answer: [tex]\boxed{439.82}[/tex]Solution Steps:

____________________________

1.) To find lateral surface the formula is: [tex]2[/tex]π[tex]r[/tex] × [tex]h[/tex][tex]2[/tex]π[tex]7[/tex] × [tex]10[/tex]2.) Solve:[tex]2[/tex]π[tex]7[/tex] × [tex]10=439.822972[/tex]

____________________________

Can Someone Help Me With This And Make Sure To Explain (8th Grade Math)

Related Questions

find the value of X round to the nearest tenth

Answers

Given:

In a right angle triangle triangle, the length of hypotenuse = 47 units.

One of the acute angle = 17°.

Opposite side of the given angle = X

To find:

The value of X. Round to the nearest tenth.

Solution:

In a right angle triangle,

[tex]\sin \theta=\dfrac{Opposite}{Hypotenuse}[/tex]

A right triangle is crated with the help of dotted lines. In this triangle,

[tex]\sin (17^\circ)=\dfrac{X}{47}[/tex]

[tex]0.2923717=\dfrac{X}{47}[/tex]

Multiply both sides by 47.

[tex]0.2923717\times 47=X[/tex]

[tex]13.74147=X[/tex]

[tex]X\approx 13.7[/tex]

Therefore, the approximate value of X is 13.7 units.



At the beginning of the school year, Bradley bought a new box of 120 crayons. At the end
of the year, only 10% of the crayons are still sharp. How many of Bradley's crayons are
still sharp?

Answers

Answer:

12

Step-by-step explanation:

120 divided by 100   =    12

12 multiplied by 10% =12

120 of 10% =12
120-12 =108
108 of Beasley’s crayon are still sharp

Find the length of side a.
A. 2
B. 3
C. 34
D. 9​

Answers

It’s B


You need to use the Pythagorean theorem which is a squared + b squared = c squared

So a^2+4^2=5^2
Simplified that would be a^2 + 16 = 25

Subtract 16 from both sides
A^2=9

And the square root of nine is 3

-6x + 30 > 36 Solve for x

Answers

Answer:

x > -2

Step-by-step explanation:

-6 (-2) + 30 > 36

12 + 30 > 36

42 > 36

Yes

10 is 10 times much as​

Answers

Answer:

10 is 10 times as much as 1 because if you were to multiply 1 x 10, you would get 10.

the answer is 1 , cause 10 times 1 is still 10

Which sequence explains a geometric method of determining StartFraction 3 minus 17i Over 2 + 2 I EndFraction ?

Answers

You’re gonna have to take a picture, I can’t understand

Help is for my geometry homework, could someone explain me. ☆​

Answers

Answer:

i think you subtract 67 from 137 so its 70

Step-by-step explanation:

67-137

what is the measure of the angle in question?

Answers

Answer:

? = 114

Step-by-step explanation:

Angle Formed by Two Chords  =  1/2 ( sum of Intercepted Arcs)

? = 1/2 ( 53+ 175)

? = 1/2 ( 228)

? = 114

ASAP plzzz answer 1 and 2!!! Directions are on the screenshot!! 50 pts + Brainliest

Answers

Answer:

- 1 -4 for the botome one

Step-by-step explanation: sorry thats all i got

Answer:

negative 1 -4

Step-by-step explanation:

pls help will give brainiest
Find the length of A.

Answers

Answer:

5

Step-by-step explanation:

13^2=169

12^2=144

169-144=25

Root 25 is 5

A.) 5
use Pythagorean theorem: a^2+b^2=c^2
plug in the values
x^2+12^2=13^2
Move the 12^2 to the other side
x^2=13^2-12^2
x^2=25
Take the square root from both sides
x=5

Please help for:
5 − 8 −2n = −75

Answers

Answer:n

= − 5 , 5

Step-by-step explanation:

2x + 1 = 9
is that the answer ?

Answers

Answer:

yes

Step-by-step explanation:

because 9-1=8/2 equals 4 so2x4+1=9

andre came up with the following puzzle. i am three years younger than my brother 2 years older than my sister. my mom's age is one less than three times my brother's age. when you add all are ages you get 87. what are our ages?
try to solve the puzzle

Answers

Answer:

Andre is: 13

Andre's brother is: 16

Andre's sister is: 11

Andre's mom is: 47

Add all their ages up and the total will be 87.

i need help lol i forgot how to do this

Answers

Answer:

the answer is D because anything with an exponent of 0 is equal to 1

Step-by-step explanation:

I hope this helps :))

Solve the perimeter formula for an isosceles triangle, P = 2a + b for a.


a = P + 2b



a = P – 2b

Answers

Step-by-step explanation:

subtract b to get P-b=2a. divide each side by 2 to get (P-b)/2=a

I need help please... 30 points + brainliest if u answer all 5 I'LL DO ANYTHING :'(
1. f(x)=x^2−4x, find f(−3)

2. f(x)=x^2−x, find f(−10)

3. f(x)=3x+1, find f(−3)

4. f(x)=4x−2, find f(8)

5. f(x)=x^2+2, find f(0)

Answers

f(x) is a function that takes some number x and outputs another one.

To get the output value, replace every instance of x in f(x) with the given number.

1. If f(x) = x ² - 4x, then

f (-3) = (-3)² - 4(-3) = 9 + 12 = 21

2. f(x) = x ² - x, so

f (-10) = (-10)² - (-10) = 100 + 10 = 110

3. f(x) = 3x + 1, so

f (-3) = 3(-3) + 1 = -9 + 1 = -8

4. f(x) = 4x - 2, so

f (8) = 4(8) - 2 = 32 - 2 = 30

5. f(x) = x ² + 2, so

f (0) = 0² + 2 = 0 + 2 = 2

Cathy has $100 saved to spend on clothes. She wants to purchase a winter jacket for $40 and some sweaters that cost $20 each. How many sweaters can Cathy buy?

Answers

Cathy can buy 3 sweaters.

what is 6x4x9x9x10x24 divided by 2=.........I will mark brainliest!!!!!!!

Answers

Answer:233280

Step-by-step explanation:

Answer:

233280

Step-by-step explanation:

2. Find the slope of the following equation. Simplify your answer.
y = = -5/2x - 2

Answers

Answer:

-2.5

Step-by-step explanation:

HEELLPPP!!!!! fastttt plzzzzz!

The sales for products sold at an electronic store are below. What percent of the products sold were speakers?

Answers

Answer:

6.00%

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

What single percentage change is equivalent to a 7% increase followed by a 22% increase?

Answers

Step-by-step explanation:

You can see hier - Percentage Change Calculator

Fill in the blanks!!

(Will be given brainliest for the correct answers)

Answers

Answer:↓↓↓

Step-by-step explanation:

We are given that side AB is congruent to BD. We are also given that side AC is congruent to CD.

We know that side BC and side CB are congruent because of the Reflexive property.

Therefore, ΔABC and ΔDBC are congruent because of SSS Postulate.

Hope this helped!

Katherine went to the store to buy some almonds. The price per pound of the almonds is $3 per pound and she has a coupon for $1.50 off the final amount. With the coupon, how much would Katherine have to pay to buy 4 pounds of almonds? Also, write an expression for the cost to buy pp pounds of almonds, assuming at least one pound is purchased.

Cost of 4 pounds:
Cost of pp pounds:

Answers

Answer:10.50

Step-by-step explanation: 12-1.50=10.50

Answer: 12

Step-by-step explanation:

4t5t

Skylar went to the store to buy some almonds. The price per pound of the almonds is $7.75 per pound and she has a coupon for $3.50 off the final amount. With the coupon, how much would Skylar have to pay to buy 3 pounds of almonds? Also, write an expression for the cost to buy pp pounds of almonds, assuming at least one pound is purchased.

Skylar went to the store to buy some almonds. The price per pound of the almonds is $7.75 per pound and she has a coupon for $3.50 off the final amount. With the coupon, how much would Skylar have to pay to buy 3 pounds of almonds? Also, write an expression for the cost to buy pp pounds of almonds, assuming at least one pound is purchased.

Skylar went to the store to buy some almonds. The price per pound of the almonds is $7.75 per pound and she has a coupon for $3.50 off the final amount. With the coupon, how much would Skylar have to pay to buy 3 pounds of almonds? Also, write an expression for the cost to buy pp pounds of almonds, assuming at least one pound is purchased.

pls help!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The answer is A -6,-4
B is the answer I did this on edge

A shoe store buys a shipment of nike shoes that cost $70 each to the purchases. They want to markup their prices for the customers by 30%. How much would the customer pay for a pair of nikes

Answers

Given :

A shoe store buys a shipment of Nike shoes that cost $70 each to the purchases.

They want to markup their prices for the customers by 30%.

To Find :

How much would the customer pay for a pair of Nikes.

Solution :

C.P = $70 .

It is given that selling price is 30% more than the S.P.

So, S.P = C.P + C.P×0.30

S.P = C.P×1.30

S.P = 70×1.30

S.P = $91.

Therefore, the customer would pay $91 for a pair.

During the morning commute 60 cars and 12 trucks passed through the intersection. What is the ratio of cars to trucks?​

Answers

Answer: 60:12, 60/12, or 60 to 12.

Step-by-step explanation:

To find the ratio, we must find 2 values. The values in this case is 60 and 12. 60 being cars and 12 being trucks.

So to write the ratio, we must put the cars first, then the trucks second.

So 60 first, and 12 second.

And remember, there are 3 ways to write ratios.

So we can write it like 60:12, 60/12, or 60 to 12.

The answers are 60:12, 60/12, or 60 to 12.

WEST is a parallelogram. If mze = (3x – 18)º, mzw
find the value of y and mus.
(15y + 6)°, and m2T = (2x + 6),

Answers

9514 1404 393

Answer:

  m∠W = m∠S = 126°

  m∠E = m∠T = 54°

  x = 24

  y = 8

Step-by-step explanation:

Opposite angles of a parallelogram are congruent, so we have ...

  ∠E = ∠T

  3x -18 = 2x +6

  x = 24 . . . . . . . . . add 18-2x

Then the measure of these angles (in degrees) is ...

 ∠E = ∠T = 2x+6 = 2(24) +6 = 54

__

The adjacent angle W is supplementary to either of these:

  ∠W = 180° -∠E

  15y +6 = 180 -54

  15y = 120

  y = 8

  ∠W = ∠S = 126°

Answer:

y = 8

Angle S= 126°

Step-by-step explanation:

Aaliyah needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 3 hours and charged her $66 for parts. The total was $441. Write and solve an equation which can be used to determine x, the cost of the labor per hour.
Equation:
Answer: I =​

Answers

Answer:

you should try adding then subtractung the total to the part

A pipe is leaking in the school bathroom. It has leaked 3 gallons of water in 6 hours.
COP=
HELPP PLZ

Answers

Answer:

It leaks half a gallon each hour.

Step-by-step explanation:

Answer:

Call the plumber

Step-by-step explanation:

If the school people refuse, make a petition. Ask around if they want a new pipe or fix it and collect their signatures. If the school still refuses, you can report them to the cops. If this was a question, it leaks 1/2 gallon per hour.

Carlos planted 4 flowers in 9 minutes. At this rate, how many flowers can Carlos plant in 36 minutes?

Answers

the correct answer is 16

4(36/9). You need to find how many 9s go in to 36, and once you have that number you can multiply it by 4
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