Mathematics High School

7th grade math again ​

7th Grade Math Again

Answers

Answer 1

George Washington

Step-by-step explanation:

so tea

Answer 2

Answer:

Step-by-step explanation:

Step 1: Find the circumfrence

Circumfrence= 2πr

Diameter= 8

Radius= 1/2 of diameter = 1/2x8= 4

R=4

2xπx4= 25.13--> about 25.

Step 2: Find diameter (already known)

D=8

Step 3: Write the ratio

25:8

Related Questions

Which point shows 1/8

Answers

i don't see a photo

Answer:

where the photo

Step-by-step explanation:

who want a 100 and cash

15x23

Answers

Answer:

345

Step-by-step explanation:

TY

15*23= 345
......................

If x = 3 units, y = 6 units, and h = 5 units, find the area of the parallelogram shown above using decomposition.

Answers

Answer:

12 square units

Step-by-step explanation:

Hope it helps

Solve please. Correctly
4x + 2 = 2 + 4x

Answers

Answer:

x = anything for both sides as long as they're the same number

Step-by-step explanation:

the answer is 56 good luck

PLEASE ANSWER FAST AND CORRECTLY, WORTH 74 POINTS!!!! An architect built a scale model of a sports stadium using a scale in which 3 inches represents 45 feet. The height of the sports stadium is 180 feet. What is the height of the scale model in inches?

Answers

It is 12 inches long

Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!! HELP !!!!!!!

Answers

Y= 2x + 3

You can tell because the slope is the same :)

A rectangle has four sides so we double each side and add them to each other:
2(2x+7)+2(3x+8y)
=4x+14+6x+16y
=10x+16y+14

What's the equation for this Answer??

Answers

Answer: this many 4

Step-by-step explanation:

2(2x+7)+2(3x+8y)

=4x+14+6x+16y

=10x+16y+14

High interest rates on savings accounts encourage people to _____. A. spend less B. save less C. save more D. spend more

Answers

Answer:

save more because if they saved more the more money

Step-by-step explanation:

trust

25 increased to 32..........

Answers

ummmmmmm... seven????

A sphere has a radius 2.7 centimeters, What is its volume to the nearest cubic centimeter

Answers

Answer:

82.447957600811

Step-by-step explanation:

Which descriptions from the list below accurately describe the relationship
between AQRS and ATUV? Check all that apply.

Answers

Similar

Same Shape

They are Congruent and are Similar!

The descriptions that accurately describe the relationship between AQRS and ATUV is they are similar and congruent. The correct options are B and C.

What are congruent angles?

Angles with the same measure are said to be congruent. In other words, two angles are congruent if they open to the same degree.

Two angles of 60 degrees, for example, are congruent because they have the same measure.

Similar angles are those that have the same shape but differ in size. In other words, two angles are similar if they are scaled by the same factor and have the same degree of opening.

Two angles of 60 degrees, for example, are similar because they have the same shape; however, if one of the angles is scaled to be twice as large as the other, they remain similar angles.

Thus, as per the given image, the correct options are B and C.

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SIMPLE > Simplify. 4√27 + 6√75 Enter your answer, in simplest radical form...

Answers

Answer:

42√3

Step-by-step explanation:

4√27 = 4√(9)(3) = 12√3

6√75 = 6√(25)(3) = 30√3

12√3 + 30√3 = 42√3

This table gives the value of an investment for the first 5 years after the initial investment was made. The data can be modeled using an exponential function.

Years 1 2 3 4 5
Investment value $1,050 $1,103 $1,160 $1,215 $1,280
Based on the data, which amount is closest to the value of the investment 10 years after the initial investment?


$1,350

$1,475

$1,625

$1,800

Answers

Answer:

C.) $1,625

Step-by-step explanation:

Going by the numbers on the graph, you can immediately tell $1,350 and $1,475 are way too low, so cancel those out and you get $1,625 and $1,800

From here, you can see that in 5 years it hasn't gone up by far, so it won't be 1,800$ by 10 years end, making the answer clear

You can just double 280 and get 560, which the closest answer is 1,625

It's really just a high-low estimate question, 2 answers are too high or low, one is close but not really, and one is just right- or inbetween

$1,625

The amount $1625 is closest to the value of the investment 10 years after the initial investment option third is correct.

What is an exponential function?

It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent [tex]\rm y = a^x[/tex]

where a is a constant and a>1

Let's suppose the exponential function that model the problem is:

 [tex]\rm y = ae^k^x[/tex]

Plug x = 1 and y = 1050

[tex]\rm 1050 = ae^k[/tex] ...(1)

Plug x = 2 and y = 1103

[tex]\rm 1103 = ae^2^k[/tex]  ...(2)

Divide equation (2) with (1)

[tex]\rm e^k = 1.0504[/tex]

Taking ln to get the value of k

k = 0.0491

a = 999.69

The exponential function:

[tex]\rm y = (999.6902)e^{0.0491}^x[/tex]

Plug x = 10 years in the above function:

y = $1633.44

Which is close to $1625

Thus, the amount $1625 is closest to the value of the investment 10 years after the initial investment option third is correct.

Learn more about the exponential function here:

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Which equation represents the line that passes through the point (-3, 2) and has a slope of 2?
O y = 2x + 1
O
y = 2x - 4
O y = 2x - 7
y = 2x + 8

Answers

Answer:

y = 2x + 8

Step-by-step explanation:

To find the line, use the equation y = mx + b.

Plug in the slope and given point, then solve for b:

y = mx + b

2 = 2(-3) + b

2 = -6 + b

8 = b

Plug in the slope and b into the equation:

y = 2x + 8

So, the equation of the line is y = 2x + 8

Answer:

m

Step-by-step explanation:

A rectangle has sides that are 1 cm and 2 cm long. If it is increased by a scale factor of 9, what will be the new area of the rectangle?

Answers

Answer:

[tex]162cm^2[/tex]

Step-by-step explanation:

The original sides are 1 and 2 centimeters, Increasing both by a factor of 9 results in 9 and 18 centimeters. We multiple to find the area is 162 square centimeters,

PLEASE HELP!!!!
If u give me the answer I will post another question for u worth ALOT of points just so rn I don't get scammed :(


How would you write the rules for solving fraction expressions?



A)- Addition



B)- Subtraction



C)- Multiplication



D)- Division

Answers

Answer:

multiplication

Step-by-step explanation:

Hopes this helps:

Answer: multiplication

We can multiply two fractions with different denominators, but we cannot add and subtract them.

What is the volume of the pyramid, to the nearest
cubic foot?
O 5ft
O 9 ft
O 14 ft
O 19 ft

Answers

Answer :
I think is 19 ft

Calculate the angles of a parallelogram if the sum of the three angles is 310°

Answers

9514 1404 393

Answer:

  adjacent angles are 50° and 130°

Step-by-step explanation:

The sum of all 4 angles in a parallelogram is 360°, so the fourth angle must be ...

  360° -310° = 50°

Adjacent angles are supplementary, so the other two angles must be ...

  180° -50° = 130°

The angles in the parallelogram are either 50° or 130°. Adjacent angles are different.

What is the area?



-QUICKKKKKK

Answers

Answer:

34 sq cm

Step-by-step explanation:

4x4 = 16

9x2 = 18

16+18= 34

Three friends went to lunch and ordered the special. They had a coupon of $10 off the bill and they spent $35 in all. Write an equation to represent this situation.

Answers

Answer:

35-10/3

Step-by-step explanation:

guys pls help me with this

Answers

Answer:

3.since two base side are equal

4.sum of interior angle of the triangle is 180

9.base angle of isosceles triangle

16.the inscribed angle from the diameter is 90°

21.being CAE=90°


Briana biked 2.82 miles on Monday, 3.75 miles on
Wednesday, and 2.13 miles on Friday.
Which statement correctly compares an estimate of the
total distance with the exact total distance that Briana
biked?
A. The estimate 2 + 3 + 2 is smaller than the exact
answer but is within 1 mile.
B. The estimate 2 + 4 + 2 is greater than the exact
answer but is within 1 mile.
C. The estimate 3+ 4+ 2 is smaller than the exact
answer but is within 1 mile.
D. The estimate 3 + 4 + 2 is greater than the exact
answer but is within 1 mile.

Answers

Answer:

D.)

Step-by-step explanation:

[tex]2.82+3.75+2.13=8.7[/tex]

[tex]3+4+2=9[/tex]

9 is greater than 8.7 but it is still 1 mile of the correct value.

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A boat is traveling at 43.2 m/s. It then goes down a faster part of the river and is now going 144
m/s which gave the boat an acceleration of 25.2 m/s2. How long did it take the boat to reach its
new speed?

Answers

Answer:

Step-by-step explanation:

boat was at 43.2 m/s   speed increase to 144 m/s

if the boat was moving 0 m/s and increased to 144 m/s - 43.2 m/s accelerating at 25.2 m/s²,  it would take the same amount of time

25.2 m/s² × x seconds = (144 - 43.2) m/s      solve for x in seconds

x seconds = 100.8 m/s   /  25.2 m/s²

x seconds = 4 (m/s /ms²)  = 4 (m/s × s²/m)  = 4 seconds   the  units match

x = 4 seconds

The volume of a cube is 216 cubic meters. What is the length (in meters) of one edge of the cube?


Answers

Answer: 6 meters

Step-by-step explanation: 6 is also what we call a cube root of a number. A cube root is a number you multiply by itself 3 times to get the product.

6 times 6 equals 36. 36 times 6 equals 216.

(6 times 6 times 6 = 216)

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Given the following genotypes, describe the phenotypes (normal, carrier, or sickle-cell)

AA = ________________________________
Aa = ________________________________
aa = ________________________________

Answers

Sssssnake ssssssnake sssssnake

Evaluate the expression 2bc2 for b = 1.5 and c = 5

Answers

Answer:15

Step-by-step explanation:

The value of the given expression 2bc² for b = 1.5 and c = 5 will be 75.

What is an expression?

A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.

A statement expressing the equality of two mathematical expressions is known as an equation.

As per the given expression,2bc²

Put b = 1.5 and c = 5,

2(1.5)(5)² = 3 x 25 = 75

Hence "The value of the given expression 2bc² for b = 1.5 and c = 5 will be 75".

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Andrew bought 24 carpet tiles and 3 tins of paint.
The total cost was £100.20. Each tin of paint cost £13.16.
Find the cost of one carpet tile.

Answers

Answer:

Cost of one carpet tile = (Total cost-3*tin of paint cost)/24

                                      =(100.20-3*13.16)/24=2.53

Hope this helps <3

Answer: £2.53

13.16 x 3 = 39.48

100.20 / 39.48 = 2.53

if f(x)=81, what is x?

Answers

Answer:

There's not enough information...

Answer: x=0 because there is no solution that's what I got

Step-by-step explanation:

I NEED HELP ASAP ON NUMBER 7 and 8

Answers

Number 7 I believe the answer is 74.

Which is closest to the volume of the rectangular solid below?
6.98 feet
4.12 feet
3.78 feet

Answers

Well I think it’s 6.98
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