If a radius is 20, what is the diameter? (Remember d=2r)​

Answers

Answer 1

Answer:

40

Step-by-step explanation:

20(2)=40

Answer 2

Answer:

40

Step-by-step explanation:

d=2r

 =2(20)

 =40


Related Questions

I NEED HELPPPPP!!!! PLZZZ

Answers

Answer:

13.5

Step-by-step explanation:

Write this algebraic expression in words 5(n-4)+7

Answers

Answer:

Five times the difference of n and four plus seven

Step-by-step explanation:

Five times the difference of n and four plus seven

Answer:

five multiplied by the difference of N and four plus seven

A car travels m miles per hour. Which variable expression represents the number of miles traveled in 8 hours?

A. m/8
b. m-8
c. 8m
d. 8÷m

Answers

Answer:A Idk if this is right!

Two cars are 270 miles apart and traveling toward each other on the same road. They meet in 3 hours. One car is traveling 6 mph faster than the other. What is the speed of each car?

Answers

Answer:

42

Step-by-step explanation:

3(x+x+6)=270

3(2x+6)=270

6x+18=270

6x=252

x=42


The number of points Emerson scored in 5 basketball games is 10, 8, 9, 8,
and 30. Why might it be misleading to Emerson to say that she averages 13
points per game? *

Answers

Answer:

because she usually gets lower scores but her avarge is 13 because she make 30 in one game witch is an outlire

Step-by-step explanation:

if im wrong im sorry if not pls brainlyest

What is the correct answer

Answers

By the theorem,

48/20 = 36/x

x = 36(20)/48 =12(3)(4)(5)/((4)(12)) = 15

Answer: 15, second choice

Answer: 15
hope this help

Larry, Barry, Terry are saving their money for a trampoline that costs $340.

• The amount of money Larry has saved can be represented by x.
• The amount of money Barry has saved is 1
1
2
times the amount Larry has saved.
• The amount of money Terry has saved is 1
1
3
times the amount Larry has saved.
• The total amount of money saved by Larry, Barry, and Terry is $322.

What is x, the amount of money saved by Larry?

Answers

Answer:

Larry=X

Barry=112x

Terry=113x

L+B+T=322

x+112x++113x=322

226×=322

Larry saved $1.42

Answer:

$84

Step-by-step explanation:

I did it before.

Which choice is equivalent to the expression 4(x+2y)? I need it right now please!

Answers

Answer:

4x+8y

Step-by-step explanation:

you use distributive property

you multiply 4 times x

and 2y times 4

hope this helps

Find the volume of the following solid figure. Use = 3.14.
V = 4/31tr3. A sphere has a radius of 4.5 inches.
Volume (to the nearest tenth) =
cubic inches.
381.5
56.5
84.8

Answers

381.5 because it is......

I need help marking brainliest

1)


Increases as the habitat is increasingly polluted


2)


Decreases as the habitat is increasingly polluted


3)


Remains the same as prey population remains the same


4)


Remains the same as predator population remains the same

Answers

Answer:

2) Decreases as the habitat is increasingly polluted

Step-by-step explanation:

number 1 make no sense. 3; at the start, say the population is x. but taking into account the pesticide, it cant no longer ramain the same (pesticide kills some of the x) . 4; similar to the case for answer 3

Answer: 2

Explanation: 1 makes no sense. With 3 there would still be the pollution to worry about and there’s the same problem with 4. Because there is more pollution the cricket frogs would die out.

Olga decided to purchase a $22,000 MSRP vehicle at a 4.5% interest rate for 4
years. The dealership offered her a $2500 cash-back incentive, which she
accepted. Taking all these factors into consideration, what monthly payment
amount can she expect?

Answers

Answer:

479.375

Step-by-step explanation:

Answer:

$444.67

Step-by-step explanation:

A P E X

Are the graphs of the lines in the pair parallel? Explain,

y = 3x - 17
4x - 6y = -6

A.)Yes, since the slopes are the same and the y-intercepts are the same.
B.)No, since the y-intercepts are different.
C.)No, since the slopes are different.
D.)Yes, since the slopes are the same and the y-intercepts are different.

Answers

Option A is the correct answer

Answer:

C

0 No, since the slopes are different.

Step-by-step explanation:

First, solve the second equation.

-6y=-16-4x

6y=16+4x

y=16/6+4/6x

y=2/3x+8/3

Next, look at the equation of a line's format.

y=mx+b

This means y=(m=slope)*x+b[when x=0, y=b]

In the first equation, y=3x-17, we can see that m=3, and b=-17

In the second equation, y=2/3x+8/3, m=2/3, and b=8/3

We know that m is the slope, and 3 does not equal 2/3.

Lines are only parallel when their slopes are the same

Therefore, the two lines are not parallel since the slopes are different.

A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents the amount of the isotope left then the equation for the situation is

Answers

Answer:

y=y0e^-0.0002t

Step-by-step explanation:

A certain isotope decays at a rate of 2%per 100 years. If t represent the time in years and y represent the amount of the isotope left then the equation for the situation is y=y0e^-0.0002t . In how many years will there be 86% of the isotope left?
.
Let x = initial amount
then our formula is
.86x = xe^(-0.0002t)
.
Notice, if we divide both sides by x, we eliminate our unknown:
.86 = e^(-0.0002t)
Solving for x, we take the ln of both sides:
ln(.86) = -0.0002t
ln(.86)/(-0.0002) = t
754.114 years = t

What is the volume, in cubic m, of a rectangular prism with a height of 15m, a width of 4m, and a length of 13m?

Answers

Answer:

V = 780 m3

Step-by-step explanation:

336 students enrolled in a freshman-level chemistry class. By the end of the semester, 6 times the number students passed as Find the number of students who passed and the number who failed

Answers

288 students passed and 48 students failed

How do you identify the center and radius of a circle?

Answers

Answer:

To find the radius You have to take the circumference of the circle and divide it by 2 times π (pi)

To find the center you draw a chord across the circle (a line across the circle near the edge so it cuts the circumference in two places- if you didn't know) then you find the mid point of the chord, and add a chord or two to determine where they meet in the center

Step-by-step explanation:

PLEASE HELP WILL GIVE BRAINLIEST What is the sign of 4ab when a>0 and b<0
a. Positive
b. Negative
c. Zero

Answers

Answer: b

Step-by-step explanation:

4ab

[tex]a>0[/tex] a will always be positive.

[tex]b<0[/tex] b will always be negative.

4(a)(-b)

-4ab

Answer:

the answer is A

Step-by-step explanation:

khan said so

The table shows the relationship between the number of minutes that a hose
has been on and the number of gallons of water that have been added to a
plastic pool. Which statement is true?
0
5
10
15
20
Minutes Hose
On
Gallons of
Water in Pool
0
80
120
160
»
» The relationship is additive because
the number of minutes can be found
by adding 5 to the number of gallons.
The relationship is additive because
the number of gallons can be found by
adding 5 to the number of minutes.
»
The relationship is multiplicative
because the number of gallons can be
found by multiplying the number of
minutes by 8.
The relationship is multiplicative
because the number of minutes can
be found by multiplying the number of
gallons by 8.​

Answers

Answer:

(C)The relationship is multiplicative  because the number of gallons can be

found by multiplying the number of  minutes by 8.

Step-by-step explanation:

Given the table below which shows the relationship between the number of minutes that a hose  has been on and the number of gallons of water that have been added to a  plastic pool.

[tex]\left|\begin{array}{c|c}$Minutes Hose On&$Gallons of Water in Pool\\-------&-------\\0&0\\5&40\\10&80\\15&120\\20&160\end{array}\right|[/tex]

We can see that if we multiply the first column by 8, we will obtain the second column. Therefore the relationship is multiplicative because the number of gallons can be  found by multiplying the number of  minutes by 8.

The correct option is C.

NED HELP NOW 69 POINTS ​

Answers

Answer:

c

Step-by-step explanation:

I say c because i couldn't decide between c or d.

PLEASEEE HELP

Which table represents a linear function

Answers

The one on the bottom left represents a linear function

Find the least number which must be added to each of the following numbers to make them a perfect square. Also find the square root of the perfect square number so obtained: a) 5678

Answers

Answer:2

Step-by-step explanation:22*

Answer:

5 = 25 = 5

6 = 36 = 6

7 = NA

8 = 81 = 9

Calculate the following percent using fraction equivalents. 50% of 64

Answers

Answer:

Step-by-step explanation:

50% is [tex]\frac{50}{100}[/tex] but we're working with 64 units, not 100. So, we must find a number that represents 50 but in 64 units.

[tex]\frac{50}{100}=\frac{x}{64}[/tex]

If you solve for x, you get:

[tex]x=\frac{50*64}{100}\\ x=32[/tex]

[tex]\frac{50}{100}=\frac{32}{64}[/tex]

If a data value in a normal distribution has a negative z-score, which of the following must be true?

Answers

WHERE ARE THE FOLLOWING?

Answer:

C. The data value must be less than the mean

Step-by-step explanation:

Took the quiz on edge:)

A storage container that is in the shape of a rectangular prism has a volume of 60 cubic feet. What could
be the dimensions of the container if one dimension is 3 feet and all dimensions are whole units?
Select all that apply.
A. 3 feet by 4 feet by 5 feet
B. 3 feet by 3 feet by 5 feet
C. 3 feet by 5 feet by 6 feet
D. 3 feet by 2 feet by 10 feet
E. 3 feet by 2 feet by 15 feet

Answers

Answer:

A and B i think

Step-by-step explanation:

Use the given information to answer the question.

Answers

Answer:

D.

Step-by-step explanation:

Comparing Point P and P' by getting any coordinate.

we will take x coordinate

P has x-coordinate 2 while P' has x-coordinate 8

To find the scale factor, we will divide them

=8/2 gives 4 so the scale factor is 4 this means that rectangle PQRS is dilated 4 times of its perimeter.

So,

Perimeter of P'Q'R'S'= 16 × 6 = 64

Describe the pattern of the number sequence 1, 9, 17, 25, 33, .... by using algebraic expressions

Answers

Answer:

8n + 1, where n is a whole number greater than or equal to 0.

Step-by-step explanation:

Every number on this list is one more than a multiple of 8, so if n is a whole number great than or equal to 0, the expression 8n describes every multiple of 8, and 8n + 1 describes every number one more than a multiple of 8.

The sequence is an arithmetic sequence.

The pattern is 1 + (n - 1)8.

What is an arithmetic sequence?

It is a sequence where the difference between each consecutive term is the same.

Example:

2, 4, 6, 8 is an arithmetic sequence.

We have,

1, 9, 17, 25, 33,....

This is an arithmetic sequence.

The first term is 1.

a = 1

The common difference is 8.

d = 8

i.e

9 - 1 = 8

17 - 9 = 8

25 - 17 = 8

The nth term of an arithmetic sequence.

= a + (n -1)d

= 1 + (n - 1)8

Thus,

The pattern of the sequence is 1 + (n - 1)8.

Where n is the term of the number.

Learn more about arithmetic sequence here:

https://brainly.com/question/10396151

#SPJ2

Wanda decided to purchase a $33,000 MSRP vehicle at a 6.5% interest rate
for 3 years. The dealership offered her a $5500 cash-back incentive, which
she accepted. Taking all these factors into consideration, what monthly
payment amount can she expect?

Answers

Answer: $842.85

Step-by-step explanation:

PLS HELP....I WILL GIVE YOU BRAINLIEST!!!!!!!!!!
Express as a percent:
1/6:
1/3:
2/3:
5/6:

Answers

Look at the attached picture

Hope it will help you

Good luck on your assignment

Please help me I have to go to a class and I need this fast

Answers

Answer:

5) Mode = 63          6) Mode = 74        

   Range = 70             Median = 74

   Median = 63           Range = 57

   Mean =  58.75        Mean = 68.7

Step-by-step explanation:

PLEASE HELP ME I REALLY NEED IT

Answers

Answer:

D. The hypotenuse is 10 cm.

Step-by-step explanation:

6²+8²=c²

36+64=c²

100=c²

√100=c

10=c

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