is this correct? it might be hard to read tho​

Answer:B

Step-by-step explanation:

c=2nr  or c=nd

2*3.14 * 10= 62.8

3.14 * 20= 62.8

The circumference of the tires is 62.8 inches.

Circumference of a circle is defined for non straight curves which is the length of the boundary of the curve.

Given that, a 20-inch bicycle has tires with a diameter of 20 inches.

Diameter of the tire = 20 inches.

Radius of a circle or a circular object is half of the diameter of it.

Radius of the tire = 20 / 2 = 10 inches

Circumference of a circular object = 2πr, r is the radius.

Circumference of the tire = 2π r

                                          = 2 (3.14) (10)

                                          = 62.8 inches

Hence the circumference of a bicycle tire is 62.8 inches.

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Answer:

42

Step-by-step explanation:

A=33

2a2=3·3

2·42≈41.56922

Answer:

42

Step-by-step explanation:

Answer:

PLEASE HELP 100 POINTS! D) How do you calculate the he residuals for a scatter plot?

E) calculate the residuals for you scatter plot in step 2d (the picture of the graph is attached) I’ll give brainliest if you answer both! :)

“To find the residual, you would subtract the predicted value from the measured value so for x-value 1 the residant would be” is how you would find the answer.

Answer:

40 degrees

Step-by-step explanation:

Look at the attachment

Median income is the income in the middle of the data set when incomes are arranged from least to greatest.

Median is a measure of central tendency that is used to describe the number that is in the middle of a set of numbers that are arranged either in ascending or descending order

For example, the income of 3 workers for march are : $1000, $5000, $10,000. The median income is $5000.

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Answer:6.71

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:d

Step-by-step explanation:

Answer:

A!!!!

Step-by-step explanation:

Answer:

Step-by-step explanation:

hello :

this line passes trough A(1,1) and B(2,4)

the slope is :   (YB - YA)/(XB -XA)

(4-1)/(2-1)  = 3/1

the slope is  : 3.....answer : C  (parallal means : same slope)

Answer:

True

Step-by-step explanation:

The answer will be true for the following question.

True or False.

A dilation is defined by a scale factor.

Hope this helps

Answer:

True would be your answer. Hope this helps.  :  )

Step-by-step explanation:

Answer:

A proportional relation is a logical relation that establishes a range of conditional relations that together involve direct or inverse correlation.

Some common unit rates are miles (or kilometers) per hour, cost per item, earnings per week, etc. In each case the first quantity is related to 1 unit of the second quantity.

A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity.

I have to make sure that there is at least one variable that directly effects another.

Some equations are y = 3x, y = 1.5x, and y = 2/3x.

Step-by-step explanation:

Answer:

41 is the right answer!

Answer:

1/5

Step-by-step explanation:

Answer:

65/63.

Step-by-step explanation:

65 is the hypotenuse, and JK is opposite angle < I  so

csc < I = hypotenuse / opposite side

= 65/63.

Answer:

552

Step-by-step explanation:

Answer:

The area of the circle is 1988.1 cm.

Step-by-step explanation:

You basically have all of the instructions on how to do this in the question.

I hope I helped.

Brainliest would be appreciated.

Answer:

obtuse

Step-by-step explanation:

Over 90 degrees

Answer:

Obtuse

Step-by-step explanation:

The angle is obtuse because the angle is more than 90 degrees.

Answer:

b

Step-by-step explanation:

hope this helps

Answer:

b

Step-by-step explanation:

Answer:

3.5

Step-by-step explanation:

26, 31, 32, and 39

First we need to find the mean

(26+ 31+ 32+ 39) /4

128/4 = 32

The mean absolute deviation is sum of   the positive difference between the number and the mean  divided by the number of terms

((32-26)+ (32-31)+ (32-32)+ (39-32)) /4

14/4

3.5

Answer:

x = 5 in.

Step-by-step explanation:

Volume = 1/3 * area of the base * height

200 = 1/3 * 8*15 * x

200 = 40x

x = 5 in.

Answer: i think the answer is B thousands

Step-by-step explanation:

Answer:

121

Step-by-step explanation:

Answer:

121

Step-by-step explanation:

Because it shows clearly that small box is 121

Answer:

The number of applicants that have ages that fall within the box of the boxplot = 10.

Step-by-step explanation:

box plot is constructed from five values: the minimum value, the first quartile, the median, the third quartile, and the maximum value.

The boxplot usually consists of a box and a whisker plot.

The whiskers represent data that is less than the first quartile or 25th percentile and data that is more than the third quartile or 75th percentile.

The box of the boxplot is bounded by the first quartile or 25th percentile and the third quartile or 75th percentile.

Hence, the fraction of the distribution that is usually contained in the box of the boxplot is (75 - 25), 50% of the distribution.

The total number of applicants = 20

50% of 20 = 10.

Hence, the number of applicants that have ages that fall within the box of the boxplot = 10

Hope this Helps!!!

Answer:

E

E is the only one that ends with 70 and is also all multiples of 6.

Answer:

The answer is D

Step-by-step explanation:

Answer:

Nickel= 1.8 kg

Zinc= 0.4 kg

Copper= 1.8 kg

Step-by-step explanation:

7:2:9

7=nickel

2=zinc

9=copper

7+2+9=18

18×2=36

7×2=14 2×2=4 9×2=18

Divide by 10

14÷10=1.4 4÷10=0.4 18÷10=1.8

1.8+1.4+0.4= 3.6

1.8=nickel

0.4=zinc

1.8=copper

Amount of each metal are needed to make 3.6 kg of this alloy are,

Nickel = 1.4 kg

Zinc = 0.4 kg

Copper = 1.8 kg

We have to given that,

An alloy is composed of nickel, zinc, and copper in a ratio of 7 : 2 : 9.

Now, We can assume that,

Amount of nickel = 7x

Amount of zinc = 2x

Amount of copper = 9x

Hence, We get;

⇒ 7x + 2x + 9x = 3.6

⇒ 18x = 3.6

⇒ x = 3.6 / 18

⇒ x = 0.2

Thus, WE get;

Amount of nickel = 7x

                           = 7 × 0.2

                           = 1.4 kg

Amount of zinc = 2x

                        = 2 × 0.2

                        = 0.4 kg

Amount of copper = 9x

                            = 9 × 0.2

                            = 1.8 kg

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Answer:

Yes, That is correct.

Step-by-step explanation:

Example: Multiply 0.05 by 1.1

start with:

 0.05 × 1.1

multiply without decimal points:

 5 × 11 = 55

0.05 has 2 decimal places,

and 1.1 has 1 decimal place,

so the answer has 3 decimal places:

 0.055

Priya's method easy finds the product of decimals because multiplying whole numbers is easier than multiplying decimal numbers.

Given that, Priya finds (1.05) × (2.8) by calculating 105 × 28 and then moving the decimal point three spaces to the left.

We need to explain why Priya's method makes sense.

To multiply decimals, first, multiply as if there is no decimal. Next, count the number of digits after the decimal in each factor. Finally, put the same number of digits behind the decimal in the product.

Now, 105 × 28 = 2,940

Moving the decimal point three spaces to the left, we get 2.940.

Also, (1.05) × (2.8) =2.940

Therefore, Priya's method easy finds the product of decimals, because multiplying whole numbers is easier than multiplying decimal numbers.

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Your question is incomplete, probably the complete question/missing part is:

Priya finds (1.05) × (2.8) by calculating 105 × 28 and then moving the decimal point three spaces to the left. Why does Priya's method make sense?

Answer: The runner is going exactly 10.2774922919 meters per second

Step-by-step explanation: Using the ratio 100:9.73, we can simplify that to 10.2774922919:1

Answer:

Step-by-step explanation:let x be the number of bicycles,

let y be the number of tricycles

given x+y=20→equation 1

also given 2x+3y=44→equation 2

from eq 1, y=20-x

substitudin ineq 2

2x+3(20-x)=44

2x+60-3x=44

60-x=44

-x=44-60

=-16

x=+16

then y=20-16=4

no of bicycles=16

no of tricycles=4

hope this helps

plzz mark me brainliest

Answer:

Value of y > 0 at [tex]x = \{0, 1, 2, 3, 4\}[/tex]

Step-by-step explanation:

As seen from the graph attached in answer area as well, The graph is above  x-axis (i.e. y value of equation) only when x has values {0, 1, 2, 3, 4}.

At x = 0:

[tex]y = -|0-2| + 2 \\\Rightarrow -2 + 2\\ \Rightarrow y = 0[/tex]

At x = 1:

[tex]y = -|0-1| + 2 \\\Rightarrow -1 + 2\\ \Rightarrow y = 1[/tex]

At x = 2:

[tex]y = -|2-2| + 2 \\\Rightarrow 0 + 2\\ \Rightarrow y = 2[/tex]

At x = 3:

[tex]y = -|3-2| + 2 \\\Rightarrow -1 + 2\\ \Rightarrow y = 1[/tex]

At x = 4:

[tex]y = -|4-2| + 2 \\\Rightarrow -2 + 2\\ \Rightarrow y = 0[/tex]

Value of y > 0 at [tex]x = \{0, 1, 2, 3, 4\}[/tex]

Answer:

Option C

(would really, reallly appreciate the brainliest)

Step-by-step explanation:

plotted with desmos (free online math tool)

The function whose graph is given is y = 0.5cosx

A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

Given that, a graph we need to find its function,

To analyze the given graph let us,

From the given graph we can pick the points which can tell us about the nature of the cosine function we took,

It is clear from the graph that the function plotted is equal to the standard function i.e. cos(x)

in cos(x) ⇒ we have minima at (-π, 1)

in the given graph, the function has a maximum and touches the y-axis at (0, 0.5)

Therefore, 0.5cosx is the function represented in the graph.

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