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4 years ago

-1 3/20-2 7/20 plz show work. Negatives and positives

1 answer:

5 0

First you turn both fractions into improper fractions, (-23/20-47/20) then yousubtract the numerator(the top of the fraction) -23-47=-70--> -70/20=7/2. Hope i helped;)

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A line that includes the point (2, 3) has a slope of

grin007 [14]

Answer:

y-3=-1/3(x-2)

Step-by-step explanation:

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3 years ago

Prove that 3:8 is equivalent to 12:32 use diagrams to support your answer. Use the description of equivalent ratios to support y

baherus [9]

12 divided by 3 = 4

therefore both sides must be multiplied by 4

3*4 = 12
8*4 = 32

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4 years ago

Display the set of data in a histogram.

Scrat [10]

Answer:

B (The second graph)

Step-by-step explanation:

The order of frequencies of the chart:

1, 13, 9, 8, 12 reference

The order of frequencies of the graphs:

1) 1, 13, 9, 12, 8 incorrect

2) 1, 13, 9, 8, 12 correct

3) 9, 13, 1, 8, 12 incorrect

4) 13, 1, 9, 8, 12 incorrect

Therefore, the second graph 'b', is correct!

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3 years ago

Find the exact circumference of a circle with the given radius.

kolbaska11 [484]

Answer:

The the exact circumference of a circle with the given radius is 200.96.

Step-by-step explanation:

Here, the radius of the given circle = 32 cm

The, Circumference of a Circle = 2 π r

So, here C = 2 x 3.14 x 32 (taking π = 3.14)

or C = 200.96

Hence, the the exact circumference of a circle with the given radius is 200.96.

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3 years ago

Stephen evaluated (6.34 x 10^-7)(4.5 x 10^3). His work is shown below. Which statements describe his errors? Check all that appl

Lostsunrise [7]

We have the following expression:
(6.34 x 10 ^ -7) (4.5 x 10 ^ 3)
The solution shown is:
(6.34 x 10 ^ -7) (4.5 x 10 ^ 3)
(6.34 x 4.5) (10 ^ -7 x 10 ^ 3)
28.53 x 10 ^ -4
-28.53 x 10 ^ 4
-2.853 x 10 ^ 3
The errors are:
A. He changed the sign of the coefficient. A negative exponent does not affect the sign of a coefficient in scientific notation. The sign of the exponent determines the direction the decimal is moved in.
D. He got the wrong value for the coefficients; 28.53 x 10^-4 is not possible. The coefficients in scientific notation are always greater than 1, but less than 10.

3 0

4 years ago

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