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dedylja [7]
2 years ago
7

Identify the slope (m) for y=−7x.

Mathematics
1 answer:
Irina-Kira [14]2 years ago
6 0

Answer:

The slope-intercept form is y=mx+b y = m x + b , where m is the slope and b is the y-intercept. Using the slope-intercept form, the slope is −7 .

Step-by-step explanation:

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Step-by-step explanation:

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a scientist has 800 bacteria. with the use of antibiotics half of them die every 2 hours. how may are there after 16 hours
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Part A: Describe how you can decompose this shape into triangles. (2 points)
kvv77 [185]

Answer:

A: 6 triangles with height 10.4 inches each and base 12 inche

B: 62.4 square inches

C: 374.4 square inches

Step-by-step explanation:

Part A: You can form a triangle by connecting E to the top of the segment and connecting the top of the segment to D. Recreating this with each section will create 6 triangles with height 10.4 inches each and base 12 inches.

Part B: The area of a triangle is A = 1/2b*h. Substitute h = 10.4 and b = 12.

A = 1/2*10.4*12 = 62.4

Part C: There are 6 triangles each with area 62.4. So the area of the whole figure will be 6*62.4 = 374.4.

8 0
3 years ago
The trapezoid below has been enlarged by a scale of 1.5. A trapezoid with an area of 36 inches squared. What is the area of the
Viktor [21]

Answer:

B.  81\text{ in}^2

Step-by-step explanation:

We have been given that the trapezoid shown in the attachment has been enlarged by a scale of 1.5. We are asked to find the area of the enlarged trapezoid.

The area of the original trapezoid is 36 square inches.

Since each side of the trapezoid is enlarged 1.5 times, so the area of new trapezoid would be 2.25 times greater than area of original trapezoid.

The area would be 2.25 times greater because area is product of sum of lengths of parallel sides and height.

1.5\times 1.5=2.25

\text{Area of new trapezoid}=2.25\times 36\text{ in}^2

\text{Area of new trapezoid}=81\text{ in}^2

Therefore, the area of the enlarged trapezoid would be 81\text{ in}^2 and option B is the correct choice.

7 0
3 years ago
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Katena32 [7]

Answer: the smallest number of people required for the sample to meet the conditions for performing inference is 100

Step-by-step explanation:

Given that;

36% of US population has never been married

32% are divorced

27% are married

5% are widowed

Taking a simple random sample of individuals to test this claim;

we need expected count in each cell to be at least 5, here the smallest proportion is 5% = 0.05

so we only need to satisfy condition for its expected count;

n × 0.05 ≥ 5

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Therefore the smallest number of people required for the sample to meet the conditions for performing inference is 100

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