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3 years ago

If you can answer these two questions you can get 15 points

Mathematics

2 answers:

jeyben [28]3 years ago

7 0

Answer:

d4gcddkekdksmwldmemfnffggtppp e o

irina1246 [14]3 years ago

6 0

Answer:

formula is y= mx + c (c=y intercept)

1) slope= m= -0.75, y intercept = -2

y= -0.75x - 2

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2)slope=m=0.5, y intercept = 8

y= 0.5x + 8

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Answer:

The order pair is (2,0)

Step-by-step explanation:

On the picture

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2 years ago

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A circle has a circumference of 28.26cm. what is the area of the circle? show work please

earnstyle [38]

-circumference is equal to pi×diameter, area is equal to pi×radius^2
-28.26÷3.14=9, 9÷2=4.5, 4.5×4.5=20.25, and 20.25×3.14=63.585
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3 years ago

Assume that thermometer readings are normally distributed with a mean of degrees and a standard deviation of 1.00degrees C. A th

Andrew [12]

Answer:

0.2684 is the probability that the temperature reading is between 0.50 and 1.75.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 0 degrees

Standard Deviation, σ = 1 degrees

We are given that the distribution of thermometer readings is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(Between 0.50 degrees and 1.75 degrees)

$P(0.50 \leq x \leq 1.75)\\\\ = P(\displaystyle\frac{0.50 - 0}{1} \leq z \leq \displaystyle\frac{1.75-0}{1})\\\\ = P(0.50 \leq z \leq 1.75)\\= P(z \leq 1.75) - P(z < 0.50)\\= 0.9599 - 0.6915 = 0.2684 = 26.84\%$

0.2684 is the probability that the temperature reading is between 0.50 and 1.75.

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3 years ago

Find the volume of a cone that has a radius of 3 inches and a height of 9 inches. Use 3.14 for pi and round your answer to the n

aalyn [17]

Volume of the cone is 100 in³

Step-by-step explanation:

Step 1: Volume of a cone = 1/3 πr²h. Find volume of the cone where r = 3 inches and h = 9 inches.

Volume = 1/3 × 3.14 × 3² × 9

= 84.78 in³ ≈ 100 in³ (rounding off to nearest hundredth)

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3 years ago

Again you don’t need to answer all of them but if you can do some that would be wonderful!

Maru [420]

Answer:

17) x=7

18) x= -26

19) x= -8

20) x= 6

Step-by-step explanation:

17) is congruent

18) is supplementary

19) is congruent

20) is congruent

8 0

2 years ago

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