3 years ago

Jordan needs to write a 20-page

Mathematics

1 answer:

____ [38]3 years ago

5 0

The answer is 2 pages.

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An angle measures 7/9pi radians. What is the degree measure of the angle?

slamgirl [31]

2pirad=360 deg
so
xrad/2pi=ydeg/360
times both sides by 360 to solve for ydeg
180xrad/pi=ydeg
so

7/9pi rad
180(7/9pi)/pi=ydeg
140=ydeg

140 deg

A is answer

3 0

3 years ago

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Which function has exactly three distinct real zeros? A. h(x) = (x − 9)2(x − 4)2 B. h(x) = x(x + 7)2 C. h(x) = (x − 3)(x + 1)(x

Liula [17]

Answer:

D) h(x) = (x-2)^2 (x+4)(x-1)

Step-by-step explanation:

I had this question on a recent test and I got it right

I hope this helps! :)

5 0

3 years ago

A professor wants to estimate how many hours per week students study. A simple random sample of 78 students had a mean of 15.0 h

OleMash [197]

Answer:

interval=(15.085,14.9515)

Step-by-step explanation:

Table:

CI Z

85% 1.440

90% 1.645

95% 1.960

In order to find the interval/estimate of hours per week students study we consider the formula given below:

Interval=X± $\frac{Z*S}{\sqrt{n} }$

where:

X is the mean hours

Z is the value from Z distribution table of Confidence Interval

n is the sample size of students

S is the standard deviation

X=15, Z=1.645, S=2.3hours, n=78

Interval=15± $1.645*2.3/\sqrt{78}$

Interval=15±0.0485

interval=(15.085,14.9515)

7 0

3 years ago

Polly and Percy were sharing a bag ofjelly beans. The bag contained 52 orange, 63 lime, 72 cherry, 28 lemon and 65 grape. If Pol

wel

Answer:

Step-by-step explanation:

6 0

3 years ago

Nine times a number, diminished by 4, is 95

shepuryov [24]

Answer:

the number is 11

Step-by-step explanation:

"Diminished" is another word for subtraction, so our equation is : 9x - 4 = 95

Add 4 on each side: 9x = 99

Divide each side by 9: x = 11

I hope this helped, please mark Brainliest, thank you!

6 0

3 years ago

Read 2 more answers