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kirill [66]
3 years ago
10

What is the unit rate in miles per hour of 8 miles in 45 minutes

Mathematics
1 answer:
ladessa [460]3 years ago
7 0
The unit in three miles is 5 rate oer hour hoped i helped ypu ouyt 
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A large spherical balloon is being deflated. When the radius of the balloon decreases from 10 ft to 5 ft, approximately how much
Xelga [282]
Volume of a sphere: V=(4/3)πr³
V1=(4/3)π10³
V2=(4/3)π5³
difference: (4/3)π10³-(4/3)π5³=(4/3)π875=3665
the answer is B.<span />
5 0
2 years ago
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What is the y-intercept of the line shown?
Marta_Voda [28]

Answer:

y-intercept = 3

Step-by-step explanation:

value that's on the y - axis

4 0
3 years ago
10 points!<br> Find the shape resulting from the cross-section of the cylinder.
Kay [80]

Answer:

Triangle

Step-by-step explanation:

cross section through the cone perpendicular will be a triangle with the base of the cone's base diameter.

3 0
3 years ago
Need help just need the answer need asap
Mamont248 [21]

Answer:

180

Step-by-step explanation:

7 0
2 years ago
Researchers conducted an experiment to test the effects of alcohol. Errors were recorded in a test of visual and motor skills fo
Jobisdone [24]

Answer:

H0: σ1=σ2

Ha : σ1 >σ2

B. Upper H 0H0​:

sigma Subscript 1 Superscript 2σ21equals=sigma Subscript 2 Superscript 2σ22

Upper H 1H1​:

sigma Subscript 1 Superscript 2σ21greater than>sigma Subscript 2 Superscript 2σ22

Step-by-step explanation:

The claim is  that the treatment group has errors that <em><u>vary significantly</u></em> more than the errors of the placebo group.

The claim is the alternative hypothesis and the opposite of claim is the null hypothesis.

Vary significantly means that it is greater than so we choose the alternate hypothesis of greater than and the null hypothesis will be equal to errors of the placebo group.

So the correct choice is B.

B. Upper H 0H0​:

sigma Subscript 1 Superscript 2σ21equals=sigma Subscript 2 Superscript 2σ22

Upper H 1H1​:

sigma Subscript 1 Superscript 2σ21greater than>sigma Subscript 2 Superscript 2σ22

Choice A,C and D all are incorrect.

This can be written as

H0: σ1=σ2

Ha : σ1 >σ2

5 0
2 years ago
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