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3 years ago

If a=6 and b=7 what is the scale factor from a to b

Mathematics

1 answer:

enyata [817]3 years ago

7 0

Answer:

6:7

Step-by-step explanation:

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A weatherman stated that the average temperature during July in Chattanooga is 80 degrees or less. A sample of 32 Julys is taken

baherus [9]

Answer:

The correct set of hypotheses is

$H_{0}$ : d=80 degrees

$H_{0}$ : d>80 degrees

Step-by-step explanation:

The weatherman claims that the average temperature during July in Chattanooga is 80 degrees or less. To test this claim, following hypotheses need to be taken:

Let d be the the average temperature during July in Chattanooga, then

$H_{0}$ : d=80 degrees

$H_{0}$ : d>80 degrees

7 0

3 years ago

Erin bought Christmas cards for $2 each to send to her family and friends. Which variable is the dependent variable?

Vinil7 [7]

Answer:

Its the price of the Christmas cards because the price depends on how many cards you buy.

Step-by-step explanation:

3 0

4 years ago

Which of the following equations are written in standard form?

Ostrovityanka [42]

Answers A, C, and D are written in standard form.

Answer B is NOT written correctly in standard form.

8 0

3 years ago

A random sample of 1000 registered voters in Flagstaff found 760 registered voters who support immigration reform. Find a 95% co

dusya [7]

Answer: $(0.7335,\ 0.7865)$

Step-by-step explanation:

Given : A random sample of 1000 registered voters in Flagstaff found 760 registered voters who support immigration reform.

sample size : n= 1000

sample proportion: $\hat{p}=\dfrac{760}{1000}=0.76$

Critical value for 95% confidence interval = $z_{\alpha/2}=1.96$

Confidence interval :

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.76\pm(1.96)\sqrt{\dfrac{0.76(1-0.76)}{1000}}\\\\=0.76\pm0.0264708866493\\\\\approx0.76\pm0.0265\\\\=(0.76-0.0265,\ 0.76+0.0265)=(0.7335,\ 0.7865)$

Hence, the 95% confidence interval for the true percent of registered voters in Flagstaff who support immigration reform: $(0.7335,\ 0.7865)$

6 0

4 years ago

What is the constant of proportionality?

devlian [24]

Answer:

0.04 is the most common correct answer for the the formula

4 0

3 years ago