All categories

3 years ago

Giving brainliest answer

Mathematics

1 answer:

andrew-mc [135]3 years ago

8 0

Answer:

Step-by-step explanation:

-5 represents the rate at which the temperature drops while 54 represents the initial temperature.

You might be interested in

John left a $9.50 tip for his waitress which was 25% of his bill how much was johns bill

miss Akunina [59]

25% of what is 9.50..

0.25x = 9.50
x = 9.50 / 0.25
x = 38

so Johns bill was $ 38

4 0

4 years ago

A restaurant sold 9 hot dogs every day for a week. How many hot dogs were sold during the week?

tresset_1 [31]

Answer:

Step-by-step explanation:

9 hotdogs/Day

7 Days in a week

9 times 7 = 64

4 0

3 years ago

Need help with this problem

maks197457 [2]

Answer:

The slope of the red line is also 8

Step-by-step explanation:

Parallel lines never meet. So, they always have the same slope. If they had different slopes, then they would meet on the graph at some point. However, since the lines have the same slope, they will never meet since they proportionally grow at the same rate.

4 0

3 years ago

Read 2 more answers

Of 200 youthful gamers (under 18) who tried the new Z-Box-Plus game, 160 rated it "excellent," compared with only 144 of 200 adu

beks73 [17]

Answer:

Correct option is (c). 1.873.

Step-by-step explanation:

The hypothesis can be defined as:

H₀: There is no difference between the two proportions.

Hₐ: There is a difference between the two proportions.

Given:

$X_{1} = 160,\ n_{1}=200\\X_{2} = 144,\ n_{2}=200$

The sample proportion of youthful gamers who tried the new Z-Box-Plus game and rated it "excellent," is:

$\hat p_{1}=\frac{X_{1}}{n_{1}} =\frac{160}{200} =0.80$

The sample proportion of adult gamers who tried the new Z-Box-Plus game and rated it "excellent," is:

$\hat p_{2}=\frac{X_{2}}{n_{2}} =\frac{144}{200} =0.72$

The population proportion of gamers who rated the game as "excellent" is:

$P=\frac{X_{1}+X_{2}}{n_{1}+n_{2}} =\frac{160+144}{200+200}= 0.76$

The test statistic is:

$z=\frac{\hat p_{1}-\hat p_{2}}{\sqrt{P(1-P)[\frac{1}{n_{1}}+\frac{1}{n_{2}} ]} } =\frac{0.80-0.72}{\sqrt{0.76(1-0.76)[\frac{1}{200}+\frac{1}{200} ]} }=1.873$

Thus, the value of the test statistic is 1.873.

The correct option is (c).

5 0

3 years ago

F(a) = 54 +3+1; Find f(o)

KengaRu [80]

Answer:

sum of two function

Step-by-step explanation:

5 0

4 years ago