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3 years ago

I picked a and c correct me if I'm wrong I have until the 19th to bring my stuff up

Mathematics

1 answer:

k0ka [10]3 years ago

4 0

Answer:

I believe they are correct. Sorry this is late

Step-by-step explanation:

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Which expression means 7 more than a number?

Kisachek [45]

The answer is B

- <span>"More" means added to, or addition. So 7 more than 'A number' is: </span><span>d + 7</span>

4 0

3 years ago

20 grams of KCl to moles of

Irina-Kira [14]

0.013413582325191 got it from google

4 0

3 years ago

4-4x=12+16x will gib brainleist i promise ;)

Delicious77 [7]

Answer:

4-4x=12+16x

−4x+4=16x+12

−4+4−4=16+12−4

-4x=16x+8

-4x-16x=16x+8-16x

-20x=8

-20x/-20 = 8/-20

x= -2/5

5 0

3 years ago

Nick's dad wanted to measure the length of his backyard and asked Nick to do this with his footsteps. Since it was winter, they

Lerok [7]

Answer:

2244 cm

Step-by-step explanation:

The first first thing we must do is find the LCM of the following numbers

(51; 68) = 204.

This means that the first time they coincide is at 204.

Now, since his steps always coincide after 204

In Nick's case

Nick's 204 ÷ 51 = 4th step

and in the case of the father

204 ÷ 68 of his father = 3rd step.

Which means that in the 204 cm distance, there will be a total of 6 foot steps, except in the first 204 cm when your "initial" step is counted.

Replacing these values we have that the total distance will be:

67-1 (initial step) / (6 * 204) = 2244 cm

7 0

3 years ago

Suppose the correlation between height and weight for adults is +0.40. What proportion (or percent) of the variability in weight

Schach [20]

Answer:

We are given the correlation between height and weight for adults is 0.40.

We need to find the proportion of the variability in weight that can be explained by the relationship with height.

We know that coefficient of determination or R-square measures the proportion or percent of variability in dependent variable that can be explained by the relationship with independent variable. There the coefficient of determination is given below:

$R^{2}=r^{2}=0.40^{2}=0.16$

Therefore, the 0.16 or 16% of the variability in weight can be explained by the relationship with height

7 0

3 years ago