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Colt1911 [192]
4 years ago
9

I need help please and thanks

Mathematics
1 answer:
spayn [35]4 years ago
8 0

1st draw probability = 5/8

2nd draw probability = 4/7

probability of drawing two blue cards: 5/8 x 4/7 = 5/14

answer: 5/14

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Suppose Julio is a veterinarian who is doing research into the weight of domestic cats in his city. He collects information on 1
fomenos

Answer:

Estimate of the standard error of the mean = 0.38 lb

Step-by-step explanation:

We are given the following in the question:

Sample mean, \bar{x} = 10.87 lb

Sample size, n = 131

Standard deviation, σ = 4.31 lb

We have ti find the estimate of the standard error of the mean.

Formula for standard error:

S.E= \dfrac{\sigma}{\sqrt{n}}

Putting values, we get,

S.E = \dfrac{4.31}{\sqrt{131}} = 0.3766 \approx 0.38

0.38 lb is the standard error of the mean.

7 0
3 years ago
Find the equation of a line that passes through these two points
Sati [7]

Answer:

y = -2x + 2

Step-by-step explanation:

The equation of a line is y = mx + b.

First we want to find m, the slope. We can used the coordinates to do so: m = \frac{6-(-4)}{-2-3}\\m = \frac{10}{-5}\\m = -2

Now we know that the equation is y = -2x + b. We can plug in the coordinate (3, -4) to find b.

y = -2x + b\\-4 = -2(3) + b\\-4 = -6 + b\\b = 2

So the equation is y = -2x + 2.

6 0
3 years ago
Read 2 more answers
Use compatible number to find two estimates<br><br> 17 divided by 1,569
Bess [88]

The answer to that problem is 0.011

6 0
4 years ago
Read 2 more answers
PLEASE HELP!!!
Margarita [4]
A) 17.69

You just substitute the h for 3
3 0
4 years ago
7th grade math I needs some help
kiruha [24]

Answer:

Step-by-step explanation:

To find 5e. El change, find the difference between week 1 and 1.

56.92-(-16.54) = 56.92+16.54 = -73.46.

Note: this is negative, because we are calculating the difference.

Hope this helps

4 0
3 years ago
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