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Aliun [14]
2 years ago
12

Please answer this question needed ASAP!

Mathematics
1 answer:
kow [346]2 years ago
7 0

Answer:

x+39=180

x=180-39

x=141

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Please help with easy question
GuDViN [60]

Answer:

B

Step-by-step explanation:

The first term has a power and the second term doesnt have a power.

Hope it helped. Pls mark me as brainliest.

3 0
2 years ago
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Sing fitness evaluations to determine fitness levels is important to __________.
olga_2 [115]

Answer:

D, All of the above.

Step-by-step explanation:

(A. set fitness goals

B. track performance

C. spot areas for improvement)

mark brainliest ??

6 0
3 years ago
Babies born after 40 weeks gestation have a mean length of 52.2 centimeters (about 20.6 inches). Babies born one month early hav
Sveta_85 [38]

Answer:

a) Z = -2.88

b) Z = -0.96

c) 40 weeks gestation babies

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

a. Find the standardized score (z-score), relative to all U.S. births, for a baby with a birth length of 45 cm.

Here, we use \mu = 52.2, \sigma = 2.5. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{45 - 52.2}{2.5}

Z = -2.88

b. Find the standardized score of a birth length of 45 cm. for babies born one month early, using 47.4 as the mean.

Here, we use \mu = 47.4, \sigma = 2.5. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{45 - 47.4}{2.5}

Z = -0.96

c. For which group is a birth length of 45 cm more common?

For each group, the probability is 1 subtracted by the pvalue of Z.

Z = -2.88 has a lower pvalue than Z = -0.96, so for Z = -2.88 the probability 1 - pvalue of Z will be greater. This means that for 40 weeks gestation babies a birth length of 45 cm is more common.

3 0
2 years ago
Please help me with this.. I am DYING.. I hav no idea what Im getting wrong..?
Oliga [24]

Answer:

12 2/12

or 12 1/6 ( simplified fraction)

Step-by-step explanation:

first add the whole numbers together :7+5-4+3=12-1=11 ( same denominator 12)

1/12 +7/12 -5/12 +11/12 = 14/12  ( improper fraction)

= 1 2/12 mixed fraction

11 + 1 2/12=12 2/12 or 12 1/6 ( simplified fraction)

7 0
3 years ago
Read 2 more answers
Ma Bernier has 52 cats and dogs in her house the number of cats is three times the number of dogs how many cats and dogs are in
frosja888 [35]

Answer:

dogs - 13

cats - 39

Step-by-step explanation:

Let the number of dogs Ma Bernier have be represented with d

She has 3 times as many cats as dogs, the number of cats she has :

cats = 3d

The sum of the cats and dogs is 52

d + 3d = 52

4d = 52

divide both sides of the equation by 4

d = 13

She has 13 dogs

Cats = 3d

= 3 x 13 = 39

3 0
3 years ago
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