All categories

3 years ago

Clearer photo—————————

Mathematics

1 answer:

VikaD [51]3 years ago

7 0

Answer:

Step-by-step explanation:

Since all triangles have to add up to 180, we can do the sum of the two angles we know minus 180. 90+61=151, 180-151=29

So your answer would be 29

You might be interested in

2(6+2x-1) pleas help fast

Nat2105 [25]

Answer:

4x+10

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

I would appreciate some help on this if anyone could answer it

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

yea

7 0

3 years ago

5(7-4) written and answered in distributive property

MrRa [10]

(5*7) - (5*4) = 35 - 20 = 15
you "distribute" the 5 but multiplying it to both numbers in the parentheses, and doing the subtraction.

7 0

3 years ago

Read 2 more answers

SUZANNE rode her bike 15mph for 12 mins then rode 12mph for 20 mins how far did she ride

Anika [276]

Answer:

7 miles

Step-by-step explanation:

Distance = Rate times Time

Distance #1: (15 mph)(12/60 hr) = 3 miles

Distance #2: (12 mph)(20/60 hr) = 4 miles

Total distance ridden = 7 miles

7 0

3 years ago

Suppose a simple random sample of size nequals36 is obtained from a population with mu equals 74 and sigma equals 6. (a) Descri

OlgaM077 [116]

Part a)

The simple random sample of size n=36 is obtained from a population with

$\mu = 74$

and

$\sigma = 6$

The sampling distribution of the sample means has a mean that is equal to mean of the population the sample has been drawn from.

Therefore the sampling distribution has a mean of

$\mu = 74$

The standard error of the means becomes the standard deviation of the sampling distribution.

$\sigma_ { \bar X } = \frac{ \sigma}{ \sqrt{n} } \\ \sigma_ { \bar X } = \frac{ 6}{ \sqrt{36} } = 1$

Part b) We want to find

$P(\bar X \:>\:75.9)$

We need to convert to z-score.

$P(\bar X \:>\:75.9) = P(z \:>\: \frac{75.9 - 74}{1} ) \\ = P(z \:>\: \frac{75.9 - 74}{1} ) \\ = P(z \:>\: 1.9) \\ = 0.0287$

Part c)

We want to find

$P(\bar X \: < \:71.95)$

We convert to z-score and use the normal distribution table to find the corresponding area.

$P(\bar X \: < \:71.95) = P(z \: < \: \frac{71.9 5- 74}{1} ) \\ = P(z \: < \: \frac{71.9 5- 74}{1} ) \\ = P(z \: < \: - 2.05) \\ = 0.0202$

Part d)

We want to find :

$P(73\:$

We convert to z-scores and again use the standard normal distribution table.

$P( \frac{73 - 74}{1} \:< \: z$

5 0

3 years ago