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3 years ago

PLEASE HELP MEEEEEEEEEEEEEEEEEEEe

Mathematics

1 answer:

GREYUIT [131]3 years ago

8 0

Answer:

See below ~

Step-by-step explanation:

For the question with colored rectangles, it asks to find the area.

The area can be found by multiplying the dimensions of the rectangle.

Blue rectangle :

A = 10 ft. x 6 ft.
A = 60 ft²

Green rectangle :

A = 12 cm. x 8 cm.
A = 96 cm²

Question 13 :

Here, we are given 2 rows and 7 columns
Take them as the dimensions
Hence, area = 2 x 7 = 14 square units

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Select the polygon with the greatest number of sides.

Paha777 [63]

Hello there! The answer is A. Octagon.

A. Octagon- An octagon is an 8-sided shape.

B. Pentagon - A pentagon is a 5-sided shape.

C. Hexagon - A hexagon is a 6-sided shape.

D.Triangle - A triangle is a 3-sided shape.

This means that A is the correct choice since 8 is greater than 5, 6, or 3. I hope this helped answer your question!

8 0

4 years ago

HELP ASAP WILL MARK BRAINLIEST

OLga [1]

Answer:

A- about 43.98

B- about 17.59

C- 32.99

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Based on the side lengths given (a, b, and c), which triangles are right triangles?

Len [333]

A=6, b=8, c=10 is the only one i believe. Sorry if I'm wrong.

6 0

4 years ago

Each year, all final year students take a mathematics exam. It is hypothesised that the population mean score for this test is 1

Yuri [45]

Answer:

90% confidence interval for the population mean test score is [95.40 , 106.59]

Step-by-step explanation:

We are given that the population mean score for mathematics test is 115. It is known that the population standard deviation of test scores is 17.

Also, a random sample of 25 students take the exam. The mean score for this group is 101.

The, pivotal quantity for 90% confidence interval for the population mean test score is given by;

P.Q. = $\frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

where, X bar = sample mean = 101

$\sigma$ = population standard deviation

n = sample size = 25

So, 90% confidence interval for the population mean test score, $\mu$ is ;

P(-1.6449 < N(0,1) < 1.6449) = 0.90

P(-1.6449 < $\frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } }$ < 1.6449) = 0.90

P(-1.6449 * $\frac{\sigma}{\sqrt{n} }$ < ${Xbar-\mu}$ < 1.6449 * $\frac{\sigma}{\sqrt{n} }$ ) = 0.90

P(X bar - 1.6449 * $\frac{\sigma}{\sqrt{n} }$ < $\mu$ < X bar + 1.6449 * $\frac{\sigma}{\sqrt{n} }$ ) = 0.90

90% confidence interval for $\mu$ = [ X bar - 1.6449 * $\frac{\sigma}{\sqrt{n} }$ , X bar + 1.6449 * $\frac{\sigma}{\sqrt{n} }$ ]

= [ 101 - 1.6449 * $\frac{17}{\sqrt{25} }$ , 10 + 1.6449 * $\frac{17}{\sqrt{25} }$ ]

= [95.40 , 106.59]

Therefore, 90% confidence interval for the population mean test score is [95.40 , 106.59] .

7 0

4 years ago

Factories x^2 +4√2x + 6?

fiasKO [112]

Answer:

IT SHOULD BE X^2-4√2X+6

Step-by-step explanation:

SEE IMAGE FOR ANSWER...

7 0

3 years ago