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3 years ago

Classify the following triangle. Check all that apply.

Mathematics

2 answers:

AlladinOne [14]3 years ago

7 0

Equilateral and Acute, not 100% on the acute though

Alexxx [7]3 years ago

7 0

It is c I think I believe it is becuse I can see how the finagle makes a right angle as you can see sry if I’m wrong

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A. Use the one-mean t-interval procedure with the sample mean, sample size, sample standard deviation, and confidence level

PtichkaEL [24]

Answer:

a) (17.227, 22.773)

b) 2.773

c) 2.773

Step-by-step explanation:

Given:

Sample size, n = 25

Standard deviation, s = 4

Sample mean, x' = 20

Level of significance, a = 0.98 = 1 - 0.98 = 0.02

The degrees of freedom, df, for a t-distribution = n - 1 = 25 - 1 = 24

Using the t table, the Critical value = $t_\alpha _/_2, _d_f = t_0_._0_2_/_2, _2_4 = t_0_._0_1_, _2_4 = 3.4668$

Margin of error, E = $t_\alpha _/_2, _d_f * \frac{\sigma}{\sqrt{n}} = 3.4668 * \frac{4}{\sqrt{25}} = 2.773$

Limits of 98% confidence interval, we have:

Lower limit : x' - M.E = 20 - 2.773 = 17.227

Upper limit: x' + M.E = 20 + 2.773 = 22.773

Therefore, (17.227, 22.773) is 98% confidence interval.

b) Let's the margin of error by taking half the length of the confidence interval.

Since we are to use half the length of CI, we have:

$M.E = \frac{22.773 - 17.227}{2} = 2.773$

c) $M.E = t_\alpha _/_2, _d_f *s/\sqrt{n}$

$= t * \frac{s}{\sqrt{n}} = 3.4668 * \frac{4}{\sqrt{25}} = 2.773$

4 0

3 years ago

PLEASE I NEED THE ANSWER QUICK v + 25 < 5 v = ?

NemiM [27]

$\huge\text{Hey there!}$

$\mathsf{v + 25 < 5}$

$\large\textsf{SUBTRACT 25 to BOTH SIDES}$

$\mathsf{v + 25 - 25 < 5 - 25}$

$\large\textsf{CANCEL out: 25 - 25 because that gives 0}$

$\large\textsf{KEEP: 5 - 25 because it gives us v or solve for it}$

$\mathsf{v < 5 - 25}$

$\mathsf{5 - 25 = -20}$

$\boxed{\boxed{\large\textsf{Answer: }\mathsf{\bf v < -20}}}\large\checkmark\\\boxed{\boxed{\mathsf{\bf It\ is\ an\ O P E N E D\ circle\ on\ -20\ shaded\ to\ the\ left}}}$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

5 0

3 years ago

Which is the solution to this equation 3(d+2)-12=d-2 A. d=2 B. d=4 C. d=8 D. d=10

stich3 [128]

Answer:

Step-by-step explanation:

C.d=8 ?

8 0

3 years ago

Which of the following values are in the range of the function graph below

Paha777 [63]

It's asking "what are the set of y coordinate values for all of the points on the red line?"

In this case, all of the points on this red line have a y coordinate of y = 6. Two such points on this red line are (0,6) and (1,6)

So that's why the only answer is choice D) 6. This is the only number in the range. The range is the set { 6 }. No other number is in the range, so no other choice A, B, C, E, F are true

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Answer: Choice D) 6
(note: none of the other boxes are checked off)

8 0

3 years ago

How many pounds are in 4,256 grams

Alex73 [517]

9.38 pounds are in 4,256 grams

4 0

3 years ago

Classify the following triangle. Check all that apply.​

Classify the following triangle. Check all that apply.