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ANTONII [103]
2 years ago
10

Plsss help ASAP I DONT have timeeeee

Mathematics
2 answers:
Snowcat [4.5K]2 years ago
7 0

Answer:

?

Step-by-step explanation:

you have to find a ratio and multiply 8 by something to get the demensions

vitfil [10]2 years ago
5 0

Answer:

It will still be a frame

Step-by-step explanation:

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A object 6.3 feet tall casts a shadow of 18.9 feet long, so a oject that is 13.8 feet tall casts a shadow of?
erik [133]
Use similar triangles (see the picture I drew at the bottom)

\frac{6.3}{13.8} = \frac{18.9}{x} \\6.3x=(13.8)(18.9)\\6.3x=260.82\\x=41.4

4 0
2 years ago
Read 2 more answers
Can some pls help me
Lilit [14]

Answer:

B) -3

Step-by-step explanation:

The sum of the three angles of any triangle is equal to 180 degrees.

180-50-87 = 43.

43 = x+46

x = 43-46

x = -3

7 0
2 years ago
18. A set of data has a sample mean of 65.4 and a standard deviation of 1.2. If the sample size is 45, what is the 99% confidenc
Agata [3.3K]

Given:

Sample mean = 65.4

Standard deviation = 1.2

Sample size = 45

Confidence level = 99%

To find:

The confidence interval.

Solution:

The formula for confidence interval is

CI=\overline{x}\pm z^*\dfrac{s}{\sqrt{n}}

where, \overline{x} is sample mean, z* is confidence value, s is standard deviation and n is sample size.

Confidence value or z-value at 99% = 2.58

Putting the given in the above formula, we get

CI=65.4\pm 2.58\times \dfrac{1.2}{\sqrt{45}}

CI=65.4\pm 0.46

CI=65.4-0.46\text{ and }CI=65.4+0.46

CI=64.94\text{ and }65.86

Therefore, the correct option is D.

5 0
2 years ago
Meh needs some help once again
Ymorist [56]
1:1 because you simplify
7 0
2 years ago
A college finds that of the 861 students taking math, 525 students are business majors and 202 students are taking math and are
3241004551 [841]

Answer:

Step-by-step explanation:

202 students taking math and are business majors

only math, would be (861 - 202) = 659

only business majors, would be (525 - 202) = 323

so there are (659 + 323) = 982 that are math or business majors

5 0
2 years ago
Read 2 more answers
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