All categories

3 years ago

Please help I’ll give you Brainliest

Mathematics

2 answers:

vladimir2022 [97]3 years ago

6 0

Answer:

30 degrees/ An Acute Angle (If I'm wrong please comment on my answer)

Step-by-step explanation:

Alina [70]3 years ago

4 0

180 i believe it looks like it’d be supplementary and plus it is a straight line

You might be interested in

Help and explain for 7

Keith_Richards [23]

Divide 2,512 by 3.14 and round to the nearest whole number
if you need the answer comment below
<span />

3 0

4 years ago

Read 2 more answers

An article gave the accompanying data on ultimate load (kN) for two different types of beams. Assuming the underlying distributi

krok68 [10]

Answer:

The 99% confidence interval for the difference between the true average load for the fiberglass beams and that for the carbon beams is (-11.937, -6.863).

Step-by-step explanation:

We have to calculate a 99% confidence interval for the difference between the true average load for the fiberglass beams and that for the carbon beams.

The sample 1 (Fiberglass), of size n1=26 has a mean of 33.4 and a standard deviation of 2.2.

The sample 2 (Carbon), of size n2=26 has a mean of 42.8 and a standard deviation of 4.3.

The difference between sample means is Md=-9.4.

$M_d=M_1-M_2=33.4-42.8=-9.4$

The estimated standard error of the difference between means is computed using the formula:

$s_{M_d}=\sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma_2^2}{n_2}}=\sqrt{\dfrac{2.2^2}{26}+\dfrac{4.3^2}{26}}\\\\\\s_{M_d}=\sqrt{0.186+0.711}=\sqrt{0.897}=0.9473$

The critical t-value for a 99% confidence interval is t=2.678.

The margin of error (MOE) can be calculated as:

$MOE=t\cdot s_{M_d}=2.678 \cdot 0.9473=2.537$

Then, the lower and upper bounds of the confidence interval are:

$LL=M_d-t \cdot s_{M_d} = -9.4-2.537=-11.937\\\\UL=M_d+t \cdot s_{M_d} = -9.4+2.537=-6.863$

The 99% confidence interval for the difference between the true average load for the fiberglass beams and that for the carbon beams is (-11.937, -6.863).

8 0

4 years ago

Write the number three hundred forty two thousand six hundred eight in number form

Marat540 [252]

Answer:

342:608

Step-by-step explanation:

from the start and end up to the last

4 0

3 years ago

Convert the following to powers first then simplify and then write answer as a radical

Arada [10]

Answer:

$\sqrt[15]{m^2n^4}$

Step-by-step explanation:

$(\sqrt[5]{m^2n^4} )^{\frac{1}{3}}\\\\\implies( (m^2n^4)^{\frac{1}{5}})^{\frac{1}{3}}\\\\\implies (m^2n^4)^{\frac{1}{5}\times \frac{1}{3}}\\\\\implies (m^2n^4)^{\frac{1}{15}}\\\\\implies (m^2)^{\frac{1}{15}} (n^4)^{\frac{1}{15}}\\\\\implies m^{\frac{2}{15}} n^{\frac{4}{15}}$

$\sqrt[15]{m^2n^4}$

8 0

2 years ago

The length of a rectangle is twice as long its width. The perimeter of this rectangle is how many times longer than the shorter

butalik [34]

Answer:

6 times more longer

Step-by-step explanation:

3 0

3 years ago