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3 years ago

15,7,7 can a triangle be formed?

Mathematics

1 answer:

nataly862011 [7]3 years ago

3 0

No needs to have three sides

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Distributive property 27+36

UkoKoshka [18]

Answer:

I think it will be equal to 63

Step-by-step explanation:

27+46=63

3 0

3 years ago

If (-2) = -14 for f(x) = 3x -b; find b? -

Verizon [17]

Answer:

The value of b is 8.

Step-by-step explanation:

The given function is,

$f(x) = 3x -b$

The given data is,

$f(-2)=-14$

i.e when the value of x is -2, then the value of the function is -14.

Putting all the values,

$\Rightarrow -14 = 3(-2) -b$

$\Rightarrow -14 = -6 -b$

$\Rightarrow b=-6+14$

$\Rightarrow b=8$

Therefore, the value of b is 8.

5 0

3 years ago

Read 2 more answers

One weekend, Paola started reading a book for school. She read 35 pages of the book on Saturday. On Sunday she read 15 pages an

Sidana [21]

35 + 15 x 4 = 60. Paola read 60 pages in total.

6 0

3 years ago

The FDA regulates that fresh Albacore tuna fish that is consumed is allowed to contain 0.82 ppm of mercury or less. A laboratory

puteri [66]

Answer:

$n=(\frac{2.17(0.143)}{0.023})^2 =182.03 \approx 183$

So the answer for this case would be n=183 rounded up to the nearest integer

Step-by-step explanation:

Information provided

$\bar X$ represent the sample mean

$\mu$ population mean (variable of interest)

$\sigma = 0.143$ represent the population standard deviation

n represent the sample size

$ME = 0.023$ the margin of error desired

Solution to the problem

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =0.023 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The confidence level is 97% or 0.97 and the significance would be $\alpha=1-0.97=0.03$ and $\alpha/2 = 0.015$ then the critical value would be: $z_{\alpha/2}=2.17$ , replacing into formula (5) we got:

$n=(\frac{2.17(0.143)}{0.023})^2 =182.03 \approx 183$

So the answer for this case would be n=183 rounded up to the nearest integer

4 0

3 years ago

Van found the change in a scale factor. His work is shown below. What error did Ivan make?

8090 [49]

Answer:

Ivan wrote the ratio incorrectly. The ratio should be written as the old length to the new length, so it should be 35

, which reduces to 7

. When going from larger to smaller dimensions, the change in the scale factor is a ratio that looks like an improper fraction, with a larger number in the numerator and a smaller number in the denominator.

Step-by-step explanation:

4 0

3 years ago