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brilliants [131]
2 years ago
9

In

Mathematics
1 answer:
madreJ [45]2 years ago
4 0

Answer:

7.7

Step-by-step explanation:

use law of cosines

c² = a² + b² - 2ab * cosC

c² =  16² + 10² - 2(16)(10)cos22

c² =  256 + 100 - 320 * 0.927183854566787

c² = 59.3011665386

c ≈ 7.7

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Find the largest prime divisor of 76^2 − 1.
saveliy_v [14]

Answer:

11

Step-by-step explanation:

This is a difference of squares and therefore can be written as (76-1)(76+1)=(75)(77).

So lets look at the factors....

75=3(25)=3(5)(5)

77=7(11)

The biggest prime factor is therefore 11.

Identities used:

Difference of squares a^2-b^2=(a-b)(a+b)

3 0
3 years ago
Find the quotient of 2,300 and (0.4 · 10-8). In your final answer, include all of your calculations.
BigorU [14]
The first number in this item can be also expressed as 2.3 x 10³. Now, dividing the numbers 2.3 and 0.4 will give us an answer of 5.75. There exists a rule which states that when two similar numbers are divided only having different exponents, their exponents should be subtracted. The final answer to this item is therefore,
                                    5.75 x 10¹¹
5 0
3 years ago
The physician prescribed penicillin 250 mg. The bottle from the supply cabinet is labeled, "Penicillin 500 mg per cc." The corre
ELEN [110]

Using proportions, it is found that the correct amount to administer of CC would be of:

A. 0.5.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, 500 mg are equivalent to one cc. How many cc are equivalent to 250 mg? Hence the <em>rule of three</em> is given by:

500 mg - 1 cc

250 mg - x cc

Applying cross multiplication:

500x = 250

c = 0.5.

Hence option A is correct.

More can be learned about proportions at brainly.com/question/14398287

#SPJ1

3 0
2 years ago
When you are making a fraction with a whole number in it how do you set it up after dividing it
Aloiza [94]

Answer:

Does this help?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help will give you a 5 star rating
lesantik [10]

Answer:

3

Step-by-step explanation:

To find the average rate of change

f(0) - f(-2)

-----------------

0 - -2

Taking the values for f(0) = 6 and f(-2) =0  

6 - 0

---------

0+2

6/2

3

4 0
3 years ago
Read 2 more answers
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