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3 years ago

5

Everyone in a class of 35 students takes math and history. 8 students received an A in history, 15 received an A in math and 3 r

eceived an A in both courses. How many students did not receive an A in either course?

1 answer:

otez555 [7]3 years ago

8 0

Answer: 9 students

Step-by-step explanation:

15+8+3=26

35-26= 9

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andriy [413]

Well he only needs to check two corners

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3 years ago

Evaluate each expression.

Virty [35]

Answer:

<em>720</em>

<em>12</em>

<em>120</em>

Step-by-step explanation:

<u>Factorials</u>

We must recall that the factorial of a number n (positive or zero) is the product of all the integers from n down to 1

$n!= n(n-1)(n-2)...1$

Let's evaluate the given expressions

$6!=6\cdot 5\cdot 4\cdot 3\cdot 2\cdot 1=720$

Similarly

$3!\cdot 2!=(3\cdot 2\cdot 1)\cdot (2\cdot 1)=6\cdot 2=12$

Finally

$\displaystyle \frac{6!}{3!}=\frac{6\cdot 5\cdot 4\cdot 3\cdot 2\cdot 1}{3\cdot 2\cdot 1}$

$\displaystyle \frac{6!}{3!}= \frac{720}{6}=120$

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3 years ago

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I'm a bit confused on what I'm supposed to be doing here, help would be much appreciated!

solmaris [256]

Answer:

f(f(n)) = -n^4 -8n^2 -20

Step-by-step explanation:

As with any function evaluation, you substitute the argument for the variable and simplify.

$f(f(n))=f(-n^2-4)=-(-n^2-4)^2-4\\\\=-(n^4+8n^2+16)-4\\\\\boxed{f(f(n))=-n^4-8n^2-20}$

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3 years ago

In the literal equation below, what do C and F represent? F = 9/5 C + 32

Fofino [41]

Celsius and Fahrenheit

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3 years ago

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I WILL GIVE YOU BRAINLIEST IF YOU GET IT RIGHT! YOU WILL ALSO GET 10 POINTS IF YOU ATTEMPT!

mylen [45]

Answer:

B. 120

Step-by-step explanation:

<u>so his average speed is 20 mph in heavy traffic, and 50 mph in light traffic</u>

in 1 hour of heavy traffic, he would have gone 20 miles because if his average speed is 20 mph (miles per hour) in heavy traffic, then in 1 hour he would have gone 20 miles

20(1) = 20

in 2 hours of light traffic, he would have gone 100 miles because if his average speed is 50 mph (miles per hour) in light traffic, then in 2 he would have gone 100 miles

50(2) = 100

in total, if you add the 20 and 100, you find out how far abdul traveled:

20 + 100 = 120

so in 1 hour of heavy traffic and 2 hours in light traffic, abdul would have traveled 120 miles

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4 years ago