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3 years ago

Given f(x) = –5x + 1, what is f(–2)?

1 answer:

3 0

F(x) = -5x + 1

f(-2) = -5(-2) + 1
f(-2) = 10 + 1
f(-2) = 11

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Answer: f(-2) = 11 (Answer C)
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Find the indicated probability.

natka813 [3]

Answer:

C) 0.179

Step-by-step explanation:

Since the trials are independent, this is a binomial distribution:

Recall:

Binomial Distribution --> $P(k)={n\choose k}p^kq^{n-k}$
$P(k)$ denotes the probability of $k$ successes in $n$ independent trials
$p^k$ denotes the probability of success on each of $k$ trials
$q^{n-k}$ denotes the probability of failure on the remaining $n-k$ trials
${n\choose k}=\frac{n!}{(n-k)!k!}$ denotes all possible ways to choose $k$ things out of $n$ things

Given:

$n=10$
$k=4$
$p^k=0.53^4$
$q^{n-k}=(1-0.53)^{10-4}=0.47^6$
${n\choose k}={10\choose 4}=\frac{10!}{(10-4)!4!}=210$

Calculate:

$P(4)=(210)(0.53^4)(0.47^6)=0.1786117069\approx0.179$

Therefore, the probability that the archer will get exactly 4 bull's-eyes with 10 arrows in any order is 0.179

7 0

2 years ago

I need to know what is in the blank space ?

Ber [7]

There is nothing in the space. If there were, then the space would not be blank.

7 0

3 years ago

Solve for h Give an exact answer. 3h=7( 2/7− 3/7 h)−10

romanna [79]

Its -4/3
Thank You.
Pls mark Brainliest!

6 0

3 years ago

To find the product of two digit number and a 1 digit number you can multiply the tens multiply the ones and find of each

kumpel [21]

Yes you can multiply 10 to find the numbers

4 0

3 years ago

If a 36-foot tree casts a 28-foot shadow at the same time near by building casts a 70-foot shadow, how tall is the building?

Arada [10]

Actual length / shadow ratio is equal
Let the height of the building be x, then
36/28 = x/70
x = (36 x 70)/28 = 2,520/28 = 90.

Therefore, the height of the building is 90 feet.

7 0

3 years ago

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