All categories

2 years ago

F(x) = 3x2+ 6x - 18 find f (10)

Mathematics

1 answer:

sesenic [268]2 years ago

8 0

Answer:

f(10) = 342

Step-by-step explanation:

f(x) = 3x² + 6x - 18

f(10 = 3(10)² + 6(10) - 18

f(10) = 3(100) + 60 - 18

f(10) = 300 + 60 - 18

f(10) = 360 - 18

f(10) = 342

You might be interested in

Anybody? I'm pretty sure calculators don't do it right so..please no calculators. ;-;

Dima020 [189]

Answer:

.109 !!

Hope this helps!!

8 0

2 years ago

Read 2 more answers

In a study, 36% of adults questioned reported that their health was excellent. A researcher wishes to study the health of peop

steposvetlana [31]

Answer:

0.3907

Step-by-step explanation:

We are given that 36% of adults questioned reported that their health was excellent.

Probability of good health = 0.36

Among 11 adults randomly selected from this area, only 3 reported that their health was excellent.

Now we are supposed to find the probability that when 11 adults are randomly selected, 3 or fewer are in excellent health.

i.e. $P(x\leq 3)=P(x=1)+{P(x=2)+P(x=3)$

Formula : $P(x=r)=^nC_r p^r q ^ {n-r}$

p is the probability of success i.e. p = 0.36

q = probability of failure = 1- 0.36 = 0.64

n = 11

So, $P(x\leq 3)=P(x=1)+{P(x=2)+P(x=3)$

$P(x\leq 3)=^{11}C_1 (0.36)^1 (0.64)^{11-1}+^{11}C_2 (0.36)^2 (0.64)^{11-2}+^{11}C_3 (0.36)^3 (0.64)^{11-3}$

$P(x\leq 3)=\frac{11!}{1!(11-1)!} (0.36)^1 (0.64)^{11-1}+\frac{11!}{2!(11-2)!} (0.36)^2 (0.64)^{11-2}+\frac{11!}{3!(11-3)!} (0.36)^3 (0.64)^{11-3}$

$P(x\leq 3)=0.390748$

Hence the probability that when 11 adults are randomly selected, 3 or fewer are in excellent health is 0.3907

5 0

2 years ago

Which is the slope of the line that passes through the points (4,2) and (6, 7). plzzzzz help

Jlenok [28]

where are the pictures lol

7 0

2 years ago

What is the answer to 5/12 x6

tester [92]

Answer:

2.5

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Triangle PQR has vertices at the following coordinates: P(0, 1), Q(3, 2), and R(5, -4). Determine whether or not triangle PQR is

sweet-ann [11.9K]

The answer is yes, and I will give you the calculation soon

PQ= $\sqrt{3^{2} +1^{2} }$ = $\sqrt{10}$
QR= $\sqrt{ 2^{2} + 6^{2} } =2 \sqrt{10}$
PR= $\sqrt{ 5^{2} + 5^{2} } =5 \sqrt{2}$

$\sqrt{10} ^{2} + (2\sqrt{10}) ^{2} =(5 \sqrt{2} )^{2}$

7 0

3 years ago

Read 2 more answers