All categories

2 years ago

Will give Brainlys help with math problem

Mathematics

2 answers:

choli [55]2 years ago

6 0

15/8
Tan is= opp/adj
To find value of opposite side, you need to do Pythagorean Theorem.
17^2=8^2-x^2. Using algebra, you can solve for x, which in this case is 15.

zhannawk [14.2K]2 years ago

3 0

Answer:

Step-by-step explanation:

→ tan Q = opposite side / adjacent side = OP / PQ (for reference of Angle Q )

firstly , find side "OP"

• By Pythagoras Theorem

: H² = p² + b²

→ OQ² = OP ² + PQ²

→ 17² = OP²+ 8²

→ 289 = OP² + 64

→ 289 – 64 = OP²

→ 225 = OP²

→ √225 = OP

→ OP = 15

Therefore :

You might be interested in

N a region, there is a 0.70.7 probability chance that a randomly selected person of the population has brown eyes. assume 1414

taurus [48]

'll use the binomial approach. We need to calculate the probabilities that 9, 10 or 11
<span>people have brown eyes. The probability that any one person has brown eyes is 0.8, </span>
<span>so the probability that they don't is 1 - 0.8 = 0.2. So the appropriate binomial terms are </span>

<span>(11 C 9)(0.8)^9*(0.2)^2 + (11 C 10)(0.8)^10*(0.2)^1 + (11 C 11)(0.8)^11*(0.2)^0 = </span>

<span>0.2953 + 0.2362 + 0.0859 = 0.6174, or about 61.7 %. Since this is over 50%, it </span>

<span>is more likely than not that 9 of 11 randomly chosen people have brown eyes, at </span>
<span>least in this region. </span>

<span>Note that (n C r) = n!/((n-r)!*r!). So (11 C 9) = 55, (11 C 10) = 11 and (11 C 0) = 1.</span>

8 0

3 years ago

Does √(x) + √(x) = √(2x)?<br><br><br>If not please explain.

musickatia [10]

Answer:

You are correct.

Step-by-step explanation:

What you do is you add them together which is 2x and it stays in the square root. You are correct.

8 0

3 years ago

After knee surgery, your trainer tells you to return to your jogging program slowly. He suggests

sveticcg [70]

If you find a wrong thing on answer respond me

8 0

3 years ago

Read 2 more answers

Find f(-2) for f(x) = 3x2^x

Tanzania [10]

2^-2
Is 1/2^2=1/4
3 x 1/4 is 3/4
The answer is 3/4 I think

4 0

3 years ago

Forty percent of households say they would feel secure if they had $50,000 in savings. you randomly select 8 households and ask

Kay [80]

Answer:

Let X be the event of feeling secure after saving $50,000,

Given,

The probability of feeling secure after saving $50,000, p = 40 % = 0.4,

So, the probability of not feeling secure after saving $50,000, q = 1 - p = 0.6,

Since, the binomial distribution formula,

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

Where, $^nC_r=\frac{n!}{r!(n-r)!}$

If 8 households choose randomly,

That is, n = 8

(a) the probability of the number that say they would feel secure is exactly 5

$P(X=5)=^8C_5 (0.4)^5 (0.6)^{8-5}$

$=56(0.4)^5 (0.6)^3$

$=0.12386304$

(b) the probability of the number that say they would feel secure is more than five

$P(X>5) = P(X=6)+ P(X=7) + P(X=8)$

$=^8C_6 (0.4)^6 (0.6)^{8-6}+^8C_7 (0.4)^7 (0.6)^{8-7}+^8C_8 (0.4)^8 (0.6)^{8-8}$

$=28(0.4)^6 (0.6)^2 +8(0.4)^7(0.6)+(0.4)^8$

$=0.04980736$

(c) the probability of the number that say they would feel secure is at most five

$P(X\leq 5) = P(X=0) + P(X=1) + P(X=2) + P(X=3) + P(X=4) + P(X=5)$

$=^8C_0 (0.4)^0(0.6)^{8-0}+^8C_1(0.4)^1(0.6)^{8-1}+^8C_2 (0.4)^2 (0.6)^{8-2}+8C_3 (0.4)^3 (0.6)^{8-3}+8C_4 (0.4)^4 (0.6)^{8-4}+8C_5(0.4)^5 (0.6)^{8-5}$

$=0.6^8+8(0.4)(0.6)^7+28(0.4)^2(0.6)^6+56(0.4)^3(0.6)^5+70(0.4)^4(0.6)^4+56(0.4)^5(0.6)^3$

$=0.95019264$

8 0

3 years ago