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Law Incorporation [45]
3 years ago
14

I really need help with these two

Mathematics
1 answer:
11111nata11111 [884]3 years ago
6 0
1. 430ft bc yu plug in the 8 for t seconds in the equation h=-16t^2+1454
2. m=5h bc yu multiply the # of hrs babysitting by 5
You might be interested in
The number of calls coming per minute into a hotel reservation center is Poisson random variable with mean 3.
natima [27]

Answer:

a) 0.05

b) 0.9826

c) 0.000039308

Step-by-step explanation:

a) P_X(0) = \frac{e^{-3}3^0}{0!} = e^{-3} =  0.05

b) For two minutes, the mean is doubled, hence it is 6. In order to calculate the probability of al least two calls arriving, we calculate first the probability of the complementary event: At most 1 call will arrive. For that probability, we need to sum the probabilities of 0 and 1.

P_X(0) = e^{-6}

P_X(1) = \frac{e^{-6}*6^1}{1!} = 6*e^{-6}

Hence,

P(X \geq 2) = 1-P(X < 2) = 1- 7*e^{-6} = 0.9826

c) For five minutes the mean is 15. We need to sum the probabilities of 0, 1 and 2.

P_X(0) = e^{-15}

P_X(1) = e^{15}*15

P_X(2) = \frac{e^{-15}*15^2}{2!} = 112.5*e^{-15}

As a result,

P(X \leq 2) = e^{-15}(1+15+112.5) = 0.000039308

Practically 0

4 0
3 years ago
Is 13 a prime or composite
eimsori [14]

Answer:

13 would be a prime number.

Step-by-step explanation:

Trust me :)

4 0
2 years ago
Read 2 more answers
Last EAST question worth 50 POINTS!<br><br><br> What is the simplified expression show above?
Eddi Din [679]

Answer:

4x+8

Step-by-step explanation:

3 0
3 years ago
Math question, any help is appreciated &lt;3
lesya [120]

Since you already know the solution, you need to substitute every occurrence of x and y with those values: the first equation checks out, because it becomes

3\cdot 4 - 2 \cdot 2 = 12-4 = 8

The second becomes

2 \cdot 4 + 3 \cdot 2 = Q \iff 8+6 = Q \iff Q = 14

7 0
3 years ago
Type SSS, SAS, ASA, AAS, or HL to justify why AABC = ADEF.<br><br> AC FD and AB = DE
bezimeni [28]

The theorem that justifies why triangles ABC and DEF are congruent is: HL.

<h3>What is the Hypotenuse-Leg Congruence Theorem (HL)?</h3>

The hypotenuse-leg congruence theorem (HL) states that if two triangles that are right triangles have a pair of congruent hypotenuse and a pair of corresponding congruent legs, then both right triangles are proven to be congruent to each other. This means both right triangles are have the same shape and size.

Given that:

angle ABC = angle DEF = 90° (congruent right angles, this means both triangles are right triangles)

AC = FD (a pair of congruent hypotenuse)

AB = DE (a pair of congruent legs)

Thus, we can conclude that since triangle ABC and triangle DEF have a pair of congruent hypotenuses and a pair of congruent legs, therefore, the two right triangles, triangle ABC and triangle DEF are congruent to each other by the HL congruent theorem.

Thus, the theorem that justifies why both triangles are congruent is: HL.

Learn more about the HL congruence theorem on:

brainly.com/question/2102943

#SPJ1

3 0
1 year ago
Read 2 more answers
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