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3 years ago

Pls help me with 4 , 5 , and 6 and show me how you did it i will mark brainlist !!

Mathematics

1 answer:

LuckyWell [14K]3 years ago

3 0

Answer:

2 on top and bottom of 4 5 is 3 on top and bottom and lastly 6 is 8 on top and bottom.

Step-by-step explanation:

all you have to do is divide the two bottom numbers on each problem and the answer to the problem will be the same on top and bottom

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Factor the equation 2x^2+5x+3

lozanna [386]

Answer:

(2x+3)(x+1)

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Yeah so help please.

irina [24]

Answer:

could you possibly zoom in

Step-by-step explanation:

7 0

2 years ago

The Insure.com website reports that the mean annual premium for automobile insurance in the United States was $1,503 in March 20

stira [4]

Answer:

a) Option A)

$H_{0}: \mu \geq 1503\\H_A: \mu < 1503$

b) Point estimate of difference = -78

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $1,503

Sample mean, $\bar{x}$ = $1,425

Sample size, n = 25

Sample standard deviation, s = $160

We have to carry a hypothesis test that the mean annual premium in Pennsylvania is lower than the national mean annual premium.

a) First, we design the null and the alternate hypothesis

$H_{0}: \mu \geq 1503\text{ dollars}\\H_A: \mu < 1503\text{ dollars}$

b) Point estimate of the difference between the mean annual premium in Pennsylvania and the national mean

Point estimate of difference =

Mean annual premium in Pennsylvania - National mean

$\text{Point estimate} = \bar{x} - \mu = 1425 - 1503 = -78$

Thus,

Point estimate of difference = -78

5 0

3 years ago

Using number lines 80 is 25% of what number

Goshia [24]

25% can be made in to 100% by multiplying it by 4.

Therefore, we can find the answer by multiplying 80 by 4.

80 * 4 = 320

3 0

3 years ago

Two fair coins are flipped. Given that at least one coin lands on a head, calculate the probability of one head and one tail. Wr

Greeley [361]

The probability of one head and one tail is 2/3.

<u>Step-by-step explanation</u>:

The possibilities for flipping two fair coins are {T,T}, {H,H}, {H,T}, {T,H}
Given the case that at least one coin lands on a head, So the total possibilities are {H,H}, {H,T}, {T,H} = 3 possibilities

Required event is 1 head and 1 tail= {H,T}, {T,H} = 2 possibilities

To calculate the probability of one head and one tail,

Probability = required events / Total events

Probability = 2/3

8 0

3 years ago