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Sergio039 [100]
2 years ago
11

When x = 2, which expression has the greatest value?

Mathematics
2 answers:
aksik [14]2 years ago
5 0

Answer:

C.

Step-by-step explanation:

A.) 2x+1=2(2)+1= 5


B.) 3x-3=3(2)-3= 3

C.) 4x-2=4(2)-2= 6

D.) 5x-7=5(2)-7= 3

german2 years ago
5 0
C because 4x2 is 8 and then you do 8-2 which is 6 all the other options are lower than 6 :) hope this helped!
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6.(08.04)<br> What is the sum of the geometric sequence 2, 8, 32, ... if there are 8 terms?
Lyrx [107]

Answer:

43,690.

Step-by-step explanation:

The common ratio r is 8/2 = 32/8 = 4.

Sum of n terms = a1 * (r^n - 1) / (r - 1).

a1 = 2 and r = 4 so

Sum of 8 terms = 2 *(4^8 - 1) / (4 - 1)

= 2 * 65535 / 3

= 43,690.

3 0
3 years ago
Can someone help me with my homework
pochemuha

Answer:

i need a better pic but i can help you

Step-by-step explanation:

4 0
3 years ago
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Mrs. Kremer uses a 15% off coupon when she buys a camera. The original price of the camera is $225.How much money did she pay fo
Murrr4er [49]

Answer:

$191.25

Step-by-step explanation:

15% of $225

15% × $225

$33.75

$225 - $33.75

$191.25

3 0
3 years ago
I'm having alot of trouble with this one.​
Daniel [21]
Okay, this is C. This is because since he has already driven 3.5miles so far, we already have that and we add it cause we have already driven that. Then, it says 100 miles for every TWO hours. For x, we need to find how many miles we drive in ONE hour. So: 100/2 miles = 2/2 hours: 50 miles = 1 hr.
3 0
3 years ago
Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, of all homeowners are insured
ANTONII [103]

Missing part of the question

Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 25% of all homeowners.....................

Answer:

P(X = x) = ^4C_x * 0.25^x * 0.75^{4-x}

Mean = 1

Pr = 0.2617

Step-by-step explanation:

Given

n = 4

p = 25\%

Solving (a): The probability distribution of x

We have:

n = 4

p = 25\% = 0.25

The probability of not having earthquake insurance (q) is:

q = 1 - p

q = 1 - 0.25 = 0.75

If x has insurance, then n - x do not.

The distribution follows a binomial pattern. So, the probability distribution is:

P(X = x) = ^nC_x * 0.25^x * 0.75^{n-x}

Substitute 4 for n

P(X = x) = ^4C_x * 0.25^x * 0.75^{4-x}

Solving (b): The most likely value of x i.e. The mean

We have:

n = 4 and

p = 25\% = 0.25

Mean = np

Mean = 4 * 0.25

Mean = 1

Solving (c): At least 2 of 4 selected have earthquake insurance.

This is calculated as

Pr = P(x = 2) + P(x = 3) + P(x = 4)

P(X = x) = ^4C_x * 0.25^x * 0.75^{4-x}

P(X=2) = ^4C_2 * 0.25^2 * 0.75^{4-2}

P(X=2) = 6 * 0.25^2 * 0.75^2 = 0.2109375

P(X=3) = ^4C_3 * 0.25^3 * 0.75^{4-3}

P(X=3) = 4 * 0.25^3 * 0.75 = 0.046875

P(X=4) = ^4C_4 * 0.25^4 * 0.75^{4-4}

P(X=4) = 1 * 0.25^4 * 1= 0.00390625

So:

Pr = P(x = 2) + P(x = 3) + P(x = 4)

Pr = 0.2109375 + 0.046875 + 0.00390625

Pr = 0.26171875

Pr = 0.2617 --- approximated

6 0
3 years ago
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