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Rzqust [24]
2 years ago
9

Can you do 2 problems? and then someone else do the other 2 ty!

Mathematics
1 answer:
Lynna [10]2 years ago
6 0

Answer:

5.) MIGHT I SAID MIGHT be 20+16+12=48km squared for perimeter and 192 (im not sure really) for area

i can only do one I HOPE this helps probably not tho

Step-by-step explanation:

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If f(x)=4x-7 and g(x)=2x+4 evalvate f(x)+g(x) for x=-3
galben [10]

Answer:

-21

Step-by-step explanation:

We are told to find f(x) + g(x) for x= -3. Therefore, we must evaluate f(-3) and g(-3), then add them together.

First, evaluate f(-3).

f(x)=4x-7

To find f(-3), we need to substitute -3 in for x.

f(-3)= 4(-3)-7

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction First, multiply 4 and -3.

f(-3)= -12-7

Next, subtract 7 from -12

f(-3)= -19

Next, find g(-3).

g(x)=2x+4

To find g(-3), substitute -3 in for x.

g(-3)= 2(-3)+4

Solve according to PEMDAS. First, multiply 2 and -3.

g(-3)= -6+4

Next, add -6 and 4

g(-3)= -2

Now, we can add f(-3) and g(-3) together.

f(-3) + g(-3)

f(-3)= -19

g(-3)= -2

-19 + -2

Add

-21

7 0
3 years ago
Read 2 more answers
The FDA recommends that Americans get on average 3,000mg of salt in their daily diet. Suppose that you are interested in testing
gavmur [86]

Answer:

Null hypothesis; H0: μ = 3000

Alternative Hypothesis; Ha: μ ≠ 3000

Step-by-step explanation:

We are told that the FDA recommends that Americans get on average 3,000mg of salt in their daily diet.

Now we want to test this claim of whether Americans truly get an average of 3,000mg of salt in their daily diet.

Thus, the hypotheses is as follows;

Null hypothesis; H0: μ = 3000

Alternative Hypothesis; Ha: μ ≠ 3000

5 0
3 years ago
3. Would it be more efficient to use an inequality vo
myrzilka [38]

Answer:

Inequality

Step-by-step explanation:

There are an infinite number of quantities less than 6 (5, 4, 3, 2, 1, 0, -1, -2, -3...) so it is much easier to write an inequality

4 0
3 years ago
A density curve for all the possible temperatures between 0 degrees F and 40 degrees F is a rectangle. What is the height of the
Eddi Din [679]

Answer:

Concept: Higher Level Mathematics

  1. You have a density curve, aka probability
  2. You are asked to find the height
  3. Hence 0-40F has 40 total integers or values of X(probability)
  4. Hence you have a total Area of
  5. \binom{40}{0}
  6. Integrate f(x) to get 0.025.
  7. Hence the answer is A
  8. Rate positively and give brainlist

3 0
3 years ago
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One card is drawn form a standard deck of 52 cards. What is the probability of <br> P(jack or red)
bazaltina [42]
2/52 which simplifies down to 1/26
7 0
3 years ago
Read 2 more answers
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