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zlopas [31]
3 years ago
11

Suppose f(x) = 2x + 3. Find f(-.5).

Mathematics
1 answer:
Alborosie3 years ago
5 0

Answer:

The answer is 2.

Step-by-step explanation:

You have to substitite x = -0.5 into the function :

f(x) = 2x + 3

f(-5) = 2(-0.5) + 3

f(-5) = 2

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How many edges does a tetrahedron have? 6 9 12 18
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A tetrahedron is a shape made out of four triangular faces, and it has a total of <span>six edges

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6 0
2 years ago
What is the value of the x variable in the solution to the following system of equations?
harkovskaia [24]
Its A. x=4

procedure: 3*equation1 - 2*equation2 ⇒ x=4
8 0
3 years ago
You use pemdas and they both equal to 77. So yes they are equivalent.
spayn [35]

Answer:

yes if u use Pemdas and both sides of the equation have the same answer, they both are equivalent.

Good job!

7 0
3 years ago
Two planes are flying away from Toronto Pearson International Airport. The Air Canada
erica [24]

Answer:

1832 miles

Step-by-step explanation:

First we need to find the angle between the routes of the planes.

If one is N30°W and the other is S45°W, we can find the angle between the routes with the following equation:

30 + angle + 45 = 180

angle = 105°

Then, we need to find the distance travelled by each plane, using the formula:

distance = speed * time

The time is 1.5 hours, so we have that:

distance1 = 800 * 1.5 = 1200 km

distance2 = 750 * 1.5 = 1125 km

Now, to find the distance between the planes, we can use the law of cosines:

distance^2 = 1200^2 + 1125^2 - 2*1200*1125*cos(105)

distance^2 = 3356214.43

distance = 1832 miles

5 0
3 years ago
Find the measure of center:<br> 1, 2, 3, 4, 5, 6, 7
Eva8 [605]

Answer:

Mean: 4

Median : 4

Mode: 1, 2, 3, 4, 5, 6, 7

Step-by-step explanation:

Measure of center is:

Mean: Average

Median: Middle number

Mode: Often number

Mean: Add all number then divide by the total number in data set.

1 + 2 + 3 + 4 + 5 + 6 + 7 = 28

28/7 = 4

Median: Middle number

1,2,3,4,5,6,7

Mode: most often number

1,2,3,4,5,6,7

<u><em>Kavinsky</em></u>

8 0
2 years ago
Read 2 more answers
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