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bekas [8.4K]
2 years ago
11

Find the area of the given triangles.

Mathematics
1 answer:
liubo4ka [24]2 years ago
3 0

Answer:

40 ft squared

Step-by-step explanation:

to find the area of a triangle, you do base x height divided by 2

5 x 16 = 80

80 divided by 2 is 40

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Use the Distributive Property to multiply 8 and 45 in your head.
Andre45 [30]

Answer:

320+40=360

Step-by-step explanation:

8(40+5)

320+40=360

5 0
3 years ago
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Please please helpp i will mark brainliest!!! 100 points !! ill mark brainliest if its correct.
Paraphin [41]

Answers and Step-by-step explanations:

1. We need to plug in values of x into the functions f(x) and g(x):

f(2) = 2.5 * 2 - 10.5 = -5.5                         g(2) = 64 * (0.5^2) = 16

f(3) = 2.5 * 3 - 10.5 = -3                            g(3) = 64 * (0.5^3) = 8

f(4) = 2.5 * 4 - 10.5 = -0.5                         g(4) = 64 * (0.5^4) = 4

f(5) = 2.5 * 5 - 10.5 = 2                             g(5) = 64 * (0.5^5) = 2

f(6) = 2.5 * 6 - 10.5 = 4.5                          g(6) = 64 * (0.5^6) = 1

2.

(a) Notice that at 14 on the x-axis, the blue line is above 4. Meanwhile, at 14, the red line is less than 2. Obviously, we can see that if the printed ad revenue was less than 2 and the online ad revenue was greater than 4, that's more than a double, so the lead marketing executive is correct.

(b) The approximate year that the revenues were equal is the place where the lines intersect. It's approximately at Year 7.5.

3.

(a) The Western Beach is clearly decreasing; it is decreasing by 2 ft per year. Meanwhile, the Dunes Beach is clearly increasing; it's increasing by 5 ft per year. (I'm not sure what kinds of "patterns" you're looking for).

(b) Year 11 and 12; this is because here, Western is going from 78 to 76 ft and Dunes is going from 75 to 80, so they'll likely coincide sometime in that time interval.

(c) One thing you can do is to create equations (of the form y = mx + b) for each of the beaches and then set those linear equations equal to each other.

6 0
2 years ago
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What formula would you use to find the area of this figure?
Reil [10]

Answer:

(base × height) × 0.5

Step-by-step explanation:

Formula of the Area of a Triangle => (base × height) × 0.5

8 0
2 years ago
What is the contrapositive of the conditional statement? If two variables are directly proportional, then their graph is a linea
charle [14.2K]
 if the graph is NOT a linear function, then the two variables are NOT directly proportional
5 0
3 years ago
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Which statement best describes why the value of the car is a function of the number of years since it was purchased?
Scrat [10]

Answer:

B

Step-by-step explanation:

The definition of a function is that any input will only have one output. Here, the input is the number of years, and the output is the value of the car. We know this because the question is asking why the value of the car is a function of the number of years. Therefore, based on the number of years, the value of the car is given.

Going back to the definition of a function, we can apply this year to say that any number of years will only have one car value. Another way to say this is that each time is associated with exactly one car value.

7 0
2 years ago
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