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kiruha [24]
4 years ago
11

If T(n) = 2n-7, what is the fifth term?

Mathematics
1 answer:
charle [14.2K]4 years ago
8 0
T(5)=2\cdot5-7=3
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Find the length of a picture frame whose width is 3 inches and whose proportions are the same as a 9-inch wide by 15-inch long p
Artist 52 [7]

Answer:

The length is 5 inches.

Step-by-step explanation:

9/3=15/?

If you divide 9 by 3, you get 3 if you compare things you have to do the same on the other 'side'. So you do 15 divided by 3, the answer is 5.

7 0
3 years ago
What is the radius of f?
Mazyrski [523]
This is a simple right triangle problem.
a^2 + b^2 = c^2

the hypotenuse (or c) is 9 +x
and a is x
And b is 15

So so we sub in the values
x^2 + (15)^2 = (9+x)^2

x^2 + 225 = x^2 + 18x + 81
144 = 18x
8 = x

8 0
3 years ago
Two garen plots are to have the same area. One is square and one is rectangular. The rectangular plot is 2 meters wide and 32 me
Brrunno [24]

Answer:

Length l = 8 m

The length of one side of the square is 8 m

Step-by-step explanation:

The area of a rectangle is;

Area = length × breadth

Given;

Length = 32 m

Breadth = 2 m

Area of the rectangle can be expressed as;

A = 32 × 2 = 64 m^2

Area of a square is;

Area = length × length = l^2

Since the area of the square is equal to the area of the rectangle, then the area of the square is 64 m^2

A = l^2

64 = l^2

l = √64

l = 8 m

The length of one side of the square is 8 m

5 0
3 years ago
Find f(-2) and find one value of x for which f(x)=-1
IrinaVladis [17]

Solution

Step 1

f(-2) is the value of f(x) at which x = -2

Next

Trace x =-2 from the graph and get f(-2)

6 0
1 year ago
Let x denote the number of defective light bulbs in a randomly selected 20-count box from a local hardware store. The variable x
murzikaleks [220]

Step-by-step explanation:

First, find the expected value.

μ = 0 (0.28) + 1 (0.37) + 2 (0.22) + 3 (0.08) + 4 (0.05)

μ = 1.25

Now find the standard deviation.

σ² = (0−1.25)² (0.28) + (1−1.25)² (0.37) + (2−1.25)² (0.22) + (3−1.25)² (0.08) + (4−1.25)² (0.05)

σ² = 1.2075

σ = 1.099

If we were to select many boxes of bulbs randomly, the number of defective bulbs would typically vary about 1.099 from the mean.

5 0
3 years ago
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