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Zarrin [17]
3 years ago
7

If breadth of a rectangle is 19m and perimeter is 80m, find the length of the rectangle.

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0

Answer: 21

Step-by-step explanation:

since 19 is the breadth and the perimeter is 80m, so 19*2=38 and 80-38= 42 so 42/2=21. The answer is 21

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Find f(g(x)) simplify completely f(x)= x^2+5x+2 g(x)=3x
Sindrei [870]

Answer:

<u>f(g(x)) = 9x² + 15x + 2</u>

Step-by-step explanation:

  • f(x) = x² + 5x + 2
  • g(x) = 3x

<u>Solving f(g(x))</u>

  • f(g(x))
  • f(3x)
  • f(3x) = (3x)² + 5(3x) + 2
  • f(3x) = 9x² + 15x + 2
  • <u>f(g(x)) = 9x² + 15x + 2</u>
8 0
2 years ago
Read 2 more answers
Steve has 20 marbles in a bag, all the same size and shape. There are 8 red,
adoni [48]
50/50 chance of getting a yellow marble.

Explanation:

There are 10 yellow marbles in the bag, and the other half are other colors. This would create a 50/50 ratio.

I am honestly super rusty with probability but oh well...
3 0
3 years ago
What is the quotient (3x2 + 8x − 3) ÷ (x + 3
Margarita [4]
I found two answers
1. x=-1/3
2. x=3
6 0
3 years ago
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☰ Question (part 1 of 2) This is a two-part question, make sure you answer both parts: Flo Tilla is pedal boating on Lake Azui.
Naddik [55]
For this, we use the given info plus a bit of multiplying and subtraction

part 1)

we know that she's 25 y/m
so 5 minutes simply means 25 × 5
25 \times 5 = 125 \: yards

now we simply subtract this from 1000 (the original distance)
1000 - 125 = 875 \: yards

part 2)

the total time taken is even easier to find
all we have to do is divide 1000 by 25
1000 \div 25 = 40 \: minutes
6 0
3 years ago
The measure of an angle is three times the measure of its supplementary angle. What is the measure of each angle?
Agata [3.3K]

Answer:

Angle = 135°

Supplement of the Angle = 45°

Step-by-step explanation:

The complement of an angle, say "x", would be 90 minus that angle:

90 - x

The supplement of an angle, say "y", would be 180 minus that angle:

180 - y

Since we have 1 angle, let it be "x", and that angle is 3 TIMES the SUPPLEMENT of that angle, we can write:

x = 3(180 - x)

Now, we solve for the angle x:

x = 3(180 - x)\\x = 540 - 3x\\x + 3x = 540\\4x = 540\\x = \frac{540}{4}\\x=135

So, the angle is 135°

The supplement of the angle is  180 - 135 = 45°

4 0
3 years ago
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