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ANTONII [103]
3 years ago
12

3 ones + 2 tenths +5 hundredths =​

Mathematics
2 answers:
nika2105 [10]3 years ago
8 0

Answer:

3.25

Step-by-step explanation:

3 + 0.2 + 0.05 =

bagirrra123 [75]3 years ago
4 0

3.25 is the answer

Step-by-step explanation:

you would add them as decimals

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8-4k=40 <br><br> What is the value of k?
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Answer:10

Step-by-step explanation:You will do 8-4=4 4*k=40 40\4=10 k=10.

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What is the area of this triangle? Enter your answer as a decimal in the box. Round only your final answer to the nearest hundre
nika2105 [10]

Answer:

Area of the triangle \simeq 5.9 sq. ft. .

Step-by-step explanation:

Length of two sides of the triangle are, 2.7 feet and 3.4 feet and the angle between them is 40° .

So, the area of the triangle is given by,

2.7 \times 3.4 \times \sin {40^{\circ}}  sq. ft.

\simeq 5.9 sq. ft.

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3 years ago
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A right triangle is formed in the first quadrant by the x- and y-axes and a line through the point (5, 3), as shown in the figur
Whitepunk [10]

The area of the triangle as a function of x is A = 3x^2/[2(x -5)] and the domain is x > 5

<h3>Write the area A of the triangle as a function of x</h3>

From the figure, we have the following points:

(0,y), (5,3), and (x,0)

Next, we calculate the slopes between the points.

This is calculated as follows:

  • Slope between (0,y) and (5,3) = [y - 3]/[0 - 5] = [3 - y]/5
  • Slope between (5,3) and (x,0) = [3 - 0]/[5 - x] = 3/[5 - x]

The slopes are equal.

So, we have:

[3 - y]/5 = 3/[5 - x]

Cross multiply

(3 - y)(5 -x) = 15

Divide by 5 - x

(3 - y) = 15/(5 -x)

This gives

y = 3 - 15/(5 -x)

This gives

y = [15- 3x - 15]/[5 - x]

Evaluate

y = 3x/(x - 5)

The area is calculated as:

Area = 1/2 * xy

So, we have:

Area = 1/2 * x * 3x/(x - 5)

Evaluate

Area = 3x^2/[2(x -5)]

Hence, the area of the triangle as a function of x is A = 3x^2/[2(x -5)]

<h3>The domain of the function</h3>

We have:

A = 3x^2/[2(x -5)]

Set the denominator > 0

2(x - 5) > 0

Divide by 2

x - 5 > 0

Add 5 to the sides

x > 5

Hence, the domain is x > 5

Read more about domains at:

brainly.com/question/2428614

#SPJ1

6 0
2 years ago
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