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3 years ago

If the length of a rectangular television screen is 20 inches and its height is 15 inches,

1 answer:

4 0

Use the Pythagorean theorem:

C = √[a^2 + b^2] 
C = √[(20^2 + 15^2] 
C =√[400 + 225] 
C = √(625) 
C = 25 inches 

Answer: 3.25 inches ✔️

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The figure below shows two half-circles at the ends of a rectangle with the dimension shown.

timurjin [86]

Answer:

D. 154

Step-by-step explanation:

The area of the rectangle is 15*5= 75 inches

The area of the 2 semicircles combined, which make a circle, are:

π*r², where r is 5

r²=25

π*25=78.53981633

75 + 78.53981633 is about 154

5 0

2 years ago

2x + 3 = 5, then, x=

Pavlova-9 [17]

Answer:

x= 1

Step-by-step explanation:

2x1=2+3=5

7 0

3 years ago

Read 2 more answers

Anesh normally buys 1.5 litre bottles of soft drink. At the supermarket he notices a promotion bottle that has 25 percent extra.

slavikrds [6]

Answer:

6ml

Step-by-step explanation:

=25%÷100%

=0•25

1.5l to ml

1L=1000ml

=1.5000ml÷0.25

=6ml

6 0

2 years ago

Helena wrote the equation using point-slope form for the line that passes through the points (5, 1) and (3, 5). Analyze the step

viva [34]

Answer:

In step 2, she didn’t use an x and y from the same coordinate pair

Step-by-step explanation:

see the attached figure to better understand the problem

we have the points (5, 1) and (3, 5)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute

$m=\frac{5-1}{3-5}$

$m=\frac{4}{-2}$

$m=-2$

step 2

The equation of the line in point slope form is

$y-y1=m(x-x1)$

take the point (3,5)

$m=-2$

substitute

$y-5=-2(x-3)$

$y-5=-2x+6$

$y=-2x+6+5$

step 3

$y=-2x+11$

therefore

In step 2, she didn’t use an x and y from the same coordinate pair

3 0

3 years ago

Read 2 more answers

Which of the following is a characteristic of the circumcenter of a triangle? A. It is the center of the circle that can be insc

ki77a [65]

Answer is A. It is the center of the circle that can be inscribed in a given triangle
Explanation
The circumcenter is called ”the circumcenter” because it is the center of the circle that ”circumscribes” the triangle.

6 0

1 year ago