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olasank [31]
4 years ago
9

Select all that apply.

Mathematics
1 answer:
Nikolay [14]4 years ago
5 0

Answer:

1). This is a right angle triangle = TRUE

2). The hypotenuse of the triangle has a length of 21 = FALSE ("C" is the hypotenuse which makes 21 and 20 the leg of the triangle)

3). One of the legs has a length of 20 = TRUE

4). The length of "c" can be found by 202 + c2 = 212 = FALSE (To calculate the hypotenuse of the triangle you should use the formula a² + b² = c² )

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Graph the inequality x &lt; 6<br> Please someone help now :(
const2013 [10]

Step-by-step explanation: To graph x < 6 on a number line, we start with an open dot at +6. The reason we use an open dot at +6 is that x is less than +6 but it is not equal to +6. Next we drawn an arrow going to the left to show that all numbers less than +6 are solutions to this inequality.

Image is attached below.

8 0
3 years ago
A picture inside a frame is 2 inches longer than it is wide. The picture is in a frame that has a width of 3 inches on each side
geniusboy [140]

Answer:

The dimensions of the frame are 15 in x 13 in

Step-by-step explanation:

Let

x ----> the length of the picture

y ----> the width of the picture

we know that

x=2+y -----> equation A

The area of the picture, including the frame is

A=(x+6)(y+6)

A=195\ in^2

so

195=(x+6)(y+6) ----> equation B

substitute equation A in equation B

195=(2+y+6)(y+6)

solve for y

195=(y+8)(y+6)\\y^2+6y+8y+48=195\\\\y^2+14y-147=0

solve the quadratic equation by graphing

The solution is y=7 in

see the attached figure

<em>Find the value of x</em>

x=2+7=9\ in

Find the dimensions of the frame

x+6=9+6=15\ in

y+6=7+6=13\ in

therefore

The dimensions of the frame are 15 in x 13 in

7 0
3 years ago
A bathtub empties at 15 gallons per minute. What is this in liters per second?
Serjik [45]

Answer:

Step-by-step explanation:

approximately 0.94625 liters per second

7 0
3 years ago
How many people were polled? <br> O 48<br> O 69<br> O 118<br> O 166
alisha [4.7K]

Answer:

166

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
SHOW YOU WORK AND EXPLAIN PLS I WILL MARK YOU BRAINLIEST PLEASE.
KatRina [158]

Answer:

a) 1.8 cm^2

b) 3.6 feet^2

Step-by-step explanation:

Conversion and calculation of areas

The area of a rectangle is A=wh, where w is the width and h is the height. There are 3 feet in one yard

a)

We are told Kalie put 6 stickers, each one of 1/2 centimeters (0.5 cm) wide by 3/5 (0.6 cm) centimeter long. The area of one sticker is

A=(0.5)(0.6)=0.3 cm^2

Assuming there is no overlapping, the 6 stickers have a total area

6*0.3 cm^2=1.8 cm^2

b)

Each of Elana's wrapping papers measures 2/5 yards long and 1/4 yard wide. Converting them to feet we have

long=2/5*3=1.2 feet

wide=1/4*3=0.75 feet

Area of each paper=1.2 feet*0.75 feet=0.9 feet^2

Area of the entire board, assuming no overlapping and no space left uncovered=4*0.9 feet^2

Area of board=3.6 feet^2

7 0
4 years ago
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