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3 years ago

Helpppp thank youuuu

Mathematics

2 answers:

Pani-rosa [81]3 years ago

8 0

Answer:

Step-by-step explanation:

The square root of 144 is 12 c:

y = 12

soldier1979 [14.2K]3 years ago

3 0

Answer:

Step-by-step explanation:

The square root of 144 is 12 and the square root of y^2 is y so y=12

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Emily Elizabeth has $1.50 in dimes and nickels. She has 22 coins in all. How many nickels does she have?

Marat540 [252]

Answer:

$14$

Step-by-step explanation:

We can set up the following system of equations:

$\begin{cases}10d+5n=150\\d+n=22\\\end{cases}$ , where $d$ is the number of dimes she has and $n$ is the number of nickels she has.

Multiplying the second equation by -5 and adding both equations lets us isolate and solve for $d$ :

$10d+5n+(-5(d+n))=150+(-5(22)),\\5d=40,\\d=8$

Plugging $d=8$ into any of the two equations will let us solve for $n$ :

$8+n=22,\\n=\fbox{$14$}$ .

Therefore, she has 14 nickels.

6 0

3 years ago

What is the area of the figure?

Kipish [7]

Answer:

17.98 square meters

Step-by-step explanation:

find the area of rectangle

length x width

6.2x1.8= 11.16

find area of triangle

base x height x 1/2

base= 6.2

height= 4-1.8= 2.2

area=2.2 x 6.2 x 1/2 = 6.82

add both together to get area of figure

6.82 + 11.16 = 17.98

5 0

3 years ago

The University of Central Florida’s cheerleading team has eighteen males and twenty-one females. If h represents the height of a

morpeh [17]

Answer:

The range of heights of the cheerleaders is the interval [58, 74)

All real numbers greater than or equal to 58 inches and less than 74 inches

Step-by-step explanation:

we have

$260 \leq 4h+28$

Divide the compound inequality into two inequalities

$260 \leq 4h+28$ -----> inequality A

$4h+28$ -----> inequality B

<em>Solve inequality A</em>

$260 \leq 4h+28$

Subtract 28 both sides

$232 \leq 4h$

Divide by 4 both sides

$58 \leq h$

Rewrite

$h \geq 58\ in$

<em>Solve the inequality B</em>

$4h+28$

Subtract 28 both sides

$4h$

Divide by 4 both sides

$h$

therefore

The range of heights of the cheerleaders is the interval [58, 74)

All real numbers greater than or equal to 58 inches and less than 74 inches

3 0

4 years ago

A submarine dives 650 feet every 5 minutes and 5,200 feet every 40 minutes.

Olenka [21]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the height of X. Having a hard time figuring this out

Delvig [45]

Use the pythagorean theorem:
$a^2 +b^2 = c^2$

where c is the hypotenuse of the triangle.

$x^2 +12^2 = 14^2 \\ \\ x^2 +144 = 196 \\ \\ x^2 = 52 \\ \\ x = \sqrt{52} = 2 \sqrt{13}$

8 0

4 years ago