NEED QUICKLY!!!!
-Please solve the image below

Answers

Answer 1

Answer: Yes,this is a doozy.

   -3 (y - 5) = 15

Eliminate the parentheses on the left side:

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

   -3y + 15 = 15

Subtract 15 from each side:

   -3y = 0

Divide each side by -3 :

      y = 0

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Which one is an expression of distance in SI units?a. 24 feet
b. 500 meters
c. 30 miles
d.16 kilograms

Answers

The SI unit for distance is the meter so D is your answer. :D

expression of distance in SI units will be sure the choice b. so 500 meters
just bc. the distance is measured in meters

hope helped

Please answer the question from the attachment.

Answers

3x + 9 = 2x + 12
-2x -2x
1x +9 = 12
-9 -9

x = 3

I need the volume for 9,11,and 13

Answers

Hey there!

Question 1

Let's use 3.14 for pi during this. It'll make it a lot easier.

The volume for a cone is $\pi r^(2) (h)/(3)$ .

The diameter of this cone is 17.6 inches. Since the radius is half the diameter, we can find the radius by dividing this amount by 2.

17.6 ÷ 2 = 8.8

The height of this cone is 23.4 inches.

Plug the values into the equation.

$\pi 8.8^(2) (23.4)/(3)$

Next, square 6.8 and divide 23.4 by 3. Also, replace the pi symbol with 3.14.

$3.14 * 77.44 * 7.8$

Multiply the numbers together.

The volume of this cone is approximately 1896.66 cubic inches.

Question 2

Finding the volume of a trapezoidal prism can be done by finding the are of the trapezoidal face and multiplying it by the depth.

Formula for finding the area of a trapezoid is $a = (1)/(2) h(b_(1) +b_(2) )$

The two bases are 10 and 34, and the height is 24.7 feet. Put these values into the equation.

$a = (1)/(2) 24.7(10 +34 )$

Add 10 and 34, then multiply it by 24.7 and 1/2.

a = 543.4

Multiply that value by 19, which is the depth of the figure.

The volume of the prism is 10324.6 cubic feet.

Question 3

The formula for volume of a triangular pyramid is v = 1/3ah, with a the area of the base and h the height.

The formula for the area of an equilateral triangle, which is the base, is $a = (√(3) )/(4) s^(2)$

The length of the side is 12, so we can square that to get 144.

Now multiply that by $(√(3) )/(4)$ to get the area of the base.

The area of the base is about 62.35 square meters.

The height of the pyramid is 20 meters. Plug that and the area of the base into the equation.

v = 1/3 x 62.35 x 20

Multiply the numbers together to get the volume.

The volume of the pyramid is approximately 415.67 cubic meters.

Hope this helps!

Two sides of a right triangle are 8” and 12”.A. Find the the area of the triangle if 8 and 12 are legs.

B. Find the area of the triangle if 8 and 12 are a leg and hypotenuse.

Answers

Area of a right triangle = ab/2

where a and b are both legs of the triangle.

A) a = 8 inches ; b = 12 inches
A = (8in x 12in)/2 = 96/2 = 48 in²

B.) a = 8 inches ; b = ? ; hypotenuse = 12 inches

Pythagorean theorem is used to get the measurement of the hypotenuse. It can also be used to get the measurement of the missing leg.

a² + b² = c² ⇒ b² = c² - a²
b² = 12² - 8²
b² = 144 - 64
b² = 80
b = √80
b = 8.94

A = ab/2 ⇒ (8 inches * 8.94 inches)/2
A = 71.52 in² / 2
A = 35.76 in²

The school you want to go to has an acceptance rate of 15% 15%. That means that 15% 15% of the students who apply to the school get in. The school took in 1800 1800 students last year. How many students applied?

Answers

n x 0.15 = 1800
n = 1800 / 0.15
n = 12,000

Therefore 12,000 students applied for the school.

What is the mass of a baseball that has a kinetic energy of 100 J and is traveling at 5 m/s?

Answers

The formula of the kinetic energy is:
K.E = $(1)/(2)$ mv²

The given are
K.E = 100 J
v = 5 m/s

Plug them in:

100 = $(1)/(2)$ m × (5)²
100 = $(1)/(2)$ m × 25
100 = 12.5m
Divide by 12.5 on either sides to isolate m

$(100)/(12.5)$ = $(12.5m)/(12.5)$
12.5 and 12.5 cancels out
8 kg = m
The mass of the baseball that has a kinetic energy of 100 J and speed of 5 m/s is 8 kg

Answer:

mass = 8 kg.

Step-by-step explanation:

Given : kinetic energy of 100 J and is traveling at 5 m/s?

To find : What is the mass of a baseball.

Solution : We have given

Kinetic energy = 100 J.

Velocity = 5 m/s.

Kinetic energy = $(1)/(2)m v^(2)$ .