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3 years ago

There are 17 students participating in a spelling bee. how many ways can the students who go first and second be chosen?

1 answer:

5 0

With 17 students there’s 17 possibilities for anyone to go first
For second, a person can’t be firsts and second so there is 16 possibilities for someone to go second

17*16=272

There’s 272 ways that the students who go first and second are chosen

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A concrete block has a cy

geniusboy [140]

To solve this problem, we will subtract the volume of the cylinder from the volume of the rectangular prism.

The volume of a cylinder is: pi*r^2*h
Substitute 2 in for r and 6 in for h. If the diameter is 4, then the radius is 2.
pi*2^2*6
pi*4*6
pi*24
=75.4 ft^2

The volume of the rectangular prism is: l*w*h.
Substitute 6 in for l, w and h, since all edges are equal.
6*6*6
36*6
=216 ft^2

Subtract 75.4 from 216
216-75.4=140.6

There is 140.6 cubic feet of concrete left in the block.

3 0

3 years ago

Cause I lowkey suck at math How do I do this

dimaraw [331]

1. The slope is -2/5 not 3-/10

5 0

3 years ago

anita rode her bike for 5.3 kilometers. if she rode her bike 1hour, what would her average speed in kilometers per hour?

pashok25 [27]

How long did she ride it for?

otherwise it would be 5.3 kph

7 0

3 years ago

How do you solve this? Show work and answer

Naddik [55]

Let's solve your equation step-by-step.

2b+1=16−3b

Step 1: Simplify both sides of the equation.

2b+1=16−3b

2b+1=16+−3b

2b+1=−3b+16

Step 2: Add 3b to both sides.

2b+1+3b=−3b+16+3b

5b+1=16

Step 3: Subtract 1 from both sides.

5b+1−1=16−1

5b=15

Step 4: Divide both sides by 5.

5b/5=15/5

<em>answer: b=3</em>

6 0

3 years ago

Read 2 more answers

What is the value of x? Enter your answer in the box. x = A triangle with vertices labeled as A, B, and C. Side B C is the ba

Savatey [412]

Answer:

x = 5

Step-by-step explanation:

For better explanation of the solution, see the attached diagram of the problem :

The triangle angle bisector theorem states that the line which bisects an angle of a triangle divides the opposite two sides of the triangle in two equal segment which are proportional to the other two sides of the triangle.

Now, from the diagram : AD is the angle bisector angle B

$\implies\frac{AB}{AC}=\frac{BD}{CD}\\\\\implies \frac{9}{15} = \frac{(2x-1)}{(3x)}$

On Cross multiplication :

⇒ 9 × 3x = 15 × (2x - 1)

Using the distributive property,

⇒ 27x = 15×2x - 15×1

⇒ 27x = 30x - 15

Subtract 30x from each side:

⇒ 27x - 30x = 30x - 15 - 30x

⇒ -3x = -15

⇒ x = 5

7 0

2 years ago