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2 years ago

A child from a class of 30 students is chosen to pick one of five prizes. How many outcomes are there

Mathematics

1 answer:

Mamont248 [21]2 years ago

4 0

Answer: 5?

Step-by-step explanation:

there are 5 prizes to be chosen from.

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Help with my math homework

sertanlavr [38]

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3 years ago

N ÷ 10 exponent 2 = 0.123<br><br>(Help please)

Ilia_Sergeevich [38]

Answer:

n = 12.3

Step-by-step explanation:

I'm assuming we're looking for n, to find it, we need to isolate it.

Our equation will be solved through PEMDAS :

Parenthesis

Exponent

Multiply/Divide

Add/Subtract

n / 10^2 = 0.123

Get rid of the exponent by applying it to 10,

10^2 = 100

n/100 = 0.123

Now to get rid of the division, multiply the denominator (100) to both sides.

n/100 * 100 = 0.123 * 100

n = 12.3

4 0

2 years ago

Read 2 more answers

The volume of an oblique pyramid with a square base is V units3 and the height is h units.Which expression represents the area o

melamori03 [73]

Answer: a) $\dfrac{3V}{h}\ units^2$

Step-by-step explanation:

We know that the volume of an oblique pyramid is given by :-

$\text{Volume}=\dfrac{1}{3}\text{(Base Area x height) }$

If the volume of an oblique pyramid with a square base is V units³ and the height is h units.

Then, we have

$V=\dfrac{1}{3}\text{(Base Area x h) }$

Multiply 3 on both sides , we get

$3V=\text{(Base Area x h) }$

Divide both sides by h , we get

$\dfrac{3V}{h}=\text{Base Area }$

i.e. $\text{Base Area }=\dfrac{3V}{h}\ units^2$

Hence, the expression represents the area of the base of the pyramid = $\dfrac{3V}{h}\ units^2$

Hence, the correct answer is a) 3 v/h units^2

7 0

2 years ago

Read 2 more answers

On rainy days, Izzy goes from his house to the school by running 1.2 miles on West St, then makes a 90º turn and runs 0.5 miles

OlgaM077 [116]

Answer:

a) It will take Izzy 0.226 hours = 13.6 minutes = 13 minutes 36 seconds to run to school on dashed days.

b) Izzy runs 1.30 miles on dry days.

c) Izzy saves 3 minutes and 12 seconds cutting through the woods.

Step-by-step explanation:

This problem can be solved by a simpe rule of three problem.

a) On rainy days, she runs 1.2 + 0.5 = 1.7 miles.

The problem states that for rainy days, she runs 7.5 miles per hour. We know that in a hour, Izzy will run 7.5 miles. We want to know how long it takes for her to run 1.7 miles. So

1 hour - 7.5 miles

x hours - 1.7 miles

7.5x = 1.7

$x = \frac{1.7}{7.5}$

x = 0.226 hours

It will take Izzy 0.226 hours = 13.6 minutes = 13 minutes 36 seconds to run to school on dashed days.

b) Now we have a right triangle, where the sides are the 1.2 miles and the 0.5miles, and the path through the woods x is the hypotenuse.

So, we apply the pythagorean theorem.

$x^{2} = (1.2)^{2} + (0.5)^{2}$

$x^{2} = 1.44 + 0.25$

$x^{2} = 1.69$

$x = 1.30$

So, Izzy runs 1.30 miles on dry days.

c) The first step for this question is knowing how long it takes for Izzy to run 1.30 miles at 7.50 miles a hour. So:

1 hour - 7.50 miles

x hours = 1.30 miles

7.50x = 1.30

$x = \frac{1.3}{7.5}$

x = 0.173 hours

So, it takes Izzy 0.173 hours = 10.4 minutes = 10 minutes 24 seconds to run through the woods.

13' 36''

-10' 24''

3' 12''

Izzy saves 3 minutes and 12 seconds cutting through the woods.

5 0

3 years ago

Using the table tool, create a truth table for compound statement ~p^~q.

Nataliya [291]

Answer:

Step-by-step explanation:

See the attachment for the chart

4 0

3 years ago