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4 years ago

8

Please answer this question!!

1 answer:

Tatiana [17]4 years ago

6 0

On the 4 sided die there is 2 odd numbers so you have a 1/2 probablitly of geeting odd

on the 6 sided there are 3 odd numbers so a 1/2 probability
for both it is 1/2 x 1/2 = 1/4

answer is B

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Factor this polynomial completely. x^2 + 3x -18

ArbitrLikvidat [17]

Answer:

$(x+6)(x-3)$

Step-by-step explanation:

$x^2+3x+18$

$x^2+6x-3x-18$

$x(x+6)-3(x+6)$

$(x+6)(x-3)$

8 0

3 years ago

Complete the following <br>a) 3/5 = .../20

Elza [17]

The answer would be 12/20:
5x4=20
3x4=12

4 0

4 years ago

Read 2 more answers

What is the scale factor of this dilation? <br><br> 1/2, <br><br> 2/3, <br><br> 3/4, <br><br> 3/2

Butoxors [25]

3/4, is right i think

6 0

3 years ago

Sandra's printer can print 5 pages in 2/3 of a minute (40s). Show different ways to determine how many pages her printer can pri

Ne4ueva [31]

Answer:

$7\frac{1}{2}$ pages

Step-by-step explanation:

Method 1: Working with minutes

Let us assume that, Sandra's printer can print x pages in 1 minute.

Then we can write the equation:

$x:1=5:\frac{2}{3}$

We can rewrite the ratios as a fraction.

$\frac{x}{1}=\frac{5}{\frac{2}{3}}$

This simplifies to

$x=\frac{15}{2}$

Or

$x=7\frac{1}{2}$

Method 2: Working with seconds

If 5 pages corresponds to 40 seconds, then we can write: $5:40$

Let y corresponds to 60 seconds (1 minutes).

Then:

$y:60=5:40$

We rewrite as fraction:

$\frac{y}{60}=\frac{5}{40}$

Multiply both sides by:

$y=\frac{5}{40}\times 60$

$y=\frac{300}{40}$

$y=\frac{15}{2}$

$y=7\frac{1}{2}$

6 0

3 years ago

Consider a set of 7500 scores on a national test whose score is known to be distributed normally with a mean of 510 and a standa

german

$\mathbb P(X>600)=\mathbb P\left(\dfrac{X-510}{85}>\dfrac{600-510}{85}\right)=\mathbb P(Z>1.059)\approx0.145$

So approximately 14.5% of the scores are higher than 600. This means in a sample of 7500, one could expect to see $0.145\times7500\approx10.86$ scores above 600.

5 0

3 years ago