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Alex Ar [27]
3 years ago
14

Callie surveyed 40 students at her school to see how many have dogs and/or cats. She found that 40% of students who have dogs, d

on't have cats.
Complete the table below.

Have Dogs Don't Have
Dogs Total
Have Cats
7
Don't Have
Cats
8
Total 25 15 40
Mathematics
1 answer:
Mrac [35]3 years ago
5 0
It's hard to type a table into these little boxes.  Could you possibly draw the table on paper and share an image of the table here?

This is called a "contingency table" and is often associated with "dependent probability."


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( 3u + 7 )( 5 - u )= 0​
mixas84 [53]

Answer:

The answer is 484. Please let me know if it helped you.

Step-by-step explanation:

5 0
3 years ago
If cos(x)=1/4 what is sin(x) and tan(x)
anygoal [31]
You can use the identity
  cos(x)² +sin(x)² = 1
to find sin(x) from cos(x) or vice versa.

  (1/4)² +sin(x)² = 1
  sin(x)² = 1 - 1/16
  sin(x) = ±(√15)/4


Then the tangent can be computed as the ratio of sine to cosine.
  tan(x) = sin(x)/cos(x) = (±(√15)/4)/(1/4)
  tan(x) = ±√15


There are two possible answers.
In the first quadrant:
  sin(x) = (√15)/4
  tan(x) = √15

In the fourth quadrant:
  sin(x) = -(√15)/4
  tan(x) = -√15
3 0
3 years ago
I WILL GAVE BRAINLIEST
Arte-miy333 [17]

Answer:

x < -14

Step-by-step explanation:

Step 1: Subtract 6 from both sides.

  • -3x+6-6 > 48-6
  • -3x > 42

Step 2: Divide both sides by -3 and flip the inequality sign.

  • -3x/-3 > 42/-3
  • x < -14

Therefore, the answer is  x < -14.

4 0
2 years ago
Read 2 more answers
Working at home: According to the U.S Census Bureau, 41% of men who worked at home were college graduates. In a sample of 506 wo
sergejj [24]

Solution :

a). The point estimate of proportion of college graduates among women who work at home,

$\hat p =\frac{166}{506}$

  = 0.3281

99.5% confidence interval

$=\left( \hat p \pm Z_{0.005/2} \sqrt{\frac{\hat p (1- \hat p)}{n}} \right)$

$=\left( 0.3281 \pm 2.81 \sqrt{\frac{0.3281 \times  (1- 0.3281)}{506}} \right)$

$=(0.3281 \pm 0.0586)$

$=(0.2695, 0.3867)$

6 0
3 years ago
How to factor x^2 +3x-4
Vikki [24]
(x +4) * (x -1)
****************************************************


6 0
2 years ago
Read 2 more answers
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