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3 years ago

using what you know about percents,explain why a commercial that says"80% of dentists use this toothpaste"might be misleading?

1 answer:

6 0

There are many dentists in the world and it wold be hard to count the amount of dentists that use the toothpaste. Also, there are many brands of toothpaste and it would would be doubtful that “80%” of dentists would use the same one.

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Find the probability that a randomly selected multiple birth for women 15-54 years old involved a mother who was at least 40 ye

Nikolay [14]

Answer:3/8

Step-by-step explanation:

Total number of women with ages from 15 to 54years (15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54)= 40

Total number of women with age 40 years and above = 15

Probability of picking a mother of age greater than 40 = 15/40 which is equal to 3/8.

6 0

3 years ago

Read 2 more answers

3. The difference of the squares of two positive consecutive odd integers is 32. Find the

abruzzese [7]

Answer:

7,9

Step-by-step explanation:

Let two consecutive odd integer=X and (X+1)

The difference of the squares of two positive consecutive odd integers is 32.

So(X+2)^2-x^2=32

(x^2+4+4x)-x^2=32

x^2+4+4x-x^2=32

4x=32-4

4x=28

X=28/4

X=7

So first integer=7

Second integer=7+2

=9.

4 0

3 years ago

(DESPERATE PLEASE HURRY) question down below please show the work

Vlad1618 [11]

Answer:

This is my second time answering one of your questions, chill out, just learn.

-46

Step-by-step explanation:

-46+17=-29

6 0

2 years ago

PLEASE SOLVE THESE 60 POINTS!!!! I am so tired... Questions are in the pictures.

solniwko [45]

Answer:

bottom right

Step-by-step explanation:

First, graph the line x=2 (a vertical line). It is a dashed line because it isn't equal to 2, eliminating the top right and bottom left. Then, shade to the right of the line because x needs to be greater than 2, eliminating the top left.

7 0

4 years ago

The sun shines at a 30° angle to the ground. To the nearest inch, how long is the shadow cast by a 72-inch tall fence post?

murzikaleks [220]

the shadow cast by a 72-inch tall fence post is of 125 inch!

Step-by-step explanation:

Here we have , The sun shines at a 30° angle to the ground. To the nearest inch, We need to find how long is the shadow cast by a 72-inch tall fence post. Let's find out:

According to question we have a right angle triangle with following parameters :

$Perpendicular = 72 inch\\Base = ?\\x =30$