Miguel's math book weights more than 3.45 kilograms. Which could be the weight of his math book in kilograms?

Answers

Answer 1

Answer: I think that it would be greater than 3.45 kilograms...Hope this helps and have a good day...

Answer 2

Answer: That should be 3.45 kilograms, I think. Sorry if this is not the right answer. Have a awesome day &a hope this helps! :)

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A dinner plate has a diameter of20 centimeters. What is the circumference
of the plate?
Please help

Answers

Step-by-step explanation:

first take out

radius from the given diameter using the logic I.e diameter is double of radius

than after that use the circumference of circle formula I.e 2 pie r

directly we can get circumference by

using formula

pied

I.e 22/7 × 20

and answer is 62.85

How would you write 60,000 in exponential notation?

Answers

Okay the answer is 6.0×10^4, you move the decimal point behind the first number and count all the spaces you moved. You moved four spaces so it would be to the power of 4. So 6.0×10^4 is the answer.

Exponential notation is basically just getting rid of zeroes!

It's really simple, promise.

60,000 has four zeroes
(All you have to do is count them)

Then you just have to apply the 6... 6 times 10^4

Hope I helped!

A cell phone company orders 500 new phones from a manufacturer. If the probability of a phone being defective is 2.9%, predict how many of the phones are likely to be defective. Round to the nearest whole number. 12 phones 15 phones 18 phones 145 phones

Answers

Answer:

15 phones, option B.

Step-by-step explanation:

A cell phone company orders new phones = 500

The probability of a phone is being defective = 2.9%

2.9% of 500 phones are = $(2.9)/(100)$ × 500

0.029 × 500 = 14.5 rounded to the nearest whole number is 15

The probability of 15 phones are defective out of 500 phones.

500 x 0.029 = 14.5

answer
about 15 phones

4x+8=7 I got -1/4 but don't know if you drop the negative when dividing

Answers

4x+8=7
You minus 8 from each side
4x=-1
Divide -1 by 4x
The answer is $- (1)/(4)$ or -.25
You leave the negative
If there is only one negative number(-1 being the case here) then its negative
If there are two negatives, its a positive
If there are two positive numbers, its positive

$4x+8=7\ \ \ \ | subtract\ 8\n\n4x=-1\ \ \ \ | divide\ by\ 4\n\nx=-(1)/(4)\n\nSolution\ is\ x=-(1)/(4).$

there are about 100 million smartphones in the U.S. your teacher has one smartphone. what share of US smartphones does your teacher have? express your answer using a negative power of 10.

Answers

$100 000 000 = 10^(8)$

$(1)/(100 000 000) = 10^(-8)$

I'd Point A is located at (9,2) on a coordinate plane and point B is located at (-9,10), what is the distance between the two points?

Answers

draw the triangle and then use Pythagoras' theorem

distance = $\sqrt{18 ^(2) +8 ^(2) }$
= 19.70 (2dp)

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