MATHEMATICS HIGH SCHOOL

What is 307,495 rounded to in the nearest thousand ? A) 307,400
B) 310,000
C)308,000
D)307,000

Answers

Answer 1
Answer: Well the 7 is in the thousands place. If the number after is 1-4 it stays the same and everything after drops if it's 5-9 you add 1 to the number and drop everything after. Since 4 is 1-4 keep the number the same and drop everything after: 307,000. D. is the correct answer :)
Answer 2
Answer: the answer is D)307,000 because the 495 is less than 500

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What does it mean to cube something, thank you

Answers

To multiply it by itself three time eg 2x2x2

Answer:

In math, a cube is a number multiplied by itself three times. The cube of 2 is 8 (2 x 2 x 2). ... As a verb, cube means to cut into cube shapes.

Step-by-step explanation:

Do you guys know the domain and range to this?

Answers

The domain is any number greater then negative five. The range is any number greater than negative two.

I need help on this question.

Answers

95.

As you see, the angle is a bit closer to 120. A right angle would be a perfect square, which is 90 degrees. So since it is so closer to 90 than the other answers, the answer is 95.

If < 4 is 120°, then we know <3 = 60°, because 120+60=180°
then <2 = 35° , and if we add all the angles of the triangle together we find <1
60°+35°= 95°
180°-95°= 85° = <1
180°-85°= <5 = 95°

a student measures the mass of an 8cm3 block of brown sugar to be 32g.what is the density of the brown sugar ?

Answers

D= Densitym= massV= VolumeD=m÷V= 8÷32D= 1/4
D = m/v
D = 32g/8cm^3
D = 4g/cm^3

I am write the other answer is wrong. She got her numbers mixed. Mass is calculated using grams and volume is calculated using cm cubed.

The manager of a sawmill wants to find out what percentage of the boards that the mill produced are defective.Which sampling methods are likely to be biased?

Choose all answers that are correct.

A.
The manager selects 20 boards at random each day for 5 days and examines them.

B.
The manager sends an email to 20 customers who buy lumber from the mill, asking each how many of the boards they bought the past week were defective. Results from the first 5 customers to respond are tallied.

C.
On 1 day, an hour after the sawmill begins production, 30 boards in a row are selected and examined.

D.
Every 40th board produced over the course of 1 week is selected and examined.

Answers

The sampling method that is most bias is: 

B. 
The manager sends an email to 20 customers who buy lumber from the mill, asking each how many of the boards they bought the past week were defective. Results from the first 5 customers to respond are tallied.

C.
On 1 day, an hour after the sawmill begins production, 30 boards in a row are selected and examined.

Gerald says that the most common measurements is 14 quarter inches. is he right? why or whynot

Answers

Gerald is not right because the most common unit of measurement is centimeters (cm).
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