MATHEMATICS HIGH SCHOOL

Solve these following easy questions: a) Round 23.542 to the nearest tenth.
b) Round 5.592 to the nearest hundredth
c) Round 0.010229 to four significant figure
d) How many significant figures does the following number have: 0.002040

Answers

Answer 1

Answer:

Answer:

a) 23.5

b) 5.59

c) 0.01023

d) 4

Related Questions

PROVE ALGEBRAICALLY THAT 0.5 = 5/9
If g(x) = 3(x − 2), find the value of x if g(x) = 6.A- 12 B- 2.6 C- 8 D -4
(please help me. ) (I screenshot the question and choices )
How do I solve r+11+8r=29
How do I work this problem out? S= 2(lw+ lh+ wh)

David wants to hang a mirror in his room. The mirror and frame must have an area of 8 square feet. The mirror is 2 feet wide and 3 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?Square with an inner frame with height of 2ft on the left frame and width of 3ft on the top. Arrow on the bottom frame with an x and an arrow on the right frame with an x.

2x2 + 14x − 2 = 0
3x2 + 10x − 8 = 0
4x2 + 10x − 2 = 0
x2 + 7x − 8 = 0

Answers

Represent the thickness of the frame by x. Framing the mirror will increase both its length and width by 2x. The area of the mirror with the frame is the product of the length and width which can mathematically be expressed as,

A = (3 + 2x)(2 +2x) = 8

The equation above can be simplified into 4x^2 + 10x -2 = 0. This equation can still be further simplified by dividing it by 2. However, it will give an answer which is not found on the choices. Thus, the answer is the third choice.

Answer:

The answer above is correct i took the test

Step-by-step explanation:

Imogen bought i number of invitations to send out for her party. After she sent out 19, she was left with 11. What is thevalue of 1?
11
оооо
19
о 30

Answers

Answer:

30 in total that she bought

Step-by-step explanation:

Answer:

Step-by-step explanation:

got it right on edg 2021

5 students participated in a push-up competition.The amount of push-ups each student completed is listed: 12, 7, 10, 11,5
What was the mean number of push-ups?

Answers

Answer: 9

Step-by-step explanation:

Formula : Mean = $\frac{\text{Sum of observations}}{\text{Number of observaions}}$

Given: 5 students participated in a push-up competition.

The amount of push-ups each student completed is listed: 12, 7, 10, 11,5.

Mean = $(12+7+10+77+5)/(5)$

$=(45)/(5)=9$

Hence, the mean number of push-ups = 9

Susan drove at an average speed of 30 miles per hour for the first 30 miles of a trip and then at an average speed of 60 miles per hour for the remaining 30 miles of the trip. if she made no stops during the trip, what was susan's average speed, in miles per hour, for the entire trip?

Answers

The average speed is given by:
average speed=(total distance)/(total time)
total time for the first 30 miles was:
time=distance/speed
=30/30
=1 hr
total time for the remaining 30 miles
=30/60
=0.5
hence the average speed will be:
speed=(30+30)/(1+0.5)=60/1.5=40 miles per hour

You have 60 red socks and 30 blue socks unpaired in a drawer. You can not see the socks, they are in a drawer and it is dark. What is the minimum number of socks that you have to pull out before you have a matching pair?

Answers

It doesn't matter how many of each color there are.

If there are two colors in the drawer, then if the first two are not a pair,
then the third sock you pull out must match one of them.

So ... pulling out two could give you a pair, and three always must.

What is a factor of 13