1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
krek1111 [17]
2 years ago
11

A length is measured at 21 cm correct to two significant figures, what is the lower bound of the length and upper bound?

Mathematics
1 answer:
Andreyy892 years ago
7 0

Answer:

20.5 and 21.5

Step-by-step explanation:

It says 2 significant figures so the least it can possibly be is 0.5 less and the most it can be is 0.5 more as if it was, lets say 20.4 it would round down to 20 not 21.

You might be interested in
Monica has a 24-inch square frame. There are 4 equal sides. She paints 3/4 of one side of the frame blue. What fraction of the f
adelina 88 [10]
18/4 of 24 = 3/16

Hope it helped
8 0
3 years ago
Read 2 more answers
1.)What is the only solution of 2x^2 + 8x = x^2 – 16?
Greeley [361]
If you would like to solve the equation 2 * x^2 + 8 * x = x^2 - 16, you can calculate this using the following steps:

<span>2 * x^2 + 8 * x = x^2 - 16
</span><span>2 * x^2 - x^2 + 8 * x + 16 = 0
</span>x^2 + 8 * x + 16 = 0
(x + 4) * (x + 4) = 0
x = - 4

<span>The correct result would be x = - 4.</span>
8 0
3 years ago
Read 2 more answers
The length of the base of a triangle is twice its height. if the area of the triangle is 196 square​ kilometers, find the height
NISA [10]
Area = 1/2 x base x height

Let the height be x.
Height = x
Base = 2x

Area of triangle = 1/2 x base x  heght

Plug base and height into the variables:
(1/2)(2x)(x) = 196

Combine like terms:
x² = 196

Square root both sides:
x = 14

Find Base and height:
Base = x = 14 km
Height = 2x = 2(14) = 28 km

Answer: Height = 28km
4 0
3 years ago
Read 2 more answers
Through: (-3,-4) and (0,4)
12345 [234]

Answer:

The slope = 8/3

Step-by-step explanation:

Let's find the slope between your two points.

(−3,−4);(0,4)

(x1,y1) = (−3,−4)

(x2,y2) = (0,4)

Use the slope formula:

m= y2−y1 / x2−x1

= 4 − −4 / 0 − −3

= 8/3

Answer:

m = 8/3

Graph:

hope this helps and is right :)

7 0
2 years ago
PLEASE HELP FAST! my problem is in the photo.
frozen [14]

Answer:

I think it would be A), <F is included between line EF and line FG.

Step-by-step explanation:

If it goes E to F, then from F to G, angle F must be in the middle.

3 0
2 years ago
Other questions:
  • 100\400<br> As a percentage
    5·2 answers
  • The value of a graphing calculator is $225. After 2 years, the value of this calculator is $160. Find the value of the calculato
    9·1 answer
  • Iodine-123 is a radioactive substance used in medicine. It has a half-life of 13 hours. A nurse received a solution that initial
    9·1 answer
  • Your friend gives you $50 to gamble at a casino and you win 100,000 jow much did you give them
    5·1 answer
  • Miles has a square garden in his backyard. He decides to decrease the size of the garden by 1 foot on each side in order to make
    6·2 answers
  • What numbers when multiplied gives me -6 and when added 5.
    10·1 answer
  • Fifteen beach towels<br> cost $135.<br> What is the cost of eight<br> beach towels?
    12·2 answers
  • Critique Reasoning: A student says that the perimeter of a rectangle with side lengths (2x – 1) inches and 3x inches can be writ
    13·1 answer
  • The quotient of 24 and x equals 14 minus 2 times x.
    11·1 answer
  • Please answer the area please
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!