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
cestrela7 [59]
2 years ago
15

What's the meaning of –(–3)?

Mathematics
2 answers:
Liula [17]2 years ago
4 0

Answer:

+3

Step-by-step explanation:

if your subtracting a negitive it means your adding and its now a positive

aniked [119]2 years ago
4 0

-(-3) is equal to a positive 3

You might be interested in
A and B together complete a work in 20days. They worked together for 5days and B leaves. How long will A takes to finish the rem
andreev551 [17]

Answer:

27 days

Step-by-step explanation:

A alone, rate per day = 1/36

A and B together, rate per day = 1 / 20

Total Workdone for 5 days :

1/ 20 * 5 = 5 / 20 = 1/4

Fraction of work left :

1 - 1/4 = 3/4

3 / 4 * 36 /1

= (3 * 36) / 4

= 108 / 4

= 27 days

3 0
2 years ago
The radius of Earth is about 3960 miles. The radius of the moon is about 1080 miles. a. Find the surface area of Earth and the m
Molodets [167]

A) The formula for surface area of a sphere is A = 4*PI*r^2

using 3.14 for PI:

Surface area for Earth = 4 * 3.14 x 3960^2 = 196,960,896 miles^2

Surface area of the moon: 4 * 3.14 * 1080^2 = 14,649,984 miles^2

B)Divide the Surface of the Earth by the moon:

196,960,896 / 14,649,984 = 13.44

The Earths surface is 13.4 times larger than the moon.

C) Multiply the surface of the Earth by 70%:

196,960,896 * 0.70 = 137,872,627.2 million square miles of water.

4 0
3 years ago
The height in feet above the water of a diver can be modeled by ℎ() = −16*2 − 16 + 192, where t is the time in seconds after the
Maurinko [17]

h(t) is the height of the diver in feet above the water

Now it asks about the time at which diver reaches the water

When diver reaches the water , the height of diver from water should be zero

So we plug h(t) =0

So

-16t^2 -16 t +192 =0

divide whole equation by -16

t^2 +t -12 =0

we can now factor the quadratic equation

So we get

(t+4)(t-3) =0

plug each factor equal to zero and solve for t

t+4 =0 and t-3 =0

So t=-4 and t=3

Now time cannot be negative , So t=3

So time = 3 seconds

It takes 3 seconds for the diver to reach the water

3 0
3 years ago
The equation d = d equals StartFraction m Over V EndFraction. can be used to calculate the density, d, of an object with mass, m
Svetradugi [14.3K]

Answer:

C on EDGE 2020

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Help me help me help me
Vinil7 [7]

Answer:

40 dollars the answer is 40!!!

6 0
2 years ago
Other questions:
  • Write 2,000,000,000+70,000,000+100,000+70,000+3,000+800+10 in standard form
    8·1 answer
  • Sierra says that she can simplify the left side of the inequality 2(-3+ 5) + 22 -4(x- 2)- 3 by combining the terms within the pa
    11·1 answer
  • Please help :) meeeeeeeeeeee
    13·2 answers
  • Convert large numbers into scientific notation 4.65 x 10^4=
    15·2 answers
  • Can somebody help me with this math problem?
    12·2 answers
  • UPPER AND LOWER BOUNDS
    13·1 answer
  • Which type of data would be best displayed in a histogram?
    13·1 answer
  • Need help ASAP please!
    5·1 answer
  • Find the slope of the line that contains (3, −6) and (−1, −9).
    8·2 answers
  • a plastic box contains balls of different colors. among them, 18 balls were chosen. what does the number 18 represent?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!