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
labwork [276]
2 years ago
7

Help me pleaseeeeeeeeeee

Mathematics
1 answer:
evablogger [386]2 years ago
8 0

Carry learning!

Stay safe!

You might be interested in
Using the grid box, draw a net for a rectangular prism with a length of 8 units, width of 2 units and height of 3 units
prohojiy [21]

Answer:  The answer is in the attached figure.


Step-by-step explanation:  We are given to draw a net for a rectangular prism  of length 8 units, width 2 units and height 3 units.

What is a rectangular prism? It is a a solid three-dimensional object consisting of six faces, where each of the face is a rectangle. The same cross-section along a length of a rectangular prism makes it a prism. We also call it as a cuboid.

As given in the question, a rectangular prism ABCDEFGH is drawn in the attached figure, where length is 8 units, width is 2 units and height is 3 units.


8 0
3 years ago
Simplify.<br> (w5)<br> I need this ASAP please
Ilya [14]
I’m pretty sure it’s w^25
5 0
3 years ago
You are a lifeguard and spot a drowning child 60 meters along the shore and 40 meters from the shore to the child. You run along
sukhopar [10]

Answer:

The lifeguard should run across the shore a distance of 48.074 m before jumpng into the water in order to minimize the time to reach the child.

Step-by-step explanation:

This is a problem of optimization.

We have to minimize the time it takes for the lifeguard to reach the child.

The time can be calculated by dividing the distance by the speed for each section.

The distance in the shore and in the water depends on when the lifeguard gets in the water. We use the variable x to model this, as seen in the picture attached.

Then, the distance in the shore is d_b=x and the distance swimming can be calculated using the Pithagorean theorem:

d_s^2=(60-x)^2+40^2=60^2-120x+x^2+40^2=x^2-120x+5200\\\\d_s=\sqrt{x^2-120x+5200}

Then, the time (speed divided by distance) is:

t=d_b/v_b+d_s/v_s\\\\t=x/4+\sqrt{x^2-120x+5200}/1.1

To optimize this function we have to derive and equal to zero:

\dfrac{dt}{dx}=\dfrac{1}{4}+\dfrac{1}{1.1}(\dfrac{1}{2})\dfrac{2x-120}{\sqrt{x^2-120x+5200}} \\\\\\\dfrac{dt}{dx}=\dfrac{1}{4} +\dfrac{1}{1.1} \dfrac{x-60}{\sqrt{x^2-120x+5200}} =0\\\\\\  \dfrac{x-60}{\sqrt{x^2-120x+5200}} =\dfrac{1.1}{4}=\dfrac{2}{7}\\\\\\ x-60=\dfrac{2}{7}\sqrt{x^2-120x+5200}\\\\\\(x-60)^2=\dfrac{2^2}{7^2}(x^2-120x+5200)\\\\\\(x-60)^2=\dfrac{4}{49}[(x-60)^2+40^2]\\\\\\(1-4/49)(x-60)^2=4*40^2/49=6400/49\\\\(45/49)(x-60)^2=6400/49\\\\45(x-60)^2=6400\\\\

x

As d_b=x, the lifeguard should run across the shore a distance of 48.074 m before jumpng into the water in order to minimize the time to reach the child.

7 0
3 years ago
Work out (5.32 x 10^-7): (2.5 x 10^-5)<br>Give your answer in standard form​
Mrrafil [7]

Answer:

1.33×10^-6

Step-by-step explanation:

5.32 x 10^-7= 5.32×10^(-5-2)= 5.32×10^-2×10^(-5)

=0.0532×10^-5

(0.0532×10^-5) (2.5 x 10^-5)

0.0532×2.5 × 10^-5

0.133×10^-5= 1.33×10^-1 ×10^-5

1.33×10^-6

8 0
3 years ago
The line plot shows the distances some students jumped during a Field Day competition.
trapecia [35]
To answer this question here is what you would do. I can't give you the exact answer because there is not a line plot attached.

Count the number of X's above the number 5 1/2 feet. Put this number over the total number of X's you count (including the 5 1/2s).

This is your answer when you write these 2 pieces of information in fraction form.
5 0
3 years ago
Other questions:
  • 28 is 32% of what number?
    8·2 answers
  • Linda Rove is paid $6.39 for each table she assembles. Last week she assembled the following number of tables. What was Roves pa
    6·1 answer
  • Write five and eight tenths in standard decimal form
    8·1 answer
  • If c(x)= 5/x-2 and d(x) = x + 3, what is the domain of (cd)(x)?
    5·1 answer
  • I REALLY NEED HELP!! WILL MARK BRAINLIEST!
    5·2 answers
  • A local hamburger shop sold a combined total of 695 hamburgers and cheeseburgers on Sunday. There were 55 fewer cheeseburgers so
    11·1 answer
  • A slug is at the bottom of a 14 foot wall. Everyday it crawls up 4 feet, but at night it slips 2 feet. How many days does it tak
    10·1 answer
  • The figure shows ΔDEF and ΔD'E'F'. Fill in each entry box with the answer.
    9·1 answer
  • Computer monitors are measured by length of the screens what is the save of the tv is the sides ar 38 and 28.5
    11·1 answer
  • Reduce 12/20 to lowest term
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!