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
sergey [27]
2 years ago
5

What is the formula to find the volume in a rectangular ​

Mathematics
1 answer:
hram777 [196]2 years ago
3 0

Answer:

length times width equals height

You might be interested in
If a yard is 3 feet long how many inches are in a yard
Likurg_2 [28]


there are 36 inches in a yard


8 0
3 years ago
Read 2 more answers
Graph this function: y =3/4x - 4 (you can just put the cordinants)​
Aloiza [94]
I’m assuming 3/4x is a fraction
the coordinates are (0,-4) and (4,-1)
5 0
2 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
Need help on khan NOW! question is on picture. will report link and mark brainliest if right
Genrish500 [490]
Answer: R= 1

Explanation: no matter how you do it you still get 1 bc its x divided by y which is 1
3 0
2 years ago
Evaluate the function at the given values<br> F(y) = 4y^4 - 6y^2 + 8y - 15<br> At y = 2
otez555 [7]
F(2)= 4(16) - 6(4) + 8(2) - 15
F(2)= 64 -24 + 16 - 15
F(2)= 41
7 0
2 years ago
Other questions:
  • Find the confidence interval with a 90% level of confidence. In October 2010, Gallup Poll asked 510 randomly sampled adults the
    15·1 answer
  • Whats the measurment for H?
    12·1 answer
  • Help!!! Write and equation in point-slope form and slope-intercept for each line. Passes through (2,2) , slope =3
    11·1 answer
  • If f(x) = 3x +5 and g(x)= x² + 1, what is the value of g[f(x)}?
    14·1 answer
  • Layla has 3/4 of a can of paint. She uses 2/3 of the paint for one wall in her bedroom. How much of the can did she use? PEASE A
    9·1 answer
  • The ratio of a pair of corresponding sides in two similar triangles is 5:3. The area of the smaller triangle is 108 in2. What is
    11·1 answer
  • Multiply 546.1 × 0.52 = ____
    15·1 answer
  • What is the slope of (19,15) and (-9,-8)
    14·1 answer
  • What is (0.25) x (1.4)
    12·2 answers
  • SOLVE ASAP EASY<br> 4 yd 2 ft 7 in+3 yd 5in
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!