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
Grace [21]
3 years ago
10

What are the two solutions of 2x2 = –x2 – 5x – 1?

Mathematics
1 answer:
dybincka [34]3 years ago
8 0

Answer:

x=1+√334, x=1−√334

Step-by-step explanation:

You might be interested in
A sphere and a cylinder have the same radius and height. The volume of the cylinder is 21 meters cubed. A sphere with height h a
Elodia [21]

We have been given that a sphere and a cylinder have the same radius and height. The volume of the cylinder is 21 meters cubed. We are asked to find the volume of the sphere.  

We know that height of sphere is equal to its radius. This means that r=h.

\text{Volume of sphere}=\frac{4}{3}\pi r^3  

\text{Volume of cylinder}=\pi r^2 h

Using r=h, we will get:

\text{Volume of cylinder}=\pi r^2\cdot r

\text{Volume of cylinder}=\pi r^3

Upon comparing volume of sphere and volume of cylinder, we can see that volume of sphere is \frac{4}{3} times volume of cylinder.

\pi r^3=21

\frac{4}{3}\pi r^3=\frac{4}{3}\cdot 21

\frac{4}{3}\pi r^3=4\cdot 7

\frac{4}{3}\pi r^3=28

Therefore, the volume of the sphere would be 28 cubic meters.

4 0
3 years ago
Read 2 more answers
Kayla filled a bucket with 4 gallons of Water , she dumped exactly 1.o34 gallons . How much water is left in the buckets ?
yKpoI14uk [10]
4 - 1.034 = 2.966
There would be 2.966 gallons of water left in the bucket.

I hope this helps!
4 0
3 years ago
consider the following scenario: Assume daily protein intake values in a population of athletes are known to have a standard dev
Kipish [7]

Answer:

The 95% confidence interval for the population mean daily protein intake is between 69.97g and 84.03g.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96*\frac{58.6}{\sqrt{267}} = 7.03

The lower end of the interval is the sample mean subtracted by M. So it is 77 - 7.03 = 69.97g.

The upper end of the interval is the sample mean added to M. So it is 77 + 7.03 = 84.03g.

The 95% confidence interval for the population mean daily protein intake is between 69.97g and 84.03g.

5 0
3 years ago
Simplify: 4(3x^2y^4)^3 / 2x^3y^5)^4
Semenov [28]
Step by step solution :<span>Step  1  :</span><span>Equation at the end of step  1  :</span><span><span> (((3•(x2))•(y4))3) 4•—————————————————— ((2x3•(y5))4) </span><span> Step  2  :</span></span><span>Equation at the end of step  2  :</span><span><span> ((3x2 • (y4))3) 4 • ——————————————— 24x12y20 </span><span> Step  3  :</span><span> 33x6y12 Simplify ———————— 24x12y20 </span></span>Dividing exponential expressions :

<span> 3.1 </span>  <span> x6</span> divided by <span>x12 = x(6 - 12) = x(-6) = 1/<span>x6</span></span>

Dividing exponential expressions :

<span> 3.2 </span>  <span> y12</span> divided by <span>y20 = y(12 - 20) = y(-8) = 1/<span>y8</span></span>

<span>Equation at the end of step  3  :</span><span> 27 4 • —————— 16x6y8 </span><span>Step  4  :</span>Final result :<span> 27 ————— 4x6y<span>8</span></span>
6 0
3 years ago
Read 2 more answers
What is the solution to the equation below? Round your answer to two decimal places. 3e2x + 12 = 42
Shkiper50 [21]

Answer:

X= 5.52

Step-by-step explanation:

1. Solve the equation:

e×2x + 12= 42

x=15/e

2. Round x=15/e to the required place

x=5.52

5 0
1 year ago
Other questions:
  • PLEASE HELP QUICK
    12·2 answers
  • REQUIRE URGENT ASSISTANCE like really really, please help
    6·1 answer
  • If 44.14 km is 4 times faster wind speed than 5 hours ago, what was the wind speed 5 hours ago?
    15·2 answers
  • (Answer Asap) The nuthouse sells macadamia nuts in three sizes. The 12 oz jar sells for 8.65, the 16 oz jar sells for $10.99, an
    7·1 answer
  • Which statement is true about the factorization of 30 ex 2+40 XY +51y2
    14·1 answer
  • What is the responsible estimate of 6207 divided 214
    13·1 answer
  • Is 0.36 less than 0.63
    7·1 answer
  • The reciprocal of 5 less than a number is 4 times the reciprocal of twice the number. find the number.
    11·1 answer
  • The triangular face of the given prism has an interior angle with a measure of 55° and an exterior angle with a measure of 95°.
    7·2 answers
  • Use long division to determine the decimal equivalent of 2/3
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!