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
adoni [48]
3 years ago
6

20 POINTS HURRY PLEASE (GIVING BRAINLIEST)

Mathematics
1 answer:
Debora [2.8K]3 years ago
7 0

Answer:

V=235.62

Step-by-step explanation:

U~U

You might be interested in
Find the value of k so that 48x-ky=11 and (k+2)x+16y=-19 are perpendicular lines.
Rufina [12.5K]

Answer: k = -1 +/- √769

<u>Step-by-step explanation:</u>

48x - ky = 11

<u>-48x        </u>  <u> -48x</u>

         -ky = -48x + 11

         \frac{-ky}{-k} = \frac{-48x}{-k} + \frac{11}{-k}    

           y =\frac{48x}{k} - \frac{11}{k}

Slope: \frac{48}{k}

*************************************************************************

 (k + 2)x + 16y = -19

<u>- (k + 2)x          </u>   -<u>(k + 2)x </u>

                 16y = -(k + 2)x - 19

                  \frac{16y}{16} = -\frac{(k + 2)x}{16} - \frac{19}{16}

                  y = -\frac{(k + 2)x}{16} - \frac{19}{16}

Slope: -\frac{(k + 2)}{16}

**********************************************************************************

\frac{48}{k} and -\frac{(k + 2)}{16} are perpendicular so they have opposite signs and are reciprocals of each other.  When multiplied by its reciprocal, their product equals -1.

-\frac{(k + 2)}{16} *  \frac{k}{48} = -1

\frac{(k + 2)k}{16(48)} = 1

Cross multiply, then solve for the variable.

(k + 2)(k) = 16(48)

k² + 2k - 768 = 0

Use quadratic formula to solve:

k = -1 +/- √769



5 0
3 years ago
This is the only number which is neither positive nor negative.
iogann1982 [59]

Answer:

0

Step-by-step explanation:

Its Nor positive nor negative

3 0
3 years ago
Read 2 more answers
Find the GCF<br> 50x^4, -10x^5, 2x^6
shtirl [24]

Answer:

2 x^4

Step-by-step explanation:

Recall that the GCF is the greatest of the product of factors that are common to all these three expressions

then for the pure numerical part, the factor common to 50, -10 , and 2 is "2"

and for the variable part x^4 is the largest common to all three expressions.

Therefore the GCF is: 2 x^4

7 0
3 years ago
Read 2 more answers
How do you factorise 20w2y+24wy3
Lilit [14]
20w^2y+24wy^3=4wy(5w+6y^2)
5 0
3 years ago
Read 2 more answers
20 POINTS NEED HELP ASAP!!!Which is
TEA [102]

Answer:

D is eliminated as it goes down to 4, if counted by 1. The answer is B. y= 1/2x² – 4

7 0
3 years ago
Other questions:
  • Every evening Jenna empties her pockets and puts her change in a jar. At the end of the week she counts her money. One week she
    14·1 answer
  • What are two numbers that when multiplied equal -2, and also when added equals 1
    5·2 answers
  • Plz help me i have tryed and i dont know plz help
    8·1 answer
  • To arrive to his appointment on time, Mr. Jones had to drive all the way from his home with the average speed of 60 mph. Due to
    15·1 answer
  • Write the equation of the line, given the y- and x-intercepts:
    13·2 answers
  • Pls help me with this fraction problem
    15·1 answer
  • What is best buy £3.99 5kg or 3.2kg £2. 60?​
    9·1 answer
  • 3y+2x-4+5x+7<br> Simplify
    13·1 answer
  • Help me, answer if you know also pls don’t waste my points
    8·2 answers
  • 1. A new drill is used to dig a hole in the ground. At noon, the hole is 13.2 feet deep when the new drill is turned on for the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!