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
Lelu [443]
3 years ago
6

HELP PLEASE!

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
4 0

Answer:

a

Step-by-step explanation:

y=6x²+12x+2

y=4x²+16x+16

6x²+12x+2=4x²+16x+16

6x²-4x²+12x-16x+2-16=0

2x²-4x-14=0

x²-2x-7=0

x²-2x+1-1-7=0

(x-1)²=8

x-1=±√8=±2√2

x=1±2√2

x≈1±2.83

x≈3.83,-1.83

x=2√2 -1≈1.828≈1.83

You might be interested in
I need help fast please <br><br>Solve this and show steps <br><br>4.5×8-(0.4+9.6-(3.6-1.8))<br>​
valentina_108 [34]

Answer:

27.8

Step-by-step explanation:

You need to do brackets first

3.6-1.8 = 1.8

Then substitute

4.5 x 8- (0.4 + 9.6- 1.8)

0.4+9.6-1.8=8.2

4.5 x 8 - 8.2 =27.8

7 0
2 years ago
By what percentage must the diameter of a circle be increased to increase its area by 50%?
katovenus [111]
The circle increase in area will be by a factor of 1.5
So corresponding increase in the diameter will be a factor of  sqrt 1.5 = 1.2247

Answer is 22.47 %
5 0
3 years ago
Read 2 more answers
2. What is the value of the expression?
polet [3.4K]

Answer:

B. 8.35

Step-by-step explanation:

3.5 x 1.7 = 5.95

5.95 + 2.4 = 8.35

You multiply first because of PEMDAS.

P=parenthesis

E=exponents

M=multiply
D=divide
A=add
S=subtract

4 0
1 year ago
Read 2 more answers
Express x2-8x+5 in the form (x-a)2 -b where a and b are intergers
Soloha48 [4]

(x-4)^2-11

How?

\\ \sf\longmapsto (x-4)^2-11

\\ \sf\longmapsto x^2-8x+16-11

\\ \sf\longmapsto x^2-8x+5

Verified

3 0
2 years ago
A cylinder has a base area of 64π m2. Its height is equal to twice the radius. Identify the volume of the cylinder to the neares
Maurinko [17]

Answer:

3215 .36 m³ is the required volume.

Step-by-step explanation:

Base area of Cylinder = 64π m²

Height of cylinder is equal to twice the radius .

As we know that ,

★Base Area of Cylinder = πr²

where,

π is taken as 22/7 or 3.14

r is the radius of cylinder

Substitute the value we get

↝ 64 π = πr²

↝ 64 = r²

↝ √64 = r

↝ 8 = r

↝ r = 8 m

Now, it is given that height is equal to twice of radius

Therefore ,

height = 2r = 2×8 = 16 m

★Volume of Cylinder = πr²h

substitute the value we get

↝ volume of Cylinder = 3.14 × 8² × 16

↝volume of Cylinder = 3.14 × 64 × 16

↝volume of Cylinder = 3215 .36 m²

Hence, the required volume of cylinder is 3215 .36 m³.

6 0
2 years ago
Other questions:
  • Use the descriminant to describe the roots of each equation. Then select the best description. 16x^2+8x+1=0
    10·1 answer
  • What is the spees of the boat in meters per
    8·1 answer
  • The estimated probability of a football player scoring a touchdown during a particular game is 26%. If several simulations of th
    11·2 answers
  • 3. What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?
    13·2 answers
  • Shirts are nine dollars each you have a coupon that saves you five dollars off your purchase how much would it cost you to buy 6
    6·1 answer
  • Which expression is equal to 37√ ?
    9·2 answers
  • The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass
    8·1 answer
  • How many miles do you drive to school a statistical or a non-statistical question
    8·2 answers
  • Find the value of x. Round to the nearest tenth <br> PLEASE HELP
    6·1 answer
  • Find the equation of the line with x-intercept 4 and y-intercept -1 in slope-intercept<br> form.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!