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
bogdanovich [222]
3 years ago
12

What is the surface area for this?

Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0

It is 6 sq. units. I hope you do well. Have a wonderful day.

You might be interested in
A N S W E R Q U I C K P L E A S E
chubhunter [2.5K]

Answer:

1. A

2. D

3. D

Step-by-step explanation:

The standard form of a parabola is

y=\frac{1}{4p}(x-h)^2+k            ..... (1)

Where, (h,k) is vertex, (h,k+p) is focus and y=k-p is directrix.

1. The directrix of a parabola is y=−8 . The focus of the parabola is (−2,−6) .

k-p=-8                   ...(a)

(h,k+p)=(-2,-6)

k+p=-6            .... (b)

h=-2

On solving (a) and (b),  we get k=-7 and p=1.

Put h=-2, k=-7 and p=1 in equation (1).

y=\frac{1}{4(1)}(x-(-2))^2+(-7)

y=\frac{1}{4}(x+2)^2-7

Therefore option A is correct.

2 The directrix of a parabola is the line y=5 . The focus of the parabola is (2,1) .

k-p=5                   ...(c)

(h,k+p)=(2,1)

k+p=1            .... (d)

h=2

On solving (c) and (d),  we get k=3 and p=-2.

Put h=2, k=3 and p=-2 in equation (1).

y=\frac{1}{4(-2)}(x-(2))^2+(3)

y=-\frac{1}{8}(x-2)^2+3

Therefore option D is correct.

3. The focus of a parabola is (0,−2) . The directrix of the parabola is the line y=−3 .

k-p=-3                   ...(e)

(h,k+p)=(0,-2)

k+p=-2            .... (f)

h=0

On solving (e) and (f),  we get k=-2.5 and p=0.5.

Put h=0, k=-2.5 and p=0.5 in equation (1).

y=\frac{1}{4(0.5)}(x-(0))^2+(-2.5)

y=\frac{1}{2}(x)^2-2.5

y=\frac{1}{2}(x)^2-\frac{5}{2}

Therefore option D is correct.

5 0
3 years ago
Work out the area of this circle. Give you answer in terms of pi and state it’s units
tino4ka555 [31]

Answer:

49π

Step-by-step explanation:

area of circle = πr^2

<em>Handy Tip: cherry pies delicious; apple pies are(R) too(2)! so C = πd and A = πr^2</em>

diameter = 14 cm

radius = 14/2 = 7cm

area of circle = π(7)^2

area of circle = 49π

Hope that helps!

3 0
3 years ago
5/4 (x - 5)= -6 what is x?
seropon [69]
So, you want to do the operations on both sides.
5/4 (x-5)=-6 becomes
x-5= -6/(5/4)
becomes
x= -6/(5/4)+5

and x=0.2
Hope this helped!
5 0
3 years ago
Read 2 more answers
Answer 2 and 3 plz I really need this
vodka [1.7K]

Answer:

2. (3/6)/4 = 1/8

3. (1/3)/(1/4) = 4/3

Step-by-step explanation:

To solve these expressions, simply solve them by multiplying the reciprocal of the bottom number times the fraction in the numerator:

2. (3/6)/4

   3/6 x 1/4

   3/24

   1/8

3. (1/3)/(1/4)

    1/3 x 4

    4/3

4 0
3 years ago
Evaluate sec 3pi/2 to the nearest hundredth. The angle is given in radians. 0 1 undefined –1
Sever21 [200]
\cos\dfrac{3\pi}2=0\implies \sec\dfrac{3\pi}2=\dfrac10

but this quantity is undefined.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Expand the expression 3 (y+5) using a visual model.
    5·1 answer
  • Hello I need help on this math question can you please help me with this and thank you so very much.:)
    10·1 answer
  • Solve the differential equation dy/dx=2*y/x,x&gt;0 simplify?
    12·1 answer
  • (45 points)
    15·1 answer
  • Move the numbers to the blanks to order them from least to greatest value.
    9·2 answers
  • What are the zeros of f(x) = x^2 - x - 12?
    7·1 answer
  • a researcher wants to know the typing speed of the students in a large vocational school. the population standard deviation is p
    13·1 answer
  • Jimmy is going scuba diving. He started at 10 ft below sea level. He then dove 15 ft further, then he got nervous and came up 5
    14·1 answer
  • What are the transformations to this quadratic function y= (x+4) power of 2 - 8
    12·1 answer
  • Yaahkwjjqhqhwauhwshakwhsksjwhsjwhsjksjshdksbshxnxhrjdns
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!