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
Flauer [41]
3 years ago
15

Determine the surface area of a sphere with radius 2 meters. Question 12 options: A) 24.2 m2 B) 16 m2 C) 50.3 m2 D) 32 m2

Mathematics
1 answer:
Nady [450]3 years ago
5 0

Answer:

C

Step-by-step explanation:

SA=4*pi*r^2

SA=4*pi*2^2

SA=4*pi*4

SA=16*pi m^2

SA≈50.2654824574

SA≈50.3 m^2

Which is C

You might be interested in
Pleaseee i need some help on these 3 questions
Zepler [3.9K]

Answer:

a) the product is equal to 953.

b) the product is greater than 443.

c) the product is greater than 181.

Step-by-step explanation:

a) 953 × 63/63 = 953

Therefore, the product is equal to 953.

b) 443 × 86/79 = 482.25

Therefore, the product is greater than 443.

c) 181 × 30/28 = 193.93

Therefore, the product is greater than 181.

Hope this helps =)

6 0
2 years ago
Plz help me with this
never [62]
A) is right
b) just subtract ljm and kjm so 145-48 = 92°
c) 9x-25=7x+7 so here you put npq=mpq+mpn and you combine terms so it's now 2x=32 then divide by 2 on both sides and x= 16
now you just plug it into 3x-5 and you get 43°
3 0
3 years ago
Find the slope intercept <br>(9,5),(7,-11)<br>y=​
grin007 [14]

Answer:

y=8x-67

Step-by-step explanation:

So the question is what is the equation for the following two coordinate points?

Well to start off what is the formula? The formula is called the linear equation. Which is y=mx+b. What does these letters or "variables" mean or represent?! Welp, m stands for the slope, which is "Δy over Δx." Some people call say "the change of y over x." I call it the rise over run. So it is saying y over x. The b in the linear equation is the y-intercept. The y-intercept is when the line crosses the y-axis.

With that being said, let's find the slope. But how? Well with the Δy over Δx. The formula is y₂-y₁ over x₂-x₁. With the two coordinate points we can label them.

y₂=5

y₁=(-11)

x₂=9

x₁= 7

Now let set it up into the equation of y over x

Slope =  <u> 5- (-11) </u> = <u> 5 + 11  </u> = <u>  16 </u> = 8

                  9-7         9-7          2

So we now have the slope! Which is 8! So put that into the linear equation!

y=8x+b

Next, we need to find b, the y-intercept! How do we do that well, we can figure it out by one of the coordinate points! Let use the (7, -11) point for example! Remember, x= 7 and y= (-11)

(-11) = 8(7) + b

(-11) = 56 + b

<u>-56   -56</u>

-67 =  b

We now have b, which is negative 67! So we need to put all the information we have found into the linear equation!

y=8x-67

6 0
3 years ago
My cousin needs help on all the questions. Please help him he is failing math
Solnce55 [7]

Answer:

  (a) more

  (b) less

  (c) more

  (d) greater

  (e) Left to right: Susan, George, Antonio, Maria

Step-by-step explanation:

When a point total is lower, more points are needed to stay in the game.

__

(a) Maria's total is less than -30, so she needs more than 30 to stay in the game. Phone #4 is the only one indicating a need of more than 30, so it is Maria's.

__

(b) Susan's total is greater than -25, so she needs less than 25* to stay in the game. Phone #1 is the only one indicating a need of less than 25, so it is Susan's.

__

(c) George's point total is lower than Susan's, so he needs more points than Susan. Susan's phone indicates she needs 20 points. Since George needs 5 more points, his is phone #2.

__

(d) Antonio needs 15 fewer points than Maria, so his total is more than Maria's total. Maria's phone indicates she needs 45 points, so Antonio only needs 30 points. His is phone #3.

__

(e) Susan needs 20, George needs 25, Antonio needs 30, Maria needs 45.

_____

* If we assume whole numbers of points, a total of "greater than -25" might be a total of -24. To bring the score to a positive value (1), <em>exactly 25 points</em> might be needed. That is, there is some ambiguity in part (b) in that Susan might need <em>less than or equal to 25 points</em>. Susan's phone could be either the first or the second.

The problem is poorly worded. The answer choices above are consistent with the problem statement overall.

6 0
3 years ago
In the figure, a pair of parallel lines Is cut by a transversal. What kind of angle are angles A and C?
Sonbull [250]

Answer: Angles A and C are vertical angles.

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Drawing a jack from a deck of cards, not replacing it, and then drawing another jack or examples of dependent variables.
    14·2 answers
  • Caleb has an offer from a credit card issuer for 0% APR for the first 30 days and 17.68%
    11·2 answers
  • This is an example of the commutative property? -4 + 8 + -7 = -7 +8 + -4 *
    8·1 answer
  • Two gears in a 3: 1 ratio gearset and with a diametral pitch of 4 are mounted at a center distance of 6 in. Find the number of t
    15·1 answer
  • −4 5/9+8/9+ 0+0+0+0+0+0+0+0=
    6·2 answers
  • Please Help Me!!!! ;)
    12·1 answer
  • The sum of two integers is -360. One of them is 60, then the other integer is
    10·1 answer
  • i'm just giving em away! Brainly, A sphere has a volume of 2,304\p mm^3. Find the diameter of the sphere.
    8·1 answer
  • Find an angle 0 coterminal to 1174°, where 0° Se &lt; 360°.
    11·1 answer
  • The radius of a circle with centre O is 5 cm. The lengths of the chords AB and BC are 6 cm and 8 cm respectively. The midpoints
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!