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nasty-shy [4]
3 years ago
11

Help pleaseeeeeeeeee​

Mathematics
2 answers:
JulijaS [17]3 years ago
8 0

Answer:

the answer is d

Step-by-step explanation:

Jlenok [28]3 years ago
4 0
The answer is letter D
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Lunch starts at 11:45 am and ends at 12:50 pm. How long did lunch last ?​
k0ka [10]

Answer:

1 hour and 5 minutes

Step-by-step explanation:

12 - 11 = 1 (hour)

50 - 45 = 5 (minute)

3 0
3 years ago
A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fountain. Round to the nearest hundredt
Firlakuza [10]

Answer:

Step-by-step explanation:

Ok so the formula for a circle is

A=πr2

The diameter of the semicircle is 15, so if you divide that by 2 you will get a radius of 7.5. Then, the next part of the formula is to square the radius, and to do that you need to multiply the radius by itself. You will then get an answer of 56.25. And then finally, you multiply 56.25 by pi, which is 3.14 and get 176.625. Then for the quarter circle, you have 2 side lengths of 15 feet. To find the area of the quarter circle, do pi times the radius(15), and square the answer. Then, divide the answer by 4 to get the quotient, 554.6025. 176.25 + 554.6025 is 730.8525 . That rounded to the nearest 100th is 730.85.

I really hope this helped and I'm sorry if it is incorrect.

5 0
3 years ago
What is the solution to the system of equations?
Llana [10]

Solution in attachment.

<h3>x = -6, y = 9, z = -3</h3>

3 0
3 years ago
Use the Chain Rule to find dw/dt.<br> w = xey/z, x = t3, y = 7 − t, z = 8 + 4t<br> dw<br> dt<br> =
Hitman42 [59]

\frac{dw}{dt}  =  \frac{dx}{dt} \times  \frac{dw}{dx}   +  \frac{dy}{dt} \times  \frac{dw}{dy}   +  \frac{dz}{dt} \times  \frac{dw}{dz}   \\  \frac{dw}{dt}  = 3t ^{2}  \times  {e}^{ \frac{y}{z} }  +  - t \times  \frac{x {e}^{ \frac{y}{z} } }{z}  + 4 \times  -  \frac{xy {e}^{ \frac{y}{z} } }{ {z}^{2} }   \\  \frac{dw}{dt}  =  \frac{ {e}^{ \frac{y}{z} } (3 {t}^{2} {z}^{2}   - tzx - 4xy)}{ {z}^{2} }

4 0
3 years ago
Convert the following statement using an "if-then" structure.
GaryK [48]

Answer:

  D. If John owns a dog, then he owns a cat

Step-by-step explanation:

The implication p → q (if p, then q) has the same truth table as the logical expression ~p∨q. You have the expression ...

  ~(John owns a dog) ∨ (he owns a cat)

Matching parts of this expression to the components of the expression ~p∨q, we see we can choose ...

  • p = John owns a dog
  • q = he owns a cat

and put those into the structure of the implication: if p, then q.

  If John owns a dog, then he owns a cat. . . . . matches choice D

6 0
3 years ago
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