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elixir [45]
2 years ago
10

Pls helpppppppppp meeeeeeeeeeeeeeee

Mathematics
1 answer:
yarga [219]2 years ago
7 0

Answer:

B. \frac{1}{5}

Hope this helped. A brainliest would be very much appreciated. (I need 4 brainliest so I can level up) :)

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PLEASE HELP 40 POINTS PLSSSSSSSS
sineoko [7]

Answer:

Point C

Step-by-step explanation:

Trust me it is correct

make me brainiest because I answered first pls

8 0
3 years ago
Plz any1 need help on this question
Andreas93 [3]

Since the intersection is - by definition - common to both sets, we can work out the number of people that use only the fitness suite or the swimming pool.

We know that 57 people use the fitness suite, but 36 of those are already counted in the intersection. So, 57-36=21 people use only the fitness suite.

The same goes for the swimming pool: 49-36=13 people use only the swimming pool.

So, we have:

  • 21 people using fitness suite only
  • 13 people using swimmng pool only
  • 36 people using both

This sums to 21+13+36=70 people. We deduce that 30 people don't use any of the features.

6 0
3 years ago
2^3 times 2^3+= <br> what does this eqaul
VLD [36.1K]

Answer:

36

Step-by-step explanation:

2x3 x 2x3 = 36

Sorry if this didnt help

3 0
2 years ago
Read 2 more answers
Type the correct answer in each box. (____)
trapecia [35]

Answer:

1. -16; 2. +64; 3. 16

Step-by-step explanation:

The formula for the volume of a cylinder is

V = πr²x

Data:

r = (x - 8)   mm

V = 1024π mm³

Calculations:

1. Find the cubic equation  

V = πr²h

1024π = π(x - 8)² × x

Divide each side by π

1024 = x(x - 8)²  

1024 = x(x² - 16x  + 64)

1024 =    x³ - 16x² + 64x

x³ - 16x² + 64x - 1024 = 0

2. Solve the cubic equation

The general formula for a third-degree polynomial is

f(x) = ax³ + bx² + cx + d

Your polynomial is  

f(x) = x³ - 16x² + 64x - 1024

a = 1; d = -1024

According to the <em>rational roots theorem</em>, the possible roots are

factors of d/factors of a

Factors of d = ±1, ±2, ±4, ±8, ±16, ± 32, ± 64, ±128, ±256, ±512, ±1024

Factors of a = ±1

Potential roots are x = ±1, ±2, ±4, ±8, ±16, ± 32, ± 64, ±128, ±256, ±512, ±1024

That's a lot of possibilities to check by trial and error. I will just use the one that works.

Try x = 16 by synthetic division.

16|1  -16   64  -1024

  <u>|     16     0   1024 </u>

   1     0   64        0

So,

(x³ - 16x² + 64x - 1024)/(x – 16) = x² + 64

and

(x - 16)(x² + 64) = 0

x - 16 = 0        x² + 64 =    0

     x = 16       x²         = -64

                       x          =  ±8i

There is only one real root: x = 16 mm

6 0
3 years ago
Find the value of x. <br><br><br><br><br><br><br> 60o<br><br> 79o<br><br> 70o<br><br> 47o
LekaFEV [45]
180-2(55)-x=0
180-110-x=0
70-x=0
-x=-70
x=70°
3 0
3 years ago
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