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BabaBlast [244]
3 years ago
15

Help me, pleaseeeeee

Mathematics
1 answer:
fomenos3 years ago
8 0

Answer:

The answer is C and all the other options are incorrect.

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Find the slope of the line
mr Goodwill [35]

Answer:

the slope is 1

Step-by-step explanation:

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Bestie Toys faces stiff competition from FunGadgets Inc., a rival firm with which Bestie Toys has achieved differentiation parit
stich3 [128]

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안녕하세요 나쁜 소식은 내가 너무 죄송합니다 것 질문 메신저 대답 할 수 없습니다

7 0
2 years ago
A colony of 85 bacteria doubles in size every 126 minutes. What will the population be 378
SVETLANKA909090 [29]

Answer:

680 Bacteria

Step-by-step explanation:

378 is evenly divisible by 126, which is equal to 3.

The first 126 minutes, the 85 bacteria will double to 170 bacteria.

The second 126 minutes (252 minutes total), the 170 bacteria will double to 340 bacteria.

The final 126 minutes (378 minutes total), the 340 bacteria will double to 680 bacteria total.

If this helped, a brainliest would be greatly appreciated!

6 0
2 years ago
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Find y when x = 3 of the equation for y=2x+12
ser-zykov [4K]

Answer:

y = 18

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

y = 2x + 12

x = 3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                                                                                                y = 2(3) + 12
  2. Multiply:                                                                                                           y = 6 + 12
  3. Add:                                                                                                                 y = 18
3 0
3 years ago
Read 2 more answers
The random variable x has the following probability distribution: x f(x) 0 .25 1 .20 2 .15 3 .30 4 .10 a. Is this probability di
Reptile [31]

Answer and Explanation:

Given : The random variable x has the following probability distribution.

To find :

a. Is this probability distribution valid? Explain and list the requirements for a valid probability distribution.

b. Calculate the expected value of x.

c. Calculate the variance of x.

d. Calculate the standard deviation of x.

Solution :

First we create the table as per requirements,

x      P(x)         xP(x)           x²            x²P(x)

0    0.25           0               0                0

1     0.20        0.20             1              0.20

2    0.15          0.3               4             0.6

3    0.30         0.9               9             2.7

4    0.10          0.4               16             1.6

   ∑P(x)=1     ∑xP(x)=1.8               ∑x²P(x)=5.1

a) To determine that table shows a probability distribution we add up all five probabilities if the sum is 1 then it is a valid distribution.

\sum P(X)=0.25+0.20+0.15+0.30+0.10

\sum P(X)=1

Yes it is a probability distribution.

b) The expected value of x is defined as

E(x)=\sum xP(x)=1.8

c) The variance of x is defined as

V=\sum x^2P(x)-(\sum xP(x))^2\\V=5.1-(1.8)^2\\V=5.1-3.24\\V=1.86

d) The standard deviation of x is  defined as

\sigma=\sqrt{V}

\sigma=\sqrt{1.86}

\sigma=1.136

5 0
2 years ago
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