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Sedbober [7]
3 years ago
12

I need help please!

Mathematics
1 answer:
kirill115 [55]3 years ago
4 0

Answer:

0.0466

Step-by-step explanation:

For a random variable X which follows a binomial distribution:

n = 7\\p = 0.35

Thus,

P(X=5)={7\choose5}(0.35)^5(1-0.35)^{7-5}\\P(X=5)={7\choose5}(0.35)^5(0.65)^{2}\\P(X=5)=0.0466

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I need help: Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 4 liters of natural oil for every
liubo4ka [24]

In order to make 441 liters of Petrolyn oil, we need 189 liters of synthetic oil.

Given, for every 3 liters of synthetic oil, we use 4 liters of natural oil.

⇒ For 1 liter of synthetic oil, we will be adding 4/3 liters of natural oil.

Let 'x' be the liters of oil needed to make 441 liters of Petrolyn oil

⇒ For 'x' liters of synthetic oil, we will need 4x/3 liters of natural oil

Total Volume = 441 liters

Volume of Synthetic oil + Volume of natural oil = 441

x + 4x/3 = 441

⇒ (3x + 4x)/3 = 441

⇒ 7x/3 = 441

⇒ x = (441×3)/7

⇒ x = 189 liters

To know more about liters :

brainly.com/question/2418593

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3 0
2 years ago
Choose the correct simplification of the expression (−2x + 8y)(9x − 3y)
butalik [34]

Answer:

=-18x^2+78xy-24y^2

Step-by-step explanation:

(-2x+8y)(9x-3y)

-18x^2+6xy+72yx-24y^2

-18x^2+(6xy+72xy)-24y^2

=18x^2+78xy-24y^2

7 0
3 years ago
Compare and contrast similar and congruent figures
NeTakaya

Answer: Congruent means being exactly the same. When two line segments have the same length, they are congruent. When two figures have the same shape and size, they are congruent. ... Similar means that the figures have the same shape, but not the same

Step-by-step explanation:

8 0
3 years ago
Determine any data values that are missing from the table, assuming that the data represent a linear function.
posledela

Answer:

  • d. Missing x:11 Missing y:19​

Step-by-step explanation:

<u>It can be determined that the function is:</u>

  • y = 0.5x + 12.5

<u>So missing x is:</u>

  • 18 = 0.5x + 12.5 ⇒ 0.5x = 5.5 ⇒ x = 11

<u>Missing y is:</u>

  • y = 13*0.5 + 12.5 = 19

<u>Missing numbers are:</u>

  • x= 11 and y = 19

Correct choice is d.

3 0
3 years ago
Read 2 more answers
How many lines of symmetry does the butterfly have?
ANTONII [103]

Answer:

one line

Step-by-step explanation:

just bring the line down the middle of the butterfly


8 0
3 years ago
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