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3 years ago

Please choose correct statements !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Eddi Din [679]3 years ago

6 0

Answer:

Step-by-step explanation:

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What are the coordinates of side HI? (–8, 1) and (–4, –3) (–4, 7) and (–2, 5) (1, –8) and (–3, –4) (7, –4) and (5, –2)

Fynjy0 [20]

Answer:

Step-by-step explanation:

the answer is b defenitly

4 0

3 years ago

Mrs. Barker bought some books at a book sale, including 4 paperback books. 20% of all the books she bought were paperback. How m

geniusboy [140]

Answer:

Step-by-step explanation:

Number of paperback books = 4

Percentage of total books that were paperbacks = 20%

Let total number of books = x

Hence,

20% of total books = paperback books

20% of x = 4

0.2 * x = 4

0.2x = 4

0.2x / 0.2 = 4 / 0.2

x = 20

Total number of books = 20

4 0

3 years ago

Solve this plz

frozen [14]

A) 9(x + 4) = 27

9x + 36 = 27

9x = 27 - 36

9x = -9

x = -9 ÷ 9

x = -1

B) x/3 - 5 = 6

x/3 = 6 + 5

x/3 = 11

x = 11 × 3

x = 33

C) 15 + 3 ( x -7 ) = -30

15 + 3x - 21 = -30

3x + 15 - 21 = -30

3x - 6 = -30

3x = -30 + 6

3x = -24

x = -24 ÷ 3

x = -8

5 0

3 years ago

Read 2 more answers

Surface-finish defects in a small electric appliance occur at random with a mean rate of 0.3 defects per unit. find the probabil

mario62 [17]

Answer: Probability that a randomly selected unit will contain at least two surface- finish defect is 0.04.

Step-by-step explanation:

Since we have given that

Mean rate defects per unit = 0.3

Since we will use "Poisson distribution":

$P(X=K)=\frac{e^{-\lambda}\lambda^k}{k!}$

But we need to find the probability that a randomly selected unit will contain at least two surface-finish defect.

$P(X\geq 2)=1+P(X=0)+P(X=1)$

So,

$P(X=0)=\frac{e^{-0.3}0.3^0}{0!}=e^{-0.3}=0.74\\\\P(X=1)=\frac{e^{-0.3}\times 0.3}{1}=0.22$

so, it becomes,

$P(X>2)=1-(0.74+0.22)=1-0.96=0.04$

Hence, probability that a randomly selected unit will contain at least two surface- finish defect is 0.04.

4 0

4 years ago

How do you do slope in mathematics?

klasskru [66]

Answer:

Use the equation y2 - y1 over x2 - x1.

Step-by-step explanation:

In instances where they ask you to find the slope of an equation, they will either provide a graph or points on the line. If there are points, label them correctly as x1, x2, y1, and y2. Then, input it into the equation and solve for the slope.

Most times, it will be a fraction indicating rise of run - for instance, 1/2.

In the instance that a graph is provided, look at the slope, take a point that is plotted easily where you can simply see the x and y values, and calculate the rise over run to the next plotted value.

6 0

3 years ago