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2 years ago

Describe its graph. 4 – 5x > 19

Mathematics

1 answer:

ira [324]2 years ago

7 0

Answer:

X is greater than 4.6

Step-by-step explanation:

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What is the solution to : 8x -3 (2x-4)=3 (x-6)

Leona [35]

Answer:

Step-by-step explanation:

8x - 6x + 12 = 3x - 18

2x + 12 = 3x - 18

-x + 12 = -18

-x = -30

x = 30

8 0

3 years ago

Read 2 more answers

Multiply and rewrite the system: 16푥−10푦=10 −8푥−6푦=6 solving for elimination

Artyom0805 [142]

Hmmm I think 16 - 10 = 10 ( - 8 - 6 ) = 6

5 0

2 years ago

Ashley draws a square that has a diagonal of 15 centimeters. What is the length of one side of the square? Round your answer to

DochEvi [55]

<span>The square is equal so all sides have equal sides. Soooo...

s2 (s squared) + s2 = 15 (squared)

15 x 15 = 225

225/2 = 112.5

Now you just have to get the square root. So go onto ur calculator. Which equals 10.606
</span>

3 0

2 years ago

A certain standardized test's math scores have a bell-shaped distribution with a mean of 530 and a standard deviation of 119. Co

kumpel [21]

Answer:

a) 68.2%

b) 31.8%

c) 2.3%

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 530

Standard Deviation, σ = 119

We are given that the distribution of math scores is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(test scores is between 411 and 649)

$P(411 \leq x \leq 649)\\\\= P(\displaystyle\frac{411 - 530}{119} \leq z \leq \displaystyle\frac{649-530}{119})\\\\= P(-1 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -1)\\= 0.841 - 0.159 = 0.682 = 68.2\%$

b) P(scores is less than 411 or greater than 649)

$P(x < 411 < x, x > 649)\\=1 = P(411 \leq x \leq 649)\\=1 - 0.682\\=0.318 = 31.8\%$

c) P(score greater than 768)

P(x > 768)

$P( x > 768) = P( z > \displaystyle\frac{768 - 530}{119}) = P(z > 2)$

$= 1 - P(z \leq 2)$

Calculation the value from standard normal z table, we have,

$P(x > 768) = 1 -0.977 = 0.023 = 2.3\%$

5 0

3 years ago

Shelley purchases several stuffed animals to give to charity. The price of each animal is listed in the chart. Which animal has

podryga [215]

The price of the duck because the 5 in the price of the horse is in the ones place. So you will have to divide by 10 to get to the 5 in the duck's price.

4 0

2 years ago