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3 years ago

I really need help on this help me please

Mathematics

2 answers:

Eduardwww [97]3 years ago

8 0

Answer:

by migration

Step-by-step explanation:

people believed in things then moved and showed others

IrinaK [193]3 years ago

6 0

Answer:

Step-by-step explanation: different cultures pick up another cultures way of living and soon it becomes there way of life as well, 6th grade social studies I feel you.

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Anil wants to multiply 5, 6, and 3. Which expression could Anil write in the box to

matrenka [14]

Answer:

5x18

Step-by-step explanation:

5x6x3 and 5x18 equal 90

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3 years ago

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The school has 550 students, 30 teachers, and 10 administrators. What is the ratio of teachers to students?

Alik [6]

Answer: 55:3

Step-by-step explanation:

550/10=55 <- students

30/10=3 <- Teachers

55:3 (last option) ||btw can u help me on my question?

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3 years ago

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The equation of the graphed line in point-slope form is?, and it’s equation in slope-intercept form is?

tester [92]

ANSWER

Point-slope form:

$y - 3 = -\frac{3}{5} (x + 2)$

Slope-intercept form:

$y= -\frac{3}{5} x + \frac{9}{5}$

EXPLANATION

The graphed line passes through

$(-2,3) \: \: and \: \: (3,0)$

The slope of this line is determined using

$m = \frac{y_2-y_1}{x_2-x_1}$

We substitute the points to get;

$m = \frac{0 - 3}{3 - - 2}$

$m = -\frac{3}{5}$

The point-slope formula is:

$y-y_1 = m(x - x_1)$

Substitute the first point and slope to get:

$y - 3 = -\frac{3}{5} (x - - 2)$

$y - 3 = -\frac{3}{5} (x + 2)$

To find the slope-intercept form, we expand to get:

$y= -\frac{3}{5} x - \frac{6}{5} + 3$

$y= -\frac{3}{5} x + \frac{9}{5}$

4 0

3 years ago

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15 pages in 2 days ___ in 1 day

alexandr1967 [171]

Answer:

7.5 pages.

Step-by-step explanation:

You divide 15 by 2 to work out 1 day.

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3 years ago

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The outcome X of an experiment has only two possible values, X= 4 and X= 5. Given that the expected outcome E(X)= 4.2, find P(X=

alukav5142 [94]

Answer:

P(X=5) = 0.2

Step-by-step explanation:

Expected outcome, E(x) = ∑XP(X)

∑ = Summation

X = outcomes

P(X) = probability of an outcome

E(X) = (4*P(X=4)) + (5*P(X=5)) = 4.2

So, 4P(X=4) + 5P(X=5) = 4.2 ... equation 1

But the sum of probabilities = 1

That is, P(X=4) + P(X=5) = 1 ... equation 2

Thus, we have the following system of equations

4P(X=4) + 5P(X=5) = 4.2 ... equation 1

P(X=4) + P(X=5) = 1 ... equation 2

Multiply equation 2 by 4

4*P(X=4) + 4*P(X=5) = 4*1

4P(X=4) + 4P(X=5) = 4 ... equation 3

4P(X=4) + 5P(X=5) = 4.2 ... equation 1

4P(X=4) + 4P(X=5) = 4 ... equation 3

Subtract equation 3 from 1

4P(X=4) - 4P(X=4) + 5P(X=5) - 4P(X=5) = 4.2 - 4

P(X=5) = 0.2

3 0

3 years ago