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2 years ago

HELP PLS explain how you can tell that the lines 4x-10=-3 are collinear by looking equations

1 answer:

4 0

Solve the system for x and y.2y = x + 82y − 10 = 2x A) x = −3, y = 2 B) x = −2, y = 3 C) x = −5, y = 2 D) x = 0, y = -5

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I need help I forgot all about this and I would appreciate it!

miskamm [114]

Answer:

$3.75

Step-by-step explanation:

You only have to multiply 3 pounds by the $1.25 to get the cost.

5 0

1 year ago

Read 2 more answers

Evaluate [(21 + 6) − 32] ק 9 ⋅ 2.

anzhelika [568]

OK.......
Evaluating [(21 + 6) - 32] 2 * 9 $ק$
Your answer would be
-90

H0P3 It H3LPS :)

8 0

3 years ago

Answer for all please

malfutka [58]

Answer:

a) 'X' be the random variable in discrete distribution

b) The value of y = 0.2

c) The mean value or Expectation value

E (X) = 1.25

d)

The variance σ² of the discrete distribution function is

Variance ( V(x)= 1.2875

Step-by-step explanation:

Step(i):-

Given data

x : 0 1 2 3 4

P(x) : 0.30 0.35 y 0.10 0.05

Let 'X' be the random variable in discrete distribution

Given data is discrete distribution

i) If the numbers $p(x_{i} )\geq 0$ for all values of 'i'

ii) ∑P(x) = 1

Given data $p(x_{i} )\geq 0$ for all values of 'i'

∑P(x) = 1

0.30+0.35+y+0.10+0.05 =1

y + 0.8 = 1

y = 1 -0.8 = 0.2

b) The value of y = 0.2

Step(ii):-

Expectation:

Given data

x : 0 1 2 3 4

P(x) : 0.30 0.35 0.2 0.10 0.05

The mean value or Expectation value

E (x) = ∑ x p ( X = x)

= 0 × 0.30 + 1 × 0.35 + 2 × 0.2 + 3 × 0.10 + 4 × 0.05

= 0 + 0.35 + 0.4 + 0.30 + 0.2

= 1.25

Variance of X

The variance σ² of the discrete distribution function is defined by

σ² = ∑ x² p(x=x) - μ²

= 0× 0.30 + 1² × 0.35 + 2²× 0.2 +3²× 0.10 + 4²× 0.05 - (1.25)²

= 0 + 0.35 + 0.8 + 0.9 + 0.8 - 1.5625

= 1.2875

conclusion:-

The mean value or Expectation value = 1.25

The variance σ² of the discrete distribution function

V(X) = 1.2875

3 0

3 years ago

A store has a 25%, percent off sale on coats. With this discount, the price of one coat is $34.50. What is the original price of

marishachu [46]

I believe this would make the original price of the coat $46.00

6 0

2 years ago

Read 2 more answers

Which are the intercepts of the equation y+2=4(x+1) ?

Irina18 [472]

Answer:

x-intercept is ( $- \frac{1}{2}, 0$ ) and y-intercept is ( $0, 2$ )

Step-by-step explanation:

<h2>How do we find the y-intercept of a function? </h2>

We solve the equation when x=0. Let's try that with $y+2=4(x+1)$

First, let's simplify it so that it resembles $y=mx+b$ more noticeably

$y = 4x + 4 - 2 \\y = 4x + 2$

Now let's plug in 0 for x to find the y-intercept:

$y = 4\cdot 0 + 2\\y = 2$

<h2>How do we find the x-intercept of a function? </h2>

We solve the equation when y=0. Let's try this from the simplified equation we got ( $y = 4x + 2$ )

$0 = 4x + 2\\-2 = 4x\\\frac{-2}{4} = x\\x = - \frac{1}{2}$

We must remind ourselves that all y-intercepts have an x that is equal to 0 and that all x-intercepts have a y equal to 0.

That means that our x-intercept will be ( $- \frac{1}{2}, 0$ ) and our y-intercept will be ( $0, 2$ )

This corresponds to the 3rd option counting from the left.

Good luck!

3 0

2 years ago