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2 years ago

What is the equation of the line going through the points (1,1 and (4,1)?

Mathematics

2 answers:

yKpoI14uk [10]2 years ago

7 0

Answer:

y = 1

Step-by-step explanation:

Note the line passes through (1, 1 ) and (4, 1 ) both with a y- coordinate of 1

This indicate the line is horizontal and parallel to the x- axis with equation

y = c

where c is the value of the y- coordinates the line passes through, then

y = 1 ← equation of line

taurus [48]2 years ago

5 0

Y=x+1

first find your slope (0) then solve for b by inputting x and y values

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(will mark brainliest ) Which of the following best describes the expression 5(x + 2)? (5 points)

Lunna [17]

Answer:

Step-by-step explanation:

The only one of these possible answers that could be correct is the fourth one:

The product of a constant factor 5 and a 2-term factor x + 2. That '5' in front of (x+2) multiplies (x+2), and so the result is a product.

8 0

3 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

PLEASE HELP!! :( <br> 6th grade math ( I suck at math)

agasfer [191]

Answer:

Width Length

5 8.7

7.9 11.6

9 12.7

11.3 15.0

13 16.7

Step-by-step explanation:

If they gave you the width, you add 3.7 to get the length.

If they gave you the length, you subtract 3.7 to get the width.

4 0

2 years ago

Read 2 more answers

Substitution for {2x-3y=11 and -x + 2y = -6

Svetradugi [14.3K]

Step-by-step explanation:

-x+2y=-6

x-2y=6

x=2y+6

substitute in 2x-3y=11 gives us 2(2y+6)-3y=11

4y+12-3y=11

y=-1

-x+2(-1)=-6

-x=-4

x=4

7 0

3 years ago

I NEED HELP ASAP PLS WILL MARK BRINLIEST!!!

d1i1m1o1n [39]

Step-by-step explanation:

wait, I will look my lecture last year

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2 years ago