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2 years ago

Pls answer this i will mark brainlest

Mathematics

1 answer:

vodomira [7]2 years ago

7 0

Answer:

Answer is a

Step-by-step explanation:

it is the only answer that makes sense

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The midpoint of AB is M(1, 1). If the coordinates of A are (3, -3), what are the coordinates of b

Black_prince [1.1K]

Answer:

Midpoint is ( Average of x’s, Average of y’s )

1 = (x + 7)/2

2 = x + 7, x = - 5

and - 1 = (y + (-4))/2

so - 2 = y - 4 and y = 2

Pt B = (- 5, 2)

6 0

3 years ago

If 10x+6y=7 is a true equation, what would be the value of 6(10x+6y)?

aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

We know that 10x + 6y = 7, and so

6(10x + 6y) = 6(7) = 42

8 0

3 years ago

What are the coordinates of the point on the directed line segment from (-1, -1) to

Studentka2010 [4]

The partitions involves dividing the line into subsegments

The coordinate of the point on the directed line segment is (0.5,-2)

<h3>How to partition the line?</h3>

The given parameters are:-

line segment = (-1, -1) to (5,-5)

Segment ratio = 1 : 3

The coordinates of the partition is calculated as:

$(x,y) = (\frac{mx_2 + nx_1}{m+ n},\frac{my_2 + ny_1}{m+ n})$

Substitute known values

$(x,y) = (\frac{1 *5 + 3 * -1}{1+ 3},\frac{1 *-5 + 3 * -1}{1+ 3})$

Evaluate the products

$(x,y) = (\frac{2}{4},\frac{-8}{4})$

Evaluate the quotients

$(x,y) = (0.5,-2)$

Hence, the coordinate of the partition is (x,y) = (0.5,-2)

Read more about line partitions at:

brainly.com/question/12959377

7 0

2 years ago

Help with these please! Write the equation in slope intercept form (y=mx+b) of each graph.

olga_2 [115]

Y=-1/2+2

The y intercept is clearly 2 and you're going down 2 over two every time so your slope is -1/2.

4 0

3 years ago

A sample of 900 computer chips revealed that 75% of the chips do not fail in the first 1000 hours of their use. The company's pr

Vaselesa [24]

Answer:

No the evidence is not sufficient

Step-by-step explanation:

From the question we are told that

The sample size is $n = 900$

The sample proportion is $\r p = 0.75$

The population proportion is $p = 0.72$

The Null hypothesis is

$H_o : p = 0.72$

The Alternative hypothesis is

$H_a : p > 0.72$

The level of significance is given as $\alpha = 0.05$

The critical value for the level of significance is $t_{\alpha } = 1.645$

Now the test statistic is mathematically evaluated as

$t = \frac{\r p - p }{ \sqrt{\frac{p(1-p)}{\sqrt{n} } } }$

substituting values

$t = \frac{ 0.75 - 0.72 }{ \sqrt{\frac{0.72 (1-0.72)}{\sqrt{900} } } }$

$t = 0.366$

Since the critical value is greater than the test statistics then the Null hypothesis is rejected which there is no sufficient evidence to support the claim

8 0

4 years ago