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3 years ago

Find the distance and midpoint between (- 8, 1) and (4, 6)

Mathematics

1 answer:

Natali5045456 [20]3 years ago

5 0

Answer:

Distance: 13, Midpoint: (-2, 3.5)

Step-by-step explanation:

The distance formula is $\sqrt{(x2-x1)^{2} +(y2-y1)^{2} }$ . We can plug in the numbers from your question so it would be √(4+8)^2+(6-1)^2 = √144+25=169 =√169 = 13

The midpoint formula is ((x1+x2)/2, (y1+y2)/2), which is -8+4/2, 1+6/2 = (-2, 3.5).

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Which rate is the lowest price? $5.60 for 8 $4.80 for 6 $4.50 for 5 $0.75 each

Jet001 [13]

You can calculate percentages by first finding what 10% of a value is and then what 5 or 1% is. From there you can multiply to find multiples and then add to get the required percentage. The example below shows this.

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3 0

4 years ago

Carrie has a planter box with an area of 4/5 of a square meter. She wants to plant 10 snap pea seeds each with an equal amount o

postnew [5]

Answer: She will give 8 square meter area to school snap pea plant.

Step-by-step explanation:

Given: Area required by each planter box = $\dfrac45$ square meter

Total number of snap pea seeds = 10

The total area required = (Area required by each planter box ) x (number of snap pea seeds)

$=\dfrac45\times10\\\\=4\times2=8$

Hence, she will give 8 square meter area to school snap pea plant.

4 0

3 years ago

Slope of a parallel line with the points (7,-5) and (-5,7)

VLD [36.1K]

Answer: Negative 1 The slope of parallel lines is the same.

The attachment shows two such lines, given coordinates labeled.

Step-by-step explanation:

Find the slope of the line passing through the given points.

rise/run

Rise is the difference in y-values 7-(-5) = 12

Run is the difference between x-values -5 - 7 = - 12

The Slope is 12/-12 simplify:

slope = -1

5 0

3 years ago

How many quadrilaterals can I construct with four right angles

Andreas93 [3]

Answer:2

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Given that the population proportion is 0.82, the Normal distribution will provide a good approximation to the true sampling dis

Drupady [299]

Answer:

Then solution as long as n ≥ 56

Step-by-step explanation:

The Normal distribution will provide a good approximation to evaluate proportion tests when the following conditions are met:

n*p₀ > 10

n*q₀ > 10

As p₀ = 0,82 q₀ = 0,18 n = 13 30 56 and 100

We test:

A) n = 13 n*q₀ = 13*0,18 = 2,34 2,34 < 10

B) n = 30 n*q₀ = 30*0,18 = 5,4 5,4 < 10

C) n = 56 n*q₀ = 56 * 0,18 = 10,08

n*p₀ = 56 * 0,82 = 45,92

D) n = 100 n*q₀ = 18

n*p₀ = 82

If we test 55 we find that 55*0,18 = 9,9

Then solution as long as n ≥ 56

5 0

3 years ago