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3 years ago

True or false.

Mathematics

1 answer:

liubo4ka [24]3 years ago

6 0

Answer - true

explanation- because i know

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Find xy when x(-7,10) and y(3,4)

Gnoma [55]

Answer:

Distance xy = 11.66 unit (Approx)

Step-by-step explanation:

Given:

x(-7,10)

y(3,4)

Find:

Distance xy

Computation:

Distance = √(x2-x1)²+(y2-y1)²

Distance xy = √(3+7)²+(4-10)²

Distance xy = √ 100 + 36

Distance xy = 11.66 unit (Approx)

4 0

3 years ago

7) Select the best method to solve the system.

kenny6666 [7]

I’m my opinion the best method is elimination

7 0

3 years ago

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8. Jasmine is playing a game where she moves a piece on a coordinate grid. Over three turns, she moves her

olga2289 [7]

Answer:

28 units.

Step-by-step explanation:

The distance between two given points ( $x_{1},y_{1}$ ) and ( $x_{2},y_{2}$ ) is given by the formula

$\sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2})^{2}}$

So, the distance between points (-2,-4) and (-1,6) is

$\sqrt{(-2 - (- 1))^{2} + (-4 - 6)^{2}} = \sqrt{101} = 10.05$ units.

Now, the distance between points (-1,6) and (3,8) is

$\sqrt{(-1 - 3)^{2} + (6 - 8)^{2}} = \sqrt{20} = 4.47$ units

Again, the distance between the points (-2,-4) and (3,8) is

$\sqrt{(- 2 - 3)^{2} + (-4 - 8)^{2}} = 13$ units.

Therefore,the perimeter of the triangle is (10.05 + 4.47 + 13) = 27.52 ≈ 28 units. (Approximate)

7 0

4 years ago

How many waffles can be made from 1 dozen eggs, assuming you have enough of all other ingredients?given: 2 cups flour + 3 eggs +

romanna [79]

1 dozen is 12. 12/3 * 4 = 16 waffles.

5 0

4 years ago

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Solve the radical equation. square root 6n-11= n – 3 Which solution is extraneous? A.)2

Anvisha [2.4K]

ANSWER

D) 10

EXPLANATION

We want to solve the radical equation,

$\sqrt{6n - 11} = n - 3$

Square both sides,

$6n - 11 = (n - 3) ^{2}$

Expand brackets on right hand side,

$6n - 11 = {n}^{2} - 6n + 9$

Rewrite in general quadratic equation form,

${n}^{2} - 12n + 20 = 0$

Factor to obtain,

$(n - 2)(n - 10) = 0$

Apply the zero product principle to get,

$n = 2 \: or \: n = 10$

We put n=2 into the equation to get,

$\sqrt{6(2) - 11} = 2 - 3$

$1 = - 1$

This statement is false, hence 2 is an extraneous solution

We put n=10, to get

$\sqrt{6(10) - 11} = 10 - 3$

$\sqrt{49} = 7$

$7 = 7$

This is true, hence the only solution is
$n = 10$

3 0

4 years ago

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