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2 years ago

D А C 4 B 8 E If AB= 10, what is the length of DE?

Mathematics

1 answer:

ratelena [41]2 years ago

6 0

Answer:

Please provide more information like maybe a screenshot of the question I don't know exactly what your asking.

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If point A (-5, -3) is reflected across the X-axis, What quadrant will the reflection be located in?

AnnyKZ [126]

It will be (-5, 3) so quadrant 2

8 0

2 years ago

Find x when y = 32, given that x varies inversely as y, and x = 132 when y = 4.

gizmo_the_mogwai [7]

Answer:

When y=32, x=16.5

Step-by-step explanation:

Find x when y = 32, given that x varies inversely as y, and x = 132 when y = 4.

We are given:

x varies inversely with y

We can write it as: $x\:\alpha \:\frac{1}{y}$

$x=\frac{k}{y}$

We have x = 132, when y=4

We can find value of k by using these values

$x=\frac{k}{y}\\132=\frac{k}{4}\\k=132*4\\k=528$

We need to find x when y=32

$x=\frac{k}{y}\\x=\frac{528}{32}\\x=16.5$

So, when y=32, x=16.5

6 0

2 years ago

Geometry help pls math

Yanka [14]

Answer:

to find the scale factor we just need to take one of the side lengths of the larger figure, 20, and divide it by the corresponding side length in the smaller figure, 8. Therefore 20/8 is correct

Step-by-step explanation:

7 0

2 years ago

A gardenar expects that 75% of the seeds she plants will produce plants. she wants 45 plants how manybseefs should she plant

denis23 [38]

Hey You!

So, this question is basically asking you, '45 is 75% of what number?'

Use The Percentage Formula To Solve:

45 / 75 × 100 = 60

The gardener but plant 60 seeds to get 45 plants.

3 0

3 years ago

Math help 100 points <br><br> ALSO CHECK OUT MY PROFILE (MANY UNANSWERED QUESTIONS)!!!!!

Studentka2010 [4]

Midpoint formula:
$( \frac{x1 + x2}{2} \: \frac{y1 + y2}{2} )$
1. Point 1 (-2,2)
Point 2 (4,-1)

Midpoint: (-2+4/2, 2-1/2)
(2/2, 1/2)
(1, 1/2)

2. Point 1 (-3,-5)
Point 2 (2, 5)

Midpoint: (-3+2/2, -5+5/2)
(-1/2, 0)

Distance between two points formula:

$\sqrt{(x2 - x1) {}^{2} + (y2 - y1) {}^{2} }$
1. Point 1 (-2, 2)
Point 2 (4, -1)

$\sqrt{(4 + 2) {}^{2} + ( - 1 - 2) {}^{2} }$
$\sqrt{6 {}^{2} + ( - 3) {}^{2} }$
$\sqrt{36 + 9}$
$\sqrt{45}$
$6.7$
2. Point 1 (1, 2)
Point 2 (4, 7)

$\sqrt{(4 - 1) {}^{2} + (7 - 2) {}^{2} }$
$\sqrt{3 {}^{2} + 5 {}^{2} }$
$\sqrt{9 + 25}$
$\sqrt{34}$
$5.8$

3 0

2 years ago

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