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3 years ago

The figure shows ΔDEF and ΔD'E'F'. Fill in each entry box with the answer.

Mathematics

1 answer:

V125BC [204]3 years ago

3 0

9514 1404 393

Answer:

(a, b) = (-2, 0)
no

Step-by-step explanation:

Reflecting D over y=1 moves it to D'(-2, 4). An additional translation of (-2, 0) is required to move it to D'(-4, 4).

The translation only affects the x-coordinate, so can occur either before or after the reflection, which only affects the y-coordinate.

The order of transformations does not matter.

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Geometry one help please!

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2 years ago

Helen has 48 cubic inches of clay to make a solid square right pyramid with a base edge measuring 6 inches. Which is the slant h

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Answer: 5 inches

Step-by-step explanation:

Given: Volume of clay = 48 cubic inches

If we make a solid square right pyramid with a base edge a= 6 inches.

Then its base area = $a^2=6^2=36\ inches^2$

we know that volume of square right pyramid= $\frac{1}{3}\times\ a^2h$

Therefore, volume of square right pyramid made by all of clay= $\frac{1}{3}\times\ a^2h$ =48 cubic inches

$\Rightarrow\frac{1}{3}\times\ (36)\times\ h=48\\\Rightarrow12h=48\\\Rightarrow\ h=4\ inches.....\text{[Divide 12 on both sides]}$

Now, slant height $l=\sqrt{(\frac{a}{2})^2+h^2}$

$\\\Rightarrow\ l=\sqrt{3^2+4^2}\\\Rightarrow\ l=\sqrt{9+16}\\\rightarrow\ l=\sqrt{25}\\\Rightarrow\ l=5$

The slant height of the pyramid if Helen uses all the clay=5 inches

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2 years ago

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Is 42° correct?? Please help

Romashka [77]

X=40 degrees because it s on the circle. arc AD+arc DC=180 arc DC is 100 so AD is 80. That means x must be 40.

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3 years ago

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sleet_krkn [62]

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Solve the following two equations. Show all of your

Elena L [17]

Step-by-step explanation:

Given that,

Two equations,

3x + 11 = 11 .....(1)

And

3(x - 3) = 45

3x-9=45 ....(2)

Subtract 11 on both sides of equation (1).

3x + 11-11 = 11-11

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x = 0

Add 9 to both sides of equation (2)

3x-9+9=45+9

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Hence, the solution of equation (1) is x=0 and form equation (2) x = 18.

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2 years ago