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3 years ago

11

Geometry retake pls help!!!

1 answer:

Alecsey [184]3 years ago

3 0

Answer:

∠D

∠EDC

∠CDE

Step-by-step explanation:

those are the only ways I can think of, I hope that helps :)

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REALLY URGENT. 1 3/5 divided by 2/5

Nikolay [14]

Answer:

4

Step-by-step explanation:

<em>1 3/5(2/5) = 4</em>

7 0

4 years ago

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I need this answer fast! Please!

vovangra [49]

Answer:

$\large\boxed{\begin{array}{c|c|c|c}Length:&4cm&2cm&8cm\\Width:&6cm&12cm&3cm\\Height:&9cm&9cm&9cm\end{array}}$

Step-by-step explanation:

The formula of a volume of a cube with side length a:

$V=a^3$

We have a = 6cm. Substitute:

$V=6^3=216\ cm^3$

$\begin{array}{c|c}216&2\\108&2\\54&2\\27&3\\9&3\\3&3\\1\end{array}$

$216=2\cdot2\cdot2\cdot3\cdot3\cdot3=(2\cdot2)\cdot(2\cdot3)\cdot(3\cdot3)=4\cdot6\cdot9\\\\216=2\cdot2\cdot2\cdot3\cdot3\cdot3=2\cdot(2\cdot2\cdot3)\cdot(3\cdot3)=2\cdot12\cdot9\\\\216=2\cdot2\cdot2\cdot3\cdot3\cdot3=(2\cdot2\cdot2)\cdot3\cdot(3\cdot3)=8\cdot3\cdot9\\\vdots$

7 0

3 years ago

Find the inverse of the functipn <br><br> f(x)=3x-7/2

vivado [14]

Answer:

2x+7/6

Step-by-step explanation:

an normal function would be mapping x to y, since this is the inverse we would map y to x

f(x) and y are the same so I will take f(x) as "y"

1)3x-7/2=y

3y-7/2=x

solve/isolate "y" in 3y-7/2=x to get the value of "y"

3y-7/2=x

add "7/2" to both sides

3y-7/2+7/2=x+7/2

3y=x+7/2

divide both sides by "3"

3y/3=x/3+7/2/3

simplify:

y=2x+7/6

hope this helps!

5 0

3 years ago

Cedric completed the square for the quadratic expression 5x^2−40x+15 in order to determine the minimum value of the expression,

Olegator [25]

Answer:

Step 3 is not correct (should be $(x-4)^2$ , not $(x+4)^2$

Step-by-step explanation:

The expression that we have to simplify is:

$5x^2-40x+15$

We proceed step-by-step, in order to find the mistake did by Cedric:

1) First, we factorize the 5 outside:

$5(\frac{5x^2}{5}-\frac{40x}{5}+\frac{15}{5})=5(x^2-40x+3)$ --> this step is correct

2) We add +16 and -16 inside the brackets:

$5(x^2-8x+16-16+3)$ --> this step is correct

3) We rewrite the term $(x^2-8x+16)$ as the square of a bynomial, which is $(x-4)^2$ , so the expression becomes

$5((x-4)^2-16+3)$ --> we notice that this step is wrong: in fact, Cedric wrote $(x+4)^2$ , which is not correct.

4) Now we continue: we rewrite -16+3 as -13,

$5((x-4)^2-13)$

5) Finally, we multiply the 5 by the terms in the bracket:

$=5(x-4)^2-65$

5 0

3 years ago

Help me with this pls!

Jlenok [28]

Answer:

kendall cause he is from the same state as me

Step-by-step explanation:

The answer is 1 i think

4 0

3 years ago

Read 2 more answers