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3 years ago

Triangle ABC is similar to triangle DEF. Find the value of side length DE. Side length DE is cm.

Mathematics

1 answer:

Art [367]3 years ago

5 0

Answer:

??? I can't see the picture

Step-by-step explanation:

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Solving equations (algebra). Thank you!

LenKa [72]

Answer:

$\large\boxed{\dfrac{1}{x^2}+x^2=23}$

Step-by-step explanation:

$\left(\dfrac{1}{x}+x\right)^2=25\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\\left(\dfrac{1}{x}\right)^2+2(x\!\!\!\!\diagup)\left(\dfrac{1}{x\!\!\!\!\diagup}\right)+x^2=25\\\\\dfrac{1}{x^2}+2+x^2=25\qquad\text{subtract 2 from both sides}\\\\\dfrac{1}{x^2}+x^2=23$

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3 years ago

Combine the like terms to create an equivalent -3х – 6+(-1)

pishuonlain [190]

You can combine the -6 and -1 to -7. So the expression can be simplified as -3x-7

4 0

3 years ago

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IrinaK [193]

Answer:

its not letting me look

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Solve for the base. Round to hundredths when necessary.

Elena-2011 [213]

Answer:

2730.54
18.8%
62.5% (decrease)

Step-by-step explanation:

The applicable formula is ...

rate = portion/base

so ...

base = portion/rate

Of course, a percentage is a fraction that has been multiplied by 100%.

1. base = portion/rate = 456/0.167 ≈ 2730.54

The base is about 2730.54.

2. rate = portion/base = 50/266 ≈ 0.18797 ≈ 18.8%

The rate is about 18.8%.

3. The decrease can be figured from ...

rate of change = (new amount)/(original) -1 = 33/88 -1

= -5/8 = -0.625 = -62.5%

The rate of decrease is 62.5%.

6 0

3 years ago

A soup that serves 16 people calls for 2 cans of chicken, 4 cups of chicken broth, 6 cups of milk, and 4 cups of potatoes. How m

laiz [17]

The answer is 8 poeple

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3 years ago