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3 years ago

V=Xf; speed = wavelength x frequency

1 answer:

4 0

I don’t understand your questions because it’s all connected together. Could you maybe separate the actual question in the comments for me to help?

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PLEASE HELP I WILL GIVE BRAINIEST

balu736 [363]

Answer:

m ≤ - 10

Step-by-step explanation:

m/-5 ≥ 2

Multiply both sides by -5 to isolate m. Because we are multiplying by a negative, we must flip the sign.

m ≤ -10

8 0

3 years ago

PLEASE HELP ME thank you answer needs to be in simplest radical form find d

sweet [91]

Answer:

$d=10$

Step-by-step explanation:

Pythagorean theorem:

$d^2+d^2=10\sqrt{2}^2,\\2d^2=200,\\d^2=100,\\d=\boxed{10}$

Alternative:

$\cos 45^{\circ}=\frac{d}{10\sqrt{2}},\\\frac{\sqrt{2}}{2}=\frac{d}{10\sqrt{2}},\\2d=10\sqrt{2}\cdot \sqrt{2},\\2d=20,\\d=\boxed{10}$

Alternative (derived from the Pythagorean theorem):

All 45-45-90 triangles have side lengths $x-x-x\sqrt{2}$ , where $x\sqrt{2}$ is the hypotenuse. Since this triangle's hypotenuse is $10\sqrt{2}$ , its sides are $10-10-10\sqrt{2}$ .

3 0

3 years ago

Read 2 more answers

Write and solve a word problem for the expression 8 divided by 1/2.

galben [10]

Answer:

if 8 times 1/2 is 4 then what does 8 divided by 1/2 equal. 16 is the answer

Step-by-step explanation:

8 divided by 0.5(1/2) is 16

if you multiply a decimal with a number it will be a smaller number as if you divide it will be a bigger number

6 0

3 years ago

Which of the following is one of the cheapest routes to pass through each vertex once starting and ending with

Brut [27]

Answer:

240$

Step-by-step explanation:

$200

OCS

$230

$240

$310

ABCDA. $960

ACDBA. $900

ACBDA. $960 =240

5 0

4 years ago

Paraphin [41]

Step-by-step explanation:

<h3>I hope the picture above helps.</h3>

7 0

1 year ago