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3 years ago

7

Find the measure of angle A in the triangle, when angle C is 60 degrees and angle B is a right angle

1 answer:

Colt1911 [192]3 years ago

5 0

Answer:A) angle A is 30 degrees

Step-by-step explanation:

A triangle is 180 degrees total so subtract the right angle and the other angle you already have, 180-90-60 which leaves you with 30 degrees left

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A microscope slide shows 37 red blood cells out of 60 blood cells . How many red blood cells would be expected in a sample of th

JulsSmile [24]

We know that there is a total of 900 cells, and 37 of the samples 60 are red. 900/60 is our unit rate of 15. 37 times 15 is 555. We will see 555 red blood cells in all of the cells.

555 is our answer.

Please forgive any typeos because I did this on my phone.

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3 years ago

Can someone explain how to convert a quadratic function in standard form to vertex form using the "complete the square" method?

Arisa [49]

The required steps are explained below to convert the quadratic function into a perfect square.

<h3>What is the parabola?</h3>

It's the locus of a moving point that keeps the same distance between a stationary point and a specified line. The focus is a non-movable point, while the directrix is a non-movable line.

Let the quadratic function be y = ax² + bx + c.

The first step is to take common the coefficient of x². We have

$\rm y = a \left (x^2 + \dfrac{b}{a}x \right) + c$

Add and subtract the half of the square the coefficient of x,

$\rm y = a \left (x^2 + \dfrac{b}{a}x + \dfrac{b^2}{4a^2} \right) - a \times \dfrac{b^2}{4a^2} + c$

Then we have

$\rm y = a \left (x + \dfrac{b}{a} \right)^2 - \dfrac{b^2}{4a} + c$

These are the required step to get the perfect square of the quadratic function.

More about the parabola link is given below.

brainly.com/question/8495504

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2 years ago

For a bake sale, Trisha wants to make between 144 and 168 cookies. She already has 24 cookies made and has 4 hours left to bake

mafiozo [28]

She sold 57 cookies 57 will be the awnser

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2 years ago

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Mariana [72]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

A small company plans to invest in a new advertising campaign. There is a 20% chance that the company will lose $5,000, a 50% ch

Viktor [21]

A small company plans to invest in a new advertising campaign.

There is a 20% chance that the company will lose $5,000 ,

50% chance of a break even, and a 30% chance of a $10,000 profit

So the expected value from the advertisement campaign is calculated as - 20% of 5000 + 0% of 5000 + 30% of 10,000

= -1000 + 0 + 3000

= 2000

The expected value from the advertisement campaign is $2000.

So the Company must go ahead with the campaign.

Answer : Option A

Hope it helps.

Thank you ..!!

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3 years ago