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3 years ago

Please help quick please

Mathematics

1 answer:

ankoles [38]3 years ago

5 0

Answer:

Step-by-step explanation:

√(4²+6²)=√52=2√13≈7.2

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If y varies directly as x and y = 4 and x = 10, what does x equal when y = 7?

soldi70 [24.7K]

Answer: x = 17 $\frac{1}{2}$

Step-by-step explanation:

From the question: y α x

⇒ y = kx

y=4 and x = 10 implies

4 = 10k

k = 4/10

k = 2/5

substitute k = 2/5 into the equation

y = 2/5 x

When y = 7 , the equation becomes

7 = $\frac{2x}{5}$

35 = 2x

35/2 =x

Therefore : 17 $\frac{1}{2}$

x =

8 0

4 years ago

What is an equivalent fraction for the following fraction?<br><br> 3/6<br><br> 1/4<br> 1/2<br> 1/3

e-lub [12.9K]

<h3>Answer: 3/6 = 1/2</h3>

Explanation:

Check out the diagram below. We have 3 pizza slices shaded out of 6 total to represent 3/6 of the entire thing. This is also 1/2 of the entire thing.

This is one visual way to see how 3/6 = 1/2.

You can multiply top and bottom of 1/2 to get 1*3 = 3 up top and 2*3 = 6 down below.

$\frac{1}{2} = \frac{1*3}{2*3} = \frac{3}{6}$

8 0

3 years ago

After being arranged and simplified which of the following equations could be solved using the quadratic formula?

AlekseyPX

Answer:

Polynomial equations that can be solved with the quadratic formula have the following properties, assuming all like terms have been simplified.

1. degree = 2 (i.e. the highest power equals exactly two)

2. the linear term (e.g. 4x, or -5x...) and constant term (e.g. 5, -30, pi, etc.) may or may not be present.

Now let's simplify and examine the given equations, and see if each can be solved with the quadratic formula:

The degree (highest power) is three, so it is not "exactly two". NO.

The degree (highest power) is two, so it is "exactly two". YES.

The degree (highest power) is one, so it is not "exactly two". NO.

The degree (highest power) is two, so it is "exactly two". YES.

Note that it is very important to simplify the equations before checking the degree.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=log%20xy%5E%7B2%7D" id="TexFormula1" title="log xy^{2}" alt="log xy^{2}" align="absmiddle" cla

swat32

Answer:

sry I can't understand how to do this question

5 0

3 years ago

Let set A = {1,3,5,7} and set B = {1,2,3,4,5,6,7,8}

Semenov [28]

Step-by-step explanation:

A elements lies on B.............

4 0

4 years ago