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3 years ago

I need help with This and choose the right answer

Mathematics

2 answers:

zubka84 [21]3 years ago

4 0

Help what is this answer isa,b,c,d

Sati [7]3 years ago

4 0

I think the answer is C because there are a 100 boxes and 70 are colored in to represent .70.

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Find the x and y intercepts.

Roman55 [17]

-3/4x + 5/6 y = 15

Multiply through by 6

-9/2x + 5y = 90

Add 9/2x to both sides

5y = 90 + 9/2x

Divide both sides by 5

y = 18 + 9/10x

y = 9/10x + 18
Comparing with the general equation of a straight line y = mx + c

Gradient (m) = 9/10 or 0.9
and the y - intercept (c) = 18

3 0

3 years ago

If you horizontally stretch the quadratic parent function, f(x)= x^2, by a factor of 4, what is the equation of the new function

Sauron [17]

Answer:

$f(x) = \frac{1}{16}x^2$

Step-by-step explanation:

If the graph of the function $y=f(hx)$ represents the transformations made to the graph of $y= f(x)$ then, by definition:

If $0$ the graph is stretched horizontally by a factor $\frac{1}{h}$

If $h> 1$ the graph is compressed horizontally by a factor $\frac{1}{h}$

In this problem we have the parent function $y=x^2$ And we know that it stretches horizontally by a factor of 4

Therefore

$0$ and $h=\frac{1}{4}$

The transformation is:

$y=f(\frac{1}{4}x)$

And the function is:

$f(x) = (\frac{1}{4}x)^2$

5 0

4 years ago

Guided Practice

satela [25.4K]

B if you put it in a graphing calc that is the vertex of 2x^2+1

5 0

3 years ago

How many ways are there to select 7 countries in the United Nations to serve on a council if 3 is selected from a block of 54, 1

Strike441 [17]

Answer:

Total number of ways will be $=8.44727\times 10^{10}ways$

Step-by-step explanation:

We have to select 7 countries

3 countries selected from a block of 54

So number of ways of selecting these three countries $=^{54}c_3=\frac{54!}{3!51!}=\frac{54\times 53\times \times 52\times 51!}{6\times 51!}=24804ways$

Now 1 country is selected from 66 block

So number of ways to select 1 country = $=^{66}c_1=\frac{66!}{1!65!}=\frac{66\times \times 65!}{1\times 65!}=65ways$

Now next 3 country is selected from 69 country

So $=^{69}c_3=\frac{69!}{3!66!}=\frac{69\times68\times 67 \times 66!}{6\times 66!}=52394ways$

So total number of ways to select 7 countries = 24804×65×52394 $=8.44727\times 10^{10}ways$

8 0

3 years ago

Which ordered pair is a solution to every linear equation of the form y = mx, where m is a real

krok68 [10]

The ordered pair which is a solution to every linear equation of the form given is; (0, 0).

<h3>Which ordered pair is a solution to the linear equation?</h3>

It follows from the task content that the ordered pair which satisfies the equation of the form y =Mx be determined.

On this note, since the product of any real number, slope in this scenario and 0 is; 0.

Ultimately, it follows that the required ordered pair is; (0, 0) for any real number value of the slope, m.