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3 years ago

15

Please help me, I really don't know and I'll give brainliest

1 answer:

Musya8 [376]3 years ago

6 0

Answer:

1/2

Step-by-step explanation:

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Find the value of w to make the statement true.<br>-w = -10 + 4w

Alinara [238K]

Move variable to the left. -w= -10+ 4W
-w-4W =-10
Collect like terms
-5w=-10 divide both sides by 5

8 0

3 years ago

If Sally earned $630 in interest when investing $1200 at a rate of 15% per year, how many years have passed?

jasenka [17]

630/1200*0.15=3.5.........

5 0

3 years ago

In Exercises 45–48, let f(x) = (x - 2)2 + 1. Match the<br> function with its graph

MA_775_DIABLO [31]

Answer:

45) The function corresponds to graph A

46) The function corresponds to graph C

47) The function corresponds to graph B

48) The function corresponds to graph D

Step-by-step explanation:

We know that the function f(x) is:

$f(x)=(x-2)^{2}+1$

45)

The function g(x) is given by:

$g(x)=f(x-1)$

using f(x) we can find f(x-1)

$g(x)=((x-1)-2)^{2}+1=(x-3)^{2}+1$

If we take the derivative and equal to zero we will find the minimum value of the parabolla (x,y) and then find the correct graph.

$g(x)'=2(x-3)$

$2(x-3)=0$

$x=3$

Puting it on g(x) we will get y value.

$y=g(3)=(3-3)^{2}+1$

$y=g(3)=1$

<u>Then, the minimum point of this function is (3,1) and it corresponds to (A)</u>

46)

Let's use the same method here.

$g(x)=f(x+2)$

$g(x)=((x+2)-2)^{2}+1$

$g(x)=(x)^{2}+1$

Let's find the first derivative and equal to zero to find x and y minimum value.

$g'(x)=2x$

$0=2x$

$x=0$

Evaluatinf g(x) at this value of x we have:

$g(0)=(x)^{2}+1$

$g(0)=1$

<u>Then, the minimum point of this function is (0,1) and it corresponds to (C)</u>

47)

Let's use the same method here.

$g(x)=f(x)+2$

$g(x)=(x-2)^{2}+1+2$

$g(x)=(x-2)^{2}+3$

Let's find the first derivative and equal to zero to find x and y minimum value.

$g'(x)=2(x-2)$

$0=2(x-2)$

$x=2$

Evaluatinf g(x) at this value of x we have:

$g(2)=(2-2)^{2}+3$

$g(2)=3$

<u>Then, the minimum point of this function is (2,3) and it corresponds to (B)</u>

48)

Let's use the same method here.

$g(x)=f(x)-3$

$g(x)=(x-2)^{2}+1-3$

$g(x)=(x-2)^{2}-2$

Let's find the first derivative and equal to zero to find x and y minimum value.

$g'(x)=2(x-2)$

$0=2(x-2)$

$x=2$

Evaluatinf g(x) at this value of x we have:

$g(2)=(2-2)^{2}-2$

$g(2)=-2$

<u>Then, the minimum point of this function is (2,-2) and it corresponds to (D)</u>

<u />

I hope it helps you!

<u />

8 0

3 years ago

CHECK MY WORK PLEASE

Likurg_2 [28]

Answer:

Letter D) $C(w)=75w+100$

Step-by-step explanation:

you have to pay $100 for the enrollment fee and w goes with 75 because you have to pay $75 per week.

Hope this helps

4 0

3 years ago

Geometry help greatly needed. please help if possible.

elixir [45]

Answer:

$\huge\boxed{\sf x = 90\°}$

Step-by-step explanation:

If AB is diameter, the angle opposite to it, when a triangle is inscribed in that semi circle, will be 90 degrees.

<u>Given that:</u>

AB is the diameter.

According to what is given, we come to know that <ACB = x = 90°.

$\rule[225]{225}{2}$

Hope this helped!

<h3>~AH1807</h3>

3 0

3 years ago