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serg [7]
3 years ago
8

20 POINTS IF ANSWERED CORRECTLY AND BRAINLIEST PLEASE HELP ME (07.06 LC)

Mathematics
2 answers:
Stels [109]3 years ago
7 0
It has 1 solution and it is 1.6. to find this answer take 2.25 and subtract it from 3.5 you get 1.25z and -4.25+6.25 is 2. not you have 1.25z=2. divide 2 by 1.25 which is 1.6 and you get your z value. hope I helped! hope you understand this. please mark me as brainliest if you appreciate my answer to help me rank up!
chubhunter [2.5K]3 years ago
6 0
3.5z=2.25z-4.25+6.25
1.25z=2
z=1.6. As a result, this equation have one solution. Hope it help!
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How many permutations of a 7-digit phone number exist if any number 0-9 may be used but repetition is not allowed?
Blizzard [7]

Answer:

10!/3!

Step-by-step explanation:

5 0
2 years ago
Help ASAP!!<br>Using the graphed function above, find the following
Alenkinab [10]

Answer:

Maximum: 1, Minimum: -3, Midline y = -1, Amplitude = 4, Period = \pi, Frequency \displaystyle =\frac{1}{\pi},  equation : f(x)=-4cos(2x)+1

Step-by-step explanation:

<u>Sinusoid Functions</u>

It refers to the oscillating functions like the sine or cosine which range from a minimum and maximum value periodically.

The graph shown can give us all the information we need to answer these questions:

Maximum: 1

Minimum: -3

The midline goes through the center value (mean) of the max and min values, i.e.

Equation of the midline:

\displaystyle y=\frac{1-3}{2}=-1

Amplitude is the difference between the maximum and minimum values

A=1-(-3)=4

The period is the time it takes to complete a cycle. We can see the minimum value is first reached at x=0 and next at x=\pi

Thus the period is

T=\pi

The frequency is the reciprocal of the period:

\displaystyle f=\frac{1}{T}=\frac{1}{\pi}

The angular frequency is

\displaystyle w=2\pi f=\frac{2\pi }{\pi}=2

The equation of the function is a negative cosine (since it starts at the minimum) or a shifted sine or cosine. We'll choose the negative cosine, knowing all the parameters:

f(x)=-4cos(2x)+1

5 0
3 years ago
Line q has a slope of 5/3. Line r is parallel to line q. What is the slope if line r?​
seropon [69]

Answer:

The slope remains a constant m=\frac{5}{3} as it is parallel.

Explanation:

1. Line Q is defined as a slope of \frac{5}{3}; i.e. y=\frac{5}{3}

2. Line R is defined to be parallel of Line Q.

3. Line Q is linear and has no domain restrictions.

The definition of being parallel requires the same slope.

5 0
2 years ago
At a currency exchange, 11 U.S. dollars can be exchanged for 10 Euros. How many Euros will you receive for 1 U.S. dollar?
boyakko [2]
You are given
.. 11 dollars = 10 euros

Divide this equation by 11 to find the euro value of 1 dollar
.. 1 dollar = 10/11 euros

About 0.91 euros


___
The decimal equivalent of 10/11 is the repeating decimal fraction 0.909090...
4 0
3 years ago
If h(x) = 6 – x, what is the value of (h circle h) (10)?<br> –4<br> –2<br> 10<br> 16
Ganezh [65]

Answer:

10

Step-by-step explanation:

Here, we want to find the value of ;

h circle h(10)

This mean we are to put h in h, the find the function of 10

we have this as;

6-(6-x)

= 6-6 + x = x

Now, replace the x by 10; so we have h circle h(10)

5 0
3 years ago
Read 2 more answers
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