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maria [59]
2 years ago
5

I need help with this problem! Please show work so i can get credit for my work

Mathematics
1 answer:
ser-zykov [4K]2 years ago
4 0

Answer:

x= -43 or x=57

Step-by-step explanation:

Apply absolute value rule: If |u|=a, a>0 then u=a or u=-a

So applying that to our equation:

|x-7|=50, x-7 can either equal +50 or -50 so we solve for both

x-7= -50 ---> x= -43

or

x-7=50 ---> x=57

I hope this helps!

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Carlos just took a 40 question math test. He scored a 75%. How many questions did he get correct?
sergiy2304 [10]

Answer:

He missed 10 questions and got 30 right

Step-by-step explanation:

So we could do 0.75 times 40 and we would get 30

So he got 30 questions right which isn't too bad

8 0
2 years ago
How can the average rate of change be found using a discrete graph?
nekit [7.7K]
In general, the average rate of change of f (x) on the interval a, b is given by f(b) – f(a) / b – a. The average rate of alteration of a function, f (x) on an interval is well-defined to be the variance of the function values at the endpoints of the interim divided by the difference in the x values at the endpoints of the interval. this is also known as the difference quotient that tells how on average, the y values of a function are changing in connection to variations in the x values. A positive or negative rate of change is applicable which match up to an increase or decrease in the y value among the two data points. It is called zero rate of change when a quantity does not change over time.
5 0
3 years ago
ZX and zy or supplementary angles. zy measures 49 degrees what is the measure of ZX
Svetach [21]

Answer:

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Step-by-step explanation:

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Brainliest? Maybe?

8 0
2 years ago
PLSSSSSSS HELP 100 POINTS [HMTL]Find the measure of side XY.
Dafna1 [17]

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6 0
2 years ago
Read 2 more answers
The hours of daylight, y, in Utica in days x from January 1, 2013 can be modeled by the equation y = 2.89sin(0.0145x-1.40) + 10.
Pie

Answer:

9.3 hours

Step-by-step explanation:

Given

y = 2.89\sin(0.0145x-1.40) + 10.99.

Required

Hours of sunlight on Feb 21, 2013

First, calculate the number of days from Jan 1, 2013 to Feb 21, 2013

days = 52

So:

x = 52

So, we have:

y = 2.89\sin(0.0145x-1.40) + 10.99.

y = 2.89\sin(0.0145*52-1.40) + 10.99.

y = 2.89\sin(0.754-1.40) + 10.99.

y = 2.89\sin(-0.646) + 10.99.

y = 2.89*-0.6020 + 10.99.

y = -1.740 + 10.99.

y = 9.25

<em></em>y = 9.3<em> --- approximated</em>

8 0
2 years ago
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