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Taya2010 [7]
3 years ago
5

HELP ASAP WILL GIVE BRAINLIEST 15 POINTS!

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
8 0
You can create 16 3 1/2-in columns.
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Perform the indicated operations. Express the result in scientific notation. (5.7 × 105) + (4.6 × 106) – (2.9 × 105)
alex41 [277]

Answer:

1.3905 × 10^4

Step-by-step explanation:

First you should multiply all the two numbers  inside the parentheses

5.7 × 105=598.5

4.6 × 106=487.6

2.9 × 105=304.5

Now add the three numbers

598.5+487.5+304.5= 1390.5

scientific notation: Put the decimal after the first digit. To find the exponent count the number of places from the decimal to the end of the number.

the answer in scientific notation: 1.3905 × 10^4

8 0
3 years ago
How many Years are there in 4 centuries?
AfilCa [17]
A century is 100 years. 4 times 100 equals 400. The answer is 400
6 0
3 years ago
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Match the phrase!! Where does each one go to??
lora16 [44]

Answer: uuf, hard

Step-by-step explanation: SORRY, DON'T KNOW

5 0
2 years ago
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HELP ASAP !! easy question and i’ll give brainliest
tia_tia [17]

Answer:

x=38.5

Step-by-step explanation:

\sqrt{23^{2}- 18^{2}}   =\sqrt{205}

cos(x)=\frac{18^{2} +23^{2} -205}{2(18)(23)}

x=38.5(correct to the nearest tenth)

4 0
3 years ago
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How do i graph the lines when the equations aren’t in slope intercept form????
jekas [21]

Slope-Intercept Form: y=mx+b

Standard Form: ax+by=c

Point- Slope: (y-y1)= m(x-x1)

There are multiple answers to your question-

  1. If you are only missing b(the y-intercept) but are given a set of points, plug the points into x and y and solve for b.
  2. If you are only missing the slope(m) but are given a set of points, plug the points into x and y and solve for m.
  3. If you are given the standard form/point-slope form, change the equation to slope intercept form.
  4. If you are given an complete form(there is an x and y; no missing variables), but are not sure what it is, plug in some numbers in x to find y, then graph.
7 0
3 years ago
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