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3 years ago

PLEASE HELP!! I NEED THIS ASAP!!!

Mathematics

1 answer:

weeeeeb [17]3 years ago

4 0

Answer:

y = 1/4 +3

Step-by-step explanation:

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Why do we use scientific notation, and what are the parts of an expression written in scientific notation?

kiruha [24]

Answer:

We use scientific notation as sometimes numbers are so so big, that it becomes inconvenient for us to write the actual number.

Step-by-step explanation:

For example, if you have 9 billion of something, you wouldn't want to write those 9 zeroes all the time.

When writing in scientific notation we count the number of decimal places to when we have one non-zero integer to the right of the decimal place. We then write that number and multiply it by ten to the number of decimal places you counted earlier.

e.g. 4.8 X 10^7

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3 years ago

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Which point is on the graph of the following function rule: y-7-5x

Grace [21]

The answer is A cuz - +- = +

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3 years ago

C is the center of the circle. Find the area of the segment shown in the figure,

Semmy [17]

Answer: A 28.50 sq. u

Step-by-step explanation:

In the given figure , radius of the circle : r= 10 u

Central angle made by Arc ED: $\theta$ = 90° ( right angle )

Now , the area of the segment is given by :-

Area of segment = Area of sector (ECD) - Area of triangle(ECD) (i)

Formula : Area of right triangle = 0.5 x Base x Height

Area of sector = $\dfrac{\theta}{360^{\circ}}\times\pi r^2$

Using above formulas in (i) and substituting corresponding values , we get

Area of segment =

$\dfrac{90^{\circ}}{360^{\circ}}\times\pi (10)^2-0.5\times10\times10\\\\=\frac{1}{4}(3.14)(100)-50\\\\=78.5-50=28.5\ sq.u$

Hence, the correct answer is A 28.50 sq. u

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3 years ago

What is the value of x?<br> Enter your answer in the box.<br> x I will give you a heart and 5 stars

Agata [3.3K]

Answer:

${ \tt{ \frac{56}{44.8} = \frac{35 }{(x + 4)} }} \\ \\ { \tt{56(x + 4) = 35 \times 44.8}} \\ \\ { \tt{56x + 224 = 1568}} \\ \\ { \tt{56x = 1344}} \\ \\ { \tt{x = \frac{1344}{56} }} \\ \\ { \tt{x = 24}}$

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The mixed number 4 4/5 is equivalent to a fraction with a denominator of 5.

Komok [63]

D) 24 bc 5x4=20 20+4= 24 so 24

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4 years ago

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