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Marta_Voda [28]
2 years ago
5

Please help me!!!! i’m so bad a mathhhh

Mathematics
2 answers:
natima [27]2 years ago
8 0

Answer:

22x^2+21x+10

brainliest?

Step-by-step explanation:

Scorpion4ik [409]2 years ago
7 0

Answer:

The 4the bubble

Step-by-step explanation:

It is pretty much combining like terms. 22x² is alone since there is no other variable that has an x², so it will be left alone. However, there is 14x and -7x, they both have an x, so that makes them like terms. Combine those and you get 14x minus 7x which is 7x. The number 10 has no other like term to combine with so it can be left alone as well, so just put them all together in the end (simplify). Which would be 22x² + 7x + 10

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The scale factor on a scale drawing of machine part is 15 1 /8. If the part is 3 7/8 inches long as the drawing, how long is the
Marta_Voda [28]

Answer:

Option D) 58 39/64 inches​

Step-by-step explanation:

we know that

The scale drawing is

15\frac{1}{8}

convert to an improper fraction

15\frac{1}{8}=\frac{15*8+1}{8}=\frac{121}{8}

That means

121 in in the actual, represent 8 in on a scale drawing

To find how long is the actual part for 3 7/8 inches long as the drawing

Apply proportion

First convert to an improper fraction

3\frac{7}{8}=\frac{3*8+7}{8}=\frac{31}{8}

\frac{121}{8}\frac{actual}{drawing} =\frac{x}{(31/8)}\frac{actual}{drawing}\\ \\x=121(31/8)/8\\ \\x=\frac{3,751}{64}\ in  

convert to mixed number

\frac{3,751}{64}\ in=\frac{3,712}{64} +\frac{39}{64} =58\frac{39}{64}\ in

7 0
3 years ago
Tell how you rename fractions greater than 1 as mixed numbers as fractions greater than 1.
alex41 [277]
For example...
 if you have a mixed fraction 1 1/2, and change it to fraction greater than one, it would be  3/2  (which is 1 or 2/2 + 1/2)
8 0
3 years ago
What metric unit is best used for the length of a car?
tangare [24]
Meter is the best metric measurement.
5 0
3 years ago
The following pentagon, ABCDE is rotated about the origin 90 counterclockwise. Select the new coordinates of C and E after the
katrin2010 [14]

Answer:

its 10

Step-by-step explanation:

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8 0
2 years ago
Please help i don't even where to start<br><br>solve for x​
aliina [53]

The radius is 10, so the diameter is 20. This means the parts of the diameter (the chord through the center P) to the left and right of the vertical chord have lengths 16 and 4, respectively.

Because the horizontal chord is a diameter, the vertical chord is cut in half, so its parts above and below the diameter both have length <em>x</em>.

Now, by the intersecting chord theorem,

16×4 = <em>x</em> × <em>x</em>

or

<em>x</em> ² = 64

so that

<em>x</em> = 8

6 0
3 years ago
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