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2 years ago

Matt had to write 3 4/12 as an improper fraction how would to tell Matt the easiest way to do so?

1 answer:

7 0

The easiest way that matt could change it to an improper fraction is by telling him to multiply 3 and 12 together,36 and and add the 4, 40 and put that answer on numerator ,40/12

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Evaluate ab for a = -2 3/4 and b= - 4/6

nataly862011 [7]

Answer:

1 5/6

Step-by-step explanation:

ab = (-2 3/4) * (-4/6)

= ( -11/4) * ( -4/6)

= (11 * 4) / (4 * 6 )

= 11/6

= 1 5/6

7 0

3 years ago

Which polygon is a concave octagon?

Bezzdna [24]

The polygon in option 3 is not octagon at all, it is heptagon (or 7-sided polygon).

A convex octagon has no angles pointing inwards. More precisely, no internal angles can be more than 180°.

When some internal angle is greater than 180°, it is concave.

In option 2 you can see that one angle is pointing inward, then this octagon is concave.

Answer: correct choice is B.

8 0

2 years ago

Read 2 more answers

What is the answer and how do you solve <br><br><br> 21x^3/3x^−1

Sunny_sXe [5.5K]

Answer:

as written: 7x^2

perhaps intended: 7x^4

Step-by-step explanation:

As written, the Order of Operations specifies that the only denominator factor is 3, so the expression is interpreted as ...

$\dfrac{21x^3}{3}x^{-1}=\dfrac{21}{3}x^{3-1}=7x^2$

___

Sometimes grouping of denominator factors is intended, but parentheses are not written as they should be. If the intention is ...

21x^3/(3x^-1)

then the simplification is ...

$\dfrac{21x^3}{3x^{-1}}=\dfrac{21}{3}x^{3-(-1)}=7x^4$

_____

The applicable rules of exponents are ...

(a^b)(a^c) = a^(b+c)

a^b/a^c = a^(b-c)

6 0

3 years ago

ABCDEFGHIJ is a regular decagon.

Vilka [71]

Answer:

hope it helps u..

Step-by-step explanation:

4 0

3 years ago

Find the missing side of the right triangle

vlada-n [284]

Answer:

$a {}^{2} + b {}^{2} = c {}^{2} \\ b {}^{2} = \sqrt{c {}^{2} - a {}^{2} } \\ b = \sqrt{14 {}^{2} - 3 {}^{2} } \\ b = \sqrt{196 - 9} \\ b = \sqrt{187} \\ b = 13.7$

I hope this help

6 0

2 years ago