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3 years ago

10

PLEASE HELP MEeEeEe 10POINTS!

1 answer:

Fiesta28 [93]3 years ago

6 0

Answer:

Step-by-step explanation:

-4/10+(-7/10)=-1 1/10

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How can i determine whether or not a polygon has symmetry?

mezya [45]

Answer with Explanation:

If a polygon has symmetry, then it has reflective portion over the line of symmetry.

Note that a rectangle doesn't have the diagonal lines of symmetry since its portion doesn't overlap another.

The simplest symmetry is Reflection Symmetry (sometimes called Line Symmetry or Mirror Symmetry). It is easy to see, because one half is the reflection of the other half.

I hope it will help you.

4 0

3 years ago

Read 2 more answers

Pls help me, I don't know how to do it?:(

FrozenT [24]

Answer and Step-by-step explanation:

Alot of these can be solved with the table up above the problems.

<h2>A, B, and C.</h2><h2></h2>

According to the table, every time a value has an exponent of 0, it would equal to 1. Since all A B and C values follow the 0 exponent, their value is 1.

<h2>D.</h2><h2 />

According to the table, when we have a negative exponent, the number gets turned into a fraction of $\frac{1}{x^x}$

Since our value is 9^-2, do as followed :

$\frac{1}{9^2}$

Solve what is 9^2 :

$[\frac{1}{81} ]$

<h2 /><h2>E.</h2><h2 />

$\frac{1}{x^{-5} }$

This question is different, since we have to go backwards, we have to switch the negative exponent to a positive exponent and rid the fraction.

$x^5$

<h2>F.</h2><h2 />

$5a^3b^{-2}$

Since we have one negative exponent, follow the fraction rule but instead of having one as the numerator, have 5a^3.

$\frac{5a^3}{b^{2}}$

<h2>Fill in the table :</h2><h2 />

$-3^4 = -3*-3*-3*-3=-81$

Since -3 is in parenthesis, we can rid the negative along with the parenthesis :

$(-3)^4=3^4=3*3*3=81$

Follow the negative exponent rule :

$(-3)^{-4}=\frac{1}{(-3)^4} =\frac{1}{3^4} =\frac{1}{3*3*3*3}= \frac{1}{81}$

Follow the negative exponent rule yet again :

$-3^{-4}=-\frac{1}{3^4} =-\frac{1}{3*3*3*3} =-\frac{1}{81}$

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3 years ago

Yesterday 116 vehicles went through Express Car Wash. Of these vehicles, 74 were minivans. Express the ratio of vehicles other t

riadik2000 [5.3K]

E. 74/116=0.637 hope this helps

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3 years ago

Does the point (2,6) satisfy the equation y=5x

trapecia [35]

Answer:

No

Step-by-step explanation:

If you were to plug in x=2 into the equation, you would get 10, not 6.

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3 years ago

X ⋅ y ⋅ z = y ⋅ x ⋅ z property

Ainat [17]

This describes the commutative property of multiplication which says that $a\times b=b\times a$ .

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