2 years ago

Which equation or inequality below is true??

Mathematics

1 answer:

dedylja [7]2 years ago

5 0

If it's got the symbol: "=" in it, then it's an education

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What is 13.984 rounded to the nearest tenth

eimsori [14]

13.984 rounded to the nearest tenth is 14

.984 is closer to 1 than to .9, so we have to round up.

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3 years ago

What is the best estimate of the area of the figure on the grid if each square has side lengths of 1 inch?

Phoenix [80]

Answer:

C) 29 square inches

Step-by-step explanation:

5 x 5 = 25

Triangles = 0.5

25 + 2 = 27

27 + (4 x 0.5)

27 + 2 =29

~~Thanks,

Sanjith U.

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3 years ago

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Elimination method: ax+by=r, -bx+cy=s

Alex17521 [72]

$\left[\begin{array}{ccc}ax+by=r\\\\-bx+cy=s\end{array}\right]$

Isolate x for $ax+by=r$

$x= \frac{r-by}{a} ; a \neq 0$

Subsititute $x= \frac{r-by}{a}$

$-b \frac{r-by}{a} +cy=s$

Isolate r for : $-b \frac{r-by}{a}+cy=s$

$r=- \frac{as-acy-b^2y}{b} ; a \neq 0;b \neq 0$

For x : $\frac{r-by}{a}$

Subsititute r = $- \frac{as-acy-b^2y}{b}$

$x= -\frac{as-acy-b^2y}{b}/a$

$x = \frac{cy-s}{b}$

The solutions to the system of equations are:

$r= -\frac{as-acy-b^2y}{b}$ and $x = \frac{cy-s}{b}$

hope this helps!

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2 years ago

Nadusha1986 [10]

Easy I think it is 14

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3 years ago

Has parallel sides but is not a trapezoid

dybincka [34]

Parallelogram 
If you need more help I would be glad to help!:D
~"AB84"~

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3 years ago

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