2 years ago

Find the value of this expression if x = 7 and y= -2 xy^2/9

Mathematics

2 answers:

jeka942 years ago

5 0

7(−2)^2 /9

= 28 /9

tresset_1 [31]2 years ago

4 0

the answer above this is wrong if you’re using Plato

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Find the ordered triple of these equations. x + 2y + 2z = 02x + y + z = 3x - 3y - z = 1

klasskru [66]

{x+2y+2z=0
{2x+y+z=3
{x-3y-z=1

{x+2y+2z=0
-
{4x+2y+2z=6
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{-3y-z=-1
+
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Final triple is
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3 years ago

Twice a number is less than 15 (turn into inequality)

velikii [3]

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3 years ago

Diagram of x+3 and of 2x when x is 2

Naya [18.7K]

Answer:

5 and 4

Step-by-step explanation:

So if, x equals 2 then all you do is turn the x into a 2.

So you rewrite the equation into,

2 + 3 and 2 x 2,

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Hope this helps!

7 0

3 years ago

Evaluate 11 % of 953.23 m Give your answer rounded to 2 DP.

Akimi4 [234]

$\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{11\% of 953.23}}{\left( \cfrac{11}{100} \right)953.23}\implies 104.86$