3 years ago

Which of these equations are true when the value of y is 27?

Mathematics

1 answer:

Troyanec [42]3 years ago

7 0

Answer:

I. -9 + y = 18

Step-by-step explanation:

Double-check to see if I was correct

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6y-5=11 what the answer I’m having a hard time finding it

QveST [7]

6y-5=11

Move -5 to the other side. Sign changes from -5 to +5.

6y-5+5=11+5

6y=11+5

6y=16

Divide by 6 for both sides to get y by itself.

6y/6=16/6

Cross out 6 and 6, divide by 6 and then becomes 1*1*y=y

y=16/6

Reduce 16/6 by dividing by 2

16/2=8

6/2=3

Answer: y=8/3 or y=2 2/3

6 0

3 years ago

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Pls help me with this equation

Zanzabum

Answer:

x = 20 degree

Step-by-step explanation:

Hope this helps u !!

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3 years ago

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Klio2033 [76]

Answer:

3) 10

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Step-by-step explanation:

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3 years ago

If a and b are rational numbers and 5 +2 root 3/7+4 root3=a-b root 3;then a and b=

Usimov [2.4K]

Answer:

$\bold{a=5\,,\quad b=-4\frac27}$

Step-by-step explanation:

$5+\frac{2\sqrt3}7+4\sqrt3=5+\frac27\sqrt3+4\sqrt3=5+4\frac27\sqrt3=5-(-4\frac27)\sqrt3$

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4 years ago

Find the rectangular coordinates of the point. (-5, -180°)

o-na [289]

$\bf \begin{array}{rlclll}
(-5&,&-180^o)\\
\uparrow &&\uparrow \\
r&&\theta 
\end{array}\quad 
\begin{cases}
x=rcos(\theta )\\
\qquad -5\cdot cos(-180^o)\\
\qquad -5\cdot -1\\
\qquad 5\\
----------\\
y=rsin(\theta )\\
\qquad -5\cdot sin(-180^o)\\
\qquad -5\cdot 0\\
\qquad 0
\end{cases}\implies (5,0)$

4 0

3 years ago