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Lynna [10]
2 years ago
5

PLEASE HELP MEE please33​

Mathematics
1 answer:
Sever21 [200]2 years ago
3 0

Answer:

x=3, y=-1

Step-by-step explanation:

3x+y=8, 2x-2y=8

Double the first equation, then add the second

  6x+2y=16

+ 2x-2y=8

The y's cancel each other out.

8x=24

x=3

Solve for y

6-2y=8

2y=-2

y=-1

Double check:

6(3)+2(-1)=16

18-2=16

Yay!

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which of the following best describes the bases of a cylinder? A. Congruent B. Polygons C. Parallel D. Discs (Check All That App
mrs_skeptik [129]

Answer:

A. Congruent and D. Discs

Step-by-step explanation:

You won't see a cylinder that doesn't have congruent bases

Look at the shape of the bases and look at a disc compare their shape

4 0
3 years ago
I'm stuck on here, please, someone help me.
Sophie [7]

Answer:

Answer B

Step-by-step explanation:

therw is one full one and one with five

6 0
3 years ago
1.) 5.7 is a rational number.
Sav [38]
1)  Answer is A (True). 5.7 can be written as fraction in which both numbers are whole finite numbers.

2) Answer is True. Explanation is same as for the previous question.

3) √24 is between 4 and 5. √16=4 and √25 is 5, therefore answer is D)

4) Answer is √136.  11²=121 and 12²=144 and the question doesn't include equal scenario which would look like "more or equal than 11 but less or equal than 12".

6 0
3 years ago
Read 2 more answers
Could someone help please
pogonyaev

Answer:

3.5 m/s

Step-by-step explanation

Remove brackets

d = t^2 + 0.2t + 3.3t + .66              

Combine

d = t^2 + 3.5t + .66

The initial velocity  is 3.5

3 0
2 years ago
The point (1,-1) is on the terminal side of angle theta in standard position what are the values of sine cuisine and tangent of
pickupchik [31]
\bf \textit{terminal point }\implies 
\begin{array}{lclcll}
(&1&,&-1)\\
&\uparrow &&\uparrow \\
&x&&y
\end{array}
\\\\\\
sin(\theta)=\cfrac{y}{r}
\qquad 
% cosine
cos(\theta)=\cfrac{x}{r}
\qquad 
% tangent
tan(\theta)=\cfrac{y}{x}\\\\
-----------------------------\\\\
\textit{so, what's the radius "r"?}\implies r^2=x^2+y^2\implies r=\sqrt{x^2+y^2}
3 0
3 years ago
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