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valina [46]
3 years ago
11

I have a math test tomorrow and it’s for 7th grade it is a really important test I was wondering if u guys have any tips or stuf

f I really need to know for the test
Mathematics
2 answers:
Lyrx [107]3 years ago
8 0

Answer: two step equations one step equations,  you need to know probability, l x w x h aka volume

hope you do good on the test

side note: i don't know all the topics on the top of my head since im in 8th grade math.

Step-by-step explanation:

Alex17521 [72]3 years ago
3 0
Well look at the resources available, you can study or if you have a study guide, use it and try to get a good night rest and wake up on time and try your best and don’t stress out or you can just wing it and not do nothing and just take the test
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Which three lengths could be the lengths of the sides of a triangle? Thanks
Nataly_w [17]

s1+s2>s3  where s1 and s2 are the 2 smaller sides

Choice C is the only 1 that fits

7+13 >18

7 0
3 years ago
When i am solving for the sides of a right triangle when will i use trigonometric functions
AnnZ [28]

Answer:

The ratios of the sides of a right triangle are called trigonometric ratios. We need to use trigonometric functions to find them when we don't have any angle other than 90 degree shown.

Three common trigonometric ratios are the sine (sin), cosine (cos), and tangent (tan). These are defined for acute angle.

However when we have one angle given with the 90 degree we can deduct without trigonometry but we would use all angles to find the hypotenuse or all angles to find the side of a right angle.

Alternatively, we cna do this with one given angle but if we have one, we might as well work out the other one without trigonometry and do a division with Sin = 25 (sin 35) sin 90  / sin 55

is one example when given the base 25ft that would find the hypotenuse or the length of elevation for buildings looking down or zip-wire questions.

Step-by-step explanation:

       A

       |  \

       l     \

4cm|        \ 5cm

       |          \

       |            \

   B | -  -  -  -  \ C      

          3cm

Suppose we wanted to find sin( A) in△ABC    

(The height of the wall in elevation questions would be used above the base shown 3cm at the start) Sin = 3 (sin 35)° sin 90°  / sin 55° to find the height side (4).

Sine is defined as the ratio of the opposite to the hypotenuse

sin(A) =  hypotenuse          ​= AB/BC        = 3/5

             / opposite

                                           

​

​

6 0
3 years ago
Combine the like terms to create an equivalent expression:<br> −3x-6+(-1)
asambeis [7]

Answer:

-3x - 7

Step-by-step explanation:

-3x - 6 - 1 = -3x - 7

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2 years ago
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The area of this circle is 72π m^2 what is the area of a 45° sector of this circle
LekaFEV [45]
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