3 years ago

Is 8:12 equivalent to 10:15

Mathematics

2 answers:

kirill115 [55]3 years ago

8 0

No it’s not because they don’t go into the same multiples

zzz [600]3 years ago

5 0

No they don’t go go into any of the other multiples

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Choose all the expressions with accurately written descriptions.

valentina_108 [34]

There are two expressions which do not match with the written descriptions to ist right.

Those are:

1) (4x - 3)^2 - 1: see that the written description does not square the difference of 4x and 3

2) 3(5x^2 + 14x + 7): see that the written description tells that 5 is added to the square ox x, which is not what the expression shows.

The other 4 expressions match with the written descriptions.

So, you can choose those other 4 expressions.

4 0

4 years ago

a jar contains 6 jellybeans, 4 green jellybeans, and 4 blue jelly beans. if we choose a jellybean, then another without putting

posledela

Probability first one is blue is 4/6+4+4=4/14
the second one is also blue is 4-1/6+4+4-1=3/13

The probability of getting blue both time is 4/14*3/13=12/182=0.0659=6.59%

Answer:
0.0659 or 6.59%

8 0

3 years ago

A lighthouse is 90 feet above sea level. The angle of depression from the top of the lighthouse to the center of the rock is 35

Marysya12 [62]

Notice the picture below

so.... the angle of depression, is above in dashed lines.... however, the angle of depression, is identical to the angle of elevation from the water, since, both angles are "alternate interior" angles

now, using the 45-45-90 rule, then we know the swimmer is 90 feet from the lighthouse, then just use the tangent ratio to get "x"

4 0

3 years ago

I need help with this one

Nimfa-mama [501]

One that can’t be solved so D

7 0

3 years ago

1.0.2217.9-(4.1 + 1.8)] -0.22+ [7.9 - 0.224<br>

snow_lady [41]

Answer:

hhhhhhhhhhhhhh

Step-by-step explanation:

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

4 0

2 years ago