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aliina [53]
3 years ago
14

Which expression is equivalent to 1/3b - 7?

Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
4 0

The answer Is 1/3(b-21)

olga55 [171]3 years ago
3 0

Answer:

\dfrac{1}{3}(b-21)

Step-by-step explanation:

We need to find an equivalent expression for \dfrac{1}{3}b-7

The denominator of first fraction is 3 and that of other is 1.

\dfrac{1}{3}b-7\\\\=\dfrac{b-21}{3}

or

=\dfrac{1}{3}(b-21)

Hence, the equivalent expression is \dfrac{1}{3}(b-21).

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A spinner has three sections. This table shows the results of spinning the arrow on the spinner 80 times.
UNO [17]

The experimental probability of the arrow stopping on Section 2 will be \rm \frac{3}{8}. is the ratio of the favorable event to the total number of events.

<h3>What is probability?</h3>

Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1.

No of arrows given in the different section ;

Section 1=18

Section 2=30

Section 3=32

The probability that the arrow stopping on Section 2 is found as;

\rm P = \frac{Favourable \ outcomes }{Total \ outcomes }  \\\\\ P= \frac{30}{18+30+32} \\\\ P=\frac{30}{80}\\\\ P= \frac{3}{8}

Hence, the experimental probability of the arrow stopping on Section 2 will be \rm \frac{3}{8}.

More about the probability link is given below.

brainly.com/question/795909

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A^2-3a+14 is the answer :)
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2 years ago
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B. is the answer because he can just refill the 1 gallon jug to eventually measure out 3 gallons!
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3 years ago
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I need some help with this, please explain well. It's Trigonometry with right triangles, please let me know if you need a better
andreyandreev [35.5K]

Answer:

x = 12

Step-by-step explanation:

First you figure out which function your going to use. I notice that from the angle we have 5 which is the opposite side and 23 which is the adjacent side. This means we have to use tangent.

Then set up your equation: tan(x)=5/23. This is because the opposite side is 5 and the adjacent is 23 and it must be set up in that order.

Next get x alone by making the equation: x=tan^-1(5/23).

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