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olga nikolaevna [1]
3 years ago
13

-3/2t=-9 please help. its for a test

Mathematics
2 answers:
11111nata11111 [884]3 years ago
3 0

-\frac{3}{2}t=-9\\\\t=-9:(-\frac{3}{2})\\\\t=-9\cdot(-\frac{2}{3})\\\\t=\frac{18}{3}\rightarrow\boxed{t=6}

Ket [755]3 years ago
3 0

Answer:

The answer is t = 6

Step-by-step explanation:

I. -3/2t = 9

t = \frac{-9}{\frac{-3}{2} }

t = -9 * -2/3

t = 6

Hope that help :D

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A number written in proper scientific notation, a x 10", a is greater than 1 and less than 10. True or false
Margaret [11]
True? Sorry if I am wrong
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2 years ago
An urn contains 12 balls, of which 4 are white.
wel

Answer:

a) \frac{1}{3}

b) \frac{4}{12}\,,\,\frac{4}{11}\,,\,\frac{4}{10}\,,...

Step-by-step explanation:

Number of balls in the urn = 12

Number of white balls in the urn = 4

So, number of balls which are not white = 12 - 4 = 8

We know that probability = No. of outcomes/Total number of outcomes

Let A_i\,,\,B_i\,,\,C_i denotes the event of getting white ball by A, B and C

a) each ball is replaced after being drawn.

Probability = Number of white balls/Total number of balls

Solution: P(A_i)=P(B_i)=P(C_i)=\frac{4}{12}=\frac{1}{3}

b)the balls that are withdrawn are not replaced.

Solution:

If A wins: P(A_1)=\frac{4}{12}=\frac{1}{3}

If A lost and B wins: P\left ( B_1|A_1^{c} \right )=\frac{4}{11}

If A and B lost and C wins: P\left ( C_1|A_1^{c}\,B_1^{c} \right )=\frac{4}{10}

and so on....

4 0
3 years ago
In parallelogram ABCD, AB=18. Identify AD. PLEASE HELP ASAP!!
kakasveta [241]
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8 0
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Find the outlier of the data set?<br> 40, 62, 47, 68, 12, 78, 49, 65, 49, 52, 63
ss7ja [257]
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5 0
3 years ago
Read 2 more answers
Find COS
ehidna [41]

\frac{9}{41}

Step-by-step explanation:

The ratio cosine tell us that

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In other words,

\cos(x)  =  \frac{adj}{hyp}

The side adjacent to angle a is 9. The hypotenuse is 41.

So

\cos(a)  =  \frac{9}{41}

6 0
3 years ago
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