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Sveta_85 [38]
3 years ago
13

What is the value of x?​

Mathematics
1 answer:
vladimir1956 [14]3 years ago
3 0

Answer:

Step-by-step explanation:

x + 112 + 133+128+100+120= 720

x + 593 = 720

x = 127

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The slope between the points (-1,-5) and (r, -9) is 2. What is the value of r?
Gnom [1K]

Answer:

r = 2

Step-by-step explanation:

slope = (y2 - y1)/(x2 - x1)

(-1, -5)

(r, -9)

-5 - (-9) / -1 - r = 2

4 / -1 - r = 2

r = -2

-1 - (-3) = 2

4 / 2 = 2

Please let me know if I've gotten anything wrong!

4 0
2 years ago
What the step answer for this question
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Answer:

hey guys

Step-by-step explanation:

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6 0
3 years ago
You are at a European beach with 60 other visitors. 36 of them speak English. If you randomly meet two people on the beach, what
Kaylis [27]

Answer:

Assuming I'm one of the 36 English speakers and the other 24 speak Spanish for illustration purposes.  The problem can be modeled as 59 marbles with 35 E and 24 S marbles as N = 59 possible outcomes = n(E) + n(S) = 35 + 24.

So I reach into the pile of marbles (on the beach) and the probability that it's p(E) = n(E)/N = 35/59 = 0.593220339 when I meet the one person. ANS

I assume I remember that first person; so I remove him from the marbles (by avoiding him on the beach) and now my probability is p(E and E) = n(E)/N * n(E)-1/(N - 1) = 35/59*34/58 = 0.347749854 ANS

Following the same logic p(E and E and E) = 35/59*34/58*33/57 = 0.201328863 ANS

This last one is different from the first three.  This one is p(E >= 1|4 attempts).  We can trace out a probability tree to identify those branches that contain at least one E event.  So:

EEEE p() = 35/59 * 34/58 * 33/57 * 32/56 =  

EEES p() = 35/59 * 34/58 * 33/57 * 24/56 =

EESE p() = 35/59 * 34/58 * 24/57 * 33/56 =

ESEE p() = 35/59 * 24/58 * 34/57 * 33/56 =

SEEE p() = 24/59 * 35/58 * 34/57 * 33/56 =

EESS p() = 35/59 * 34/58 * 24/57 * 23/56 =

ESES p() = 35/59 * 24/58 * 34/57 * 23/56 =

SEES

SESE

SSEE

ESSS  And so on, but...a big BUT...why do all this when

SESS

SSES

SSSE

SSSS

p(E>=1|4) = 1 - p(S and S and S and S) = 1 - 24/59 * 23/58 * 22/57 * 21/56 = 0.976652619   ANS.  In other words we find the probability of not meeting an Englishman and take 1 minus that value to find the probability of meeting at least one.

00

Step-by-step explanation:

3 0
2 years ago
Find the range of {(3.2, –3), (7.6, 5.9), (1.4, –3), (–9.1, 8.3)}.
Inessa05 [86]

range is output or y

(x,y)

the range is the 2nd number

when it repeats, don't list again

range=3,5.9,8.3

3 0
2 years ago
Read 2 more answers
What is this answerSimplify to create an equivalent expression. \qquad{8k-5(-5k+3)}8k−5(−5k+3)
Licemer1 [7]

Answer:

33k - 15

Step-by-step explanation:

Given expression,

\qquad{8k-5(-5k+3)}

By the distributive property,

=8k-5(-5k) - 5(3)

=8k+25k-15

By combining like terms,

=33k-15

∵ Further simplification is not possible,

Hence, the required simplified form of the given expression is,

33k-15

6 0
2 years ago
Read 2 more answers
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