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padilas [110]
2 years ago
10

Y=−2x+1 x−3y=11 find the solution using elimination.

Mathematics
1 answer:
yawa3891 [41]2 years ago
3 0

Answer:

Step-by-step explanation:

Using first equation in the second gives you

x-3(-2x+1)=11

x+6x-3=11

7x-3=11

7x=14

x=2, making y=-2x+1 become

y=-2(2)+1

y=-4+1

y=-3 so the solution is the point

(2,-3)

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5. A function is given below.<br> f(x) = 3x2 - x + 6<br> What is f(2)?<br> 2
goldenfox [79]

Answer:   10

Step-by-step explanation:

f(x)= 3 (2) - x + 6

f(x)= 6 - 2 + 6

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f(x) = 10

7 0
3 years ago
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The probability that a high school student in in the marching band is 0.47. The probability that a student plays a varsity sport
IrinaK [193]

The probability that a high school student in in the marching band is 0.47

so, P(M)=0.47

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so, P(V)=0.32

the probability that a student is in the marching band and plays a varsity sport is 0.24

so, we get

P(M∩V)=0.24

a student plays a varsity sport if we know she is in the marching band

so,

P(V|M)=(P(V∩M))/(P(M))

now, we can plug values

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P(V|M)=\frac{0.24}{0.47}

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So,

the probability that a student plays a varsity sport if we know she is in the marching band is 0.51063......Answer

8 0
3 years ago
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After moving 5 units up, 3 units right, and 4 units down, the ending position is (9, 6). What was the starting position.
Anika [276]
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6 0
2 years ago
5 3/2 x 3 6/7 you have 10 point to do the answer
pogonyaev

Step-by-step explanation:

Conversion a mixed number 5 3/2

to an improper fraction: 5 3/2 = 5 3/2

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= 10 + 3/2

= 13/2

To find a new numerator:

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b) Add the answer from previous step 10 to the numerator 3. New numerator is 10 + 3 = 13

c) Write a previous answer (new numerator 13) over the denominator 2.

Five and three halfs is thirteen halfs

Conversion a mixed number 3 6/7

to an improper fraction: 3 6/7 = 3 6/7

improper fraction: 3 6/7 = 3 6/7

3 · 7 + 6/7 = 21 + 6/7 =27/7

To find a new numerator:

a) Multiply the whole number 3 by the denominator 7. Whole number 3 equally 3 * 7/7

= 21/7

b) Add the answer from previous step 21 to the numerator 6. New numerator is 21 + 6 = 27

c) Write a previous answer (new numerator 27) over the denominator 7.

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Multiple:

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3 0
2 years ago
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inessss [21]

Answer:

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8 0
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