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Sergio039 [100]
3 years ago
8

URGENT, PLEASE HELP! (3/5) -50 POINTS- !please no wrong answers for the points.! A)

%5Cfrac%7B9%7D%7B2%7D%20x%20%2B%20%5Cfrac%7B1%7D%7B2%7D" id="TexFormula1" title="y = \frac{9}{2} x + \frac{1}{2}" alt="y = \frac{9}{2} x + \frac{1}{2}" align="absmiddle" class="latex-formula"> B) y = - \frac{1}{2} x + \frac{7}{2} C) y = -4x + 9 D) y = 4x + 15

Mathematics
2 answers:
shtirl [24]3 years ago
5 0

Answer:

B y = -1/2x + 7/2

Step-by-step explanation:

We know that it has a negative slope since the points go from the top left to the bottom right

We can eliminate A and D

The y intercept is where it crosses the y axis

It should cross somewhere between 2 and 4

C  has a y intercept of 9 which is too big

Lets verify with a point

x = -4

y = -4(-4)+9 = 16+9 = 25  (-4,25)  not even close to being near the points on the graph

checking B

y = -1/2 (-4) +7/2

  = 2 + 7/2 = 11/2 = 5.5  it seems  reasonable

german3 years ago
5 0

Answer:

\Large \boxed{y=-\frac{1}{2} x+\frac{7}{2} }

Step-by-step explanation:

Using a graph,

we can see that the line y = -1/2x + 7/2 best fits for the data.

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What is the value of x?<br> Enter your answer in the box.<br> mm
EastWind [94]

Answer:

1938

Step-by-step explanation:

5 0
3 years ago
One member of the debate team is going to be chosen president. each member is equally likely to be chosen. the probability that
inessss [21]
Let
x-------> <span>the probability that a boy is chosen
B------> </span>number of boys in the debate team
G------> number of girls in the debate team<span>

we know that
B+G=20-----> G=20-B-----> equation 1
</span>probability that a boy is chosen=number of boys in the debate team/total of people
so
x=B/20-------> equation 2

t<span>he probability that a girl is chosen is 2/3 the probability that a boy is chosen
</span>probability that a girl is chosen=(2/3)*x
probability that a girl is chosen=G/20
(2/3)*x=G/20-----> equation 3
substitute equation 1 in equation 3
(2/3)*x=[20-B]/20----> equation 4

resolve the equations system
x=B/20
(2/3)*x=[20-B]/20

using a graph tool
see the attached figure
the solution is
x=0.6
B=12
G=20-12-----> G=8

number of boys in the debate team is 12
number of girls in the debate team is 8
the probability that a boy is chosen is 0.6 ----> 60%
the probability that a girl is chosen is 0.6*(2/3)----> 0.4---> 40%

the answer is
number of girls in the debate team is 8

7 0
3 years ago
A baker took 9 hours to bake 6 cakes how long does it take him to bake 1 cake?
AlexFokin [52]

Answer:

1.5 hours

Step-by-step explanation:

5 0
3 years ago
Which function is described by values in the table?
Sveta_85 [38]

One way to approach this problem is to go ahead and find the actual equation in slope-intercept form.


The slope of the line thru (3,6) and (5,4) is m = (6-4) / (3-5), or -2/2, or -1.

Subbing the known values of m, x and y, we get:

4 = -(5) + b. Then b = 9.

The correct equation (representing the data values in the table) is y = -x + 9.


7 0
3 years ago
Graph y = -2x + 5<br><br>Thank you :) I need this as soon as possible
dangina [55]

Answer:

Put one green dot on (0, 5) then the second green dot on (1, 3) so the line is going downward.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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