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SVETLANKA909090 [29]
3 years ago
8

63 decreased by twice Vidya's score Use V to represent Vidya's score.

Mathematics
2 answers:
taurus [48]3 years ago
6 0
V = 126 if that's what you're looking for
Nesterboy [21]3 years ago
5 0
If it's an expression, then:
2V - 63
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Which linear equations have an infinite number of solutions? Check all that apply. (x – ) = (x – left-parenthesis x minus StartF
allochka39001 [22]

Answer:

a, (x-3/7)=2/3(3/2x-9/14), and c, 12.3x – 18 = 3(–6 + 4.1x).

Step-by-step explanation:

i just answered that question

4 0
3 years ago
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Can u help me with this
daser333 [38]

Answer:

acc to ques....perimeter of figure= 3a^2+15a+9

let missing dimension be x

= x+10a-2+a^2-7+5a=3a^2+15a+9

x+15a+a^2-9=3a^2+15a+9

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3 years ago
The average time a subscriber spends reading The Wall Street Journal is 49 minutes (The Wall Street Journal Subscriber Study). A
erica [24]

Answer:

P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-\mu}{\sigma})=P(Z>\frac{60-49}{16})=P(z>0.6875)

And we can find the probability with the complement rule and the normal standard distirbution and we got:

P(z>0.6875)=1-P(z

Step-by-step explanation:

Let X the random variable that represent the time spent reading of a population, and for this case we know the distribution for X is given by:

X \sim N(49,16)  

Where \mu=49 and \sigma=16

We are interested on this probability

P(X>60)

And we can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

Using this formula we got:

P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-\mu}{\sigma})=P(Z>\frac{60-49}{16})=P(z>0.6875)

And we can find the probability with the complement rule and the normal standard distirbution and we got:

P(z>0.6875)=1-P(z

5 0
3 years ago
The number of hours you study for an exam affects your grade. What is a reasonable value of the range?
Gwar [14]

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C

Step-by-step explanation:

The range is the grade. Domain is the amount of hours that you study for.

8 0
3 years ago
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The graph shows the solution for which inequalities?
Helen [10]

Answer:

Inequalities are,

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Step-by-step explanation:

Solid yellow line of the graph attached passes through two points (0, -2) and (1, 2).

Let the equation of this line is,

y = mx + b

Slope of the line = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

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Another line is a solid blue line parallel to the x-axis.

Shaded region (blue) above the line will be represented by,

y ≥ 2

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7 0
3 years ago
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