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2 years ago

X - 5 (x-1) = x - (2x - 3)

Mathematics

2 answers:

Rashid [163]2 years ago

7 0

Answer:

x=2/3

Step-by-step explanation:

hope this helps :)

True [87]2 years ago

4 0

Answer:

x= 2/3 = 0.667

Step-by-step explanation:

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The diameter of a sphere is 42 centimeters. find the surface area to the nearest tenth

Mademuasel [1]

A ~ 5541.77cm squared

8 0

3 years ago

2+5 is going to be a long one ne

andrew-mc [135]

Answer: 7

Step-by-step explanation: Imagine having 5 chocolate bars and then adding 2, or you could try counting with your fingers. Another method is writing a number line and going plus 2 from five so you can visualize it more.

3 0

3 years ago

Read 2 more answers

Plz help , due in 5 mins

Grace [21]

Answer:

option a) 30 : 19

Step-by-step explanation:

$Length = 7 \frac{1}{2} = \frac{15}{2}\\\\Width = 4\frac{3}{4} = \frac{19}{4}$

Ratio of length to width:

$\frac{15}{2} : \frac{19}{4}$

$=\frac{\frac{15}{2}}{\frac{19}{4}}\\\\=\frac{15}{2 } \times \frac{4}{19}\\\\=15\times \frac{2}{19}\\\\=\frac{30}{19}\\\\30 : 19$

3 0

2 years ago

in 2018 GRE scores were normally distributed with a mean of 303, and standard deviation of 13. Standford University Graduate sch

eduard

Answer:

The minimum score needed to be considered for admission to Stanfords graduate school is 328.48.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 303, \sigma = 13$

What is the minimum score needed to be considered for admission to Stanfords graduate school?

Top 2.5%.

So X when Z has a pvalue of 1-0.025 = 0.975. So X when Z = 1.96

$Z = \frac{X - \mu}{\sigma}$

$1.96 = \frac{X - 303}{13}$

$X - 303 = 13*1.96$

$X = 328.48$

The minimum score needed to be considered for admission to Stanfords graduate school is 328.48.

3 0

3 years ago

What is the equation, in slope-intercept form, of the line that is perpendicular to the line

Vadim26 [7]

Answer:

y = -x-4

Step-by-step explanation:

In this question, we want to find the equation of a line.

Generally, the equation of a starlight line goes by the firm y = mx + c where m represents the slope and c represents the y-intercept

The first equation given, can be rewritten as ;

y = x -6 + 4

y = x - 2

From here, it is clear that our slope m is equal to 1.

Now if two lines are perpendicular, the product of their slopes equals -1

what i’m saying is m1•m2 = -1

Now since we know both lines are perpendicular, then we have the slope of the second line as -1 in value

Now after getting the slope, we need to write the equation using that point that falls on where the line passes through

Using;

y = mx + c for slope -1 and point (-2,-2)

we have;

-2 = -1(-2) + c

-2 = 2 + c

c = -2-2

c = -4

Thus our final equation is where we are having m to be -1 and c = -4

y = -1(x) -4

y = -x-4

ps : different equations in the note and on the screenshot. I followed what’s in the question!

4 0

3 years ago