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3 years ago

Which point lies on the line defined by 2x – y = 7?

1 answer:

4 0

So lets just assume that y = 1 since 2x is most likely an even number.
Then we can say that 2x = 8
8 divided by 2 is 4
so a point on this line could be (4,1)
Hope this helped

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Rewrite the slope intercept equation of the line y = 2x + 5 in standard form. A) 2x - y = -5 B) 2x + y = 5 C) -2x - y = -5 D) 2x

goldenfox [79]

Answer:

(A) $2x-y=-5$

Step-by-step explanation:

Slope intercept form of equation of line is $y = mx+c \ where\ m\ is \ slope$

The standard form of equation is $Ax + By + C = 0$

Now let $m=\frac{A}{B}$ $therefore, m =\frac{2}{1}\ which\ gives\ A = 2and\ B = 1$

substituting the value of A and B in slope intercept form,

$y = \frac{A}{B} x+5\\\y = \frac{2}{1} x+ 5\\By\ simplifying,\\1y = 2x + 5\\on\ rearranging\ the\ above\ equation \\2x-y=-5\\which\ gives\ a\ standard\ form\ of\ equation\ Ax +By +C= 0\ where\ A= 2,\ B= (-1)\ and\ C = 5$

3 0

3 years ago

Please show me how to do this, I need to show work

Marrrta [24]

Answer:

x ≈ 11.68 ( to 2 dec. places )

Step-by-step explanation:

Given

$6^{(x-8)}$ = 730 ( take log of both sides )

log $6^{(x-8)}$ = log730

(x - 8)log6 = log730 ( divide both sides by log6 )

x - 8 = $\frac{log730}{log6}$ ≈ 3.68 ( add 8 to both sides )

x ≈ 11.68 ( to 2 dec. places )

5 0

3 years ago

Read 2 more answers

The owner of a local nightclub has recently surveyed a random sample of n = 300 customers of the club. She would now like to det

quester [9]

Answer:

We cannot determine the appropriate hypotheses to test this study because we are only given the data for the sample size and the population mean. Meanwhile, we need to know the data of the sample mean, the standard deviation and the level of significance before we can state the appropriate hypotheses for this test.

Step-by-step explanation:

Given that:

sample size n = 300

population mean μ = 35

The null hypothesis and the alternative hypothesis can be computed as follows:

Null hypothesis

$H_o: \leq 35$

Alternative hypothesis

$H_1 > 35$

The degree of freedom df = n -1

df = 300 - 1

df = 299

8 0

4 years ago

Find the area of an equilateral triangle of side 12 cm

RideAnS [48]

Step-by-step explanation:

root 3 by 4a²

root3/4*(12)²

36root3

5 0

3 years ago

Read 2 more answers

Students are taking a Math test that has 28 questions and is worth 100 points , Some of the questions are worth 3 points and the

Y_Kistochka [10]

Answer:

There are 12, 3-point problems & 16, 4-point problems

Step-by-step explanation:

3-point problem = x

4-point problem = y

Total points = 100

Total problems = 28

According to given statement; x+y=28

4 0

3 years ago