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2 years ago

Can you help me solve. My teacher got those answers but I don’t know how.

Mathematics

1 answer:

valina [46]2 years ago

3 0

Answer:

Your teacher is correct.

Step-by-step explanation:

Common knowledge about coordinates:

The first number in a coordinate is the "x coordinate".

The second number is the "Y coordinate".

The X axis is the horizontal line.

The Y axis is the vertical line.

The origin is the middle of the two axis's.

For A, the x coordinate is -4. You go right on the horizontal line because it is a negative number. The y coordinate is 4, so you go up from -4 to 4 because it is a positive number. there, you'll get your coordinate (-4 , 4).

For B, because the x coordinate is 0, you don't move at all, and you stay on the x origin. The y coordinate is 6, so you go up from the origin to 6. There, you'll have (0, 6).

C is pretty self explanatory if you understand the concept.

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3 years ago

How to solve -27/x^15

kompoz [17]

Answer:

$\frac{-27}{x^{15}}=-\frac{27}{x^{15}}$

Step-by-step explanation:

<em>If you just want to simplify -27/x^15, it is not very difficult. Here is the simple way.</em>

<em />

Given the expression

$\frac{-27}{x^{15}}$

solving

$\frac{-27}{x^{15}}$

$\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}$

$=-\frac{27}{x^{15}}$

Therefore,

$\frac{-27}{x^{15}}=-\frac{27}{x^{15}}$

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3 years ago

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

trapecia [35]

Answer:

0.0416

Step-by-step explanation:

Given :

Sample size, n = 300

Sample mean, x = 35.5

Population mean, m = 35

Standard deviation, s = 5

The test statistic :

Zstatistic = (x - m) / s/sqrt(n)

Zstatistic = (35.5 - 35) / 5/sqrt(300)

Zstatistic = 0.5 / 0.2886751

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Using the p value calculator from Zstatistic :

One tailed P value at 95% confidence interval is : 0.0416

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2 years ago

Find the lowest common denominator of p+3/p^2+7 p+10 and p+5/p^2+5 p+6

VMariaS [17]

We first need to factorize (if possible) the denominators:

we can see that $p^2+7p+10=(p+2)(p+5)$ as 2 and 5 are two numbers whose sum is 7 and product is 10.

Similarly, we can see that $p^2+5p+6=(p+3)(p+2)$ as 2 and 3 are two numbers whose sum is 5 and product is 6.

Thus, the expression is:

$\displaystyle{ \frac{p+3}{(p+2)(p+5)} + \frac{p+5}{(p+3)(p+2)}$ .

Now to make the denominators equal, but to also keep them as small as possible, the common denominator must be (p+3)(p+2)(p+5).

Answer: (p+3)(p+2)(p+5).

4 0

3 years ago

Read 2 more answers

What is 30% of 20??Help me please

Nuetrik [128]

Taking 30% percent of something is the same as multiplying by .3

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3 years ago