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Zarrin [17]
3 years ago
5

3. Which rule describes a transformation across the y-axis?

Mathematics
2 answers:
stiv31 [10]3 years ago
6 0

Answer:

Reflection

Step-by-step explanation:

joja [24]3 years ago
3 0

Answer:

(x, y)  ----->  (-x, y).

(Please mark as brainliest)

Step-by-step explanation:

 We are given to write a rule that describes a transformation across the y-axis. We know that if a point is reflected across the y-axis, then the sign before the x co-ordinate changes. That is, if the point (x, y) is reflected (transformed) across the y-axis, then its new co-ordinates will be (-x, y).

Thus, the required transformation rule is given by (x, y)  ----->  (-x, y).

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Which number is larger: -10 -8 -21 -15?
Cloud [144]

Answer:

I think is -8

Step-by-step explanation:

if you do a line, -8 it's close to cero, which is almost a positive number.

7 0
3 years ago
Calculate the loan for $10,000, at an annual percentage rate of 5%, for a term of 5 years. What is the amount of accrued interes
nikdorinn [45]

Answer:

Step-by-step explanation:

<em>I= </em><em>P*r*T</em>

<em>Interest equals 10,000 times 5% times 5 years</em>

<em>$2500  is the total interest.</em>

4 0
3 years ago
Suppose the sediment density (g/cm) of a randomly selected specimen from a certain region is normally distributed with mean 2.65
Verizon [17]
A) 0.9803; 0.4803
B) 32

We calculate the z-score for this problem by using the formula:

z=\frac{X-\mu}{\frac{\sigma}{\sqrt{n}}}

Using our formula, we have:

z=\frac{3.00-2.65}{\frac{0.85}{\sqrt{25}}}=2.06

Using a z-table (http://www.z-table.com) we see that the area to the left of, less than, this score is 0.9803.

To find the probability it is between the mean and this, we subtract the probability associated with the mean (0.5) from this:
0.9803 - 0.5 = 0.4803.

To find B, we first find the z-score for this.  Using a z-table (http://www.z-table.com) we see that the closest z-score would be 2.33.  We then set up our equation as

2.33=\frac{3.00-2.65}{\frac{0.85}{\sqrt{n}}}=\frac{0.35}{\frac{0.85}{\sqrt{n}}}&#10;\\&#10;\\2.33=0.35\div \frac{0.85}{\sqrt{n}}=0.35\times \frac{\sqrt{n}}{0.85}

Multiplying both sides by 0.85 we have
2.33(0.85) = 0.35√n
1.9805 = 0.35√n

Divide both sides by 0.35:
1.9805/0.35 = √n

Square both sides:
(1.9805/0.35)² = n
32 ≈ n
8 0
3 years ago
Write an expression that, when simplified, is equivalent to 15x + 7
Alona [7]
Sdadadasdasdasdasdasd9979797979759
4 0
3 years ago
What is the answer to 2 1/9 - 7/6
ryzh [129]

Answer:

17/18

Step-by-step explanation:

2 1/9=19/9

19/9-7/6

17/18

6 0
3 years ago
Read 2 more answers
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