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Nimfa-mama [501]
3 years ago
13

A light flashes every 8 seconds. How many times would it flash in 3 minutes?

Mathematics
1 answer:
Vaselesa [24]3 years ago
5 0
21 times in one minute it’s 7 times multiply 7x3 n that’s ur answer
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Find the rate of change between (-3,6) (0,-3)
marin [14]
<h3>The rate of change between (-3,6) (0,-3) is -3</h3>

<em><u>Solution:</u></em>

Given that,

We have to find the rate of change between (-3,6) (0,-3)

<em><u>The rate of change is given as:</u></em>

Rate\ of\ change = \frac{y_2-y_1}{x_2-x_1}

From given,

(x_1, y_1) = (-3, 6)\\\\(x_2, y_2) = (0, -3)

<em><u>Substituting the values we get,</u></em>

Rate\ of\ change = \frac{-3-6}{0+3}\\\\Rate\ of\ change = \frac{-9}{3}\\\\Rate\ of\ change = -3

Thus rate of change is -3

3 0
2 years ago
An iphone costs $1000 and is on sale for 20% off
vfiekz [6]

Answer:

200

Step-by-step explanation:

20 X 1000= 20000 divided by 100

6 0
3 years ago
Read 2 more answers
Calculating Rate of change
ivolga24 [154]

Answer/Step-by-step explanation:

We are given the following coordinates of two points on the line of the graph shown in the question as: A(2, 1) and B(4, 2)

Vertical change from point A = y_2 - y_1 = 2 - 1 = 1

Horizontal change from point A = x_2 - x_1 = 4 - 2 = 2

Rate of change = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1}{2} = 0.5

3 0
3 years ago
For what value of y must QRST be a parallelogram?<br> A: 1<br> B: 2<br> C: 3<br> D: 0.5
Reika [66]

Answer:

A

Step-by-step explanation:

Diagonals of a parallelogram bisect each other.

3x = 3

x = 1

y = x

y = 1

8 0
2 years ago
Read 2 more answers
A bag contains blue and yellow marbles. Two marbles are drawn without replacement. The probability of selecting a blue marble an
igomit [66]
Let b = blue marbles
y = yellow marbles
 Sum = b+y
 The <span>chance of a blue marble being drawn first is:
b / (b+y) = 0.55 
</span>The <span>chance of a blue marble being drawn first then a yellow next is:
</span>b / (b+y) * <span>y / (b+y-1) = 0.37</span>
This can be solve easily by using a theorem of Bayes 
0.37/0.55 = .67 or 67%
4 0
3 years ago
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