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rosijanka [135]
3 years ago
12

What is the sum of the series? ​ ∑ i=1 5 4i ​ Enter your answer in the box.

Mathematics
2 answers:
nekit [7.7K]3 years ago
7 0
We have that

the expressions is <span>∑ i=1 to 5 (4i)
for i=1-----------> (4*1)=4
</span>for i=2-----------> (4*2)=8
for i=3-----------> (4*3)=12
for i=4-----------> (4*4)=16
for i=5-----------> (4*5)=20
∑ i=1 to 5 (4i)=[4+8+12+16+20]=60

the answer is 60
mafiozo [28]3 years ago
6 0

Answer:

the answer IS 60

Step-by-step explanation:

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Answer: y=-4x-31

Step-by-step explanation:

To find a ling that is parallel to the given line and passes through the given point, we need to use the given point. We know that the slope MUST stay the same because parallel lines NEVER touch. All we have to do is plug in the point and find the y-intercept.

-7=-4(-6)+b            [multiply]

-7=24+b                 [subtract both sides by 24]

b=-31

Now, we know that y=-4x-31 is the equation.

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On a coordinate plane, point B(–6, 1) is translated to B prime(–3, –2). Indira uses these steps to find a rule to describe the t
nasty-shy [4]

Answer:

Indira should have written the equations Negative 6 + a = negative 3 and 1 + b = negative 2 in Step 2.

Step-by-step explanation:

Point B(-6, 1) to B'(-3, -2)

Steps to achieve B"

-6+a= -3 ⇒ a= -3+6= 3

1+b= -2 ⇒ b= -2-1= -3

-----------------

Step 1 Substitute the original coordinates and the translated coordinates into (x, y) right-arrow (x + a, y + b): B (negative 6, 1) right-arrow B prime (negative 6 + a, 1 + b) = B prime (negative 3, negative 2)

  • Step 2 Write two equations: Negative 6 + a = negative 2. 1 + b = negative 3.
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Step 3 Solve each equation: Negative 6 + a = negative 2. a = negative 2 + 6. a = 4. 1 + b = 3. b = negative 3 minus 1. b = negative 4.

Step 4 Write the translation rule: (x, y) right-arrow (x + 4, y minus 4)

----------------

  • Indira should have written the equations Negative 6 + a = negative 3 and 1 + b = negative 2 in Step 2.

3 0
3 years ago
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Answer:

The measures of center are the same.

There is little variability in the data.

The average temperature is 98.

The data is clustered around the mean.

Step-by-step explanation:

4 0
4 years ago
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