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3 years ago

What is the common difference for this arithmetic sequence? 54, 50, 46, 42, 38, A. 34 B. 4 C. 54 D. -4

Mathematics

2 answers:

Vaselesa [24]3 years ago

8 0

Answer:

-4

Step-by-step explanation:

Take the second term and subtract the first term

50 -54 = -4

We can check by taking the third term and subtracting the second term

46-50 = -4

The common difference is -4

olganol [36]3 years ago

8 0

If we will analyze, we will notice a standard:

From 54 to 50 we subtracted 4 --> (-4);
From 50 to 46 we subtracted 4 --> (-4);

This is repeated until last term of sequence.

Terefore, the correct alternative is letter d).

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Which of the following is the graph of y= - x + 1

Ksivusya [100]

Answer:

See picture below

Step-by-step explanation:

To graph properly, remember that:

The y intercept of the function, is the value of the function when x=0, and tells (in this case y=1 is the intercept). Locate this point in the graph.
The x intercept, which is the value of x when y=0 is x=1. Locate it in the graph.
You now have two points of a straight line: join this two points and you would have done it!

5 0

3 years ago

54 is 120% of what number? Explain please!

Nataly [62]

$\displaystyle \text{54 is 120\% of what number} \\ \text{is will be = } \\ \text{of will be } \cdot \\ \text{what number will be z} \\ ---------- \\ 54=120\% \cdot z \\ \\ 54= \frac{120}{100}\cdot z \\ \\\\ z \cdot \frac{120}{100}=54 \\ \\ \\ z=54 : \frac{120}{100} \\ \\ \\ z=54 \cdot \frac{100}{120} \\ \\ \\ z= \frac{5400}{120} =45$

3 0

4 years ago

Read 2 more answers

Maggie says that if the expression was 12÷3to the second power, you would divide before simplifying 3 to the second power. Is sh

mezya [45]

Answer:

Maggie is incorrect.

Step-by-step explanation:

PEMDAS tells us the order of operations and the steps of solving a mathematical statement. It states that exponents must be performed before multiplication or division.

P - Parentheses

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

Therefore, to solve 12÷3² correctly, 3² needs to be simplified to 9 <em>before</em> dividing.

I hope this helps!

4 0

3 years ago

What is ∑n=16[4(−5)n−1] equal to?

-Dominant- [34]

Answer:

This will be the sum of a geometric series where the first term is 4

The common ratio is -5

And we will have 6 terms.....so....the sum is

first term [ 1 - common ratio^number of terms ] / [ 1 - common ratio ] =

4 [1 - (-5)^6] / [ 1 - -5 ] =

4 [ 1 - 15625 ] / 6 =

(2/3) ( -15624 ) =

-10416

Step-by-step explanation:

4 0

2 years ago

How do i check my answer for y-16-3y=0

BARSIC [14]

Answer:

what ever y equals plug it back into the problem and if get 0=0 then u got

Step-by-step explanation:

7 0

4 years ago