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prisoha [69]
3 years ago
11

Simplify y 2 + 4y - 16y + 3y 2.

Mathematics
2 answers:
zhuklara [117]3 years ago
6 0
Hello there!
The answer to your question is 4y² - 12y
Hope I helped!
algol133 years ago
5 0
First, add or subtract all variables
y2 + 4y - 16y + 3y = -7y
-7y + 2 is your answer 
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Many freeways have service (or logo) signs that give information on attractions, camping, lodging, food, and gas services prior
Ne4ueva [31]

Answer:

H0 : μd = 0

H1 : μd ≠ 0

Test statistic = 0.6687 ;

Pvalue = 0.7482 ;

Fail to reject H0.

Step-by-step explanation:

H0 : μd = 0

H1 : μd ≠ 0

Given the data:

Before: 15 26 66 115 62 64

After: 16 24 42 80 78 73

Difference = -1 2 24 35 -18 -9

Mean difference, d ; Σd / n

d = Σx / n = ((-1) + 2 + 24 + 35 + (-18) + (-9))

d = Σx / n = 33 / 6 = 5.5

Test statistic = (d / std / sqrt(n))

std = sample standard deviation = 20.146

Test statistic = 5.5 ÷ (20.146/sqrt(6))

Test statistic = 0.6687

The Pvalue :

P(Z < 0.6687) = 0.7482

At α = 0.05

Pvalue > α ; Hence we fail to reject H0

The data does not suggest a significant mean difference in the average number of accidents after information was added to road signs.

5 0
3 years ago
Which statement correctly compares the constant of varation of the graph and the equal below
lorasvet [3.4K]
For this there isn’t a graph showing .
8 0
3 years ago
What is the value of x in the equation<br> 7/8x+3/4=-6?
dedylja [7]

Answer:

x = -54/7

Step-by-step explanation:

7 0
3 years ago
Write the following number by entering one digit in each box of the place value chart.
shutvik [7]

Answer:

The number itself is 508.231

Step-by-step explanation:

Any multiplying each of the numbers, we will have the specific places

Hundreds

5 * 100 = 500

Tenths

0 * 10 = 0

ones

8 * 1 = 8

Tenths = 2 * 1/10 = 2/10 = 1/5 = 0.2

Hundredths = 3/100 = 0.03

Thousandths = 1/1000 = 0.001

So we simply sum all these to get the number itself as follows

500 + 8 + 0.2 + 0.03 + 0.001 = 508.231

5 0
2 years ago
What are two decimals that are equivalent to 7.7
Elza [17]
7.70 and 7.700 they are all the same since the 7 tenths are still in its place
8 0
3 years ago
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