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kolezko [41]
3 years ago
12

20 POINTS ANSWER QUICK 7 (1) = 7 is an example of what property?

Mathematics
2 answers:
Lady_Fox [76]3 years ago
8 0

Answer:

Identity property of multiplication.

Step-by-step explanation:

SIZIF [17.4K]3 years ago
6 0

Answer:

Identity property

Step-by-step explanation:

Identity property of multiplication: The product of 1 and any number is that number. For example, 7 × 1 = 7 7 \times 1 = 7 7×1=77, times, 1, equals, 7.

I hope it's helpful!

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The velocity v that an object r units
erastova [34]

Answer:

M=v^2r / 2G

Step-by-step explanation:

Open the file, it is solved for you, your welcome.

4 0
2 years ago
the length of rectangular park is 15 m longer than that of the park is 114m find it's length and breadth​
Schach [20]

Answer: Length: ≈20.5 Breadth: ≈5.5

Step-by-step explanation: x(x+15)=114, solving for x we get 5.547 and 20.547.

8 0
2 years ago
How heavy a load (pounds) is needed to pull apart pieces of wood 4 inches long and 1.5 inches square? Here are data from student
statuscvo [17]

Answer:

a. (29526.192 , 32155.808)

b. (29673.9301 , 32008.0699)

Step-by-step explanation:

on calculation, we find that sample mean = 30843 and sample standard deviation = 3018.504, and n=20

1)

Sample Mean = 30841

SD = 3000

Sample Size (n) = 20

Standard Error (SE) = SD/root(n) = 670.8204

alpha (a) = 1 - 0.95 = 0.05

z critical value for 95% confidence interval:

z(a/2) = z(0.025) = 1.96

Margin of Error (ME) = z(a/2) x SE = 1314.808

95% confidence interval is given by:

Sample Mean +/- (Margin of Error) = 30841 +/- 1314.808

= (29526.192 , 32155.808)

2)when std dev of population is not known, we use sample's, but we have to use t instead of z

Sample Mean = 30841

SD = 3018.504

Sample Size (n) = 20

Standard Error (SE) = SD/root(n) = 674.958

alpha (a) = 1-0.9 = 0.1

we use t-distribution as population standard deviation is unknown

t(a/2, n-1 ) = 1.7291

Margin of Error (ME) = t(a/2,n-1)x SE = 1167.0699

90% confidence interval is given by:

Sample Mean +/- (Margin of Error)

30841 +/- 1167.0699 = (29673.9301 , 32008.0699)

4 0
3 years ago
Simplify your answer and write it as a proper fraction,improper fraction,or interger
devlian [24]

Answer:

2

Step-by-step explanation:

Take any 2 points on the graph,

(50, 10) & (90, 90)

Use the slope formula:

\frac{y2-y1}{x2-x1}

= (90-10)/(90-50)

= (80)/(40)

= 2

Hence, the slope is 2.

<em>Feel free to mark this as brainliest! :D</em>

4 0
2 years ago
Write this fraction as a sum or difference.<br><br> 17. 9p-63
Alex787 [66]
P=7 because when you do bring 63 on the other side it'll be 9p=63 and after that divide both sides by 9 and you'll have p=7
5 0
3 years ago
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