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Colt1911 [192]
3 years ago
5

Multiply and divide These

Mathematics
1 answer:
Elan Coil [88]3 years ago
3 0

Answer:

1. 1 2.-1 3.-1 4.1 5.18 6.5

Step-by-step explanation:

that 8s answer gegegge

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Will appreciate it :)
Sonbull [250]

Answer:

Step-by-step explanation:

In order for lines to be parallel they have to have the same slope. The first 2 equations there are solved for 5y, so let's do that to the last one--solve it for 5y--and put them all in the same order (the order that the first one is in; they will all look identical then). Equation #2 in the same order as in #1: 5y = 3x - 4. Equation #3 then becomes 5y = 3x - 1. Equations #2 and 3 have the same slope.

5 0
4 years ago
A living room has a circular rug. According to a small tag, the rug has a circumference of 6.28 yards. What is the rug's radius?
mezya [45]

Answer:

1 yard

Step-by-step explanation:

the formula for the circumference of a circle is 2 times pi times the radius of the circle. so to find out the radius you divide the circumference by 2 and then by pi.

3 0
3 years ago
A group of 59 randomly selected students have a mean score of 29.5 with a standard deviation of 5.2 on a placement test. What is
Otrada [13]

Answer:

29.5+/-1.11

= ( 28.39, 30.61)

Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 29.5

Standard deviation r = 5.2

Number of samples n = 59

Confidence interval = 90%

z-value (at 90% confidence) = 1.645

Substituting the values we have;

29.5+/-1.645(5.2/√59)

29.5+/-1.645(0.676982337100)

29.5+/-1.113635944529

29.5+/-1.11

= ( 28.39, 30.61)

Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)

7 0
3 years ago
I can't solve this please help me
murzikaleks [220]
If you put a picture, Its not showing up. If not, what cant you solve?
7 0
3 years ago
In a dihybrid cross between RrTt and RRtt, what are the genotype and phenotype ratios of the offspring, assuming R and T are dom
liberstina [14]
The ratio which we get by this cross will be 1:1:1:1 and phenotypic ratio will be 1:1.
8 0
3 years ago
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