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Rus_ich [418]
3 years ago
13

What is the square root of 49/100?​

Mathematics
1 answer:
anzhelika [568]3 years ago
5 0
The square root is 0.7
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Dwight drove 792 miles from Pensacola, Florida, to key west , Florida and then back again. What is the distance he traveled to t
Yuliya22 [10]
Your answer: 1,600 miles
7 0
3 years ago
Write your own two equations that would have a solution of (3,6)
irinina [24]

Answer:

x + 2y = 15

3x + y = 15

yes that's it haha

8 0
3 years ago
A sports store received a shipment of 400 baseball gloves, 30% were left-
noname [10]
280 right handed gloves. First, we'd need to find out the amount of left handed gloves. We do this by multiplying 0.3 (which is basically 30%) by the total number of gloves. This is because we are finding out 30% of the 400 gloves, and "of" represents multiplication. We get 120. Then, we subtract that number from 400 to get the amount of right handed gloves, which is 280. hope this helps :)
5 0
3 years ago
Read 2 more answers
A random sample of 25 statistics examinations was taken. the average score in the sample was 76 with a standard deviation of 12.
Natali5045456 [20]

Since the sample size is less than 30, therefore we use the t statistic.

Let us define the given variables:

N = sample size = 25

X = average score = 76

s = standard deviation = 12

99% Confidence interval

Degrees of freedom = n – 1 = 24

 

The formula for confidence interval is given as:

CI = X ± t * s / sqrt N

 

using the standard distribution table, the t value for DF = 24 and 99% CI is:

t = 2.492

 

Therefore calculating the CI using the known values:

CI = 76 ± 2.492 * 12 / sqrt 25

CI = 76 ± 5.98

CI = 70.02, 81.98

 

Answer: The average score ranges from 70 to 82.

3 0
3 years ago
Convert Each Equation To Slope-Intercept Form. (1/2)
kotykmax [81]
Hey there, Mandoguy!

To convert each equation to slope-intercept form, first we need to distribute everything that's on the parenthesis (if it has one)
So, number one would be

1) y + 3 = 4x + 24 (I multiplied 4 times x and 4 times 6)
Now, we need to isolate y and since they are adding 3 to it, we need to subtract 3 to cancel it out. Remember what we do on one side we have to do it in the other side.
So, it would be y + 3 - 3 = 4x + 24 - 3
Number 1 would be
y = 4x + 21
y=4x+21

2) 6x + 2y = 12
Goes to
2y = 12 - 6x (I subtracted 6x from both sides to leave 2y alone)
y = 6 - 3x (I divided both sides by 2 since y it's being multiplied by 2)
y = -3x + 6 (Now, I just rearranged to make it y = mx + b
y=-3x+6

3) y = -2 + 1/3 (x + 9) In this case y is already isolated but we have parenthesis and we can't have that.
So, we distribute the number that's in front of the parenthesis to the numbers inside.
y = -2 + 1/3x + 3 (I multiplied 1/3 times x and 1/3 times 9 which is 3)
y = 1/3x + 1 (I combined like terms and rearranged to make it y=mx+b)
y= \frac{1}{3} x+1

4) 2x - 5y = -15 (Same as always. Isolate y. Subtract 2x from both sides)
-5y = -15 - 2x (Did you see that? We have a negative value on y and we can't have that. To fix it, we multiply both sides by -1 or just change the sign of every term)
Once you do that you will get
5y = 15 + 2x
y = 3 + 2/5 x (I divided both sides by 5 to isolate y)
y = 2/5x + 3 (Rearranged it to y = mx + b)
y =  \frac{2}{5}x + 3

5) -x - 2y = 2 (Since the x it's being subtracted, we added to both sides)
-2y = 2 + x (See again? We have a negative value on y, so we multiply by -1 on both sides or change every sign to the opposite of itself)
So we get
2y = -2 - x (Now, we divide both sides by 2 to isolate y)
y = -1/2x - 1 (Rearranged to y = mx + b)
y = - \frac{1}{2} x - 1

Thanks for using Brainly!
See you soon.
7 0
3 years ago
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