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Pani-rosa [81]
2 years ago
7

Solve the equation 15p2 + 7p − 4 = 0 by completing the square.

Mathematics
1 answer:
natulia [17]2 years ago
4 0

Answer:

p=0 or p=-7/15

Step-by-step explanation:

15p2+7p=0

p(15p+7)=0

p=0 or 15p+7=0

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Solve the problem. For a standard normal distribution, find the percentage of data that are between 3 standard deviations below
solong [7]

Answer:

83.85%

Step-by-step explanation:

We will use the empirical rule. For a standard normal distribution the mean is equal to 0 and the standard deviation is equal to 1. Then, between 3 standard deviations below the mean, we have 2.35% + 13.5% + 34% = 49.85% of data, and 1 standard deviation above the mean we have 34% of data. Therefore, the percentage of data that are between 3 standard deviations below the mean and 1 standard deviation above the mean is 49.85%+34% = 83.85%.

7 0
3 years ago
Can someone help me please!!!!!
AleksandrR [38]

Answer:

4/1 +2

Step-by-step explanation:

2 is where you start

4 how high/low

1- how far to right

5 0
3 years ago
If the diameter of a cylinder is 8 feet, then its radius is 16 feet.
aliya0001 [1]
Hello!

The radius is half the diameter

This is not true because 16 is not half of 8

The answer is false

Hope this helps!
5 0
3 years ago
Read 2 more answers
Pls help my last question :(
MissTica

Answer:

m<4=34° vertically opposite angles are equal

Step-by-step explanation:

so

<1=292°=<3

4 0
3 years ago
Sandeep uses 1/5 of a cup of vinegar in his salad dressing recipe. How much vinegar would Sandeep use to make 4/5 of a recipe?
Westkost [7]

Answer:

4 /25

Step-by-step explanation:

Given that :

Cup of vinegar used per recipe = 1/5 cup

Amount of vinegar to be used for 4/5 of a recipe ;

1 cup recipe = 1/5 cup vinegar

4/5 cup recipe = x

Cross multiply :

x = 1/5 * 4/5

x = 4/25 cup

Hence, Sandeep will use 4/25 cup of vinegar

6 0
3 years ago
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