joe want to know the average height of all the seventh grade male student at his school. there are 350 male seventh graders at his school. how can he find the average height without adding up the height of all 350 student.
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Some friends go to the store to buy school supplies. Noel spends $4.89. Holly spends 3 times as much as Noel. Kris spends $12.73 more than Holly. How much does Kris spend? please walk me through every single step i really need help thanks
What is the value of the expression 5y2 + 4x when x = 2.5 and y = 3?A. 40B. 55C. 231.5D. 235
Rename the number 8 hundreds 4 tens = 84
Cherries cost $5 for two pounds and $7.50 for 3 pounds. a. What is the cost per pound? b. Is it constant? c. If you were to graph this situation, would you put weight or cost on the x-axis? Which one would you put on the y-axis? d. Plot the two points described e. How much would 5 pounds of cherries cost? What did you do to solve this problem?
How do you it?
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413/14= 29.5
The alternative method is to list all of the tens multiples, and the smaller multiples when you're getting close to the answer, and this will be able to help you.
14x10= 140
14x20=280
14x30= 420 (which is slightly too big)
14x29= 406 (slightly too small)
14x29.5= 413
Hope this helps :)
if it's length is 3 feet?
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if its 2 feet, 300÷2=150, 150 feet is your answer
if its 3 feet, 300÷3=100, 100 feet is your answer
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Answer:
x = 2
Step-by-step explanation:
3/6 = 1/2 = 2/4
you are welcome <3
Answer:
Step-by-step explanation:
x/4 = 3/6
you should cross multiply them
so
6 * x= 6x
3*4= 12
now equate them
and 6x=12
x=2
hope it helps you ;)
Answers
484+b^2=1089
b^2=605
b=24.60
a²+b²=c²
22²+b²=33²
484+b²=1089
subtract 484 from both sides
b²=605
√b²=24.60
b=24.6 feet
Answer=24.6ft
Answers
first (shortest) side = x
second side = x + 5
third side = 2x - 5
the perimeter = 64 ft and is equal x + (x + 5) + (2x - 5)
x + x + 5 + 2x - 5 = 64
4x = 64 |:4
x = 16 ft
x + 5 = 16 + 5 = 21 ft
2x - 5 = 2(16) - 5 = 27 ft
Answer: 16ft, 21ft and 27ft.
Answers
1 is the smallest possible integer.
Given that: .
The discreminant of this equation is:
For imaginary zeros, we must get discreminant less than 0.
So,
Next integer of 0.2 is 1.
So 1 is the smallest possible integer.
Learn more: brainly.com/question/20521181
The question is incomplete, the complete question is
Determine the smallest integer value of a for which f(x) = ax² - 2x + 5 has imaginary zeroes. Show how you found this answer
Answer:
The smallest integer value of a is 1
Step-by-step explanation:
To find the zeroes of a function equate it by 0, then find the values of x which are the zeroes of the function
To find the types of the roots (zeroes) of a function f(x) = ax² + bx + c use the discriminant of the function b² - 4ac
- If b² - 4ac > 0, then the function has two different real roots
- If b² - 4ac = 0, then the function has one real root
- If b² - 4ac < 0, then the function has no real roots (imaginary roots)
∵ f(x) = ax² - 2x = 5
- To find its zeroes equate f(x) by 0
∴ ax² - 2x + 5 = 0
∵ f(x) has imaginary zeroes
- That means the discriminant is less then zero
∴ b² - 4ac < 0
∵ a = a, b = -2 and c = 5
- Substitute them in the inequality above
∴ (-2)² - 4(a)(5) < 0
∴ 4 - 20 a < 0
- Add 20 a to both sides
∴ 4 < 20 a
- Divide both sides by 20
∴ 0.2 < a
- That means a is greater than 0.2
∴ a > 0.2
∵ You must to find the smallest integer value of a
- The first integer greater than 0.2 is 1
∴ a = 1
The smallest integer value of a is 1