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Burka [1]
3 years ago
7

Solve the equation 9x^2 - 64= 0 9x^2 + 64= 0

Mathematics
1 answer:
My name is Ann [436]3 years ago
4 0

Answer:

x1= - 8/3 , x2= 8/3

Step-by-step explanation:

You might be interested in
65% of the pumpkins on the block with carved into jack-o'-lantern if there were 26 jack-o'-lanterns how many total pumpkins are
9966 [12]

Answer:

there's a total of 40 jack o lanterns

Step-by-step explanation:

26÷65%×100

6 0
4 years ago
Gerard concluded that the triangle with sides StartRoot 95 EndRoot feet, 8 feet, and StartRoot 150 EndRoot cannot be used as a b
Pachacha [2.7K]

Answer:

Check explanations for answer

Step-by-step explanation:

Here, we want to find out how Gerard came to the conclusion

For him to arrive at this conclusion, then we should consider the lengths given if they form a right triangle and are suitable for the building frame

From the lengths that we have

If we square the longest length, then the sum of the squares of the two other lengths should be the same as it is

This is in obedience to Pythagoras’ theorem

However, this does not hold

√(150)^2 is not equal to 8^2 + (√(95))^2)

and so since this does not work, then the triangle is not right-angled and cannot be use as the frame

3 0
3 years ago
Explain how to find 80% of a number if 135% of that number is 540.
Dmitry_Shevchenko [17]

Answer:

x = 911.25

Step-by-step explanation:

let the number be x

by putting the word problem in equation, we get :

  • 80/100 × x = 135/100 ×540
  • 4/5 × x = 135/10 × 54
  • x = 135/10 × 54 × 5/4
  • x = 911.25

6 0
3 years ago
If the last digit of weight measurement is equally likely to be any of the digits 0 through 9. Round your answers to one decimal
Sedbober [7]

Answer:Probability that the last digit is 0=0.1

Step-by-step explanation:

The likely digits for the last digits runs from 0 through 9 giving a total of 10 digits

The fore P(last digit to be 0) = 1/10 = 0.1

3 0
3 years ago
If a person weighs 180 pounds on the surface of the earth and the radius of the earth is 3900 miles, what will the person weigh
emmasim [6.3K]
Gravity is inversely proportional to the square of the distance.
In English:
Your weight at the Earth's surface and your weight 850 miles above the Earth's surface decreases by a factor of

(4,750 / 3,900) ^ 2 = <span> <span> <span> 1.483399080 </span> </span> </span>

So your weight would decrease by (your weight / <span> <span> <span> 1.483399080 </span> </span> </span> )
If you weigh 180 pounds, at 850 miles above the Earth your weight is
180 / <span> <span> <span> 1.483399080 </span> </span> </span> which equals
<span> <span> <span> 121.3429362515 </span> </span> </span>  pounds.


7 0
3 years ago
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