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siniylev [52]
2 years ago
13

80

Mathematics
1 answer:
dalvyx [7]2 years ago
3 0

Answer:

38 is the correct solution

You might be interested in
I want to be a teacher some day and i know this question----------What is -15 -(-8)=? remember a negitive plus a negitive equals
irina [24]
Answer is -7 because -15+8=-7
8 0
4 years ago
HELP! I put the formula but I don’t know the radius
ahrayia [7]

Answer:

C. 8,624

Step-by-step explanation:

recall that the formula for circumference is

Circumference = 2πr  ( = given as 85 meters)

hence,

85 = 2πr

r = 85/(2π)

given h = 15m

volume of cylinder

= πr²h

= π (85/2π)² 15  (using calculator and assuming π = 3.14)

= 8628.58

Comparing with the choices, the closest choice (within rounding error) is C. 8,624

8 0
4 years ago
Which of the following is true of the discriminant for the graph below?
Sonbull [250]

Answer:

<u>Option C. It is zero</u>

Step-by-step explanation:

The graph represents a quadratic equation

The quadratic equation has the form ⇒a x² + b x + c

The discriminant of the quadratic equation is D = b² - 4ac

From the discriminant of the quadratic equation, we can know the type of roots of the quadratic equation.

  1. If D > 0 ⇒ Two real roots.
  2. If D = 0 ⇒ one real roots
  3. If D < 0 ⇒ Two imaginary roots.

The roots of the quadratic equation are the x-intercepts of the function.

As shown at the figure, the quadratic equation has only one point of intersection with the x-axis

So, the function has only one root ⇒ D = 0

So, the discriminant of the quadratic equation = 0

<u>The answer is option C. It is zero</u>

7 0
3 years ago
Evaluate the expression 3x^2+4x^3 when x=4.
larisa [96]

Step-by-step explanation:

304

plug 4 in for x

3(4)^2 + 4(4)^3 = 304

48 + 256 = 304

6 0
3 years ago
I really need help with this no sum answers or else. You will get 20 points and brain list
nordsb [41]

Answer:

if their asking for % then this is the answers

1. 41% of 900 is 369

2. 24%

3. 46%

4. 23%

5. 95%

6. 23%

7. 75%

8. 22%

9. 92%

10. 45%

5 0
3 years ago
Read 2 more answers
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