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Sholpan [36]
3 years ago
14

Several students in a class made the following statement. Decide whether you agree with the statement. If you disagree, change t

he statement to make it correct. A quadrilateral with congruent diagonals must be a rectangle. (ignore that one is already picked that was an accident)

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
5 0

Answer:

It's option c

Step-by-step explanation:

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F(x)=x^3-9x<br> What is the average rate of change of f over the interval (1,6]?
Rzqust [24]

Answer:

34

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

Here [ a, b ] = [ 1, 6 ]

f(b) = f(6) = 6³ - 9(6) = 216 - 54 = 162

f(a) = f(1) = 1³ - 9(1) = 1 - 9 = - 8, thus

average rate of change = \frac{162-(-8)}{6-1} = \frac{170}{5} = 34

3 0
3 years ago
Help ASAP please! Problem is on pictures below.
Elis [28]

Answer: figures C and D.


Explanation:


The question is which two figures have the same volume. Hence, you have to calculate the volumes of each figure until you find the two with the same volume.


1) Figure A. It is a slant cone.

Dimensions:

  • slant height, l = 6 cm
  • height, h: 5 cm
  • base area, b: 20 cm²

The volume of a slant cone is the same as the volume of a regular cone if the height and radius of both cones are the same.

Formula: V = (1/3)(base area)(height) = (1/3)b·h

Calculations:

  • V = (1/3)×20cm²×5cm = 100/3 cm³

2. Figure B. It is a right cylinder

Dimensions:

  • base area, b: 20 cm²
  • height, h: 6 cm

Formula: V = (base area)(height) = b·h

Calculations:

  • V = 20 cm²· 6cm = 120 cm³

3. Figure C. It is a slant cylinder.

Dimensions:

  • base area, b: 20 cm²
  • slant height, l: 6 cm
  • height, h: 5 cm

The volume of a slant cylinder is the same as the volume of a regular cylinder if the height and radius of both cylinders are the same.

Formula: V = (base area)(height) = b·h

Calculations:

  • V = 20cm² · 5cm = 100 cm³

4. Fiigure D. It is a rectangular pyramid.

Dimensions:

  • length, l: 6cm
  • base area, b: 20 cm²
  • height, h: 5 cm

Formula: V = (base area) (height) = b·h

Calculations:

  • V = 20 cm² · 5 cm = 100 cm³

→ Now,  you have found the two figures with the same volume: figure C and figure D. ←

7 0
4 years ago
Please help me ASAP!!!! :) I’d appreciate it
Amiraneli [1.4K]

Answer:

5×(-4) = -20

(-1) × 4 = -4

Step-by-step explanation:

Here it' sayin when a positive number ( it may be odd or even ) gets multiplied with an even number ( it may be positive or negative ) , the product will be positive number.

5×(-4) = -20 .Here 5 is a positive number & 4 is a negative even number but the product -20 is a negative number. So it contradicts the statement.

(-1) × 4 = -4 . Here -1 is a negative number & 4 is a positive even number but the product -4 is a negative number. So it contradicts the statement.

5 0
3 years ago
What’s the distance between (12,-4) and (8,-1)
TEA [102]

Can you put the graph up to make it simpler?


8 0
3 years ago
You spend $154 to make wooden bookends and plan to sell them online for $8.50 each. You will charge an additional $3.25 per book
const2013 [10]
<span>At least 88 bookends but to be certain of that profit I personally would sell at least 90</span>
4 0
4 years ago
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