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HACTEHA [7]
3 years ago
11

What is the value of this expression when a = 3 and b = negative 2? (StartFraction 3 a Superscript negative 2 Baseline b Supersc

ript 6 Baseline Over 2 a Superscript negative 1 Baseline b Superscript 5 Baseline EndFraction) squared
Mathematics
2 answers:
Vlad [161]3 years ago
8 1

Answer:

The answer is NOT 625 that answer is to this question: What is the value of (Negative 5) Superscript 4?  that equals 625

The actual answer is: -27

Step-by-step explanation:

9*-2 is 81 and 6*-1 is -6 and we put 81 over -6 and we divide that and get -13.5 then we do -2*6 and we get -64 and then we have -2*5 and that equals -32, we then get 2 after we divide those two numbers. after that we times -13.5 by 2 and we get -27.

I just did this and i will see if it works thanks. :)

erastova [34]3 years ago
4 0

Answer:

625

Step-by-step explanation:

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A frustum is formed when a plane parallel to a cone’s base cuts off the upper portion as shown. Which expression represents the
Bezzdna [24]
Think of the two pieces together as a single cone of height 19, and its volume.
Then think of only the upper piece as a cone, and find its volume.
The volume of the frustum is the total volume minus the volume of the upper piece.

The volume of a cone is:

V = \dfrac{1}{3} \pi r^2 h

Total volume:

V_t = \dfrac{1}{3} \times \pi \times 7.5^2 \times 19

Volume of upper cone:

V_u = \dfrac{1}{3} \times \pi \times 3.5^2 \times 8

Volume of frustum:

V_f = \dfrac{1}{3}\pi(7.5^2)(19) - \dfrac{1}{3}\pi(3.5^2)(8)



3 0
3 years ago
Read 2 more answers
Which of the following inequalities represents a number y that is less than 4 but greater than -1
sukhopar [10]

Four is greater than y, and -1 is less than y

4 > y <  - 1

5 0
3 years ago
a model of an apartment is shown 1\4 in. represents 3 feet in the actual apartment. Find the actual area of the master bedroom
Hatshy [7]

Answer:12 feet by 9 feet


Step-by-step explanation:

1/4 = 3 feet, so every 1/4 of an inch there is three feet, e.g. 3/4 inches of that scale is 9 feet, 1 1/2 inches would be 18 feet, make sense?

8 0
3 years ago
Can somebody please help me with the question below and please explain how to find the answer? plz, I'm studying for a test plzz
blagie [28]

Answer:

-10/9 < -2/3 < 4/6 < 6/5 < 5/4

(hope this helps!)

Step-by-step explanation:

3 0
2 years ago
A large explosion causes wood and metal debris to rise vertically into the air with an initial velocity of 96 feet per second. T
Vladimir [108]

Answer:

the height after 2 seconds will be 128 feet

Step-by-step explanation:

Data provided in the question:

Initial velocity = 96 feet per second

The function of height of falling debris above the ground is given as:

h(t) = 96t - 16t²

A) To find height after time t = 2 seconds

substituting the value of time in the above function, we get

h(t) = 96 × 2 - 16 × 2²

or

h(t) = 192 - 16 × 4

or

h(t) = 192 - 64

or

h(t) = 128 feet

Hence,

the height after 2 seconds will be 128 feet

5 0
3 years ago
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