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Gwar [14]
3 years ago
10

Write and solve a story problem for each method you can use to find decimal sums and differences.

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
6 0

Answer:

could you give me some story problems Plz

Step-by-step explanation:

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Pls Answer Quickly! (Only if You know!)
Ipatiy [6.2K]

Answer:

A

Step-by-step explanation:

Sin(x) is odd while cos(x) is even (because f(x)=f(-x)

3 0
2 years ago
I want to make sure i got this right. PLS HELP ASAP I NEED IT<br><br> CALC 1 one question
IrinaK [193]
\bf f(x)=&#10;\begin{cases}&#10;x^3&x\le 1\\&#10;mx+b&x\ \textgreater \ 1&#10;\end{cases}

now, a function may well be continuous, but it may not be differentiable.

graph wise, differentiability means, a smooth curve, with no abrupt spikes or drops or cuts.

so for this piece-wise to be differentiable, the subfunctions must meet at junctions smoothly, with no abrupt changes, so mx + b, must blend in with x³ smoothly.

now, that can only occur if mx + b has the same slope as x³ at that point where they meet.  The point where they meet is at x = 1, well, let's check what is the slope of x³ at x = 1.

\bf \cfrac{d}{dx}[x^3]\implies \left.  3x^2\cfrac{}{}\right|_{x=1}\implies 3(1)^2\implies 3

therefore "m" for mx+b, must be 3 then.

now, what's the value of x³ at x = 1?  well is just (1)³, which is 1.

so for 3x + b, when x = 1, it must also equals 1 as well, that way it meets x³, thus

3x + b

3(1) + b = 1

b = -2

check the graph below.

6 0
3 years ago
Yoshi has a rope 30 feet long. He must cut it in pieces that are 1/4 foot long will he get more or fewer than 30 pieces
dybincka [34]

Answer:

More

Step-by-step explanation:

If we divide 30 by .25 we will get 120

5 0
3 years ago
What is 3/4 + 1/3? answer please
tatiyna

Answer:

13/12

Alternate form: 1.084 or 1, 1/12

Step-by-step explanation:

3/4+1/4

9/13+4/13

13/12 Solution.....

Sadanavam1979 GREETINGS

3 0
3 years ago
Read 2 more answers
The distance between each base on a field is 90 ft. How far does a catcher have to throw the ball from home plate to second base
Gnoma [55]

Step-by-step explanation:

A baseball field is in the shape of a square (or diamond).  Home plate and second base are opposite corners of each other.  So the distance is equal to the diagonal of the square.

Use Pythagorean theorem to find the diagonal, or use properties of a 45-45-90 triangle.

Using Pythagorean theorem:

c² = a² + b²

c² = (90 ft)² + (90 ft)²

c = 90√2 ft

c ≈ 127 ft

7 0
3 years ago
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