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3 years ago

5

WILL MARK BRAINLIETS! Claire has 300 fruits to sell.She sells 75 fruits each day for 3 days.How many fruits does she have left t

o sell after 3 days?

2 answers:

oee [108]3 years ago

8 0

Answer:

75

Step-by-step explanation:

75*3=225

300-225=75 remaining

KengaRu [80]3 years ago

7 0

Answer:

75

Step-by-step explanation:

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If two angles of a triangle are 10 degrees and 20 degrees, then the triangle is ????

Wewaii [24]

Answer:

Scalene

Step-by-step explanation:

Because all triangular angles add up to 180 degrees.

10+20=30

180-30=150

None of those angles are the same.

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3 years ago

Given the table of values below, which of the following ordered pairs are found on the graph of the inverse function? A. (-2, -1

Ainat [17]

Given:

The of values of a function.

To find:

The ordered pairs that are found on the graph of the inverse function.

Solution:

If a function is defined as

$f(x)=\{(x,y):x\in R,y\in R\}$

Then its inverse function is defined as

$f^{-1}(x)=\{(y,x):x\in R,y\in R\}$

From the given table it is clear that, the ordered pairs of the function f(x) are :

$\{(-2,-14),(-1,10),(0,6),(1,2),(2,-2)\}$

So, ordered pairs of the inverse function are :

$\{(-14,-2),(10,-1),(6,0),(2,1),(-2,2)\}$

Therefore, the correct option is B.

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3 years ago

22: A 2.0 kg object moves along the x-axis under the influence of an unknown force. Its potential energy due to the force is U(x

aleksandr82 [10.1K]

Answer: a) -13.25 N, b) 1.78 m/sec

Step-by-step explanation:

Since we have given that

$U(x)=ax^4+bx^2$

where

$a=2.5\ J/m^4\\\\b=12\ J/m^2$

As we know that

$F=\dfrac{-dU}{dx}=-(4ax^3+2bx)$

Here, x= 0.5 m

So, it becomes,

$F=-(4\times 2.5\times (0.5)^3+2\times 12\times 0.5)=-13.25\ N$

Now, we need to find the velocity when it crosses the origin,

$F=mg\\\\F=m\dfrac{dv}{dt}\\\\F=mv\dfrac{dv}{dx}\\\\-(4ax^3+2bx)dx=mvdv\\\\\int\limits^{0.5}_0 {-(4ax^3+2bx)} \, dx =\int\limits {mv} \, dv\\\\ \dfrac{-4ax^4}{4}+\dfrac{2bx^2}{2}|_0^{0.5}=\dfrac{mv^2}{2}\\\\ax^4+bx^2|_0^{0.5}=\dfrac{mv^2}{2}\\\\2.5(0.5)^4+12(0.5)^2=\dfrac{2v^2}{2}\\\\0.15625+3=v^2\\\\3.15625=v^2\\\\\sqrt{3.15625}=v\\\\v=1.78$

Hence, a) -13.25 N, b) 1.78 m/sec

7 0

4 years ago