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vagabundo [1.1K]
3 years ago
7

Can anyone help me? Brainlist if right! Thx :)

Mathematics
1 answer:
tamaranim1 [39]3 years ago
4 0

Answer:

odd: 4/7

not 3: 6/7

4 or 5:  2/7

spinner spun 2: there both 1/7 i think im

only in 7th grade ;-;

Step-by-step explanation: well there are 7 spaces so the probabilty

of it landing on an odd space on the wheel is how many odd numbers there are over 7 . and there is only 1 three so the chance that it will not land on 3 is 6/7.  there is a 2/7 chance it will land on 4 or 5. and im not to sure abt the last one but like i said im  only in the 7th grade i am taking p classes tho so the rest should be right. :D        

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Is triangle A'B'C' a dilation of triangle ABC? Explain.
tresset_1 [31]
<span>C.No, it is not a dilation because the points of the image are not moved away from the center of dilation proportionally. </span>
3 0
4 years ago
Read 2 more answers
A fruit company has 20% returns in periods of normal rainfall and -3% returns in droughts. The probability of normal rainfall is
WARRIOR [948]

Answer:

E(x) = 10.8\% \\\\

The fruit company’s expected returns are 10.8%

Step-by-step explanation:

The expected returns of the fruit company is given by

E(x) =\sum (x \cdot P(x)) \\\\

For the given case,

Returns in normal rainfall = x₁ = 20% = 0.20

Returns in drought = x₂ = -3% = -0.03

Probability of normal rainfall = P(x₁) = 60% = 0.60

Probability of drought = P(x₂) = 40% = 0.40

So, the expected value of returns is

E(x) = x_1 \cdot P(x_1)  + x_2 \cdot P(x_2)  \\\\E(x) = 0.20 \cdot 0.60  - 0.03 \cdot 0.40  \\\\E(x) = 0.12 - 0.012 \\\\E(x) = 0.108 \\\\E(x) = 10.8\% \\\\

Therefore, the fruit company’s expected returns are 10.8%

7 0
3 years ago
Solve for t.<br> 3t + 9 &gt; -21
RideAnS [48]

Answer:

3t>-30

t>-10

..........

3 0
3 years ago
A rectangular lawn is 15 yards by 26 yards. It would cost $9.00 per yard to install a fence around the lawn. How much would it c
shutvik [7]

Answer: $738

Step-by-step explanation:

<em>Find the perimeter:</em>

15 + 15 + 26 + 26 = 30 + 52 = 82 yards.

<em>Since it's $9 per yard, multiply:</em>

82 · $9 = $738

7 0
3 years ago
Read 2 more answers
Please hurry! This is due soon.
kotykmax [81]

Hi!

We can see here that this is a composition question.

And since the composition of g of f of x is x, we can conclude that g(x) is the inverse of f(x) (if you're confused, search up the definition of an inverse function).

To find an inverse function, we can take the f(x) function and change the positions of the x and y variables.

f(x)=\frac{e^7^x+\sqrt{3}}{2}

y=\frac{e^7^x+\sqrt{3}}{2}

x=\frac{e^7^y+\sqrt{3}}{2}

2x=e^7^y+\sqrt{3}

e^7^y=2x-\sqrt{3}

7y=ln(2x-\sqrt{3})

y=\frac{ln(2x-\sqrt{3})}{7}

Which is answer choice A, to check your work, you can solve the composition of g(f(x)), which will get you x.

g(f(x))

g(\frac{e^7^x+\sqrt{3}}{2})

\frac{ln(2(\frac{e^7^x+\sqrt{3}}{2})-\sqrt{3}}{7}

2s cancel.

\frac{ln(e^7^x+\sqrt{3})-\sqrt{3}}{7}

The natural log and e cancel.

\frac{7x+\sqrt{3}-\sqrt{3}}{7}

\sqrt{3}s cancel.

\frac{7x}{7}

7s cancel.

x

Hope this helps!

3 0
3 years ago
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