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Ivanshal [37]
3 years ago
13

PLEASE I NEED HELP ASAP

Mathematics
1 answer:
Alex787 [66]3 years ago
4 0

{\texttt{\huge{\red{SOLUTION :-}}}}

<u>S</u><u>O</u><u>M</u><u>E</u><u> </u><u>I</u><u>M</u><u>P</u><u>O</u><u>R</u><u>T</u><u>A</u><u>N</u><u>T</u><u> </u><u>P</u><u>O</u><u>I</u><u>N</u><u>T</u><u>S</u><u> </u><u>W</u><u>H</u><u>I</u><u>C</u><u>H</u><u> </u><u>S</u><u>H</u><u>O</u><u>U</u><u>L</u><u>D</u><u> </u><u>B</u><u>E</u><u> </u><u>K</u><u>N</u><u>O</u><u>W</u><u>N</u><u> </u><u>B</u><u>E</u><u>F</u><u>O</u><u>R</u><u>E</u><u> </u><u>S</u><u>O</u><u>L</u><u>V</u><u>I</u><u>N</u><u>G</u><u> </u><u>T</u><u>H</u><u>E</u><u> </u><u>Q</u><u>U</u><u>E</u><u>S</u><u>T</u><u>I</u><u>O</u><u>N</u><u> </u><u> </u><u>:</u><u>-</u>

  • <u> </u><u>√</u><u>-</u><u>1</u><u> </u><u>=</u><u> </u><u>i</u>

<u>G</u><u>I</u><u>V</u><u>E</u><u>N</u><u> </u><u>T</u><u>H</u><u>A</u><u>T</u><u> </u><u>:</u><u>-</u>

√-9 -6

=> √(3×3×-1) -6

=> 3√-1 - 6

=> 3i -6

<h2>=> <u>-</u><u>6</u><u> </u><u>+</u><u> </u><u>3</u><u>i</u></h2>

(answer)

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Anna inherits $70000 and decides to invest part of it in an education account for her daughter and the rest in a 5 year CD. If t
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E = amount she put for Education

CD = amount she put for a Certificate of Deposit.

so, whatever those amounts are, we know that all she got is 70,000 bucks total, so E + CD = 70000.

how much is three times the CD?  well, 3*CD or 3CD.

how much is 10,000 more than that?  well 3CD + 10000.

since we know that the amount on Education was 10000 more than three times the CD, then E = 3CD + 10000.

\bf \begin{cases}&#10;E+CD=70000\implies \boxed{CD}=70000-E\\&#10;E=3CD+10000\\&#10;------------------\\&#10;E=3\left( \boxed{70000-E}\right)+10000&#10;\end{cases}&#10;\\\\\\&#10;E=210000-3E+10000\implies 4E=200000\implies E=\cfrac{200000}{4}&#10;\\\\\\&#10;E=50000

how much was it invested in the CD?  well, CD = 70000 - E.
5 0
3 years ago
Read 2 more answers
F(x) = 1/3x + 1 if x=-18
Artyom0805 [142]

Answer:

7

Step-by-step explanation:

1/3*(-18) + 1 = 7

Just plug in the x which is -18, and solve with a calculator.

Hope this helps!

4 0
2 years ago
Carrie and Ryan have both computed the slope of the least-squares line using data for which the standard deviation of the x-valu
alexdok [17]

Answer:

Carrie's slope value is correct.

Step-by-step explanation:

The least square regression line is: (y -\bar y)=b_{yx} (x-\bar x)

Here b_{yx} is the slope of the line.

The formula to compute the slope is:

b_{yx}=r\frac{\sigma_{x}}{\sigma_{y}}

Here \sigma_{x} = standard deviation of <em>x</em> and \sigma_{y} = standard deviation of <em>y</em>.

It is provided that the standard deviation of <em>x</em> and <em>y</em> are equal.

So the slope of the regression line is:

b_{yx}=r\frac{\sigma_{x}}{\sigma_{y}}=r\frac{\sigma_{x}}{\sigma_{x}}=r

Thus, if the standard deviation of <em>x</em> and <em>y</em> are equal the slope of the line is same as the correlation coefficient.

The correlation coefficient is a measure used to determine the strength of the linear relationship between the variables.

It ranges from -1 to 1.

Carrie's slope value was 0.50 and Ryan's slope value was 2.

Since -1 ≤ r ≤ 1 the value of slope cannot be 2.

Thus, Ryan's slope value is incorrect.

6 0
4 years ago
Can you help me find x?<br> 37% of x is 44.03
balandron [24]

Answer:

119

Step-by-step explanation:

37% = 44.03

1% = 44.03 ÷ 37 = 1.19

100% = 1.19 x 100 = 119 (100% is x)

5 0
3 years ago
a bad contains 4 red marbles, 16 yellow marbles, 5 purple marbles, 16 blue marbles, and 10 greem marbles. What is the probabilit
tensa zangetsu [6.8K]
<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Find the total number of marbles (this will be the denominator):

4 + 16 + 5 + 16 + 10 = 51

Probability of pulling out red marble:

4/51

Probability of pulling out a green marble:

10/51

Add these two probabilities together:

14/51 <== the answer

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

6 0
3 years ago
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