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4 years ago

What is the value of the expression 15x - 4y when x = 2 and y = 6

Mathematics

1 answer:

skelet666 [1.2K]4 years ago

6 0

Answer:

Step-by-step explanation:

$(15 \times 2) - (4 \times 6) = 30 - 24 = 6$

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PLEASE HELP! THIS IS A BIG PART OF MY GRADE AND IS DUE RLLY SOON. I DONT WANNA FAIL, I WILL GIVE BRAINLIEST.

sweet [91]

Answer:

8931

Step-by-step explanation:

1 1 1

21 x 18 x 13 = 4914

16 x (18x13) = 3744

13 x 21 = 273

-------

8931

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(I am not 100% Sure, you should double check)

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3 years ago

Solve the equation 2x^2+8x-1=0 by completing the square. Give your answer to 2 decimal places 4 marks

ad-work [718]

Answer:

Step-by-step explanation:

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4 years ago

Which is the graph of 5x + 4y > 2

NNADVOKAT [17]

Answer:

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Step-by-step explanation:

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3 years ago

what is the volume of this box if the volume is scaled down to 1/10? the original volume is 528 and the length is 11 inches the

ankoles [38]

Answer:

Step-by-step explanation:

I assume the box is a rectangular figure

Volume, V=L*W*H

V=11*8*6=528 in^3

528*1/10=52.8 in^3

4 0

3 years ago

Maria has a portfolio consisting of 7 shares of stock A (purchased for $70 per share) and 4 shares of stock B (purchased for $10

Vlad [161]

Answer:

Hence, the expected rate of return after 1 year for Mary's portfolio is $0.17751$

Step-by-step explanation:

We have,

Purchase 7 shares of stock A for $70 per share and 4 shares of stock B for $100 per share then The expected rate of return after 1 year for Mary's portfolio.

Weight invested in stock A is $W_x=\frac{7\times 70}{7\times 70+4\times 100}$

$\Rightarrow W_x=\frac{490}{490+400}\\\Rightarrow W_x=\frac{490}{890}\\\Rightarrow W_x=\frac{49}{89}\\\Rightarrow W_x=0.5505$

Weight invested in stock B is $W_y=\frac{4\times 100}{7\times 70+4\times 100}$

$\Rightarrow W_y=\frac{400}{490+400} \\\Rightarrow W_y=\frac{400}{890} \\\Rightarrow W_y=\frac{40}{89} \\\Rightarrow W_y=0.4494$

The expected value of the rate of return $=W_x\times\;\text{expected rates of stock A}+W_y\times\;\text{expected rates of stock B}$

$=0.5505\times0.02+0.4494\times0.15$

$=0.01101+0.06741$

$=0.17751$

4 0

3 years ago