2 years ago

8.

Mathematics

1 answer:

svp [43]2 years ago

7 0

A 80 square meter I’m not quite sure

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NEED ANSWER ASAP!!!!

lesya692 [45]

Answer:

1st option

Step-by-step explanation:

To find the difference of the given matrices, we just need to subtract the corresponding elements of the two matrices as shown below:

$\left[\begin{array}{cc}-4&8\\3&12\end{array}\right] -\left[\begin{array}{cc}2&1\\-14&15\end{array}\right] \\\\ \\ =\left[\begin{array}{cc}-4-2&8-1\\3-(-14)&12-15\end{array}\right]\\\\ \\ =\left[\begin{array}{cc}-6&7\\17&-3\end{array}\right]$

Thus, 1st option gives the correct answer

7 0

3 years ago

Read 2 more answers

Jose can read 7 pages of his book in 5 minutes. At this rate, how long will it take him to read the entire 175 page book?

il63 [147K]

125 minutes, or 2 hours and 5 minutes.

$\frac{5}7 = \frac{x}{175}$
cross multiply
5*175=7x
875=7x
$\frac{875}7=x$
125=x

5 0

3 years ago

Read 2 more answers

you deposit 100$ each month into an account earning 8% interest compounded monthly. How much will you have in the account in 15

pickupchik [31]

Use the exponential function of f(x)= 100x times (1.08)^2

7 0

3 years ago

3/10 + 4/100 = ???<br><br> .

Arlecino [84]

Answer:

34/100

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Manny bought a brand new car in 2012 for $28,750. If the car depreciates by 12% each year, write an exponential function to mode

patriot [66]

The exponential formula for this situtation will be given by:
f(x)=ae^(-bx)
where:
a=initial price
b=rate
x=time in years
hence the formula will be:
f(x)=28750e^(-0.12x)
thus the value of the car in 2018 will be:
x=2018-2012=6 years
thus
f(6)=28750e^(-0.12*6)
f(6)=$13,994.13

5 0

2 years ago