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3 years ago

Which matrix represents the system of equations shown below? 8x-3y = 9 2x + 5y = -7

Mathematics

2 answers:

Pie3 years ago

5 0

Answer:

The correct answer is D.

Step-by-step explanation:

hope it works out !!

kirza4 [7]3 years ago

3 0

Answer:

its A

Step-by-step explanation:

i just did it

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The answer please! I mean Ik it’s simple but I’m just not clever

wel

Answer:

596.9 cm^2

Step-by-step explanation:

The surface area of a cylinder is $SA=2\pi rh+2\pi r^2$ where $r$ is the radius of the base of the cylinder and $h$ is the height of the cylinder.

So, the surface area of the cylinder is:

$SA=2\pi rh+2\pi r^2$

$SA=2\pi (5)(14)+2\pi (5)^2$

$SA=2\pi(70)+2\pi(25)$

$SA=2\pi(70+25)$

$SA=2\pi(95)$

$SA=190\pi$

$SA\approx596.9$

7 0

3 years ago

Read 2 more answers

Tony needs one gallon of orange juice to make punch for a party. Gallons of orange juice cost $3.99 each. Quarts of orange juice

Travka [436]

Answer

C because 2 quarts make's one gallon

Step-by-step explanation:

5 0

3 years ago

Read The question and Then give Me The answer for number 20

N76 [4]

The second option, 7 rolls of quarters and 4 rolls of dimes.

7*10=70
4*5=20
70+20=90

7 0

3 years ago

A passenger jet flies at an average speed of 548 miles per hour. At that speed, how many miles does the plane travel in 4 hours?

marishachu [46]

The plane travels 2192 miles.

You’re multiplying 548 x 4 because the plane travels 548 an hour.

4 0

3 years ago

X (year)| y ($ in billions)

Bingel [31]

Rate of change is also another name for the slope so in this case, the question is asking you for the slope.

How can we find the slope?
The formula for slope is y2-y1/x2-x1

Now let's plug in for the year 1980 and 1990.

239-120/1990-1980
= 119/10

Slope is 119/10.

3 0

3 years ago