3 years ago

Evaluate -8y+x5 when x =2 and y= -3

Mathematics

2 answers:

kkurt [141]3 years ago

6 0

Answer:

Step-by-step explanation:

NemiM [27]3 years ago

3 0

Answer:

-24+-10 = -34

Explanation:

Any time when the letter and number together and says what is letter equal you must multiply!

For example: a=5

There is a equation and it says what is: 4a
It is the same thing as multiply so what you do is 4x5 since a is equal to 5 then boom, it’s that easy you’re answer is 20.

I just wrote this if you didn’t understand much about this topic, and I hope I helped! Enjoy! (:

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3 years ago

Find all points having an x-coordinate of 2 whose distance from the point (-1,-2) is 5

xxTIMURxx [149]

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\
5=\sqrt{(-1-2)^2+(-2-y_1)^2}\\
\sqrt{9+4+4y_1+y_1^2}=5\\
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\boxed{(2,2),(-6,2)}

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3 0

3 years ago

Two rectangles, A and B are in proportion in ihe ratio 3 : 5. If the area of Rectangle B is 80 cm?, find the area of Rectangle A

butalik [34]

Answer:

the area of rectangle A is 133.33 sq cm

Step-by-step explanation:

let us suppose area of rectangle A be x....hence we get ,

3:5=80/x

or,3/5=80/x

or,3x=80*5

or,x=400/3

x=133.3.3

7 0

3 years ago