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Vlad1618 [11]
3 years ago
9

(3 + 4i) + (5 − 2i) (2 points) −2 + 6i 2 − 2i 7 + 3i 8 + 2i

Mathematics
1 answer:
k0ka [10]3 years ago
6 0

Answer:

8+2i

Step-by-step explanation:

Combine like terms

3+5=8

4i-2i=2i

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Ritz can eat 8 apples in 15 minutes.how long does it take ritz to eat 16 apples at the same rate.
zhannawk [14.2K]
We can answer the problem using a rule of three, simple, direct proportion and also using fractions. First the rule of three:
8 apples ------> 15 min
16 apples ----> x

x = (16)(15)/8
x = 30
therefore he can eat 16 apples in 39 minutes.

We can also equate fractions like so:
8/15 = 16/y
and solve for y:
y = 15*16/8
y = 30
the same answer
7 0
4 years ago
Read 2 more answers
A little help please. THANK YOU
Natasha2012 [34]

I think it is D) because the 2x is really the x-axis. But im not sure... A and B are crossed out bc there negatives. Sooo.. its C or D.

7 0
4 years ago
jon has to pay $7 admission for the skating rink and $1.50 per hour to rent the rollerblades. how can he skate for $19?
schepotkina [342]

H=Hours he an skate; T=total cost

T=$7.00+($1.50/hr)H

T-$7.00=($1.50/hr)H

(T-$7.00)/($1.50/hr)=H

For T=$19:

($19.00-$7.00)/($1.50/hr)=H

$12.00/($1.50/hr)=H

8hrs=H

ANSWER: Jon can skate 8 hours for $19.00.

Hope this helps!

4 0
3 years ago
4.
Zigmanuir [339]

Answer:  The answer would be letter A

slope (m)=-9/2

intercept on x-axis=56/9

intercept on y-axis=28

Explanation:

18x+4y=112

(18x)/112+(4y)/112=1

(x/1)/(56/9)+y/28=1

intercept on x-axis=56/9

intercept on y-axis=28

now, 4y=-18x+112

y=-9/2x+28

so, slope (m)=-9/2

Step-by-step explanation:

Move all terms that don't contain  y  to the right side and solve.

y =  28  −  (9 x) /(2)

7 0
3 years ago
Most of the geometry concepts and theorems that are learned in high school today were first discovered and proved by mathematici
sweet-ann [11.9K]

Answer:

self realization, confidence

Step-by-step explanation:

also these concepts are used in real life jobs but most people think otherwise because you dont use them in a grocery store... yeah people think that, but also its so these concepts that were figured out thousands of years ago dont fade away with the newer generations

8 0
3 years ago
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