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Nutka1998 [239]
3 years ago
11

Evaluate the expression (5 + 2i) - (-3- i) and write the result in the form a +bi.

Mathematics
1 answer:
andre [41]3 years ago
4 0
B because I took the test
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Ben ran 3/10 of a mile. Shelly ran 8/10 of a mile. How many more miles did Shelly run than Ben? A) 11/10 B) 11/20 C) 5/0 D) 5/10
attashe74 [19]

Hello there! Shelly ran D) 5/10 more miles than Ben.

To find the difference between the two runner's distances, subtract the smaller distance from the greater distance.

8/10 - 3/10 = 5/10

Since there is a difference of 5/10, this means Shelly ran 5/1 more miles.

I hope this helps, & have a great rest of your day! :)

8 0
3 years ago
The sequence 2,6,18,54 shows the number of sit-ups Alan can do each day.
jek_recluse [69]

Step-by-step explanation:

this sequence is geometric not arithmetic

HOw we know that ??

when we get a common difference  that must Be equal  

d=6-2=4  not equal to  d=18-6=12

So it is not arithmetic

but when we get the common ratio that also must be equal

r=6/2=18/6=54/18=3    equal

So it is geometric

By using this equation:

a(n)=a(1)*r^(n-1)

and we have a(1)=2 , r=3    

<u>Explicit rule:</u> a(n)=2*(3)^(n-1)

<u>Recursive rule:</u>  a(n)= r * a(n-1)

a(n-1) ⇒ priviuse term

SO:  a(n)= 3 * a(n-1)

For example:

a(3)= 3 * 6 =18

<em>I really hope this helps <3</em>

7 0
3 years ago
Mai is visiting paris to see the eiffel tower. she is 80 feet away when she spots it. To see the top, she has to look up at an a
allochka39001 [22]

Step-by-step explanation:

Use tan relation :

tan85.7=h/80

h=tan85.7×80

h=1063.96ft

7 0
3 years ago
What are two decimals equivalent to 0.02​
Hunter-Best [27]

Answer:

0.020

0.0200

Step-by-step explanation:

Because there's always an imaginary 0 at the end, so there are infiite equivalant answers to this.

<u><em>Hope this helps, and stay safe!! :))))</em></u>

4 0
2 years ago
Write the equation of a horizontal line that goes through the point (-47, 44)
tigry1 [53]
Hello,

In a horizontal line, the y-values are always the same. Therefore, we need to look at the y-value of the point that you have.

It is 44. Therefore, our equation is y = 44. The x-value doesn't matter.

Good luck,
MrEQ


4 0
3 years ago
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