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PilotLPTM [1.2K]

2 years ago

9

The school chorus has 52 students, which represents 26% of the seventh graders. How many total students are in the seventh grade

?
Plzzzz help me

1 answer:

Sedaia [141]2 years ago

7 0

Answer:

there are 200 students in the 7th grade.

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Find two complex numbers that have a sum of i10 a different of -4and a product of -29

lianna [129]

<h2>-2+5i and 2+5i</h2>

Step-by-step explanation:

Let the complex numbers be $a+ib\textrm{ and }c+id$ .

Given, sum is $10i$ , difference is $-4$ and product is $-29$ .

$(a+c)+i(b+d)=10i$ ⇒ $a+c=0,b+d=10$

$(a-c)+i(b-d)=-4$ ⇒ $a-c=-4,b-d=0$

$a=-2,c=2,b=5,d=5$

$(a+ib)(c+id)=(-2+5i)(2+5i)=-4-25=-29$

Hence, all three equations are consistent yielding the complex numbers $-2+5i\textrm{ and }2+5i$ .

8 0

2 years ago

1 − 3 10 . Write the answer as a fraction

Brilliant_brown [7]

Answer:

7/10

Step-by-step explanation:

7 at the top, 10 at the bottom

8 0

3 years ago

Can someone can help me

frozen [14]

Sure with what? u should have asked ur question

3 0

2 years ago

Read 2 more answers

Michaela is competing in a race and what she felt the runs and rides a bicycle she runs 5 km in 0.5 hours and ride her bicycle 2

Nat2105 [25]

Answer:

10

Step-by-step explanation:

if she runs 5 km in half an hour, she runs 10 in a whole hour.

7 0

3 years ago

The lengths of two sides of a triangle are given.

azamat

Answer:

Range = 5 - 29

Step-by-step explanation:

a + b > c

a+c > b

c+b > a

so

17+ 12 > c ,,,,,,,,,,,,,,,,,,,,,,,,,,,, so it should be lesser than 17+12 which is 29

17 +c > 12 ,,,,,,,,,,,,,,,,,,,,,,,,, and it should be greater than 17- 12 = 5

c+12 > 17 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, same here, it should be greater than 17- 12 = 5

So the range is ,

17 + 12

to

17-12

whcih is - (5 to 29)

I hope I am right!!!

3 0

2 years ago