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shutvik [7]
3 years ago
15

Hellppp meeeee PLEASEEEEE...

Mathematics
2 answers:
jonny [76]3 years ago
7 0

Answer:

Step-by-step explanation:

he is prob right.

bonufazy [111]3 years ago
3 0

Step-by-step explanation:

9.2 < 3x = 21.25

3x = 21.25 - 9.2

3x = 12.05

x = 18.2

You might be interested in
Simply the expression: 52 + 53 - 54 A) -475 B) -350 C) -125 D) 5
stira [4]
<span>52 + 53 - 54 = 51

</span>None of them is the answer
3 0
3 years ago
Suppose m = 2 + 6i, and | m + n | = 3√10, where n is a complex number.
Ksju [112]

Answer: a) √50

b) n = 1 + 7i

Step-by-step explanation:

first, the modulus of a complex number z = a + bi is

IzI = √(a^2 + b^2)  

The fact that n is complex does not mean that n doesn't has a real part, so we must write our numbers as:

m = 2 + 6i

n = a  + bi

Im + nI = 3√10

Im + n I = √(a^2 + b^2 + 2^2 + 6^2)= 3√10

            = √(a^2 + b^2 + 40) = 3√10

             a^2 + b^2 + 40 = 3^2*10 = 9*10 = 90

             a^2 + b^2 = 90 - 40 = 50

            √(a^2 + b^2 ) = InI = √50

The modulus of n must be equal to the square root of 50.

now we can find any values a and b such a^2 + b^2 = 50.

for example, a = 1 and b = 7

1^2 + 7^2 = 1 + 49  = 50

Then a possible value for n is:

n = 1 + 7i

6 0
3 years ago
Si sumamos el cuadrado de un número más el cuadruple del siguiente resulta 225 ¿De que número se trata?
Talja [164]

Answer:

What does it say in english

Step-by-step explanation:

ill answer it in comments if you tell me what it says in english

5 0
3 years ago
PLEASEEEEE HELP WITH THIS??!!!!<br><br> According to the diagram, what is the altitude?
snow_tiger [21]
X^2 + 400^2 = 500^2
solve for x.
x^2=25,000-16,000
x^2= 9,000
x=
x =  \sqrt{9000}
x= 94.86m
5 0
3 years ago
Read 2 more answers
Help me for brainlist
igor_vitrenko [27]

Answer:

1. g. $0.10 per square inch

2. c. $0.08 per square inch

3. f. $10

4. m. $8

5. h. 79 in²

6. j. 113 in²

Step-by-step explanation:

1. A = πr²

   r = diameter ÷ 2 = 10 ÷ 2 = 5

   A = π(5)² = 25π in² ≈ 78.53981

   $8.00/25π = $0.10 per square inch

2. A = πr²

   r = diameter ÷ 2 = 12 ÷ 2 = 6

   A = π(6)² = 36π in² ≈ 113.0973355

   $10.00/36π = 0.088419 = $0.08 per square inch

3. information/answer was provided

4. information/answer was provided

5. A = πr²

   r = diameter ÷ 2 = 10 ÷ 2 = 5

   A = π(5)² = 25π in² ≈ 79 in²

6. A = πr²

   r = diameter ÷ 2 = 12 ÷ 2 = 6

   A = π(6)² = 36π in² ≈ 113 in²

5 0
2 years ago
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