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Dafna1 [17]
3 years ago
13

What's (6+5i)(6-5i) using the foil method

Mathematics
1 answer:
I am Lyosha [343]3 years ago
8 0

Answer:

Step-by-step explanation:

Remember:\\(a+b)(a-b)=a^2-b^2\\\\(6+5i)(6-5i)=6^2-(5i)^2=36-(-1)*25=36+25=61\\

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what is the distance from the origin to the midpoint of the line segment defined by the endpoints (-4, 0) and (2, -2)?
Zielflug [23.3K]
Answer. I hope it helps you !!

5 0
3 years ago
Evaluate the geometric series. Please help me out!!!
vredina [299]

Answer:

- 1364

Step-by-step explanation:

The n th term of a geometric series is

a_{n} = a(r)^{n-1}

where a is the first term and r the common ratio

4(-2)^{n-1} ← is an n th term

with a = 4 and r = - 2

The sum to n terms of a geometric series is

S_{n} = \frac{a(r^{n}-1) }{r-1}, thus

S_{10} = \frac{4((-2)^{10}-1) }{-2-1}

      = \frac{4(1024-1)}{-2-1}

      = \frac{4(1023)}{-3}

      = \frac{4092}{-3}

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6 0
3 years ago
3z+(-4)=-1 how would you find your answer to what is z?
Masja [62]

Answer:

z=1

Step-by-step explanation:

3z+(-4)=-1

Add 4 to each side

3z+(-4) +4=-1+4

3z = 3

Divide each side by 3

3z/3 = 3/3

z=1

5 0
3 years ago
Read 2 more answers
4<br> 1 point<br> 6.6<br> B<br> 11<br> 13<br> Determine is AB is a<br> tangent line
nadya68 [22]
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3 years ago
El perímetro es 28cm y el ancho es de 6 cm cuál es al alto
Snowcat [4.5K]

Answer:

El mayor lado del rectángulo es de 10 cm

Explicación paso a paso:

Perímetro de un rectángulo: es el doble de la suma de sus lados

P = 2 (a+b)

a: es el ancho del rectángulo

b: es el largo del rectángulo

Uno de los lados es 6cm mas que el otro lado

b= a + 6 cm

Sustituimos en la ecuación de perímetro:

28cm /2 = a+a+6cm

14cm = 2a +6 cm

14cm-6cm = 2a

a = 4 cm

b = 10cm

El mayor lado del rectángulo es de 10 cm

brainly.lat/tarea/2483694

Step-by-step explanation:

5 0
3 years ago
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