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2 years ago

The seventh term of the sequence -2, -6, -10, -14, ... is _____. -26 -24 -22 -20

1 answer:

7 0

We'll it keeps on subtracting by 4 to get each number.

-2,-6,-10,-14,-18,-22,-26.

Negative 26 is your answer. Hope this helped!

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2+6i/2-4i = a + bi What is the value of a? What is the value of b?

Talja [164]

$\dfrac{2+6i}{2-4i}\\\\\\=\dfrac{2(1+3i)}{2(1-2i)}\\\\\\=\dfrac{1+3i}{1-2i}\\\\\\=\dfrac{(1+3i)(1+2i)}{(1-2i)(1+2i)}\\\\\\=\dfrac{1+2i+3i+6i^2}{1-(2i)^2}\\\\\\=\dfrac{1+5i-6}{1+4}~~~~;[i^2=-1]\\\\\\=\dfrac{5i-5}{5}\\\\\\=\dfrac{5(i-1)}5\\\\=i-1\\\\=-1+i\\\\\text{It is in a form of a +bi so,}~ a = -1~ \text{and}~ b = 1$

6 0

2 years ago

An area of 3.5m² is the same as 350000mm². True or false. Justify your answer

Vsevolod [243]

No, because to convert meter to millimeter you'll have to multiply the length value by 1000 which will give you 3500.

3.5 × 1000

= 3500.

have a great day!

3 0

1 year ago

Read 2 more answers

13 of 15

Slav-nsk [51]

Answer:

(√30 - 1, 0)
(-√30 - 1, 0)

Step-by-step explanation:

Making the equation of the parabola :

⇒ y = a(x - h)² + k

⇒ y = (x + 1)² - 17 - 13

⇒ y = (x + 1)² - 30

x-intercepts have y = 0 :

0 = (x + 1)² - 30
(x + 1)² = 30

Taking the square root on each side :

√(x + 1)² = √30
x + 1 = ±√30
x = ±√30 - 1

The x-intercepts are :

(√30 - 1, 0)
(-√30 - 1, 0)

7 0

1 year ago

Ramona is counting the posts between mile markers on the highway. In 1 mile, she counts 33 posts. If the posts are evenly spaced

Naddika [18.5K]

Answer:

160 feet

Step-by-step explanation:

In order to solve this, we need to realize that the mile is being divided into 33 equal parts. Therefore our operation should look like this:

5,280 (the number of feet in 1 mile) / 33

5,280/33=160

The posts are 160 feet apart from each other.

HTH :)

5 0

2 years ago

Carlos figures he will spend on average $780 per month in rent and utilities. his total monthly expenses will total $1,950. He w

nekit [7.7K]

I am not sure...but....
(780/1950) * 360 ( as a circle has 360 degrees, you multiply with 360)

Ans= C 144.

6 0

2 years ago