All categories

2 years ago

If p= 3 and q= -3, find the value of:

Mathematics

1 answer:

Finger [1]2 years ago

5 0

2(3)+(-3)-3(3)(-3)=6-3+27=30

You might be interested in

-2(csc2θ - cot2θ)<br> - 1 <br> -2<br> -3<br> -1

Lorico [155]

Answer:

- 2

Step-by-step explanation:

$- 2( { \csc}^{2} \theta \: - {cot}^{2} \theta) \\ = - 2(1) \\ = - 2$

8 0

3 years ago

Lydia received her salary on Friday. She spent one-half of her salary on rent and then spent $168 on her electric and water bill

inysia [295]

Answer:

B. $466

How:

You would have to add up all KNOWN expense that Lydia made and then the money the she spent on rent would be an exact replica of that.

7 0

3 years ago

Find the midpoint of NP⎯⎯⎯⎯⎯ given N(2a, 2b) and P(2a, 0).

geniusboy [140]

Answer:

(2a, b )

Step-by-step explanation:

Given the endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is

[ $\frac{1}{2}$ (x₁ + x₂ ), $\frac{1}{2}$ (y₁ + y₂ ) ]

Here (x₁, y₁ ) = N(2a, 2b) and (x₂, y₂ ) = P(2a, 0), thus

midpoint = [ $\frac{1}{2}$ (2a + 2a), $\frac{1}{2}$ (2b + 0 ) ] = (2a, b )

4 0

3 years ago

Solve for x in the equation x2-8x+41=0

Alinara [238K]

Answer:

d) 4 ± 5i

Step-by-step explanation:

Here we have to use the quadratic formula.

x = $\frac{-b +/- \sqrt{b^2 - 4ac} }{2a}$

In the given equation x^2 - 8x + 41 = 0, a =1, b = -8 and c = 41

Now plug in the given values in the above formula, we get

x = $\frac{-(-8) +/- \sqrt{(-8)^2 - 4*1*41} }{2*1}$

Simplifying the above, we get

x = $\frac{8 +/- \sqrt{64 - 164} }{2}$

x = $\frac{8 +/- \sqrt{-100} }{2}$

[√-100 = √-1 *√100 = i*10 = 10i] because the value of √-1 = i]

x = (8 ± 10i )/2

Now dividing by 2, we get

x = 4 ± 5i

The answer is d) 4 ± 5i

Hope you will understand the concept.

Thank you.

3 0

2 years ago

Read 2 more answers

Help ASAP please hmmmm

navik [9.2K]

Answer:

D. The Number 0.55 Is A Rational Number Because It Can Be Written As The Fraction 11/20.

Step-by-step explanation:

8 0

2 years ago