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2 years ago

Anyone wanna help me with my homework

Mathematics

2 answers:

galina1969 [7]2 years ago

7 0

Assuming you’re simplifying
4) z + 6
5) -4
6) 0
9) 5b + 8

AVprozaik [17]2 years ago

5 0

Answer:

no not rlly

Step-by-step explanation:

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Can somebody help me?

ss7ja [257]

Answer:

1) Pre-image.

Step-by-step explanation:

2) Translation.

5 0

2 years ago

Solve the equation: k^2+5k+13=0

mr_godi [17]

Step-by-step explanation:

k² + 5k + 13 = 0

Using the quadratic formula which is

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

From the question

a = 1 , b = 5 , c = 13

So we have

$k = \frac{ - 5 \pm \sqrt{ {5}^{2} - 4(1)(13) } }{2(1)} \\ = \frac{ - 5 \pm \sqrt{25 - 52} }{2} \\ = \frac{ - 5 \pm \sqrt{ - 27} }{2} \: \: \: \: \: \: \\ = \frac{ - 5 \pm3 \sqrt{3} \: i}{2} \: \: \: \: \: \:$

Separate the solutions

$k_1 = \frac{ - 5 + 3 \sqrt{3} \: i }{2} \: \: \: \: or \\ k_2 = \frac{ - 5 - 3 \sqrt{3} \: i}{2}$

The equation has complex roots

Separate the real and imaginary parts

We have the final answer as

$k_1 = - \frac{5}{2} + \frac{3 \sqrt{3} }{2} \: i \: \: \: \: or \\ k_2 = - \frac{5}{2} - \frac{3 \sqrt{3} }{2} \: i$

Hope this helps you

8 0

2 years ago

Write a numerical expression for the verbal expression.

dmitriy555 [2]

Step-by-step explanation:

The numerical expression is:

(36 + 14) / (2 * 5).

6 0

2 years ago

Read 2 more answers

on the same bus, 1/3 of the French speakers can also speak German. how many people can speak both German and French

Alenkinab [10]

It's easy if you just break it into pieces...

1/3 OF the 4/9 French OF people on the bus (27) also speak German.

Of= Multiply

1/3*4/9*27/1=4 speak French AND German

3 0

3 years ago

Evaluate the following expression when x = 1/2 and y = -3. -4xy

solong [7]

Answer:6

Step-by-step explanation:

-4xy

-4(1/2)(-3)

-4(-1.5)

3 0

2 years ago