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3 years ago

Help please!! This is timed. I’ll give brainliest also!

Mathematics

2 answers:

natita [175]3 years ago

7 0

Answer: Relation 1 Function Relation 2 Not a function Realtion 3 Not a function Relation 4 Not a function

Step-by-step explanation: Ok this is a right answer

Arada [10]3 years ago

5 0

1.is a function 2.is a function 3.not a function 4.not a function

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Select the correct answer.

wolverine [178]

Answer:

A. -4 + 6i

Step-by-step explanation:

Cause as we can see... (-2 - 2i)+(10-4i)

We get when we multiply 2x2=4i

Next 10-4=6

Hope it helped u

7 0

3 years ago

Can't figure it out!!

Zanzabum

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------\\\\
f(x)= \cfrac{1}{x} \qquad 
\begin{cases}
x_1=2\\
x_2=b
\end{cases}\implies \cfrac{f(b)-f(2)}{b-2}=-\cfrac{1}{10}
\\\\\\
\cfrac{\frac{1}{b}-\frac{1}{2}}{b-2}=-\cfrac{1}{10}\implies 
\cfrac{\frac{2-b}{2b}}{b-2}=-\cfrac{1}{10}\implies \cfrac{2-b}{2b}=-\cfrac{b-2}{10}
\\\\\\
$

$\bf \cfrac{2-b}{2b}=\cfrac{2-b}{10}\implies 20-10b=4b-2b^2\impliedby cross-multiplying
\\\\\\
2b^2-4b-10b+20=0\implies 2b^2-14b+20=0
\\\\\\
b^2-7b+10=0\implies 
(b-2)(b-5)=0\implies b=
\begin{cases}
\boxed{5}\\
2
\end{cases}$

8 0

3 years ago

Answer the question in the picture. If its right I’ll mark brainliest

Kisachek [45]

Answer:

The answer is c!

Step-by-step explanation:

5 0

3 years ago

Triangle S R Q is shown. Angle S R Q is a right angle. An altitude is drawn from point R to point T on side S Q to form a right

juin [17]

Answer:

RT = 12 units

Step-by-step explanation:

From the figure attached,

ΔSRQ is right triangle.

m∠R = 90°

An altitude has been constructed from point T to side SQ.

m∠RTQ = 90°

By applying geometric mean theorem in triangle SRQ,

$\frac{\text{RT}}{\text{ST}}=\frac{\text{TQ}}{\text{RT}}$

$\frac{x}{9}=\frac{16}{x}$

x² = 16 × 9

x² = 144

x = √144

x = 12

Therefore, length of altitude RT is 12 units.

5 0

3 years ago

I dont know what a complementary angle is, can someone help me with this quistion please?

Allisa [31]

Answer:

A, complementary angles sum up to 90°

8 0

3 years ago