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3 years ago

Which one is it???? Will mark brainleist

Mathematics

1 answer:

katrin [286]3 years ago

7 0

Answer:

15-3r

Step-by-step explanation:

A expression cannot have a equal sign only = + or -

If you have questions feel free to ask me! :)

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What is the slope of the line that passes through (9,3) and (2,1)

Aneli [31]

Answer:

2/7

Step-by-step explanation:

$slope = \frac{1 - 3}{2 - 9} \\ = \frac{ - 2}{ - 7} \\ = \frac{2}{7}$

3 0

2 years ago

If the sinA=3/5 and the cos=4/5 then what is tan A

Sladkaya [172]

Answer:

tanA = sinA / cosA = 3/5 / 4/5 = 3/4.

5 0

4 years ago

Please help. me with this

telo118 [61]

lol I'm in grade four , sorry I don't know

7 0

4 years ago

Find the difference when the polynomial -5x^2+3x+8 is subtracted from the polynomial 2x^2+4x+1.

geniusboy [140]

The difference is $7x^{2} + 1x-7$ .

Step-by-step explanation:

Step 1:

The polynomial $-5x^{2}+3x+8$ is subtracted from the polynomial $2x^{2} + 4x +1$ .

If we write this as an equation, we get

$(2x^{2} + 4x +1) -(-5x^{2}+3x+8)$ .

To subtract the polynomials, we group up the terms based on their variables.

In this subtraction, there are two variables i.e. $x^{2}$ and $x$ and there is one constant term.

Step 2:

The subtraction of the $x^{2}$ variables; $2x^{2} -(-5x^{2} ) = 2x^{2} +5x^{2} = 7x^{2}$ .

The subtraction of the $x$ variables; $4x - (3x) = 1x$ .

The subtraction of the constants; $1-(8) = -7$ .

So $(2x^{2} + 4x +1) -(-5x^{2}+3x+8) = 7x^{2} + 1x-7$ .

4 0

3 years ago

Whoever answers first gets the brainliest Given : f(x)=-|x+9|

Mamont248 [21]

Answer:

See below.

Step-by-step explanation:

f(x) = -|x + 9|

compared to

f(x) = |x|

has a graph that opens downward in an upside down V shape.

It has been moved 9 units left compared to the graph of f(x) = |x|.

It reflects over the x-axis.

6 0

4 years ago