MATHEMATICS HIGH SCHOOL

Please answer ASAP! I need the answer put very clearly- thanks :)

Answers

Answer 1

Answer:

Answer:

2.6875 or 2.6

Step-by-step explanation:

2.15÷.8=2.6875

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Which of the following is a solution of 4x2 = − 9x − 4?
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PLEASE HELP! 15 POINTS Order the expressions from greatest to least coefficient of x. Place the expression with the greatest coefficient of x at the top. 12+4x, 13x, 15-x, 14-7x----------My answer: 13x, 14-7x, 12+4x, 15-x

Can someone please help me with number one. I’ll give the right answer the brainliest.

Answers

Answer:

1 yes 2 no 3 yes

Step-by-step explanation:

Find cotx if sinx cotx cscx = sqrt2

Answers

Answer:

$cot(x)=\sqrt2$

Step-by-step explanation:

$sin(x)cot(x)csc(x) = \sqrt2$ , csc(x) = 1/sin(x)

$sin(x)cot(x)((1)/(sin(x))) = \sqrt2$

$cot(x)=\sqrt2$

Prove: AABStep
Statement
Reason
Given
1
ABCD is a parallelogram
ABCD
Select a Reason!!
2
A
B
N

Answers

Hmmm… I wish I could help you with this one, sorry

I need help with this please help me !

Answers

Answer:

The value of x is 13.5 units.

Step-by-step explanation:

You can also apply this formula :

$(a)/( \sin(A) ) = (b)/( \sin(B)) = (c)/( \sin(C) )$

So for this question :

$(x)/( \sin(34) ) = (11)/( \sin(27) )$

$x = (11)/( \sin(27) ) * \sin(34)$

$x = 13.5 \: units \: (near.tenth)$

Point P(3, 9) in the coordinate plane is rotated 90 degrees counterclockwise about the origin. What are the coordinates of its image?Please show all work and not just the answers.

Answers

Answer:

P'(-9, 3)

Step-by-step explanation:

The transformation for rotation counterclockwise about the origin by some angle α will be ...

(x, y) ⇒ (x·cos(α) -y·sin(α), x·sin(α) +y·cos(α))

When the angle is α = 90°, this reduces to ...

(x, y) ⇒ (-y, x)

You have (x, y) = (3, 9), so the image point is P'(-9, 3).

Additional comment

The "work" is applying the right sign and choosing the right coordinate to fill in the values (-y, x). I find it easier to look up the transformations for ±90° and 180°, rather than try to derive them from first principles every time. Your text may have a list:

90° CCW or 270° CW: (x, y) ⇒ (-y, x)
90° CW or 270° CCW: (x, y) ⇒ (y, -x)
180°: (x, y) ⇒ (-x, -y)

The sales tax in a city is 8.8% and an item costs $63 before tax How much tax would you pay on that item?

Answers

8.8/100 x $63
=$5.544

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