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3 years ago

I need. Help 12 points

Mathematics

2 answers:

MariettaO [177]3 years ago

8 0

The value of The digit 4 is four ones or 4

viktelen [127]3 years ago

4 0

The answer is: C. 24

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What is the remainder if f(x) = x4 – 5x2 - 6x - 10 is divided by x - 3?

bezimeni [28]

Answer:-46

Step-by-step explanation: just took test

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3 years ago

20 POINTS! Please help, best answer will recessive brainliest answer points as well as 5 stars and a thank you. :)

valentina_108 [34]

Answer:

(3) Diagonals are perpendicular

Step-by-step explanation:

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3 years ago

List the sides of the triangle in order from shortest to longest.

katen-ka-za [31]

Answer:

Angle M = 120 degrees

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Step-by-step explanation:

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3 years ago

Read 2 more answers

(-1,2) and (3,4) what's the midpoint ? Show work please.

babymother [125]

The midpoint formula is:
$( \frac{x1 + x2}{2} , \frac{y1+y2}{2} )$
Insert your coordinates.
$(\frac{-1+3}{2}, \frac{2+4}{2}) = (\frac{2}{2}, \frac{6}{2} )$
Simplify.
$(1,3)$

7 0

3 years ago

Prove that sin²∅+cos²∅=1 ?

sasho [114]

Step-by-step explanation:

Let ABC be a right angled triangle where there's a right angle in B . Let the measure of the angle BAC be ∅. So,

$\sin(∅) = \frac{BC}{AC}$

$= > {\sin}^{2}∅ = \frac{ {BC}^{2} }{ {AC}^{2} }$

Also,

$\cos(∅) = \frac{AB}{AC}$

$= > { \cos}^{2}∅ = \frac{ {AB}^{2} }{ {AC}^{2} }$

Now adding the values of sin^2∅& cos^2∅,

${ \sin}^{2} ∅ + { \cos}^{2} ∅ = \frac{ {BC}^{2} }{ {AC}^{2} } + \frac{ {AB}^{2} }{ {AC}^{2} }$

$= > { \sin}^{2} ∅ + { \cos}^{2} ∅ = \frac{ {AB}^{2} + {BC}^{2} }{ {AC}^{2} }$

But we know that

${AC}^{2} = {AB}^{2} + {BC}^{2}$ by applying Pythagorean Theorem

So ,

$= > { \sin}^{2} ∅ + { \cos}^{2} ∅ = \frac{ {AC}^{2} }{ {AC}^{2} } = 1$

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3 years ago