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3 years ago

BRAINLIESTT ASAP! PLEASE HELP ME :)

Mathematics

2 answers:

taurus [48]3 years ago

8 0

Answer:

The answer is they are congruent.

Step-by-step explanation:

They have two congruent sides and share one side, so they are congruent by SSS.

I hope this helps! :)

olasank [31]3 years ago

6 0

We know the triangles are congruent because:

ΔDBC ≅ ΔABC (SSS Postulate)
CB is congruent to BC (Reflexive Property)
AB is congruent to DB
DC is congruent to AC

The congruency statement is in bold.

Best of Luck!

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HELP WILL GIVE BRAINLIEST FOR ANSWER QUICKLY PLEASE HELP

Helen [10]

Answer:

We have sinθ = 12/13

The method here is to figure out the value of θ

Using a calculator sin^(-1)(12/13) =67.38°

67.38° is in quadrant 1 so we must substract 67.38° from 180° wich is π

180-67.38= 112.61° ⇒ θ= 112.61°

Now time to calculate cos2θ and cosθ using a calculator

cosθ = -5/13
cos2θ = -0.7

The values we got make sense since θ is in quadrant 2 and 2θ in quadrant 3

5 0

3 years ago

When 14 is increased by 8 each time which number is closest to 100

MrRa [10]

The answer is 94 because if you add 8 more it would be 102. 14 + (8x10)

6 0

2 years ago

A toy manufacturer produces the same toy in 4 different colors: red, blue, green, and yellow. The toy manufacturer has 5 product

BigorU [14]

<span>The correct answer:

What you do is:

5+5+4+2 which gives you 16

And 12 that are not green,

So,

</span> $\frac{12}{16} = \frac{3}{4}$

<span>A toy has an equal chance of traveling down any production line. " makes no sense to me</span>

4 0

3 years ago

A kite flying in the air has a 78-string attached to it, and the string is pulled taut. The angle of elevation of the kite is 52

Basile [38]

Answer:

sine 52 degrees = height / 78

height = 78 * sine 52

height = 78 * 0.78801

height = 61.46478 feet

rounded to nearest tenth 61.5 feet

Step-by-step explanation:

5 0

3 years ago

Find all points on the circle (x^2) + (y^2) = 676 where the slope is 5/12

borishaifa [10]

Implicit defferentation

remember that dy/dx y= dy/dx

so
take derivitive of both sides
$2x+2y \space\ \frac{dy}{dx}=0$
solve for $\frac{dy}{dx}$
minus 2x both sides
$2y \space\ \frac{dy}{dx}=-2x$
divide both sides by 2y
$\frac{dy}{dx}=\frac{-2x}{2y}$
$\frac{dy}{dx}=\frac{-x}{y}$

when is the slope equal to $\frac{5}{12}$
solve for $\frac{dy}{dx}=\frac{5}{12}$
$\frac{dy}{dx}=\frac{5}{12}$
$\frac{5}{12}=\frac{-x}{y}$
$5y=-12x$
$y=\frac{-12}{5}x$
find where the circle and this line intersects

substitute $\frac{-12}{5}x$ for y
$x^2+(\frac{-12}{5}x)^2=676$
$x^2+\frac{144}{25}x^2=676$
$\frac{25}{25}x^2+\frac{144}{25}x^2=676$
$\frac{169}{25}x^2=676$
times both sides by $\frac{25}{169}$
$x^2=100$
sqrt both sides, take positive and negative roots
x=+/-10

sub back

$y=\frac{-12}{5}x$
$y=(\frac{-12}{5})(10) \space\ or \space\ (\frac{-12}{5})(-10)$
$y=\frac{-120}{5} \space\ or \space\ \frac{120}{5}$
$y=-24 \space\ or \space\ 24$

the points are (10,-24) and (-10,24)

8 0

3 years ago