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3 years ago

Please help thanks very much

Mathematics

1 answer:

olchik [2.2K]3 years ago

6 0

A)
sinA = 8√3 / 16 = √3 / 2

answer is B
√3 / 2

B) It's 30 60 90 right triangle
so <B is 30

answer is A
m<B = 30

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Given f(x) = 2x - 1 and g(x) = x^2 + 3x - 1, find f(x) + g(x), f(x) - g(x), f(x) • g(x), and (f/g)(x)

lions [1.4K]

$\bf \begin{cases}
f(x)=2x-1\\
g(x)=x^2+3x-1
\end{cases}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
f(x)+g(x)\implies (2x-1)+(x^2+3x-1)\implies 2x+3x-1-1+x^2
\\\\\\
x^2+5x-2
\\\\[-0.35em]
~\dotfill$

$\bf f(x)-g(x)\implies (2x-1)-(x^2+3x-1)\implies 2x-1-x^2-3x+1
\\\\\\
-x^2-x
\\\\[-0.35em]
~\dotfill\\\\
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\\\\\\
\stackrel{2x(x^2+3x-1)}{2x^3+6x^2-2x}~~+~~\stackrel{-1(x^2+3x-1)}{(-x^2-3x+1)}\implies 2x^3+5x^2-5x+1
\\\\[-0.35em]
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the division doesn't simplify any further.

5 0

2 years ago

Complete the equation of the line through (−10,3) (−8,−8). Use exact numbers. y=

fomenos

Answer:

y = -11/2x - 52

Step-by-step explanation:

Now follow the equation for slope: m = change in y / change in x.

$\frac{y2-y1}{x2-x1}$

$\frac{-8-3}{-8--10}$

$\frac{-11}{2}$

The slope is -11/2. m=-11/2

Use slope-intercept form:

y=mx+b

Plug in a point and the slope:

-8 = (-11/2)(-8) + b

-8 = 44 + b

b = -52

<u></u>

8 0

2 years ago

I really need help with this:)

PilotLPTM [1.2K]

Answer:

I think it is b because dimension are measurable extent

4 0

2 years ago

Read 2 more answers

una pizzeria hace pizzas de varios tamaños y las vende en cajas hexagonales de 39 cm de lado y 4.7 cm de alto ¿que cantidad de c

Makovka662 [10]

Area de la base es un hexagono: Nota: asumiendo que 39 cm son el lado de un hexagono. Menuda pizza.

A = 3*sqrt(3)/2*a^2 = 3*sqrt(3)/2*39^2 = 3951.67391746839972 cm^2

Hay dos base y tapa, doble:

7903.34783493679944 cm^2

Luego los lados verticales:

6 * 39 * 4.7 = 1099.8 cm^2

TOtal = 9003.14783 = 9003.147 cm^2 = 9003.15 cm^2

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3 years ago

Which of the following best describes the slope of the line below?

strojnjashka [21]

Answer:

D. Undefined

Step-by-step explanation:

It is a vertical line so it has no slope.

5 0

2 years ago

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