All categories

3 years ago

PLEASE HELP QUICKLY

Mathematics

1 answer:

Advocard [28]3 years ago

8 0

Answer:

TanA= $\frac{36}{27}$ and sinA=36/45

Step-by-step explanation:

Tan= opposite/adjacent

since 36 is opposite of A and 27 is adjancent to 36 your will use tanA= 36/27

Sin= opposite/hypotenuse

36 is opposite of A and 45 is the hypotenuse

You might be interested in

What is 5292cm rounded to the nearest thousandth

krek1111 [17]

the answer to that question is 6000

4 0

3 years ago

The full question is shown below

Tomtit [17]

Answer:

the second one

Step-by-step explanation:

8 0

3 years ago

B) Calcula el tiempo en minutos de un nadador que batio el récord mundial de las

zhenek [66]

Answer:

1.2 minutes

Step-by-step explanation:

60 min = 20 km

? = 0.4 km

? = (0.4 * 60) / 20 = 1.2

7 0

3 years ago

Inportant inpotant ;(

kondor19780726 [428]

Answer:

1 option or last option are the best choices sorry if I'm wrong.

3 0

2 years ago

Read 2 more answers

What is the result of substituting for y in the bottom equation y=x+3 y=x^2+2x-4

8_murik_8 [283]

The solutions are (2.1925, 5.1925) and (-3.1925, -0.1925)

Solution:

Given that,

$y = x + 3 ------- eqn 1\\\\y = x^2 + 2x - 4 ----- eqn 2$

We have to substitute eqn 1 in eqn 2

$x + 3 = x^2 + 2x - 4$

$\mathrm{Switch\:sides}\\\\x^2+2x-4=x+3\\\\\mathrm{Subtract\:}3\mathrm{\:from\:both\:sides}\\\\x^2+2x-4-3=x+3-3\\\\\mathrm{Simplify}\\\\x^2+2x-7=x\\\\\mathrm{Subtract\:}x\mathrm{\:from\:both\:sides}\\\\x^2+2x-7-x=x-x\\\\\mathrm{Simplify}\\\\x^2+x-7=0$

$\mathrm{Solve\:with\:the\:quadratic\:formula}\\\\\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}\\\\x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\mathrm{For\:}\quad a=1,\:b=1,\:c=-7\\\\x =\frac{-1\pm \sqrt{1^2-4\cdot \:1\left(-7\right)}}{2\cdot \:1}$