All categories

3 years ago

Express ✓3+ 2 / ✓3 -2 +2✓3 +8 in the form a + b✓3 where a and b are rational numbers

Mathematics

2 answers:

Kamila [148]3 years ago

5 0

Hey
I used a calculator for this
Can u give me a brainliest answer???

harkovskaia [24]3 years ago

4 0

Answer:

ggggggg

Step-by-step explanation:

You might be interested in

draw a line representing the rise and a line representing the run of the line. State the slope of the line in simplest form

Svet_ta [14]

Answer:

Slope is 3/1

Rise is 3

run is 1

hope this helps

5 0

3 years ago

I REALLY NEED HELP RIGHT NOW! T^T<br><br>Applying the 30-60-90 Theorem, Solve this.

jarptica [38.1K]

Answer:

Step-by-step explanation:

take 30 degree as reference angle

using cos rule

cos 30=adjacent/hypotenuse

$\sqrt{3}$ /2=7 $\sqrt{3}$ /y(do cross multiplication)

14 $\sqrt{3$ =y $\sqrt{3}$

14 $\sqrt3}$ / $\sqrt{3}$ =y

14=y

for x

using pythagorsa theorem

H^2=P^2+B^2

14^2=X^2+(7 $\sqrt{3}$ )^2

196=X^2+147

196-147=X^2

49=X^2

$\sqrt{49}$ =X

7=X

6 0

3 years ago

A rectangular lawn is 65 m long and 34 m wide. Over time, people have walked along a diagonal as a shortcut and have created a s

irina [24]

To calculate the length of the diagonal, use the Pythagorean theorem:
c^2 = a^2 + b^2, where c is the diagonal.
c^2 = 65^2 + 34^2
c^2 = 4225 + 1156
c^2 = 5381
c ~ 73.36
To the nearest tenth of a meter, the diagonal has a length of 73.4 m

3 0

3 years ago

Read 2 more answers

Please help me out thank you

ANEK [815]

y = 21

i might be wrong, sorry if i am!!

3 0

3 years ago

Read 2 more answers

The sum of three consecutive terms in an arithmetic sequence is 27, and their product is 585. find the three terms.

sammy [17]

$\text{the three consecutive terms in an arithmetic sequence}\\a;\ a+d;\ a+2d\\\\\text{system of equals}\\\\ \left\{\begin{array}{ccc}a+a+d+a+2d=27\\a(a+d)(a+2d)=585\end{array}\right\\ \left\{\begin{array}{ccc}3a+3d=27&|:3\\a(a+d)(a+2d)=585\end{array}\right\\ \left\{\begin{array}{ccc}a+d=9&\to d=9-a\\a(a+d)(a+2d)=585\end{array}\right\\$
$\text{substitute to the second equation}\\\\a(a+9-a)(a+2(9-a))=585\\\\a(9)(a+18-2a)=585\\9a(18-a)=585\ \ \ |:9\\a(18-a)=65\\18a-a^2=65\ \ \ |\text{change the signs}\\a^2-18a=-65\\a^2-2a\cdot9=-65\ \ \ |+9^2\\\underbrace{a^2-2a\cdot9+9^2}_{(a-b)^2=a^2-2ab+b^2}=-65+9^2\\(a-9)^2=16\to a-9\pm\sqrt{16}\\a-9=-4\ \vee\ a-9=4\ \ \ |+9\\a=5\ \vee\ a=13\\\\d=9-5=4\ \vee\ d=9-13=-4$
$Answer:\ a=5;\ a+d=9; a+2d=13\ vee\ a=13;\ a+d=9;\ a+2d=5$

5 0

3 years ago

Express ✓3+ 2 / ✓3 -2 +2✓3 +8 in the form a + b✓3 where a and b are rational numbers​

Express ✓3+ 2 / ✓3 -2 +2✓3 +8 in the form a + b✓3 where a and b are rational numbers