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3 years ago

What is the value of x? O 6 O 62 O 12 O 122

Mathematics

2 answers:

Alex Ar [27]3 years ago

8 0

X=12. answer choice c or 3.

Taya2010 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

This is what we call a 45-45 traingle

This means that the lengths of the two non-hyptonouse lengths are the same

luckily we're given that it's 6√2

We can then use the pathagaryem theory to solve for the last side

we have

(6√2)²+(6√2)²=x²

Put this into your calculator and get

144= x²

x = 12

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Evaluate the double integral ∬R(2x−y)dA, where R is the region in the first quadrant enclosed by the circle x^2+y^ 2= 4 and the

frez [133]

Answer:

Step-by-step explanation:

We are to integrate the function

$f(x,y) = 2x-y$

over the area enclosed by the circle

$x^2+y^2 =4 \\x=0\\y=x$

Convert into polar coordinates

$dA=rdr dt$

x=rcost and y = rsint

Since the lines are x=0 and y=x we find that t varies from 0 to pi/4

$2x-y =2rsint-rcost$

Double integral will become now

$\int\limits^\frac{\pi}{4} _0 \int\limits^2_0 2rcost -rsint dt\\=\int\limits^\frac{\pi}{4} _0 r^2 cost -r^2sint /2 dt\\= r^2 sint - r^2 cost/2$

(since variables are independent here)

Substitute for r and t

4 sin pi/4 -2 cospi/4

= $\sqrt{2}$

6 0

3 years ago

PLEASE ANSWER WILL MARK BRAINIEST IF CORRECT :)

katrin [286]

1) The set of elements is,

10n where n € {.....,-3,-2,-1,1,2,3....}

Not sure if the 2nd question is complete.

3 0

2 years ago

Twelve less than seven times a number is 16

Anna11 [10]

4 would be the only possible answer bc 7 x 4 = 28 and 28 - 12 = 16.

8 0

3 years ago

Tell whether the lines through the given points are parallel, perpendicular, or neither.

Allisa [31]

Answer:

Neither

Step-by-step explanation:

First find the slope for both lines.

m= slope

Line 1: (y2-y1)/(x2-x1)

2-5/4-6

=-3/-2

m=3/2

Line 2: (y2-y1)/(x2-x1)

8-(-1)/2-(-8)

m=9/10

These lines are neither parallel or perpendicular because they don't have the same slope (parallel lines), and they don't have opposite reciprocal slopes either (perpendicular lines).

8 0

3 years ago

Moe invested $2250 in a savings plan. It will pay him 4.6% compounded quarterly. How much money, to the nearest cent, will he ha

NNADVOKAT [17]

Answer:

Future amount = $3,443 (Approx)

Step-by-step explanation:

Given:

Amount invested(P) = $2,250

Interest rate (r) = 4.6% (Compounded quarterly) = 4.6% / 4 = 0.0115

Number of year (n) = 9 years = 9×4 = 36 quarter

Find:

Future amount = ?

Computation:

$Future\ amount =P(1+r)^n\\\\ Future\ amount =2,250(1+0.0115)^{36}\\\\ Future\ amount =2,250(1.0115)^{36}\\\\ Future\ amount =2,250(1+0.0115)^{36}\\\\Future\ amount =3,442.5$

Future amount = $3,443 (Approx)

8 0

3 years ago