MATHEMATICS HIGH SCHOOL

The picture is above I’ll mark as brainliest.

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

P=(8*2)+(3*2)

16+6=22

Answer 2

Answer:

Answer:

22 inches

Step-by-step explanation:

Perimeter = 8 + 3 + 8 + 3

= 22 inches

Related Questions

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What is 5 1/4 ➗ 2 2/7
Emily is three years older than twice her sister mary’s age. the sum of their ages is less than 30. let x represent mary's age. which inequality represents mary’s possible age? responses •0
Simplify. |–4.1| = Thanks!

A hat costs $25. Tax is 8%. How much is the tax on the hat?

Answers

I'm pretty sure 8% tax would be equivilant too 27

$25.00 * 0.08 = 2

There you go sales tax is 2.00 :)

Find the exact value of tan 30 degrees w/o calculator

Answers

Here is a mantra that I learned in Geometry class in high school. We were
all very excited, as angles had been invented only a few years earlier:

In a 30-60 right triangle ...
the side opposite the 30 is half the hypotenuse
the side opposite the 60 is half the hypotenuse times the square root of three.

So the tangent of the 30 would be (opposite) / (adjacent) = (1/2h) / (1/2h√3) .

That's (1)/(√3) or (√3)/(3) .

$Look\ at\ the\ picture.\n\ntan30^o=((a)/(2))/((a\sqrt3)/(2))=(a)/(2):(a\sqrt3)/(2)=(a)/(2)\cdot(2)/(a\sqrt3)=(1)/(\sqrt3)\cdot(\sqrt3)/(\sqrt3)=(\sqrt3)/(3)$

For which system of equations is (2, 2) a solution? A.–3x + 3y = 0
x + 6y = 10B.–2x + 5y = –6
4x – 2y = 4C.5x – 2y = –6
3x – 4y = 2D.2x + 3y = 10
4x + 5y = 18

Answers

$A.)\n\n-3x + 3y = 0\nx + 6y = 10 \ / *3\n\n-3x + 3y = 0\n3x + 18y = 30\n+------\n21y =30 \ / :21\n \ny=(30)/(21)=(10)/(7)\n\nnot \ true$

$B.)\n\n-2x + 5y = -6 \ / \cdot 2\n4x - 2y = 4\n \n-4x + 10y = -12 \n4x - 2y = 4 \n+-------- \n8y=-8\ /:8\n \ny=-1\n \n not \ true$

$C.\n\n5x - 2y = -6 \ / \cdot 2\n3x - 4y = 2 \n \n 10x - 4y = -12 \n 3x- 4y = 2\n+------\n13x=-11 \ / :13\n \nx=-(11)/(13)\n\n not \ true$

$D.)\n\n2x + 3y = 10\ / \cdot (-2)\n4x + 5y = 18\n\n-4x -6y =-20\n4x + 5y = 18\n+-------\n-y = -2 \ / \cdot (-1)\n \ny=2$

$2x + 3*2 = 10\n \n2x=10-6 \n \n2x=4 \ / :2 \n \n x=2 \n \n true$

$x=2\ \ \ and\ \ \ y=2\n\nA.\ \ \ \ \ \ x + 6y = 2+6\cdot2=2+12=14 \neq 10\n\nB.\ \ \ \ \ -2x + 5y =-2\cdot2+5\cdot2=-4+10=6 \neq -6\n\nC.\ \ \ \ \ \ \ 5x-2y =5\cdot2-2\cdot2=10-4=6 \neq -6\n\nD.\ \ \ \ \ \ \ 2x + 3y =2\cdot2+3\cdot2=4+3= 10\nand\ \ \ \ \ \ 4x + 5y = 4\cdot2+5\cdot2=8+10=18\n\nAns.\ (2,\ 2)\ is\ a\ solution\ for\ system \ D$

A+b+c+d=770
a+b=c+d
a-b=49
c-d=211
Find numbers.

Answers

a+b = c+d
a+b = 770/2 ( a+b+c+d = 770)
a+b = 385
c+d = 385

a+b+a-b = 385+49
2a = 434
a = 434/2
a = 217
a-b=49
217-49= b
b = 168

c+d+c-d = 385+211
2c = 596
c = 596/2
c = 298

c-d = 211
c-211= d
298-211 = d
d = 87

Therefore, a=217, b=168, c=298, d=87

Find the 15th term in the geometric sequence below.20, 10, 5, 2.5, . . .
A.-25/4,096

B.-5/4,096

C.5/4,096

D.25/4,096

Answers

geo sequence
$a_n=a_1r^(n-1)$
an=nth term
a1=first term
r=common ratio
n=which term

10/20=1/2
r=1/2
20=a1

$a_(15)=20(1/2)^(15-1)$ =
$a_(15)=20(1/2)^(14)$ =
$a_(15)=20( (1)/(16384) )$ =
$a_(15)= (20)/(16384)$ =
$a_(15)= (5)/(4096)$

C is answer

(-5)-6 find the different

Answers

Answer:

-11

Step-by-step explanation:

−5−6

=−5−6

=−5+−6

=−11

Hope this Helps!

Other Questions

A cold front changes the temperature by -3 F each day. If the temperature started at 0 F, what will the temperature be after 5 days?

On a Saturday, the ratio of the amount of water used by household A to the amount of water use by household B was 13 : 5. Household A used 260 gallons of water for that day. Find the total amount of water used by the two household on that Saturday.

1) Solve by using the perfect squares method. x2 + 8x + 16 = 0 2) Solve. x2 – 5x – 6 = 0 3) What value should be added to the expression to create a perfect square? x2 – 20x 4) Solve. x2 + 8x – 8 = 0 5) Solve: 2x2 + 12x = 0 6) Solve each problem by using the quadratic formula. Write solutions in simplest radical form. 2x2 – 2x – 1 = 0 7) Calculate the discriminant. x2 – x + 2 = 0 8) Calculate the discriminant and use it to determine how many real-number roots the equation has. 3x2 – 6x + 1 = 0 9) Without drawing the graph of the equation, determine how many points the parabola has in common with the x-axis and whether its vertex lies above, on, or below the x-axis. y = 2x2 + x – 3 10) Without drawing the graph of the equation, determine how many points the parabola has in common with the x-axis and whether its vertex lies above, on, or below the x-axis. y = x2 – 12x + 12

Solve the system of equations by substitution. X=-4y X+5y=2