(please help me out D: ) (I screenshot the question and answer)

Answers

Answer 1

Answer: To find the perimeter, you need the lengths of all 3 legs,
and then you add them up.

Can you find the lengths of the other 2 sides of that triangle ?

Here are a couple of factoids I learned in 1954 and I never forgot:

In a 30°- 60°- 90° right triangle . . .

-- the side opposite the 30° angle (the shorter leg)
is 1/2 the length of the hypotenuse,
and
-- the side opposite the 60° angle (the longer leg)
is (1/2 the length of the hypotenuse) times (√3).

If you have a 30°- 60°- 90° triangle and you know the length
of any one side, then you can find the lengths of the other
two sides with these amazing factoids.

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Jesse earns $12.62 an hour, plus she earns overtime for hours exceeding 40 hours per week. What is her gross weekly pay for working 47 hours if she gets time and a half for overtime?A) $541.73
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D) $849.71

**NOTE: My answer choice is d

Answers

the correct answer is c) $637.31

12.62 x 40 = 504.8

time and a half is the amount you get paid + half the amount you get paid

so half of 12.62 is 6.31 + 12.62 = 18.93

18.93 x 7 = 132.51

504.8 + 132.51 = 637.31

Tatum weighs 47.39 kilograms.What is is her mass rounded to the nearest whole number?A.50 Kilograms
B.48 Kilograms
C.47.4 Kilograms
D.47 Kilograms

Answers

47.39 rounded since 3 is lower than five the numbers before stay the same and you end with 47.0

Find the value or values of p in the quadratic equation p2+13p-30=0

Answers

This is an examination to test your level of skill. By asking this quesiton to others, you do not show your true level and maybe be placed in a higher math than you are able.

factor
remember
if ab=0
assume that a and/or b=0

p^2+13p-30=0
fidn what 2 numbers add to 13 and multiply to -30
15 and -2
(p+15)(p-2)=0

set each to zero
p+15=0
p=-15

p-2=0
p=2

the roots are p=-15 and/or 2

What is the equation of a line that passes through (1, 3) and has a slope of 2?

Answers

y=mx+bm=slopeb=y intercepty=2x+bsubsitute point(x,y)(1,3)x=1y=3subsitute3=2(1)+b3=2+bsubtract 21=bequationy=2x+1

Find the value of each variable.x=38, y=76

x=52, y=76

x=38, y=104

x=52, y=104

Answers

The value of each variable are; x=38 and y=104

What is linear pair?

Linear pair of angles are produced when two lines intersect each other at a point. The sum of angles of the linear pair is always 180 degrees.

We need to find the values of the variables x and y from the figure.

We know that if the two angles make a linear pair, then the sum of their measures is 180°.

The angles with measures y° and 76° makes a linear pair angles, so we have

y + 76 = 180

y = 180 - 76

y = 104

Also, angles with measures 2x° and y° makes a linear pair angles, so we have;

2x+y=180

2x = 180 -y

2x = 180 - 104

x = 38 degrees

Hence, the value of each variable are; x=38, y=104

Learn more about angles;

brainly.com/question/7116550

#SPJ2

2x=76 since oposite angles are equal
2x=76
divide 2
x=38

on line, angles add to 180
2x+y=180
76+y=180
minus 76 both sides
y=104

y=104
x=38

3rd option

Solve each equation with quadratic formula.2v2+12v-27=9v

Answers

$2v^2+12v-27=9v\ \ \ \ /-9v\n\n2v^2+3v-27=0\n\na=2;\ b=3;\ c=-27\n\n\Delta=b^2-4ac\n\n\Delta=3^2-4\cdot2\cdot(-27)=9+216=225\n\nv_1=(-b-\sqrt\Delta)/(2a);\ v_2=(-b+\sqrt\Delta)/(2a)\n\nv_1=(-3-√(225))/(2\cdot2)=(-3-15)/(4)=(-18)/(4)=-4(1)/(2)\n\nv_2=(-3+15)/(2\cdot2)=(12)/(4)=3$

$2v^2+3v-27=0\n\n2(v+4(1)/(2))(v-3)=0\n\nAnswer:v=-4(1)/(2)\ \vee\ v=3.$