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pashok25 [27]
3 years ago
8

Find b, given that a = 18.2, B = 62°, and C = 48°. Round answers to the nearest whole number. Do not use a decimal point or extr

a spaces in the answer or it will be marked incorrect.
Mathematics
1 answer:
Degger [83]3 years ago
7 0
C) 48 is the correct answer.
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The diagonal of a cube is 28 cm. Identify the length of an edge.
asambeis [7]
So the diagonal of cube
this was a practice act question so her's the answer

look at the cube through one of the faces
you will see the diagonal as the hypotonuse of  a triangle
and also a triangle on the floor (look at attachment)
the ,diagonal is 28
a^2+b^2=28^2
a=b since it is a cube
remember that this is a 45,45 triangle so therefor
a=b=x
c=x√2 so
28=x√2
divide both sides by √2
28/(√2)=x
the diagonal on the floor is 28/(√2)
the sides of the triangle form another 45 45 90 triangle with 28/(√2) as hyponuse so
a=b=x
c=x√2=28/(√2)
solve for x
x√2=28/(√2)
divide both sides by √2
same as mujlitply both sides by 1/(√2) so
28/(√2) times 1/(√2)=28/(2)=14
the answer of 1 diagonal is 14 cm
the answer is 14cm

4 0
2 years ago
Find the equation of the line through point (3,2) and perpendicular to 3x + 5y = 15
Vesnalui [34]

Answer:

y=5/3x-3

Step-by-step explanation:

first, let's put 3x+5y=15 into y=mx+b form

move 3x to the other side

5y=-3x+15

divide by 5

y=-3/5x+3

now, perendicular lines have slopes that are negative and reciprocal.

With our new equation we can automatically find the slope, which would be 5/3.

now, we need to find b

plug the points (3,2) into y=5/3x+b

2=5/3(3)+b

2=5+b

-3=b

so that means that our equation will now be

y=5/3x-3.

Hope this helps!

6 0
3 years ago
Which ordered pair is a solution of the equation?
Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

Only (4, -1)

5 0
2 years ago
Manny finds a box of 350 postcards.He selects a random sample of 75 postcards and finds that 27 already have stamp on them. Pred
Whitepunk [10]

Answer:

126

Step-by-step explanatidivide 350 by 75 then multiply the answer by 27 and you get the answer that method works with most questions like this please give brainliest

5 0
3 years ago
The school collected money for sweatshirts. If 75 students bought sweatshirts and the total cost was $1,260, how much did each s
Aliun [14]

Answer:

16.08

Step-by-step explanation:

5 0
3 years ago
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