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Strike441 [17]
3 years ago
11

Which of these is a two-step equation? A.X+ 9 = 21 B.x= 11+2 C.2x + 9 = 21 D.x/3 = 9

Mathematics
2 answers:
MissTica3 years ago
7 0
Answer: C

Explanation:
x+9=21
x=12

x=11+2
x=13

2x+9=21
2x=12
x=6

x/3=9
x=27
inysia [295]3 years ago
4 0
The answer would be C
2x + 9 = 21
1. 2x = 12
2. x = 6
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Quadrilateral OPQR is inscribed inside a circle as shown below. What is the measure of angle O? You must show all your work.
likoan [24]

Answer:

88 deg

Step-by-step explanation:

Opposite angles of an inscribed quadrilateral are supplementary. That means that the sum of the measures of angles O and Q is 180 deg.

2x + 2x + 4 = 180

4x + 4 = 180

4x = 176

x = 44

m<O = 2x = 2(44) = 88

Answer: 88 deg

4 0
2 years ago
Answer number one asap this is not a joke so please not random cmts thx will report if u do!
STALIN [3.7K]
1. The area of one face of the bar is
.. face area = (50 mm)*(90 mm) = 4500 mm^2
The area of two sides of the bar is
.. side area = (50 mm +90 mm)*(3.5 mm) = 490 mm^2

Together, those areas cover half the bar, so the total paper required is
.. 2*(4500 mm^2 +490 mm^2) = 9980 mm^2 . . . . . . 3rd selection

2. The length of the central rectangle is
.. 8 ft + 6 ft + 10 ft = 24 ft
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Each of the two triangles has a base of 8 ft and a height of 6 ft, so together, they have an area of
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8 0
3 years ago
Let f(x) = x2 − 16. find f−1(x). open study
Bogdan [553]
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x = y^2 - 16

The next step is to get y by itself. So first you add 16 to both sides:

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5 0
3 years ago
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Volume of this prism ​
Lyrx [107]

The volume is (area of cross-section) x (length) .

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Area = (1/2) (9/4 m) (3-1/3 m)

Area = (1/2) (9/4) (10/3)

Area = 90/24 m² .

-- Volume = (area of cross-section) x (length)

Volume = (90/24 m²) x (7-1/3 m)

Volume = (90/24) x (22/3) m³

Volume = (1,980 / 72) m³

<em>Volume = 27.5 m³  </em>

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3 years ago
How do you solve y+1=2x
vampirchik [111]

y =2x-1

Step-by-step explanation:

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