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N76 [4]
3 years ago
14

Solve for x. 6 - 4x = -22

Mathematics
1 answer:
Kitty [74]3 years ago
8 0

Answer:

x = 7

Step-by-step explanation:

6 - 4x = -22

-6          - 6

-4x = -28

x = -28/-4

x = 7

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A box contains seven 40-W bulbs, four 60-W bulbs, and six 75-W bulbs. If bulbs are selected one by one in random order, what is
OLEGan [10]

Answer: 2.833

Step-by-step explanation:

Add up the amount of light bulbs: (7+6+4).

Divide 17 (^the sum^) by 6 (the amount of 75 watt bulbs).

3 0
3 years ago
#5 please, multiple response !
Nat2105 [25]
The answer is option D
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6 0
3 years ago
A dolphin is swimming 20 feet below the surface. It descends another 10 feet before rising 2
andrezito [222]

Answer:

28 feet

Step-by-step explanation:

20 + 10 = 30 - 2 = 28 feet

The dolphin is 20 feet below the surface, goes down another 10 feet, so 30 feet below the surface, and raises two feet, so 28 feet below the surface.

8 0
3 years ago
Find the area of the shaded portion in the circle.
Anastasy [175]
See the attached picture to better understand the problem

we know that
<span>the area of the shaded portion in the circle=area 1+area 2

step 1
find area 1
area 1=area of semi circle
area 1=pi*r</span>²/2
diameter=12 units
radius r=12/2----> 6 units

r=6 units
area 1=pi*6²/2----> 56.52 units²

step 2
find the area 2

area 2=area sector CADC-area triangle ACD

in the right triangle ABC
BC=3
AC=r-----> AC=6
AB=?
applying Pythagoras Theorem
AC²=AB²+BC²------> AB²=6²-3²-----> AB²=27----> AB=3√3 units
area triangle ACD=b*h/2
b=2*3√3---> 6√3 units
h=3 units
area triangle ACD=6√3*3/2----> 9√3 units²-----> 15.59 units²

find the angle ACB
tan ∠ACB=AB/BC-----> 3√3/3---> √3
∠ACB=arc tan (√3)-----> 60°

the central angle ACD=60*2-----> 120°


area of sector CADC=(120/360)*pi*r²----> (120/360)*pi*6²---> 37.68 units²
area 2=area sector CADC-area triangle ACD
area 2=37.68-15.59----> 22.09 units²

step 3
the area of the shaded portion in the circle=area 1+area 2
the area of the shaded portion in the circle= 56.52 +22.09----> 78.61 units²

the answer is
the area of the shaded portion is 78.61 units²

6 0
3 years ago
Read 2 more answers
H
tigry1 [53]

Answer:

4448 feet²

Step-by-step explanation:

Using the formula A = 2((l)x(w) + (l)x(h) + (w)x(h)) we can take the length, width and height and plug them in. A = 2(44x21 + 44x20 + 21x20), solving this equation we get 4448 feet^{2}.

8 0
2 years ago
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