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ss7ja [257]
3 years ago
15

1/4(x+2)+4=12 x=? Help idk

Mathematics
2 answers:
Gnoma [55]3 years ago
5 0

\frac{1}{4}(x+2)+4=12

\frac{1}{4}(x+2)=8

x+2=32

x=30


ki77a [65]3 years ago
5 0

The answer is: x = 30

Step 1: Simplify [ 1/4 (x + 2) to x+2/4 ]

Step 2: Subtract 4 from both sides.

Step 3: Simplify 12-4 to 8

Step 4: Multiply both sides by 4

Step 5: Simply 8 x 4 to 32

Step 6: Subtract 2 from both sides

Step 7: Simplify 32 - 2 to 30.

Let me know if this helps! :)

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The equation of a circle is x^2 + y^2= 42.25 Find the radius of the circle.
poizon [28]

Answer:

radius = 6.5

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

x² + y² = 42.25 ← is in this form

with r² = 42.25 ( take the square root of both sides )

r = \sqrt{42.25} = 6.5

7 0
3 years ago
PLEASE HELP ME I DON'T GET THIS!!
miskamm [114]

Answer:

the first one should be 5.28x10^-2 and the second one should be 3.2x10^6

Step-by-step explanation:

because with 0.0528 you move the decimal right twice. which makes it negative.

with 3,200,000 you assume that the decimal is at the end and move it between the three and the two. making it have 6 moves. since it moves left its positive

8 0
2 years ago
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Write the vector v in the form aiplusbj​, given its magnitude left norm Bold v right norm and the angle alpha it makes with the
photoshop1234 [79]

Answer:

6\sqrt{3}i-6j

Step-by-step explanation:

Given:

The magnitude, v=12

The angle \alpha it makes with the positive​ x-axis =150^0

Now for a vector (x,y)

  • \alpha =tan^{-1}(\frac{y}{x} ) ; and
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Therefore:

150 =tan^{-1}(\frac{y}{x} )\\\frac{y}{x} =tan 150\\\frac{y}{x}=-\frac{\sqrt{3} }{3}

y=-\frac{x \sqrt{3}}{3}

Similarly:

v=\sqrt{x^2+y^2}\\12=\sqrt{x^2+y^2}\\12^2=x^2+y^2\\144=x^2+y^2

144=x^2+(-\frac{x \sqrt{3}}{3} )^2\\144=x^2+\frac{3x^2}{9} \\144=\frac{4x^2}{3}\\4x^2=144 X 3=432\\x^2=108\\x=6\sqrt{3}

Recall that:

y=-\frac{x \sqrt{3}}{3}\\y=-\frac{6\sqrt{3}  \sqrt{3}}{3}=-6

Therefore: (x,y)=(6\sqrt{3}, -6)

The vector in the form ai+bj is therefore:

6\sqrt{3}i-6j

6 0
3 years ago
Solve the inequality for –5.3 ≥ 6.7 + 4.3 + q
Tom [10]

Answer:

-16.3  ≥  q

Step-by-step explanation:

–5.3 ≥ 6.7 + 4.3 + q

Combine like terms

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Subtract 11 from each side

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5 0
3 years ago
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Which one is the correct answer???
faust18 [17]

Answer:

D.

Step-by-step explanation:

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4 0
3 years ago
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