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IrinaK [193]
4 years ago
6

I need help with this two questions.

Mathematics
1 answer:
mezya [45]4 years ago
8 0
Always get rid of denominators first. Multiply both right and left side by 6
-7 (6) = -c (6)/6 + 12(6)
-42 = -c + 72
c = 72 +42
c = 114

rearrange like terms together
42 = 18 - 4x
4x = 18 -42
4x = -24
divide both sides by 4
x = -6
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write the equation for a polynomial of least degree with integer coefficients given the following zeros: -2, -6, -10i. leave you
lorasvet [3.4K]

The equation of the polynomial in factored form is (x+2)(x+6)(x-10) = 0

<h3>What is a polynomial?</h3>

A polynomial is an algebraic equation with at least the power of its variable 3.

Analysis:

if -2, -6, -10i are the zeroes of the polynomial, it means x = -2, x = -6, x = -10i

if x = -2, (x+2) is a factor, (x+6) is a factor.

convert x = -10i to a real number,

i = \sqrt{-1}

-10\sqrt{-1} = 10\sqrt{- -1} = 10\sqrt{1} = 10

x = 10, so (x-10) is a factor.

Therefore equation of the polynomial in factored form is (x+2)(x+6)(x-10) = 0

Learn more about polynomial: brainly.com/question/2833285

#SPJ1

6 0
2 years ago
What is the radius of the Brazilian coin that has a circumference of 84.78 mm? Explain your work. Use 3.14 pi
ICE Princess25 [194]
Hey there!

Sorry If this answer is late, but here ya go.

To find the radius of this Brazilian coin, first multiply 3.14 by 2. This will give you and answer of 6.28. Then, divide 84.78 mm by this, and you will get your radius of 13.5.

Have a good day! And stay CRAZZZY! :D
3 0
3 years ago
Read 2 more answers
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Tomtit [17]

a) The cost for 10 mile taxi ride is $18

b) The cost for m mile taxi ride is 1.5 m + 3

Step-by-step explanation:

Step 1 :

The fixed charges for the pick up = $3

Charges per mile = $1.50

Let s denote the total miles driven and t be the total cost for the trip

This can be represented by the equation

t = 3 + 1.5s

Step 2:

Distance traveled by Jonathan in his trip = 10 miles

So cost for riding 10 miles is

t = 3 + 1.5(10) = 3 + 15 = $18

The cost for 10 mile taxi ride is $18

Step 3 :

If the distance traveled is m miles, then substituting s = m in the above equation we get the cost as 1.5 m + 3

Step 4 :

Answer :

a) The cost for 10 mile taxi ride is $18

b) The cost for m mile taxi ride is 1.5 m + 3

3 0
3 years ago
What is the solution?. 1/2x2 – x + 5 = 0
AfilCa [17]
1/2 x^2 - x + 5 = 0
Multiply through by 2 to get:
x^2 - 2x + 10 = 0
x= \frac{-b\pm\sqrt{b^2-4ac}}{2a}; where a = 1, b = -2 and c = 10
x=\frac{-(-2)\pm\sqrt{(-2)^2-(4\times1\times10)}}{2\times1}\\=\frac{2\pm\sqrt{4-40}}{2}\\=\frac{2\pm\sqrt{-36}}{2}\\=\frac{2\pm6i}{2}\\=1\pm3i
Therefore, x = 1 + 3i or x = 1 - 3i
4 0
4 years ago
Write the log equation<br> as an exponential equation.<br> log (x) = x
krok68 [10]

Answer:(x)=10^x

Step-by-step explanation:

Log(x)=x

(x)=10^x

8 0
4 years ago
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