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kramer
3 years ago
8

Solve for x 3x+wx=20

Mathematics
1 answer:
Mrac [35]3 years ago
8 0

Answer:

X=\frac{20}{3+w}

Step-by-step explanation:

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Which number has more than two factors? <br> A. 19<br> B. 23<br> C. 25<br> D. 29
Whitepunk [10]

The answer would be 25 because all of the others are prime numbers, meaning they can only be divided by themselves and 1. So it would be C.
4 0
3 years ago
Solve the equation. Round to the nearest hundredth. Show work.
Burka [1]

Answer:

x=-0.75

Step-by-step explanation:

The given equation is

4^{-5x-7}=6^{2x-1}

We take logarithm of both sides to base 10.

\log(4^{-5x-7})=\log(6^{2x-1})

(-5x-7)\log(4)=(2x-1)\log(6)

We expand the brackets to get;

-5x\log(4)-7\log(4)=2x\log(6)-\log(6)

Group similar terms;

-7\log(4)+\log(6)=2x\log(6)+5x\log(4)

-7\log(4)+\log(6)=(2\log(6)+5\log(4))x

\frac{-7\log(4)+\log(6)}{(2\log(6)+5\log(4))}=x

x=-0.752478

To the nearest hundredth.

x=-0.75

3 0
3 years ago
Ignore them workings out.<br> Can someone show me how to work this out
Readme [11.4K]
So, i did this, 
7.8*10=70
and then add 12
i got 82
did this help??
7 0
3 years ago
what is the smallest number of degrees needed to rotate a regular Pentagon around its center onto itself?
Alex
One rotation has 360 degrees. Since regular Pentagon has 5 sides and each of them takes 360/5=72 degrees when looked from center, if we rotate regular Pentagon by 72 degrees we will get same shape as we started from.

Therefore answer is 72 degrees.
4 0
3 years ago
Which of the following is the equation of a line that has a slope of -2 and passes through the
KATRIN_1 [288]

Answer:

B. y = -2x + 8

Step-by-step explanation:

So the slope is the number that comes before the x, and if the slope is -2, that means the number before is -2, and it is.

And to know if it goes through (1, 6), put those numbers into the equation and see if they match up (x is the y-intercept)

6 = -2(1) + x

6 = -2 + x

x = 8

The one with both of these is B, which means B is the answer

3 0
3 years ago
Read 2 more answers
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