3 years ago

How do I solve this

Mathematics

1 answer:

s344n2d4d5 [400]3 years ago

8 0

The formula for the surface area of a cylinder is pi×2rh+2pi(r^2)
In this problem, r is 4 in and h is 16 in

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Laura invested $1000 in a college saving account for her children that had an annual interest rate of 11% compounded continuousl

Vlad1618 [11]

Answer:

$2200

Step-by-step explanation:

1000*11%*20=2200

3 0

3 years ago

I need help with this

Svetllana [295]

Answer:

m∠z = 106°

Step-by-step explanation:

From the figure attached,

By exterior angle theorem,

m∠z = a + 68°

By linear pair theorem,

m∠a + 142° = 180°

m∠a = 180° - 142°

= 38°

Therefore, m∠z = 38° + 68°

= 106°

7 0

3 years ago

1] If 221ₓ= 25₁₀ find X<br> 2] if 3ₓ + 34ₓ - 40ₓ = 0 find x<br> 3] if 23ₓ = 1111₂ find x

Olin [163]

$2\cdot x^2+2\cdot x^1+1\cdot x^0=25\\2x^2+2x+1=25\\2x^2+2x-24=0\\x^2+x-12=0\\x^2+4x-3x-12=0\\x(x+4)-3(x+4)=0\\(x-3)(x+4)=0\\x=3 \vee x=-4$

The base can't be negative, therefore $x=3$ .

$3\cdot x^0+3\cdot x^1+4\cdot x^0-4\cdot x^1+0\cdot x^0=0\\3+3x+4-4x=0\\x=7$

$2\cdot x^1+3\cdotx^0=1\cdot 2^3+1\cdot2^2+1\cdot2^1+1\cdot2^0\\2x+1=8+4+2+1\\2x=14\\x=7$

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2 years ago

How can you get the constant of proportonality

kolbaska11 [484]

The constant of proportionality (k) equals the total price (y) divided by the number of cans (x).

Step-by-step explanation:

6 0

4 years ago

What is the slope of the line?

crimeas [40]

You’re close already :).
Slope is rise/run!
So, here you’ve showed that the rise is up 3 units
You’ve also showed that you move over to the right 2 units
It will be 3/2

8 0

3 years ago