2 years ago

5. Tamara spent $164 on

Mathematics

1 answer:

elena-14-01-66 [18.8K]2 years ago

6 0

You need to subtract 200 from 164 which is 36

You might be interested in

The tank for a car15 gallon. The gasoline gauge shows the tank is 1/8 full. How much gas is still in the tank

slamgirl [31]

30=5x divide both sides by 5 x=6 gal

5 0

3 years ago

Use the definition of the derivative to differentiate v=4/2 pie r^3

nata0808 [166]

I suspect 4/2 should actually be 4/3, since 4/2 = 2, while 4/3 would make V the volume of a sphere with radius r. But I'll stick with what's given:

$\displaystyle \frac{dV}{dr} = \lim_{h\to0} \frac{2\pi(r+h)^3-2\pi r^3}{h}$

$\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} \frac{(r^3+3r^2h+3rh^2+h^3)- r^3}{h}$

$\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} \frac{3r^2h+3rh^2+h^3}{h}$

$\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} (3r^2+3rh+h^2)$

$\displaystyle \frac{dV}{dr} = 2\pi \cdot 3r^2 = \boxed{6\pi r^2}$

In Mathematica, you can check this result via

D[4/2*Pi*r^3, r]

3 0

3 years ago

Given two vectors a⃗ = 4.60 i^+ 7.20 j^ and b⃗ = 5.10 i^− 2.70 j^ , find the scalar product of the two vectors a⃗ and b⃗ .

grin007 [14]

A=<4.60,7.20>
b=<5.10,2.70>
The scalar product, or the inner product, or the dot-product, is by summing the products of the respective directions,
a.b=4.6*5.1+7.2*2.7
=23.46+19.44
=42.9

6 0

3 years ago

Use the graph to answer the question.

dmitriy555 [2]

Answer:

Step-by-step explanation:

hope it helps :)

3 0

3 years ago

3 true conjectures that students may make concerning even and odd numbers

Elza [17]

Even numbers are divided by two

Even numbers are easier to cope with in math problems

There are only odd prime numbers

6 0

3 years ago