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3 years ago

10

Stephanie spent $110 on 1.7 pounds of coffee. she wants to know how much each pound costs. how would she find out how much each

pound costs? write equation and explain how you got that answer.

1 answer:

JulijaS [17]3 years ago

8 0

$64.71 rounded, explanation attached

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Two cubes are of sides 6 inches and 8 inches respectively. Find the ratio of (a) their sides, (b) their areas on one face, (c) t

german

Answer:

a. the ratio of the sides is 6: 8, or 3:4

b. the ratio of the surfaces is $\frac{6\times 6}{8\times8}$ or 9:16, the square of the ratio of the sides.

c. the ratio of the volumes is $\frac{6\times6\times6}{8\times8\times8}$ or 27:64, the cube of the ratio of the sides.

4 0

3 years ago

Simplify the expression. Use the variables, numbers, and symbols that are shown. Drag them to the appropriate box in the polynom

lord [1]

= 2x²+3x+x²-7x+12
= 3x²-4x+12

3 0

3 years ago

What is the measure of an angle that is 8 degrees less than 3 times its supplement?

Ymorist [56]

Supplementary angles have a sum of 180 degrees.

If one angle is x, its supplementary angle is 180-x.

We are told that x is 8 less than triple its supplements so:

x=3(180-x)-8

x=540-3x-8

4x=532

x=133

6 0

3 years ago

Would be sweet if you all can help out with these 2...

telo118 [61]

Answer:

for 10 points yep and its 20 and 30

Step-by-step explanation:

5 0

3 years ago

Gemiola [76]

The derivative of $f(x) = 2\cdot x^{2}-9$ is $f'(x) = 4\cdot x$ .

In this exercise we must apply the definition of derivative, which is described below:

$f'(x) = \lim_{x \to 0} a_n \frac{f(x+h)-f(x)}{h}$ (1)

If we know that $f(x) = 2\cdot x^{2}-9$ , then the derivative of the expression is:

$f'(x) = \lim_{h \to 0} \frac{2\cdot (x+h)^{2}-9-2\cdot x^{2}+9}{h}$

$f'(x) = 2\cdot \lim_{h \to 0} \frac{x^{2}+2\cdot h\cdot x + h^{2}-2\cdot x^{2}}{h}$

$f'(x) = 2\cdot \lim_{h \to 0} 2\cdot x + h$

$f'(x) = 4\cdot x$

The derivative of $f(x) = 2\cdot x^{2}-9$ is $f'(x) = 4\cdot x$ .

We kindly invite to check this question on derivatives: brainly.com/question/23847661

4 0

3 years ago