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Katyanochek1 [597]
3 years ago
13

True/False: Sound waves are produced by

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
7 0
True, sound waves are created when vibrated and they travel through transverse waves
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$17,818 is invested, part at 11% and the rest at 6%. If the interest earned from the amount invested at 11% exceeds the interest
erma4kov [3.2K]

Answer:We know the total amount of money invested. $17818

x+y=17818,

We know that the difference in interest earned by the two accounts is $490.33

0.11*x-0.06*y=490.33

x=17818-y

We substitute for x

0.11*(17818-y)-0.06*y=490.33

We multiply out

1959.98-0.11y-0.06*y=490.33

We combine like terms.

1469.65=0.17*y

Isolate y

y=1469.65/0.17

y=8645 at 6%

Calculate x

x=17818-8645

x=9173 at 11%

Check

0.11*9173-0.06*8645=490.33

interest earned at 11%=1009.03

interest earned at 6%=518.70

1009.03-518.7=490.33

490.33=490.33

Since this statement is TRUE and neither amount is negative then all is well.We know the total amount of money invested. $17818

x+y=17818,

We know that the difference in interest earned by the two accounts is $490.33

0.11*x-0.06*y=490.33

x=17818-y

We substitute for x

0.11*(17818-y)-0.06*y=490.33

We multiply out

1959.98-0.11y-0.06*y=490.33

We combine like terms.

1469.65=0.17*y

Isolate y

y=1469.65/0.17

y=8645 at 6%

Calculate x

x=17818-8645

x=9173 at 11%

Check

0.11*9173-0.06*8645=490.33

interest earned at 11%=1009.03

interest earned at 6%=518.70

1009.03-518.7=490.33

490.33=490.33

Since this statement is TRUE and neither amount is negative then all is well.

8 0
3 years ago
Identify the zeros of f(x) = (x + 9)(x − 4)(6x + 1).
slavikrds [6]
<h2>The required 'option a)  - 9 , \dfrac{-1}{6}, 4' is correct.</h2>

Step-by-step explanation:

We have,

f(x) = (x + 9)(x − 4)(6x + 1)

To find, all zeroes of the given equation = ?

∴ f(x) = (x + 9)(x − 4)(6x + 1)

⇒ (x + 9)(x − 4)(6x + 1) = 0

⇒ x + 9 = 0 or, x − 4 = 0 or, 6x + 1 = 0

⇒ x + 9 = 0 ⇒  x = - 9

⇒ x − 4 = 0 ⇒ x = 4

⇒ 6x + 1 = 0

⇒ 6x = - 1

⇒ x = \dfrac{-1}{6}

∴ x = - 9 , \dfrac{-1}{6}, 4

Thus, the required 'option a)  - 9 , \dfrac{-1}{6}, 4' is correct.

3 0
3 years ago
Read 2 more answers
Richard buys a carton of oranges and measures the weight of 1 orange in the carton Which measure gives the most precise weight?
Rama09 [41]

Answer:

0.8 lbs

Step-by-step explanation:

Ounces are typically used to measure liquid, so I would discourage choosing the top two. And, hopefully you know by now that an orange does not weigh 8 pounds.

5 0
3 years ago
Read 2 more answers
Which molecule activates light reactions
natta225 [31]

Answer:

Step-by-step explanation:

The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH. In plants, the light reactions take place in the thylakoid membranes of organelles called chloroplasts.

5 0
3 years ago
Graph this function:<br> y - 7 = -5(x + 5)
Komok [63]

Answer:

Look at the graph for help

Step-by-step explanation:

if you need to graph us desmos graphing its free just plug in you cordinates

8 0
3 years ago
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