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3 years ago

5×10 to the power of −2 times 6.5x10 to the power of -4

Mathematics

1 answer:

Dominik [7]3 years ago

7 0

Answer:

3.25 x 10^-5

Step-by-step explanation:

( 5 x 10^-2 ) x ( 6.5 x 10^-4 )

1/20 x 13/20000

13/400000

3.25 x 10^-5

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Alyn drives 20.4 miles in 17 minutes.

Galina-37 [17]

Answer:

12 mph

Step-by-step explanation:

Speed = distance/time

Distance = 20.4 miles
Time = 17 minutes = 17*1/60 hours = 17/60 hours

Speed is:

20.4 : 17/60 =
20.4*60/17 =
72 mph

Alyn exceeded the limit by:

72 - 60 = 12 mph

5 0

3 years ago

Find g(a-2)+3g(2a) if g(x)=x²-5x+8

sertanlavr [38]

Answer:

13a² - 39a + 46

Step-by-step explanation:

To find g(a-2)+3g(2a), find each part using the function g(x)=x²-5x+8.

g(a-2) = (a-2)²-5(a-2)+8 = a² - 4a + 4-5a + 10+8 = a² - 9a + 22

3g(2a) = 3{(2a)²-5(2a)+8} = 3{ 4a² - 10a + 8} = 12a² - 30a + 24

Combine the values to find g(a-2)+3g(2a).

g(a-2)+3g(2a) = (a² - 9a + 22) + (12a² - 30a + 24) = 13a² - 39a + 46

4 0

3 years ago

Since the expression (x-4)^2+(y+1)^2 evaluated at (3,6) is

stiks02 [169]

$\bf (x-4)^2+(y+1)^2\qquad (3,6)~~ \begin{cases} x = 3\\ y = 6 \end{cases}\implies (3-4)^2+(6+1)^2 \\\\\\ (-1)^2+7^2\implies 1+49\implies 50$

5 0

3 years ago

Math help max points all questions also brainess plz dont just take them i really need help

Aleks [24]

Answer:

Step-by-step explanation:

7 0

3 years ago

Tyler baked 702 cookies he sold them in boxes of 18 after selling all of the boxes of cookies for the same amount of each he ear

jenyasd209 [6]

Keywords:

Cookies, boxes, sale, profit, unit cost

For this case we have to bake an amount of 702 cookies, which were distributed in boxes of 18 for sale. Selling each box at the same price earned a profit of 136.50 dollars, you want to know the unit cost of each box of cookies.

Let $"x"$ be the number of boxes of cookies:

So, to know the number of boxes we divide 702 cookies among 18:

$x = \frac {702} {18}\\x = 39$

So, we have Tyler sold 39 boxes of cookies

Now, let $"y"$ be the cost of each box of cookies, to know the unit cost or sale price of the cookie boxes, we divided 136.50 dollars among 39 boxes of cookies, then:

$y = \frac {136.50} {39}\\y = 3.5$

Thus, the cost of each box was 3.5 dollars.

Answer:

The cost of a box is 3.5 dollars

5 0

3 years ago

Read 2 more answers