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MA_775_DIABLO [31]
3 years ago
6

Volume of cube with edge of three

Mathematics
1 answer:
USPshnik [31]3 years ago
3 0

3x3x3 = 27

.....................

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A child requires a 5ml dose of medicine each day. how many days would a gallon of this medicine last.
OLga [1]

in a US gallon, there are approximately 3.79 Liters, in a Liter there are 1000 milliLiters, so 3.79 Liters is then 3.79 * 1000 milliLiters, namely 3790 milliliters.

since a gallon is then approximately 3790 mL, how many times does 5mL go in to 3790? 3790 ÷ 5 = 758.

since the child uses 5mL in 1 day, then 758 times that is 758 days.

4 0
4 years ago
Is line AB tangent to the circle ?
galben [10]

Answer:

Yes

Step-by-step explanation:

A tangent has one point touching the circle and is always perpendicular to the radius drawn in as well. Therefore line AB is tangent to the circle and creates a right triangle.

5 0
3 years ago
Evaluate each function at the given value <br> f(n) = n ^ 4 + 5n ^ 3 + 2n ^ 2 - 5n + 13 at n = - 2
DedPeter [7]

Answer:

  • 7

Step-by-step explanation:

<h3>Given</h3>
  • f(n) = n ^ 4 + 5n ^ 3 + 2n ^ 2 - 5n + 13
<h3>To find </h3>
  • f(-2)
<h3>Solution</h3>

<u>Substituting n with -2</u>

  • f(-2) =
  • (-2)^4 + 5(-2)^3 + 2(-2)^2 - 5(-2) + 13 =
  • 16 - 40 + 8 + 10 + 13 =
  • 7
3 0
3 years ago
Solve each triangle for the missing values shown. Show all work necessary. Use exact values
Gelneren [198K]

3)

Cos 60°= \frac{1}{2} = \frac{Adjacent} {Hypotenuse} = \frac{y} {10} \\\\ 2y=10 \\\\ y=5

Now, use Pythagoras theorem to find x

x^2+y^2=10^2 \\\\ \to x^2+5^2=10^2 \\\\ \to x^2+25=100 \\\\ \to x^2 = 100-25 \\\\ \to x^2= 75 \\\\ \to x= \sqrt{75} \\\\ \bf 5 \sqrt{3}

Similarly,

4)

Sin 45°= \frac{1}{\sqrt{2}} = \frac{Opposite} {Hypotenuse} =\frac{2 \sqrt{2}} {a} \\\\ a= 2 \sqrt{2} \times \sqrt{2} \\\\ a=4

Now, use Pythagoras theorem to find b

b^2+(2 \sqrt{2}) ^2=a^2 \\\\ \to b^2+8=4^2 \\\\ \to b^2=16-8  \\\\ \to b^2 = 8\\\\ \to b= \sqrt{8} \\\\ \bf b=2 \sqrt{2}

You can solve all of them in a similar way.

: )

7 0
3 years ago
50 apples cost $25.how much would 75 apples cost​
inessss [21]

Answer:

150

Step-by-step explanation: one apple cost $0.50, so 75/ $0.50= 150

6 0
3 years ago
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