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soldier1979 [14.2K]

2 years ago

7

Using numbers, variables and symbols, write an expression that describes the following The product of 5 and n, minus the quotien

t of t and 7

1 answer:

slavikrds [6]2 years ago

8 0

Answer:

5n-t/7

Step-by-step explanation:

The product of 5 and n puts them in the same category and product means times and your going to minus t divided by 7

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In ΔABC, the lengths of a, b, and c are 22.5 centimeters, 18 centimeters, and 13.6 centimeters, respectively.

Irina-Kira [14]

Given the values of the three sides of the triangle, we can apply the Cosine Law to find the angles of the triangle. Recall that for we can express the value of c through the equation below.

$c^{2} = a^{2} + b^{2} - 2abcosC$

Rearranging this equation, we can find the value ∠C as shown below.

$\cos C = \frac{a^{2}+b^{2}-c^{2}}{2ab}$
$C = cos^{-1} (\frac{a^{2}+b^{2}-c^{2}}{2ab})$

We can apply the same reasoning for finding the value of ∠B as shown.

$B = cos^{-1} (\frac{a^{2}+c^{2}-b^{2}}{2ac})$

Plugging in the values of the sides (see image attached) from the given. It will now be straightforward to compute for ∠B and ∠C.

$C = cos^{-1} (\frac{22.5^{2}+18^{2}-13.6^{2}}{2(22.5)(18)})$
$C \approx 37.19$

$B = cos^{-1} (\frac{22.5^{2}+13.6^{2}-18^{2}}{2(22.5)(13.6)})$
$B \approx 53.13$

Answer: ∠C = 37.19° and ∠B = 53.13°

7 0

2 years ago

Read 2 more answers

To convert meters per minute to kilometers per hour, which of the conversion facorts would be used?

madam [21]

Divide by 1000 to convert to kilometers per minute

Then multiply by 60 to convert to kilometers per hour.

Conversion factor is 60/1000 = 0.06 answer

4 0

2 years ago

a car needw fixing and abe can fix it for $70 per hour with a $130 part, but gabe can fix it for $80 an hour with a $40 part. ho

Zolol [24]

70 + 130 = 200
This would be Abe’s one hour of work and the part
80 + 80 + 40 = 200
This would be Gabe’s two hours of work and the part

6 0

2 years ago

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Solve 76+45+98+76-7=

Olin [163]

Answer:

288

Step-by-step explanation:

76+45=121

121+98=219

219+76=295

295-7=288

7 0

2 years ago

Read 2 more answers

What is the area of a parallelogram whose bases are 9

Nady [450]

<em> </em><em>Base=9cm</em>

<em>height=3</em><em> </em><em>cm</em>

<em>Area</em><em> </em><em>of</em><em> </em><em>parallelogram=b*h</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>9</em><em>*</em><em>3</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>2</em><em>7</em><em>c</em><em>m</em><em>^</em><em>2</em><em>.</em>

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>:</em><em>)</em>

6 0

2 years ago