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2 years ago

Which number belongs to the solution set of the equation below?8x = 120A. 128B. 15C. 112D. 16

Mathematics

2 answers:

kotegsom [21]2 years ago

7 0

B- 15.
Hope this helps!

Maksim231197 [3]2 years ago

6 0

B I think it B I hope this helps

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The organization sent

ValentinkaMS [17]

Answer:

<h2>The percentage of the people invited attended the fundraising event is 69.33%.</h2>

Step-by-step explanation:

To find the percentage of those who attended the fundraising event, simply divide the number of attendees to the total number invited.

$\frac{416}{640} = 0.69333333 = \boxed{69.33\%}$

7 0

2 years ago

HELPPPP What is the volume of the square pyramid? Use Pythagorean’s Theorem to find the height of the pyramid

aalyn [17]

Answer: 4,111.7 mm³

Step-by-step explanation:

You need to use this formula to calculate the volume of the square pyramid:

$V=\frac{s^2h}{3}$

Where "s" is the lenght of any side of the square base and "h" is the height of the pyramid.

Find the height with the Pythagorean Theorem:

$a^2=b^2+c^2$

Where "a" is the hypotenuse and "b" and "c" are the legs of the right triangle. Let be "c" the height of the pyramid.

You can identify in the figure that:

$a=26mm\\\\b=\frac{23mm}{2}=11.5mm\\\\c=h$

Then, you can find the height:

$(26mm)^2=(11.5mm)^2+h^2\\\\h=\sqrt{(26mm)^2-(11.5mm)^2}\\\\h=23.318mm$

Then, knowing that:

$s=23mm\\h=23.318mm$

You can calculate the volume:

$V=\frac{(23mm)^2(23.318mm)}{3}=4,111.7mm^3$

3 0

2 years ago

An aircraft factory manufactures airplane engines. The unit cost (the cost in dollars to make each airplane engine) depends on t

Juliette [100K]

Answer:

Minimum unit cost = 5,858

Step-by-step explanation:

Given the function : C(x)=x^2−520x+73458

To find the minimum unit cost :

Take the derivative of C(x) with respect to x

dC/dx = 2x - 520

Set = 0

2x - 520

2x = 520

x = 260

To minimize unit cost, 260 engines must be produced

Hence, minimum unit cost will be :

C(x)=x^2−520x+73458

Put x = 260

C(260) = 260^2−520(260) + 73458

= 5,858

7 0

2 years ago

What is the angle of B?

amid [387]

Answer:

Step-by-step explanation:

4 0

2 years ago

Phoebe bought 28 ounces of gourmet cheese for a fondue. If the cheese sells for $6.00 per pound, how much will Phoebe pay for

MariettaO [177]

$10.50
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3 0

2 years ago

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