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3 years ago

Plz help ill give u brainlist

Mathematics

1 answer:

marissa [1.9K]3 years ago

7 0

The formula of pyramid is 1/3 Bh where B is area of base and h is height.

So it's just V = (1/3)·10·10·12 = 400

Final answer: 400 ft³

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Reasoning uses facts, definitions, and accepted properties in a logical order to write a logical argument.

lidiya [134]

Answer:

Step-by-step explanation:

yan po ang answer ko^_^^_^

6 0

3 years ago

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A class of 4th graders sold tickets to their school play. Each of the 23 students in the class sold 4 tickets. The cost of each

zaharov [31]

Answer:

The made $644

Step-by-step explanation:

23*4= 92 (how many ticks sold all together)

92*$7= $644 (the number of tickets multiplied by the price)

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3 years ago

Two forces with magnitudes of 150 and 100 pounds act on an object at angles of 30° and 120°, respectively. Find the direction an

lyudmila [28]

<h2>Answer:</h2>

$Magnitude=180.27 \ lbf \\ \\ Direction=63.69 \ degrees$

<h2>Step-by-step explanation:</h2>

We have two forces as follows:

<u>First force:</u>

Magnitude: 150 pounds

Angle: 30°

<u>First force:</u>

Magnitude: 100 pounds

Angle: 120°

So the components can be found as follows:

$F_{1x}=150cos(30)=129.90 \ lbf\\F_{1y}=150sin(30) = 75 \ lbf \\ \\ F_{2x}=100cos(120)=-50 \ lbf\\F_{2y}=100sin(120) = 86.60 \ lbf$

So the components of the resultant force can be found by adding each component of the individual forces as follows:

$R_{x}=\Sigma F_{x} \\ R_{y}=\Sigma F_{y} \\ \\ R_{x}=129.90-50=79.90 \ lbf \\ R_{y}=75+86.60=161.6 \ lbf$

Finally, the magnitude and direction of the resultant force is:

$Magnitude \rightarrow R=\sqrt{R_{x}^2+R_{y}^2}=\sqrt{79.90^2+161.6^2}=180.27 \ lbf \\ \\ Direction \rightarrow \theta=tan^{-1}(\frac{R_{y}}{R_{x}})=tan^{-1}(\frac{161.6}{79.90})=63.69 \ degrees$

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3 years ago

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The model below represents 2x+1=-X+4.

mars1129 [50]

Answer: C

Step-by-step explanation:

I just took the test

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3 years ago

Help please Geometry ( Special Right Triangles )

fgiga [73]

Answer:

Step-by-step explanation:

I hope you mean the second problem in the first row, not the second problem in the first column.

x = 15/√3

4 0

3 years ago