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3 years ago

12

Pls help!!!

1 answer:

natka813 [3]3 years ago

5 0

Answer:

The area of the base B is equal to $770\ cm^{2}$

The volume is equal to $10,087\ cm^{3}$

Step-by-step explanation:

I will proceed to resolve the problem indicated in the attached figure.

The figure shown a inverted rectangular pyramid

The base is a rectangle

The area of the base B is equal to

$B=(35)(22)=770\ cm^{2}$

To find how many cubic centimeters of titanium are needed to manufacture one tip, calculate the volume of the figure

<em>Find the volume of the inverted rectangular pyramid</em>

The volume of the pyramid is equal to

$V=\frac{1}{3}BH$

we have

$B=770\ cm^{2}$

$H=39.3\ cm$

substitute

$V=\frac{1}{3}(770)(39.3)=10,087\ cm^{3}$

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5 0

2 years ago

Read 2 more answers

Solve the following absolute value equations. Show the solution set and check your answers. |0.3-3/5k|-0.4=1.2

9966 [12]

Answer:

**The equation is not clear, so I have provided both options**

<h3><u>Option 1</u></h3>

$\left|0.3-\dfrac{3}{5}k\right|-0.4=1.2$

$\implies \left|0.3-\dfrac{3}{5}k\right|=1.6$

<u>Solution 1</u>

$\implies 0.3-\dfrac{3}{5}k=1.6$

$\implies -\dfrac{3}{5}k=1.3$

$\implies k=-\dfrac{13}{6}$

<u>Solution 2</u>

$\implies -(0.3-\dfrac{3}{5}k)=1.6$

$\implies -0.3+\dfrac{3}{5}k=1.6$

$\implies \dfrac{3}{5}k=1.9$

$\implies k=\dfrac{19}{6}$

<h3><u>Option 2</u></h3>

$\left|0.3-\dfrac{3}{5k}\right|-0.4=1.2$

$\implies \left|0.3-\dfrac{3}{5k}\right|=1.6$

<u>Solution 1</u>

$\implies 0.3-\dfrac{3}{5k}=1.6$

$\implies -\dfrac{3}{5k}=1.3$

$\implies -3=6.5k$

$\implies k=-\dfrac{6}{13}$

<u>Solution 2</u>

$\implies -(0.3-\dfrac{3}{5k})=1.6$

$\implies -0.3+\dfrac{3}{5k}=1.6$

$\implies \dfrac{3}{5k}=1.9$

$\implies 3=9.5k$

$\implies k=\dfrac{6}{19}$

6 0

1 year ago

The radius of a semicircle is 4 miles. What is the semicircle's area?

adell [148]

Answer:

8 $\pi$ miles or 25.133 miles

Step-by-step explanation:

your radius is 4 miles.

The area of a circle is A= $\pi r^{2}$

Therefore, the area of this circle is $4^{2} \pi$ , or 16 $\pi$

Half of this area, because what you're looking for is a semi-circle, is:

8 $\pi$ (exact) or 25.133 (rounded) miles.

6 0

2 years ago

3/5 - 1/3 give your answer as a fraction in its simplest form

Step2247 [10]

Answer:4/15

Step-by-step explanation:

1. multiply and divide (left to right)3/5

=3/5-1/3

2.multiply and divide (left to right) 1/3

=3/5-1/3

3.add and subtract (left to right) 3/5-1.3:4/15

=4/15

4 0

3 years ago

X=y-1 y=(4-2x) solve by substition

Nataliya [291]

Since you have an equation equal to both x and y, you can either substitute the equation equal to x for x or the equation equal to y for y.
x=y-1
y=4-2x
I would substitute the y in using 4-2x
x=(4-2x)-1
x=3-2x
3x=3
x=1
Then plug in x and solve for y
1=y-1
2=y

5 0

3 years ago