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2 years ago

Solve the system of equations using elimination: -5x - 8y = -8 and

Mathematics

1 answer:

velikii [3]2 years ago

6 0

Hope this helps !!!!!!!!!!!!

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2 400 000 in standard form

Archy [21]

It's going to be 2.4 * 10 to the power of 6.

Hope this helped =)

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3 years ago

Every year Victoria receives $30 for her birthday plus $2 for each year of her age Lacey receives $20 for her birthday and $4 fo

sergeinik [125]

2018 they will make the same

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3 years ago

Read 2 more answers

Find a parametrization r ( t ) r(t) of the line through the origin whose projection on the x y - xy- plane is a line of slope 8

ankoles [38]

Answer:

please check the attached file for the answer

Step-by-step explanation:

the explanation is in the attached file

8 0

3 years ago

A photographic negative is 3 cm by 2 cm. A similar print from the negative is 9cm long on its shorter side. What is the length o

lbvjy [14]

Answer:

13.5 cm

Step-by-step explanation:

9 divided by 2 = 4.5 *There's a 4.5 increase

3 X 4.5 = 13.5

The new print is 13.5cm by 9cm

5 0

4 years ago

Determine the volume of the figure. Use 3.14 for π. Round your answer to the nearest tenth. Show all of your work.

Ostrovityanka [42]

Answer:

1985 cubic units (written as un. with the cubed exponent)

Step-by-step explanation:

First, you find the volume of the cylinder

Here's the formula:

$V=\pi r^{2}h\\V=volume\\r=radius\\h=height$

Now, you plug in and solve.

$V=(3.14)(7.2^{2})(7.4)\\V=(3.14)(51.84)(7.4)\\V=(162.7776)(7.4)\\V=1204.55424\\rounded:\\V=1204.6$

Then, you find the volume of the dome.

Here's the formula:

$volume/of/a/sphere=\frac{4}{3}\pi r^{3}\\volume/of/a/dome:\\V=\frac{2}{3}\pi r^{3} \\V=volume\\r=radius$

Now, you just plug in and solve.

$V=(\frac{2}{3})(\pi)(r^{3})\\V=(\frac{2}{3})(3.14)(7.2^{3})\\V=(\frac{2}{3})(3.14)(373.248)\\V=(2.093)(373.248)\\V=781.208064\\rounded:\\V=781.2$

Finally, you add them together, and there's your answer!

$1204.6+781.2=1985.8$

Hope this helped!

<em>brainliest?</em>

8 0

3 years ago