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Tema [17]
2 years ago
12

Solve the system of equations by graphing y=x y=-3x+4

Mathematics
1 answer:
Lesechka [4]2 years ago
6 0

Answer:

(1,1)

Step-by-step explanation:

Since we have a defined variable, we can use substitution to solve.

If y=x, that means that we can substitute x for anywhere we have y.

y=-3x+4

x=-3x+4

Then, we can combine like terms and simplify the equation to find x.

(x+3x) = (-3x+3x) +4

4x=4

(\frac{4x}{4}) = (\frac{4}{4})

So, x=1.

y=x, therefore y also equals 1.

Lines y=x and y=-3x+4 meet at point (1,1).

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Express 0.5401 in scientific notation
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Answer:

5.401×10^-1

Step-by-step explanation:

You move the decimal over one to get5.401×10^−1

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2 years ago
What is the difference 6 - 3 2/5 =
Luba_88 [7]
It depends on what the question looks like. If it looks like this:
(6-3)(2/5)=
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3 years ago
8.7 _____ 8.5<br> &gt;<br> &lt;<br> =<br> which one this is a quiz for you!
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Answer:

>

Step-by-step explanation:

7 0
3 years ago
Write a unit test for addinventory(). call redsweater.addinventory() with parameter sweatershipment. print the shown error if th
Katena32 [7]
<span>#include <iostream> using namespace std; class InventoryTag { public: InventoryTag(); int getQuantityRemaining() const; void addInventory(int numItems); private: int quantityRemaining; }; InventoryTag::InventoryTag() { quantityRemaining = 0; } int InventoryTag::getQuantityRemaining() const { return quantityRemaining; } void InventoryTag::addInventory(int numItems) { if (numItems > 10) { quantityRemaining = quantityRemaining + numItems; } } int main() { InventoryTag redSweater; int sweaterShipment = 0; int sweaterInventoryBefore = 0; sweaterInventoryBefore = redSweater.getQuantityRemaining(); sweaterShipment = 25; cout << "Beginning tests." << endl; // FIXME add unit test for addInventory /* Your solution goes here */ cout << "Tests complete." << endl; return 0; }</span>
5 0
3 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
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