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3 years ago

Solve the system of equations by substitution. (4, -2) (6, 0) no solution coincident

Mathematics

1 answer:

zimovet [89]3 years ago

8 0

Answer:

Step-by-step explanation:

The sum of a triangle's interior angles is 180

. From the figure, we can see that one of the angles is a right angle. The remaining two are x and y. By adding these together, we can equate their sum with 180.

x+y+90=180b

Using the equation found in part A and the given equation, we can form a system of equations.

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PLEASE ANSWER FAST IT WILL HELP ME SO MUCH

Sunny_sXe [5.5K]

Answer:

I believe it's enlargement

Step-by-step explanation:

because you have a positive scale factor and it goes to the right 3 and up 4

7 0

3 years ago

Find the ratio of the volume of one sphere to the volume of the right cylinder

yarga [219]

Answer:

Step-by-step explanation:

<em>Let $r$ be the radius of one sphere.</em>

Volume of sphere is $V=\frac{4}{3}\pi r^3$

Since radius is r, the height of the cylinder will be $4r$

Also, the cylinder has the same radius as the sphere: $r$

Volume of Cylinder is $V=\pi r^2 h$

Plugging in the values we get: $V=\pi (r)^{2}(4r)=4\pi r^3$

<u>Ratio of volume of 1 sphere to volume of cylinder is</u>:

$\frac{\frac{4}{3}\pi r^3}{4\pi r^3}=\frac{\frac{4}{3}}{4}=\frac{4}{3}*\frac{1}{4}=\frac{1}{3}$

The ratio is 1:3

Answer choice B is right.

5 0

3 years ago

May buy a television for $330. The tax rate is 8%. What is the total amount paid for the television?

8090 [49]

Hello! The tax rate is 8%. To find the total price paid for the television, let's first add 1 to the percentage in decimal form. 8% is 0.08. 1 + 0.08 is 1.08. Multiply that number by 330 to get 356.4. There. May pays a total of $356.40 for the television.

Note: When it comes to skipping straight to the total amount with tax, always add 1 to the tax rate (tax rate should be in decimal form). This will take you straight to the answer and save you some time and paper.

7 0

4 years ago

A poster is shown below: what are the dimensions if the poster enlarged by a factor of 7/2

Lilit [14]

If the poster is 6 by 18, and it increases by a factor 7/2, then you multiply both the height and length by 7/2:
$6 \times \frac{7}{2} = 21 \\ 18 \times \frac{7}{2} = 63$
Therefore, the new height is 21, and the new length is 63.

8 0

3 years ago

3 tickets to the museum cost $12.75. At this rate, what is the cost of 1 ticket? *

Shtirlitz [24]

Answer:

$4.25

Explanation:

You need to divide 12.75 by 3 in order to find the price of one ticket.

3 0

4 years ago