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3 years ago

What do you think the difference is between a shape being congruent or similar?

1 answer:

6 0

<span>Congruent figures have the same shape and are the exact same size. Similar figures have the same shape, but not necessarily the same size. ... The corresponding angles of similar figures are congruent.</span>

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Answer two questions about Systems A and B:System A x+3y=−9 2x+y=4 System B 3x+4y=−9 2x+y=4

Jet001 [13]

Answer:

A=(21/5,-22/5) B=(5,-6)

Step-by-step explanation:

6 0

2 years ago

ILL GIVE BRANILEST PLEASE HELP!

mezya [45]

Answer:

$x=60^{\circ}$

Step-by-step explanation:

The angle formed by $48+x$ and the angle marked as $72^{\circ}$ are co-interior angles and therefore must be supplementary (add up to 180 degrees).

Therefore, we have:

$48+x+72=180,\\x+120=180,\\x=\boxed{60^{\circ}}$

7 0

2 years ago

What is distributive property and one example of it?

mestny [16]

Example of distributive property: 4(2+3)
The first step is to multiply the 4 and the 2
It will now look like 8+4(3)
Now you must multiply the 4 and the 3
Then it will look like 8+12
In which 8+12=20

6 0

3 years ago

If it costs $3 for 5 cookies, find the unit rate.

LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

6 0

2 years ago

Plss help me do this

KATRIN_1 [288]

Answer:

x1 = -5

x2 = 3

Step-by-step explanation:

You have the following equation:

$\frac{6}{x}-\frac{4}{5}=\frac{2x}{5}$ (1)

To find the solutions of the equation (1) you first eliminate the denominators of the equation, by multiplying the m.c.m, which is 5x, as follow:

$30-4x=2x^2$

Next, you write the previous equation in the general form ax^2 +bx+c=0, as follow:

$2x^2+4x-30=0$

Next, you use the quadratic formula to find the solutions:

$x_{1,2}=\frac{-b\pm \sqrt{b^2-4(a)(c)}}{2a}\\\\a=2;\ \ b=4;\ \ c=-30\\\\x_{1,2}=\frac{-4\pm \sqrt{4^2-4(2)(-30)}}{2(2)}\\\\x_{1,2}=\frac{-4\pm16}{4}\\\\x_1=-5\\\\x_2=3$

Then, the solutions for the given equation are x1=-5 and x2=3

8 0

3 years ago