3 years ago

Are the figures similar, congruent or neither?

1 answer:

4 0

The shapes are similar and not congruent because one is 5 units wide while one is less than 5 units. They are the same exact shape but different size making them similar.

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9. For the function defined by the equation y = 2x^2 -10, which of the following represents the

Solnce55 [7]

Answer:

Step-by-step explanation:

y = 2x^2 -10

Let x = -3

y = 2( -3)^2 -10

y = 2 (9) -10

y = 18-10

y = 8

8 0

3 years ago

How would I solve 7r=-7/2? I know the answer is -1/2 I just don't understand how to get -1/2 as my answer.

Sonja [21]

$7r=-\dfrac{7}{2}\\
r=-\dfrac{7}{2}\div7\\
r=-\dfrac{7}{2}\cdot\dfrac{1}{7}\\
r=-\dfrac{1}{2}$

8 0

3 years ago

Explain, in your own words, the steps necessary to solve a system of equations

Lady_Fox [76]

Step-by-step explanation:

you solve for one of the variable in terms of the 2nd variable in one equation. then you substitute that equation for the variable in the second equation. since it now only has one variable you should be able to solve for the variable.

5 0

3 years ago

Use differences to fins a pattern in the sequence 0,12,72,240,598,1250,2322

sergiy2304 [10]

Answer:

8th term is 3980.

Step-by-step explanation:

0 12 72 240 598 1250 2322

Differences in successive terms

are:

12 60 168 358 652 1072

48 108 190 294 420

60 82 104 126

22 22 22

So calculating the 8th term , working from the last line to the first:

126 + 22 = 148

148 + 420 = 568

1072 + 568 = 1658

Finally the 8th number = 2322 + 1658 = 3980

7 0

2 years ago

(ii) The probability the tiles are both the same colour is 16 45 Show that x2 - 6x + 5 = 0.<br>

nika2105 [10]

Answer:

i think probably x = 1 or 5

Step-by-step explanation:

x²-6x+5 =0

so (x-1)(x-5) = 0

so x = 1 or 5

6 0

2 years ago