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Sav [38]
3 years ago
8

Answer circled questions, please

Mathematics
2 answers:
sergiy2304 [10]3 years ago
5 0
Here are my answers, hope it helps :)

Harlamova29_29 [7]3 years ago
3 0

#1: 4(x + 3)

We just have to distribute the 4 throughout the rest of the problem. So, (4 times x) + (4 times 3) = 4x + 12

#2: -7(4 - y)

This is the same concept, but with a negative sign at the front. So, (-7 times 4) - (-7 times y) = -28 + 7y

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Please help!!<br> Find the zeros and vertex of the parabola
Sergeeva-Olga [200]

Answer:

Vertex: (1/2, 16)

Zeros: t  =  − 1 /2, 3/2

Step-by-step explanation:

4 0
3 years ago
Is this correct? Yes or nah
lara31 [8.8K]
There are 20 squares total you shaded 5
\frac{5}{20} = \frac{1}{4} = 25\%
5 0
3 years ago
Help, ASAP! Please!!
Yuliya22 [10]

Answer:

a. Parallel

b. Not parallel

Step-by-step explanation:

Systems which have no solutions are parallel lines. These lines do not intersect and therefore have no solution. Remember, parallel lines have the same slope. Compare the slope in each equation when in y=mx+b format to see if they are parallel.

a. y= 2x + 3                                                  y-2x=-3 becomes y = 2x - 3

m = 2                                                            m= 2

The slopes are the same so these are parallel lines.

b. 3x + y = 2 becomes y= -3x + 2               y = 1/3 x + 1/2

m = -3                                                          m= 1/3

The slopes are different so this is not parallel.

Since -3 and 1/3 are the negative reciprocals of each other. These lines are actually perpendicular.

7 0
3 years ago
What percent of 30 is 33
Llana [10]
Hi!

To solve this we can set up a proportion and cross multiply.

\frac{33}{30}  \frac{x}{100}

33 x 100 = 3300
3300/30 = 110

The answer is 110%

Hope this helps! :)
3 0
3 years ago
3x^2-12x-21=0 solve by completing the square
morpeh [17]

Answer:

x = 2 ± √11 (I believe)

Step-by-step explanation:

3 0
3 years ago
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