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tester [92]
3 years ago
14

Can u answer all three pls

Mathematics
2 answers:
Kipish [7]3 years ago
7 0
2nd question is 8x4=32 because perimeter of the square is equal to dimension x4 or side + side+side + side . I hope you understand that:)
faust18 [17]3 years ago
5 0

Answer:

1. 28ft

2. 26ft

3. 20ft

Step-by-step explanation:

here ya go

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The rectangle below has an area of 35x^3square meters and a width
arsen [322]

Answer:7x^2

Step-by-step explanation:

3 0
3 years ago
Assuming that there are no hidden cubes, what is the front orthographic view of the diagram?
Makovka662 [10]

Answer:

the visible number of cubes is 7

Step-by-step explanation:

Assuming that there are no hidden cubes, the # of visible cubes is 7

7 0
2 years ago
What is the equation of the line that passes through the point (-2,0) and has a slope of -2?​
prohojiy [21]

Answer:

so the equation is y=-2x-4

Step-by-step explanation:

sub the points in the equation to find the y-intercept

y=x(-2)+b

0=-2(-2)+b

0=4+b

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6 0
3 years ago
Find the discriminant and the number of real roots for this equation.
Margaret [11]

Our discriminant is 0 so, 4x^2 + 12x + 9 = 0 has one real root.

Option C is correct.

Step-by-step explanation:

we need to find the discriminant and the number of real roots for the following equation:

4x^2 + 12x + 9 = 0

The discriminant is found by using square root part of quadratic formula:

b^2-4ac

where b =12, a=4 and c=9

Putting values:

=b^2-4ac\\=(12)^2-4(4)(9)\\=144-144\\=0

To find out the number of real roots using discriminant we have following rules:

  • if discriminant b^2-4ac >0 then 2 real roots
  • if discriminant b^2-4ac =0 then 1 real root
  • if discriminant b^2-4ac <0 then no real roots

Since our discriminant b^2-4ac is 0 so, 4x^2 + 12x + 9 = 0 has one real root.

Option C is correct.

Keywords: discriminant

Learn more about discriminant at:

  • brainly.com/question/8196933
  • brainly.com/question/9328925
  • brainly.com/question/4853862

#learnwithBrainly

6 0
3 years ago
(blank) ÷ by 7 &gt; 800 send help...
Anika [276]

Answer:

(blank) > 5600

Step-by-step explanation:

8 0
3 years ago
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