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Leviafan [203]
2 years ago
8

The symbol used to show that you are taking a root of something

Mathematics
2 answers:
konstantin123 [22]2 years ago
8 0
the little check with the dash on top
lesya692 [45]2 years ago
8 0
The symbol for taking the square root of a number is √. E.g √4=2
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Please help mee, (30 points will give brainliest!!!)
Vadim26 [7]

Answer:

-4

+3

12

-0.5, 12.25

x = -0.5

Step-by-step explanation:

The x intercepts are the values of x when y = 0 ie the roots of the equation
-x^2 -x +12 = 0

or

x^2  + x  - 12 = 0

We can re-write the above as:
(x+4) (x-3) = 0
This gives the two roots as x = -4 and x = +3. Leftmost (smallest) root is -4 and rightmost(largest) root is +3

y intercept is when x = 0. Plugging into the original equation, y value at x = 0 is 12

Vertex x value is given by the formula -b/2a where a is the coefficient of x^2 and b the coefficient of x

Here a = -1, b= -1 so vertex x value = - (-1)/(-1).2 = - 1/2 = -0.5

Plugging this value of x into the original function gives the vertex y value
y = - (0.5^{2}) - (-0.5) + 12\\= -0.25 + 0.5 + 12 = 12.25

The line of symmetry is the vertical line corresponding to the vertex x value so line of symmetry is at x = -0.5

The graph of the quadratic function shows these values

3 0
2 years ago
Michael gets 52% better at press<br> ups. He used to be able to do 62.<br> How many can he do now?
maria [59]

Answer:

94 press ups

Step-by-step explanation:

62 x 1.52 = 94.24

               ≈94

4 0
2 years ago
-3 + 9x = -6 can somebody help me on this question ASAP please.
lions [1.4K]

Answer:

Step-by-step explanation:

i assume you need x

-3+9x=-6

add 3 on both sides

9x=-6+3

9x=-3

x=-3/9=-1/3

4 0
3 years ago
PLEASE HELP NEED THIS NOW.
katovenus [111]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
This coordinate plane shows the journey of a plane between two cities. The journey starts from City A, indicated by a green poin
grandymaker [24]
<h3>Answer:  Choice C</h3>

Started in Quadrant II and ended in Quadrant IV.

==========================================================

Explanation:

Refer to the diagram below. It shows how the four quadrants are labeled using roman numerals. We start in the upper right corner (aka northeast corner) and work counterclockwise when labeling quadrant I, II, III, and IV in that order.

The green point A is located in quadrant II in the northwest. Meanwhile point B in red is in the southeast quadrant IV.

Therefore, we started in <u>quadrant II</u> and ended in <u>quadrant IV</u> which points us to <u>choice C.</u>

6 0
2 years ago
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