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Lostsunrise [7]
4 years ago
7

If x = 2, then x second power - 3x -+5

Mathematics
1 answer:
ICE Princess25 [194]4 years ago
3 0
X^2 - 3x + 5
2^2 - 3(2) + 5
4 - 6 + 5
3
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Which triangles are right​ triangles? Select all that apply.
Setler79 [48]

Answer:

triangle 1, triangle 3,

Step-by-step explanation:

Triangle 1= 14^{2} + 24^{2} = 772\\196+ 576 = 772

Triangle 2=  is wrong

Triangle 3= 11^{2} + 22^{2} = 605\\121+ 484= 605

Triangle 4= is wrong.

7 0
3 years ago
Which function has only one x-intercept at (-6, 0)?
Lelu [443]

Answer:

<h2>The function f(x) = (x - 6)(x - 6) has only one x-intercept. But at (6, 0) not at (-6, 0).</h2>

Step-by-step explanation:

The intercept form of a quadratic equation (parabola):

y=a(x-p)(x-q)

p, q - x-intercepts

Therefore

The function f(x) = x(x - 6) = (x - 0)(x - 6) has two x-intercepts at (0, 0) and (6, 0)

The function f(x) = (x - 6)(x - 6) has only one x-intercept at (6, 0)

The function f(x) = (x + 6)(x - 6) = (x - (-6))(x - 6)

has two x-intercept at (-6, 0) and (6, 0)

The function f(x) = (x + 1)(x + 6) = (x - (-1))(x - (-6))

has two x-intercepts at (-1, 0) and (-6, 0).

6 0
4 years ago
Read 2 more answers
Find the range for the domain {-3, 1,4.5} f(x) = 2x
exis [7]

Answer:

Step-by-step explanation:

f(x) = 2x2

Range = {f(-3), f(1), f(4), f(5)} = {18, 2, 32, 50}

5 0
3 years ago
What would be the expression after distributing, 3(x+4)?
boyakko [2]

Answer:

3x+12

Step-by-step explanation:

You need to do 3 times x which equals 3x and then do 3 times 4 and get 12 so it ends up as 3x+12

hope this helps

stay safe:)))

brainliest is appreciated

this person keeps copying and reporting my questions and then saying i copied them so im sorry if that happens :(

4 0
4 years ago
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Kenneth ran a marathon (26.2) miles) in 5.5 hours. What was Kenneth’s average speed? (Round your answer to the nearest tenth.)
Serga [27]

Answer:

4.8 miles per hour.

Step-by-step explanation:

Average speed=Total distance/Time taken

=26.2miles/5.5hour

=4.8 miles per hour

3 0
3 years ago
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