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finlep [7]
3 years ago
6

Please help! 10 points

Mathematics
2 answers:
Julli [10]3 years ago
6 0
For
a
x
2
+
b
x
+
c
=
0
, the values of
x
which are the solutions to the equation are given by:
x
=
−
b
±
√
b
2
−
4
a
c
2
a
Substituting
9
for
a
;
6
for
b
and
1
for
c
gives:
x
=
−
6
±
√
6
2
−
(
4
⋅
9
⋅
1
)
2
⋅
9
x
=
−
6
±
√
36
−
36
2
⋅
9
x
=
−
6
±
√
0
2
⋅
9
x
=
−
6
±
0
2
⋅
9
x
=
−
6
18
x
=
−
1
3

RUDIKE [14]3 years ago
4 0

Answer:

1 real soultion

Step-by-step explanation:

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0.8x = 12. Solve for X. PLEASEEE HELPPP!!
kenny6666 [7]

Answer:

x-15

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is 85 divided by 5 in distributive property
Lilit [14]

Answer:

17

Step-by-step explanation:

85 divided by 5 in distributive property

85 can be break into 80 and 5

80+5 is 85

Now we divide each term by 5

\frac{85}{5} =\frac{80+5}{5} =\frac{80}{5} +\frac{5}{5}

Denominator 5 is distributed 5 inside the numerator

\frac{85}{5} =\frac{80}{5}+\frac{5}{5}=16+1=17

17 is the final answer

5 0
3 years ago
Read 2 more answers
Is 56/7 a rational number or
Sati [7]

Answer:

Yes

Step-by-step explanation:

The definition of a rational number is a number that can be represented as a fraction. Since 56/7 is a fraction it must be a rational number. An irrational number is a number that cannot be represented as a fraction because it never ends and repeats without a pattern forever. An example of this is pi because pi can never exactly be represented as a fraction.

4 0
3 years ago
R + 8 > 21 what the ansr
Ksivusya [100]

Answer: r>13

Step-by-step explanation:

The sign is less than so r +8 has to be 20 or less.

3 0
3 years ago
This is for trigonometry
Ilya [14]

a) x-intercepts (where it passes through the x-axis) are: 0.05, 0.745, 0.8, 1.45, 1.55, 2.2

The x-intercepts represent when height = 0 and y-intercepts represent when time = 0

b) The graph is positive when height is positive: [0.05, 0.745] U [0.8, 1.45] U [1.55, 2.2]

c) The graph is negative when height is negative: [0, 0.05] U [0.745, 0.8] U [1.45, 1.55] U [2.2, ∞)

d) The average rate of change is the slope (rise/run) between the coordinates when x = 0.75 <em>(y = -5)</em>  and when x = 1.125 <em> (y = 1.7).  </em>

slope = \frac{1.7 - (-5)}{1.125 - 0} =  \frac{6.7}{1.125} = 6

8 0
3 years ago
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