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wel
3 years ago
11

Need answer ASAP!!!!!!!!!

Mathematics
1 answer:
seropon [69]3 years ago
3 0
The answer would be x= 7,-7
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Which method is the most efficient method to use to solve 2x^2+4x-3=0?
neonofarm [45]
The best method would be to factor.
5 0
4 years ago
Alex bought a television set for $900 and he sold it for $1125. What is the percent he sold the tv set?
Setler79 [48]

Answer:

25

Step-by-step explanation:

1125-900=225

225/900×100=25

6 0
3 years ago
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62%
Svetlanka [38]

Answer:

(a) Sequence: -1, 1, 3

(b) nth term: T_n = 4+ 5n

Step-by-step explanation:

Solving (a)

Given

T_n = 2n - 3

The first 3 terms.

When n = 1

T_1 = 2*1 - 3

T_1 = 2 - 3

T_1  = -1

When n = 2

T_2 = 2*2 - 3

T_2 = 4 - 3

T_2 = 1

When n = 3

T_3 = 3*2 - 3

T_3 = 6 - 3

T_3= 3

So, the first three terms are:

Sequence: -1, 1, 3

Solving (b)

Given

Sequence: 9,14,19,24

Required

The nth term

The sequence is arithmetic.

So, first calculate the common difference (d)

d = 14 - 9

d = 5

The nth term is then calculated as:

T_n = a + (n - 1) * d

Where

a =First\ term

So:

a = 9 and d = 5

T_n = 9 + (n - 1) * 5

T_n = 9 + 5n - 5

Collect like terms

T_n = 9 - 5+ 5n

T_n = 4+ 5n

6 0
3 years ago
Solve this inequality.
Sergeu [11.5K]

Answer:

x < -7

Step-by-step explanation:

-5x + 7 > 42

Subtract 7 from each side

-5x + 7-7 > 42-7

-5x > 35

Divide each side by -5, remembering to flip the inequality

-5x/-5 <35/-5

x < -7

7 0
3 years ago
Write the equation of the line that contains the given point and has the given slope. (–1, 4), slope is –3
charle [14.2K]

\bf (\stackrel{x_1}{-1}~,~\stackrel{y_1}{4})~\hspace{10em}slope = m\implies -3\\\\\\ \begin{array}{|c|ll}\cline{1-1}\textit{point-slope form}\\\cline{1-1}\\y-y_1=m(x-x_1)\\\\\cline{1-1}\end{array}\implies y-4=-3[x-(-1)]\\\\\\y-4=-3(x+1)\implies y-4=-3x-3\implies y=-3x+1

3 0
3 years ago
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