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taurus [48]
3 years ago
7

1. Write an equation of the line in slope-intercept form that passes through (4.2) and (8.–2).

Mathematics
1 answer:
12345 [234]3 years ago
4 0

Answer:

its (8+4)/(-2-2) so the slope is -3x

Step-by-step explanation:

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How many 4-digits number can be formed out of 0,1,2,3,5,7 and 8. If:
Bad White [126]

Answer:

Below in bold.

Step-by-step explanation:

No repetition.

There are a total of 7 numbers.

For the number to be even it must end in 0,  2 or 8.

The other 3 numbers will be the number of permutations of 3 from  the 6 other numbers.

Number of 4 digit numbers ending in 0

= 6P3 = 6! / 6-3!

= 120.

Now the number could also end in 2 or 8,

so there are 3*120 = 360 4-digit even numbers (no repetition).

With repetition.

There are 3 * 7^3 = 1029  with repetition.

5 0
3 years ago
How many secare in 35 min?
Wewaii [24]
60 seconds are in each minute. To find the number of seconds in 35 minutes, you multiply 60 (seconds) by 35 (minutes.)  The answer is 2,100 seconds. 
8 0
4 years ago
Which numbers below belong to the set of the equation below
masya89 [10]
This post is not attached to anything. If you repost this with a picture I can try to answer your question.
7 0
3 years ago
What are the zeros of the quadratic function f(x) = 2x2 – 10x – 3?
Natasha2012 [34]

Answer:

x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}  are zeroes of given quadratic equation.

Step-by-step explanation:

We have been a quadratic equation:

2x^2-10x-3

We need to find the zeroes of quadratic equation

We have a formula to find zeroes of a quadratic equation:

x=\frac{b^2\pm\sqrt{D}}{2a}\text{where}D=\sqrt{b^2-4ac}

General form of quadratic equation is ax^2+bx+c

On comparing general equation with b given equation we get

a=2,b=-10,c=-3

On substituting the values in formula we get

D=\sqrt{(-10)^2-4(2)(-3)}

\Rightarrow D=\sqrt{100+24}=\sqrt{124}

Now substituting D in  x=\frac{b^2\pm\sqrt{D}}{2a} we get

x=\frac{(-10)^2\pm\sqrt{124}}{2\cdot 2}

x=\frac{100\pm\sqrt{124}}{4}

x=\frac{100\pm2\sqrt{31}}{4}

x=\frac{50\pm\sqrt{31}}{2}

Therefore, x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}



5 0
3 years ago
Read 2 more answers
Quotient of two more than a number and eight
aev [14]
Answer:  This would be expressed as:   " (x + 2) / 8 " .

5 0
3 years ago
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