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mafiozo [28]
2 years ago
12

1. You have two playing cards with a sum of (−12) in your hand.

Mathematics
1 answer:
Verdich [7]2 years ago
3 0
Yes the person is right I was trying to type it but they beat me to it
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1. Imagine a 10 by 10 square with the outside edge colored red. Without using paper or counting them individually how many red s
Allushta [10]

Answer:

36, 396, thats all i gots

Step-by-step explanation:

8 0
3 years ago
F(x)= x^2 -16x+63 find the x-intercepts of this function
Ahat [919]

Answer:

The x-intercepts will be, x= 7 or x =9

Step-by-step explanation:

f(x)= x^2 -16x+63

At the x-intercept, f(x) is zero.

Therefore;

x² - 16x + 63 = 0

solving it quadratically;

product = 63

Sum       = -16

x² - 9x - 7x + 63 = 0

x(x-9) - 7( x-9) = 0

(x-7) (x-9) = 0

x = 7 or x = 9

Therefore;

The x-intercepts will be, x= 7 or x =9

8 0
2 years ago
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Which of the following is a solution of x2 + 6x = −18?
Rus_ich [418]
X= 9/4 i think i dont know
6 0
2 years ago
Who is good at math I really need help
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Me I am very good at math I am a tutor
6 0
3 years ago
Find the equation of the line passing through point (4,2) and perpendicular to AB
Setler [38]

Answer:

a. -⅓

b. 3

c. y = 3x - 10

Step-by-step explanation:

a. Gradient of line AB:

A(1, 3), B(7, 1)

Gradient = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 - 3}{7 - 1} = \frac{-2}{6} = -\frac{1}{3}

Gradient (m) = -⅓

b. The of the line that is perpendicular to line AB would be the negative reciprocal of the gradient of line AB.

Thus, the negative reciprocal of -⅓ = 3

Gradient of the line perpendicular to line AB = 3

c. Equation of the line that passes through (4, 2) and is perpendicular to line AB:

We can write the equation using the point-slope form equation, y - b = m(x - a), where,

(a, b) represents a point on the line, and,

m = gradient/slope

We know that the gradient/slope (m) = 3

Also, a point, (a, b) = (4, 2).

Therefore, substitute a = 4, b = 2, and m = 3 into y - b = m(x - a)

Thus:

y - 2 = 3(x - 4)

y - 2 = 3x - 12

Add 2 to both sides

y = 3x - 12 + 2

y = 3x - 10

5 0
2 years ago
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