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3 years ago

The square of a number is 6 more than 5 times the number. What is the number?

1 answer:

8 0

X^2 = 6+5x => x^2 - 5x - 6 = 0 => (x-6)(x+1)=0

This riddle has two solutions:

x=6 or x=-1

indeed 6*6 = 36 = 5*6+6
indeed -1*-1 = 1 = 5*-1 + 6

The -1 is kind of a surprise, isn't it?

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Which value represents the slope of the line that has an x-intercept at (-4,0) and a y-intercept at (0, -12) in the coordinate p

Lesechka [4]

To find the gradient you do change in y/change in x so...

-12 - 0
————- = -12/4 = -3
0 - - 4

Hope this helps! Any questions let me know :)

6 0

3 years ago

50 Points What is the value of r? 6.4r−5.9r=−3.25 Question 1 options: A -6.5 B 6.5 C -3

Oliga [24]

Answer:

Option A. -6.5

Step-by-step explanation:

we have

$6.4r-5.9r=-3.25$

Solve for r

That means ---> isolate the variable r

Combine like terns left side of the equation

$0.5r=-3.25$

Divide by 0.5 both sides

$0.5r/0.5=-3.25/0.5$

$r=-6.5$

4 0

3 years ago

a bird flies from the bottom of a canyon that is 81.8 feet below sea level to a nest that is 596 3/5 feet above sea level. what

ELEN [110]

Subtract.

596 3/5 - (-81.8) [81.8 is below sea level so it is negative]
566.6 + 81.8 [Convert to decimal and distribute negative]
= 678.4 feet

6 0

3 years ago

You spin each spinner and find the sum. How many different sums are possi

kumpel [21]

Answer:

Step-by-step explanation:

fe . seFgrgaerugaieurhrgHRGIQEHRIUGA EIUG IAUERG

3 0

3 years ago

Help me pls UoU Uwu<br> \djjn

Nataly [62]

Answer:

y = 4x + 14

Step-by-step explanation:

slope-intercept form: y = mx + b

Slope formula: $\frac{y2-y1}{x2-x1}$

To write the equation in y = mx + b form, we need to find the slope(m) and the y-intercept(b) of the equation.

To find the slope, take two points from the table(in this example I'll use points (0, 14) and (1, 18)) and input them into the slope formula:

$\frac{18-14}{1-0}$

Simplify:

18 - 14 = 4

1 - 0 = 1

$\frac{4}{1}=4$

The slope is 4.

To find the y-intercept, input the values of the slope and one point(in this example I'll use point (1, 18)) into the equation format and solve for b:

y = mx + b

18 = 4(1) + b

18 = 4 + b

14 = b

The y-intercept is 14.

Now that we know the slope and the y-intercept, we can write the equation:

y = 4x + 14

3 0

3 years ago