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3 years ago

What is the slope of the line that passes through the points (-10, -8) and

Mathematics

2 answers:

galina1969 [7]3 years ago

7 0

Answer:

Slope is -4

Step-by-step explanation:

shusha [124]3 years ago

7 0

Answer:

4/-1 or -4

Step-by-step explanation:

y2-y1/x2-x1

-8-(-16) / -10-(-8)

8. -2

8/-2

simplified: 4/-1 or -4

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Which of the following is equivalent to the radical expression below?

SCORPION-xisa [38]

For this case we must indicate an expression equivalent to:

$\sqrt {10x ^ 7}$

By definition of properties of powers and roots we have that:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

Then, we can rewrite the expression as:

$10 ^ {\frac {1} {2}} * x ^ {\frac {7} {2}}$

Answer:

OPTION A

6 0

3 years ago

Richard had a balance of −$322.25 in his account, and Scott had a balance of −$241.75 in his account. Which statement explains w

vitfil [10]

Richard owns more money to the bank because he spent more money. And now he has to pay it back or he will have bad credit.

7 0

3 years ago

Read 2 more answers

The equation for a parabola has the form y=ax2+bx+c, where a, b, and c are constants and a≠0. find an equation for the parabola

IRISSAK [1]

The equation of parabola is

$y= ax^2 + bx +c$

For point (-1,-9), equation of parabola is

$-9 = a(-1)^2 +b(-1)+c
\\
-9 = a -b+c$

For point (1,7), equation of parabola is

$7 = a(1)^2 + b(1)+c
\\
7 = a + b +c$

For point (-6,-14), equation of parabola is

$-14 = a(-6)^2 +b(-6)+c
\\
-14 = 36a -6b +c$

So we have three equations , which are

$a - b + c =-9,
\\
a + b + c = 7
\\
36a -6b+c = -14$

Subtracting first two equation will give

$-2b = -16
\\
b=8$

Subtracting second and third equation gives

$a+b+c-36a+6b-c = 7+14
\\
-35a +7b = 21
\\
-5a + b =3$

Substituting 8 for b, we will get

$-5a + 8 =3
\\
-5a = -5
\\
a =1$

back substituting 8 for b and 1 for a, we will get

$1+8+c = 7
\\
c = -2$

So we have

$a=1, b=8 and c=-2$

Therefore required equation is

$y= x^2 +8x-2$

7 0

3 years ago

MovieFlix charges an annual fee of $35 plus $3.50 per movie you stream online. CineView has no annual fee, but charges $4.25 per

vovikov84 [41]

Answer:

Step-by-step explanation:

y= 3.50m + 35

y= 4.25m

4.25m = 3.50m + 35

.75m = 35

m = about 47 movies

3 0

4 years ago

1. Luis made a $150 bank deposit using $5 bills and $10 bills. He gave the teller a total of 24 bills. How many $10 bills were i

goldfiish [28.3K]

Answer:

6 $10 bills

Step-by-step explanation:

First you have to make a system of equations like such

5x + 10y = 150

x + y = 24

Now you can use any strategy to simplify it but I'll use multiplication and the subtraction:

5x + 10y = 150 - 5x + 5y = 120 = 5y = 30 this simplified is y = 6. You then substitute 6 for y in either equation. x + 6 = 24 and make it on opposite sides. x = 18.

So 18 $5 bills and 6 $10 bills

4 0

3 years ago