All categories

3 years ago

If y= -4 when x=2, find y when x=-6.

Mathematics

2 answers:

vampirchik [111]3 years ago

7 0

Answer: erbgv

Step-by-step explanation:

chubhunter [2.5K]3 years ago

6 0

Answer:

y=12

Step-by-step explanation:

2*-2=-4

-6*-2=12

y=12

You might be interested in

85% of what number is 10.2

Free_Kalibri [48]

Answer:

n = 12

Step-by-step explanation:

85%×n = 10.2

85n/100 = 10.2

85n = 1020

n = 1020 : 85

n = 12

7 0

3 years ago

Arbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of drinks sh

pashok25 [27]

If ice tea is lets say y (ice tea = y) and water is x (water = x) then the answer is
1.25x + 1.49y = 100
the error is that she forgot the second variable(y).

8 0

2 years ago

QUICK Find the area of the shaded region. Use 3.14 for pi.

ivolga24 [154]

Answer:

The shaded region is $353.25m^2$ .

Step-by-step explanation:

The area of a circle is defined by the multiplication of the square of its radius, or half its diameter, by pi, or simply $A=\pi r^2$ .

15m is the radius of the large circle, and also the diameter of the smaller circles.

The area of the shaded region will be the subtraction of the area of the two smaller circles from the area of the larger circle.

As such:

$A=\pi(15)^{2}-2(\pi(\frac{15}{2} )^{2})\\\\A=(3.14)(15)^{2}-2(3.14)(\frac{15}{2} )^{2}\\A=706.5-353.25\\A=353.25$

4 0

2 years ago

Read 2 more answers

2. Why does the sin Ɵ = cos (90 – Ɵ)? Show steps

Troyanec [42]

Answer:

R.H.S:

= cos ( 90 - theta )

= cos (90) cos(theta) + sin(90) sin(theta)

= 0 + sin(theta) =>[ cos(90) = 0 , sin(90) = 1]

= sin(theta)

8 0

2 years ago

5c squared- d squared+3/2c - 4d...c= -1. d= -4

riadik2000 [5.3K]

For this case we have the following expression:

$5c ^ 2-d ^ 2 + \frac {3} {2} c-4d$

We must find the value of the expression when:

$c = -1\\d = -4$

Substituting we have:

$5 (-1) ^ 2 - (- 4) ^ 2 + \frac {3} {2} (- 1) -4 (-4) =\\5 (1) -16- \frac {3} {2} + 16 =\\5-16- \frac {3} {2} + 16 =\\-11- \frac {3} {2} + 16 =\\- \frac {25} {2} + 16 =\\\frac {-25 + 32} {2} =\\\frac {7} {2}$

Finally, the value of the expression is:

$\frac {7} {2}$

ANswer:

$\frac {7} {2}$

5 0

3 years ago