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tankabanditka [31]
3 years ago
10

-2x+y=7y=-4x-11answer choicesa.(3,1)b.(10,-51)c.(0,7)PLEASE SHOW WORK!!

Mathematics
1 answer:
stiv31 [10]3 years ago
8 0
We can use substitution to insert one equation into the other
so then it's -2x+(-4x-11)=7
then it becomes -6x-11=7
then -6x=18
then our answer, x=-3
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The temperature at a point (x, y) is T(x, y), measured in degrees Celsius. A bug crawls so that its position after t seconds is
aniked [119]

Answer:

10.50°C

Step-by-step explanation:

Given x = 2 + t , y = 1 + 1/2t where x and y are measured in centimeters. Also, the temperature function satisfies Tx(2, 2) = 9 and Ty(2, 2) = 3

The rate of change in temperature of the bug path can be expressed using the composite formula:

dT/dt = Tx(dx/dt) + Ty(dy/dt)

If x = 2+t; dx/dt = 1

If y = 1+12t; dy/dt = 1/2

Substituting the parameters gotten into dT/dt we will have;

dT/dt = 9(1)+3(1/2)

dT/dt = 9+1.5

dT/dt = 10.50°C/s

Hence the rate at which the temperature is rising along the bug's path is 10.50°C/s

7 0
3 years ago
What is the experimental probability of a coin toss results in two heads showing?
lorasvet [3.4K]

Answer:

1 in 4 chance

25% chance

8 0
3 years ago
Read 2 more answers
Help me please!!!!!!!!!!
kompoz [17]

Answer:

do 15.05/7 mutiply that by 3 that is your awnser

Step-by-step explanation:

6 0
2 years ago
2. Triangle ABC is equilateral and AB = 6x + 3, BC = 8x - 1,2. AB =
kherson [118]

Answer:

AB = BC = AC = 15

Step-by-step explanation:

Since the triangle is equilateral then the 3 sides are congruent.

Equate any 2 sides and solve for x , that is

AC = AB , so

11x - 7 = 6x + 3 ( subtract 6x from both sides )

5x - 7 = 3 ( add 7 to both sides )

5x = 10 ( divide both sides by 5 )

x = 2

Then

AC = 11x - 7 = 11(2) - 7 = 22 - 7 = 15 , thus

AB = BC = AC = 15

8 0
2 years ago
Wrote an expression gor <br> m &lt; RST
grigory [225]

The expression for the angle m∠RST from the given bisctor is; 6x - 18

<h3>How to find the expression for a given angle?</h3>

From the given image in the attachment we are given that;

SQ bisects ∠TSR

m ∠RSQ = 3x - 9

Now, since  SQ is a bisector of ∠TSR, we can say that

m∠RST = 2 * m∠RSQ

Thus angle RST is expressed as;

m∠RST = 2(3x - 9)

m∠RST = 6x - 18

Read more about Angle expression at; brainly.com/question/16953095

#SPJ1

4 0
2 years ago
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