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stellarik [79]
3 years ago
5

The line that has a slipe of -1/2 and passes through the point (-4,-2)

Mathematics
1 answer:
zhuklara [117]3 years ago
3 0

Answer:

y+2=-1/2(x+4)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-2)=-1/2(x-(-4))

y+2=-1/2(x+4)

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What is the value of the 5 in the number 2.005?<br> 0.5<br> 0.005<br> 0.05<br> 5
tino4ka555 [31]
The correct answer is 0.005
7 0
3 years ago
Read 2 more answers
Kayla Can buy 2 pounds of bananas for $7. Write an equation to represent the cost , c, for b bananas.
gregori [183]
Well this is kind of difficult because we have no way to determine a constant for each banana; however, we can still formulate an equation to form some sort of solution.

2 \: lbs \: bananas = 7 \: dollars
Divide both sides by two:

1 \: lbs \: bananas = 3.50 \: dollars


Now, we can continue to go forward as long as know how many pounds each banana bunch weighs and how many bananas are in the bunch.

We could say there are "x" bananas in each pound of bananas:

x \: bananas \div 1 \: lbs \: bananas = 3.50 \: dollars
Or:

b \div 1 \: lbs \: bananas = 3.50c
Or to isolate "c":

(b \div 1 \: lbs \: bananas) \div 3.50 = c
8 0
3 years ago
After standardizing a NaOH solution, you use it to titrate an HCl solution known to have a concentration of 0.205 M. You perform
Gnoma [55]

Answer:

The right answer is:

(a) 0.205

(b) 0.005425

Step-by-step explanation:

The given data is:

0.213, 0.204, 0.208, 0.200, and 0.198

(a)

The mean will be:

= \frac{Sum \ of \ all \ data}{No. \ of \ data}

= \frac{0.213+ 0.204+ 0.208+ 0.200+0.198}{5}

= \frac{1.023}{5}

= 0.2046

or,

= 0.205

(b)

The standard deviation will be:

\sigma^2=\Sigma\frac{(x_i-\mu)^2}{N}

    =\frac{(0.213-0.2046)^2+...+(0.198-0.2046)^2}{5}

    =\frac{0.0001472}{5}

    =2.994\times 10^{-5}

or,

    =0.005425

7 0
3 years ago
Solve the following systems using determinant <br>(a) 2x +3y=4 <br> 4x +6y=4 ​
Wewaii [24]

Answer:

it has no solution

Step-by-step explanation:

first of all if we want to know that how many solutions does it the system we can know easly

  • if a1/a2=b1/b2=c1/c2 then the system has infinite solution
  • if a1/a2=b1/b2≠c1/c2 the system has no solution
  • if a1/a2≠b1/b2 the system has no solution

so in this system a1=2,a2=4,b1=3,b2=6,c1=4&c2=4

so 2/4_3/6_4/4=(to becomfortable to compare we have to find the denominators LCM.LCM(4,6)=12

6/12=6/12≠12/12.

so the system has no solution.

&you can also solve by this way

2x+3y=4 (multiply by ‒2 to be y=0)

4x+6y=4

‒4x‒6y=‒8

4x+6y=4

= 0+0=‒4(error)

so it has no solution

i think it is clear & i hope it helps you.

5 0
3 years ago
The temperature outside dropped 13°F in 7 hours. The
Shkiper50 [21]

Answer:

15 degrees Fahrenheit

Step-by-step explanation:

2+13=15

or 13+2=15

4 0
3 years ago
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