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3 years ago

WILL GIVE BRAINLIEST PLS HELP

Mathematics

1 answer:

olya-2409 [2.1K]3 years ago

3 0

First simplify (3--4)^2+(2-0)^2

(7)^2+(2)^2
49+4
53
Then take the square root of 53. But in your case, C would be the correct answer of $\sqrt{53}$

Hope this helps!

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Use the rules for logarithms and exponents to write this equation in logarithmic form.?

Papessa [141]

Answer:

$ln K = ln (A) -\frac{\Delta H}{RT}$

Step-by-step explanation:

For this case we have the following expression:

$K = A e^{-\frac{\Delta H}{RT}}$ (1)

And we want to find the value of ln K. If we apply natural log on both sides of the equation (1) we got:

$ln K = ln(A e^{-\frac{\Delta H}{RT}})$

Using the following property:

$ln(xy) = ln (x) + ln(y)$ for x and y real numbers, x>0, y>0, then we have:

$ln K = ln (A) + ln (e^{-\frac{\Delta H}{RT}})$

Now since the natural log and the exponentiation are inverse operations we have this:

$ln K = ln (A) + (-\frac{\Delta H}{RT})$

And then the final expression for ln K is :

$ln K = ln (A) -\frac{\Delta H}{RT}$

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4 years ago

A regular hexagon rotates counterclockwise about its center. It turns through angles greater than 0° and less than or equal to 3

Talja [164]

Answer:

Step-by-step explanation:

A regular hexagon has six side and it is rotated counterclockwise about its center.

rotation is 0° < x ≤ 360

it will map on itself at the multiples of the angle = 360 / 6 = 60°

which are 60°, 120°,180°, 240°, 300° and 360°

the number of different angles = 6

7 0

3 years ago

Barbara orders her groceries from a store that charges $15 plus the cost of her groceries to deliver her groceries to her home.

crimeas [40]

Answer:

The correct answer is Total Cost Payable = $Exp + $15, where $Exp is the total price of the groceries bought by Barbara

Step-by-step explanation:

Barbara orders her groceries. Let us consider that she orders groceries worth $Exp from a store.

Extra charges levied by the store for delivering the groceries to Barbara's house is $15.

Thus the total payable charge by Barbara for her groceries should include the total price of the groceries and the delivery charges levied by the store.

Thus the Total Cost Payable by Barbara is the sum of the total expenditure by her on the groceries and the delivery charge.

∴ The total cost payable = $Exp + $15.

6 0

3 years ago

Please help answer :)

Umnica [9.8K]

Answer:

Step-by-step explanation:

1. You just plot the points

2. To plot the line you have to find the slope and y-intercept

Slope = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ = $\frac{30-15}{4-2}$ = $\frac{15}{2}$