4 years ago

A line passes through (3, 7) and (6, 9). Which equation best represents the line?

Mathematics

1 answer:

Art [367]4 years ago

7 0

Look it up it will help a ton at math papa

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What is the equation of the line in slope-intercept form?

Lubov Fominskaja [6]

Step-by-step explanation:

x= 0 y= 5

y=mx+b

5=b

x= -3 y= -4

-4= -3m +5

-3m = -9

m= 3

y= 3x +5

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3 years ago

Doreen Schmidt is a chemist. She needs to prepare 28 ounces of a 8% hydrochloric acid solution. Find the amount of 14% solution

scZoUnD [109]

Let, amount of 14% solution required is x ounces.

So, amount of 8% solution will be ( 28 - x ) ounces.

Now, mathematical equation is :

$\dfrac{14x}{100}+\dfrac{7(28-x)}{100}= \dfrac{8\times 28}{100}\\\\14x + 196 - 7x = 224\\\\7x = 28\\\\x = 4\ ounces$

Therefore, amount of 14% solution and 8% solution required is 4 ounces and 24 ounces respectively.

Hence, this is the required solution.

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3 years ago

One cell phone carrier charges 26.50 a month plus 0.15

Gwar [14]

So what do you need us to do for you?

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3 years ago

Solve each exponential equation. <br> 32^x = 81

vesna_86 [32]

Answer:

The solution is $x = 1.268$ .

Step-by-step explanation:

The best way to solve this exponential equation is applying the logarithm of base 10 to each side of the equality.

It is also important to remember the following logarithm proprierty:

$\log{a^{b}} = b \log{a}$

$32^{x} = 81$

$\log{32^{x}} = \log{81}$

$x\log{32} = \log81$

$1.505x = 1.908$

$x = \frac{1.908}{1.505}$

$x = 1.268$

The solution is $x = 1.268$ .

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4 years ago

How is the measurement 0.000065 cm written in scientific notation?

omeli [17]

6.5*10^-5 is the answer if tou have to move the decimal to the right is is negative and then count how many spaces

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3 years ago