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Ber [7]
2 years ago
8

А) 6x = 7y Can someone help

Mathematics
1 answer:
Rom4ik [11]2 years ago
5 0

Answer:

36  x 2 - 49 y 2

Step-by-step explanation:

6  x (6x) +6 x ( - 7 y ) + 7 y (6x) +7 y ( - 7 y)

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Kall is single and earns $45,800 per year. what is her annual federal withholding?
Vsevolod [243]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
a country's population in 1990 was 134 million. in 2000 it was a 139 million. estimate the population in 2014 using the exponent
yuradex [85]
F=ir^t

139=134r^10

139/134=r^10

r=(139/134)^(1/10) then:

f=134(139/134)^(t/10)  so in 2014, t=24 so

f=134(139/134)^(2.4)

f≈146 million  (to nearest million)

Some will say that you have to use the exponential function, but it really gives you the same answer...even for continuous compounding :)...

A=Pe^(kt)

139=134e^(10k)

139/134=e^(10k)

ln(139/134)=10k

k=ln(139/134)/10 so

A=134e^(t*ln(139/134)/10)  when t=24

A=134e^(2.4*ln(139/134))

A≈146 million (to nearest million)

The only real reason or advantage to using A=Pe^(kt) is when you start getting into differential equations...
6 0
3 years ago
40 points, please help with all of them
Kitty [74]

Answer:

\large\boxed{Q1.\ \text{2 times greater}}\\\\\boxed{Q2.\ J. 3}\\\\\boxed{Q3.\ B. -\dfrac{4}{5}}

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercept

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Q1.

We have the equation of a line <em>p </em>in the standard form

4x-3y=7

Convert to the slope-intercept form:

4x-3y=7               <em>subtract 3x from both sides</em>

-3y=-4x+7              <em>divide both sides by (-3)</em>

y=\dfrac{4}{3}x-\dfrac{7}{3}

The slope m_1=\dfrac{4}{3}

From the table we have the points (4, 3) and (7, 5). Calculate the slope of line <em>q</em>:

m_2=\dfrac{5-3}{7-4}=\dfrac{2}{3}

Divide the slope of <em>p</em> by the slope of <em>q</em>:

\dfrac{4}{3}:\dfrac{2}{3}=\dfrac{4}{3}\cdot\dfrac{3}{2}=2

Q2.

Parallel line have the same slope. Therefore, if we have the equation of the line in the slope-intercept form, then we have the slope:

y=3x+2\to m=3

Q3.

Parallel line have the same slope.

Calculate the slope from given points (-11, 5) and (-6, 1):

y=\dfrac{1-5}{-6-(-11)}=\dfrac{-4}{-6+11}=\dfrac{-4}{5}=-\dfrac{4}{5}

6 0
2 years ago
How many 1/8-inch pieces of ribbon can be cut from a piece of ribbon that is 3/4 inch long? and I cant be a friction
Anarel [89]

Answer:

100 inches

Step-by-step explanation:

8 0
3 years ago
Write the inequality shown in the graph below:
love history [14]

Answer:

y < 4

Step-by-step explanation:

Since the line is dotted, it will be either greater than or less than depending on if it is shaded above or below. It's "y" because the line crosses the y axis, not the x axis.

5 0
3 years ago
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