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3 years ago

#7 please help!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

4 0

If they all painted at the same rate the equation is this

mothers 8
daughters 12 at 220 sq ft

mothers 6
daughters 8 at 152 sq ft

220 +152 =372 divided by 34 (because they all painted at the same rate)=10.94 sq ft they each painted

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Can someone help me with this ONE question? Write an equation.. and solve for X

matrenka [14]

Answer:

Equation: 720=(8x-1)+110+(5x+36)+116+(7x+19)+(6x-2)

x=17

Step-by-step explanation:

A 6 sided polygon is 720° degrees

720=(8x-1)+110+(5x+36)+116+(7x+19)+(6x-2)

Simplify

720=(8x+5x+7x+6x)+(−1+110+36+116+19+−2)

Combine like terms:

720=26x+278

flip equation:

26x+278=720

subtract 278 from both sides

26x=442

divide by 26 both sides:

x=17

Hope this helps.

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2 years ago

If ln(a)=2, ln(b)=3, and ln(c)=5, evaluate the following: ln(a^-4/b^1 c^1)

Mila [183]

Ln ( a^(-4) / b^1 c^1 ) =
= ln a ^(-4) - ( ln b + ln c ) =
= - 4 ln a - ln b - ln c =
= - 4 * 2 - 3 - 5 =
= - 8 - 3 - 5 = - 16

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3 years ago

What is the vertex of the absolute value function defined by ƒ(x) = |x + 5| + 7?

Temka [501]

To answer this, you need to know the general form of an absolute value function. the equation for this is f(x) = a|x - h| + k, and in this equation, the vertex is (h, k).

with that information, you can see that your vertex will be (-5, 7). you must take the negative for 5 because the general equation states that your h value is usually subtracted from x. to check your vertex, try plugging it into your general equation:
f(x) = a|x - (-5)| + 7
f(x) = a|x + 5| + 7 ... you see that this matches your given equation. this last part here was just to show why your 5 must be negative; your answer is bolded.

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3 years ago

What are the Zeros of the quadratic function below?* 10 points

S_A_V [24]

It says it’s 5 points not 10 points!

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3 years ago

Rewrite the explicit formula in function form. The identify the y

Katyanochek1 [597]

Answer: y-intercept: (0, 12)

Step-by-step explanation:

$a_n$ = 9 − 3 (n − 1)

Use the slope-intercept form to find the slope and y-intercept.

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

y = mx + b

Find the values of m and b using the form y = mx + b.

m = −3

b = 12

The slope of the line is the value of m, and the y-intercept is the value of b.

Slope: −3

intercept: (0, 12)

Any line can be graphed using two points. Select two x values, and plug them into the equation to find the corresponding y values.

Find the x-intercept.

To find the x-intercept(s), substitute in 0 for y and solve for x.

0 = −3x + 12

Solve the equation.

Rewrite the equation as −3x + 12 = 0.

−3x + 12 = 0

Subtract 12 from both sides of the equation.

−3x = −12

Divide each term by −3 and simplify.

x = 4

x-intercept(s) in point form.

x-intercept(s): (4, 0)

Find the y-intercept.

To find the y-intercept(s), substitute in 0 for x and solve for y.

y = −3 ⋅ 0 + 12

Solve the equation.

Remove parentheses.

y = −3 ⋅ 0 + 12

Simplify −3 ⋅ 0 + 12.

y = 12

intercept(s) in point form.

intercept(s): (0, 12)

Create a table of the x and y values.

x | y

0 | 12

4 | 0

Graph the line using the slope and the y-intercept, or the points.

Slope: −3

intercept: (0, 12)

6 0

3 years ago