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2 years ago

Help pleaseeeeeee!!!!!!

Mathematics

1 answer:

Archy [21]2 years ago

3 0

Answer:

5x + 100

Step-by-step explanation:

(2x + 6) x 2 = 4x + 12

14x + 8 - 4x + 12 =

10x + 20 / 2 =

5x + 100

Hope that helps!

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What is the vertex of the quadratic equation y = - 1/3 (x + 2)^2 +5

Wewaii [24]

Answer:

Step-by-step explanation:

$\text{The vertex form of a quadratic equation:}\\\\y=a(x-h)^2+k\\\\(h,\ k)-vertex\\---------------\\\text{We have:}\\\\y=-\dfrac{1}{3}(x+2)^2+5=-\dfrac{1}{3}(x-(-2))^2+5\Rightarrow h=-2\ \text{and}\ k=5\\\\\text{therefore the vertex is:}\ (-2,\ 5)$

6 0

2 years ago

The linear graph shows the possible combinations of cakes and pies a club must sell to meet their fundraising goal. What is the

AleksandrR [38]

Answer:

$\{x: 0 \le x \le 40 \}$

Step-by-step explanation:

Given

See attachment for graph

Required

The domain of the graph

To do this, we simply write out the range of value of the x-coordinate.

From the attached graph, the x values are:

$x = [0,40]$ i.e. from 0 to 40 (both inclusive)

So, the domain is:

$\{x: 0 \le x \le 40 \}$

3 0

2 years ago

Find a solution to the system. Make sure to write as a coordinate.

RUDIKE [14]

Answer:

x=2, y=3

Step-by-step explanation:

This is a <u>system of equations</u>.

To solve a system of equations, we use the substitution method.

We can plug in the first equation, $x=2y-4$ , into the value for <em>x</em> in the second equation. Now, the second equation looks like this:

$2*(2y-4)+y=7$

We simplify and solve for <em>y</em>:

→ $4y-8+y=7$

→ $5y=15$

→ $y=3$

Now, we plug in the value for <em>y</em>, which is 3, into either equation. I will just use the first equation:

→ $x=2*3-4$

→ $x = 2$

Let me know if my explanation is unclear.

3 0

2 years ago

The equation $1.50p + $5.00 = $14.00 shows the total cost of picking p pounds of blueberries at a local blueberry farm. How many

julia-pushkina [17]

First we need to subtract $5 from both sides. That gives us the new equation 1.50p = 9. Then, divide 9 by 1.5, which gives you the answer. 9/1.5 = 6.

8 0

2 years ago

Find the area of the figure

crimeas [40]

Try this way:
S=S₁-S₂, where S - area of the figure, S₁ - area of the triangle, S₂ - area of the quadrangle.
S=0.5*(5+2)*(5+4)-2*4=31.5-8=23.5 in.²

Answer: 23.5 in.²

8 0

2 years ago