Formula
1/2 (b×h)

plug in
1/2 (6×3)
1/2 (18)
9 ft squared.
always remember measurement of the shape, square your answer because your finding area and formulas. the numbers on the side are to distract you.

4 0

2 years ago

There are three blue marvels and five red marvels in a bag you randomly select a marble and put it it back in the back if you do

olga nikolaevna [1]

Answer:

25 times

Explanation:

Blue Marvels: 3

Red Marvels: 5

Total Marvels: 5 + 3 = 8 marvels

Probability: favorable outcomes/total outcomes

Probability - red marble = 5/8

After Doing 40 times:

= 5/8 × 40

= 25

7 0

1 year ago

What is the focus of the parabola given the equation y=x^2+4x-1

IrinaK [193]

Let's first rewrite it in vertex form.
Start by completing the square.
y = x² + 4x + 4 - 4 - 1
y = (x + 2)² - 5
(x + 2)² = y + 5

Now, 4a = 1; a = $\frac{1}{4}$

So, the vertex form is (x + 2)² = 4( $\frac{1}{4}$ )(y + 5)
So, we know that the vertex is at (-2, -5).
Since it's a concave up parabola, we just have to change the y-value to find the focus.

∴ F(-2, -5 + $\frac{1}{4}$ )
F(-2, $\frac{-19}{4}$ )

3 0

2 years ago

Elise says, "If you subtract 17 from my number and multiply the difference by negative 6, the result is negative 126." What i

Studentka2010 [4]

Well, I would just reverse it. It seems you just have to reverse the whole problem.

4 0

3 years ago