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3 years ago

HELP MEEEEEEEEEEEE (please don't put a link or i don't know)

Mathematics

1 answer:

Leviafan [203]3 years ago

7 0

Answer:

42 i think

Step-by-step explanation:

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I will mark the correct answer as brainliest! A piece of fabric 180 inches long is cut in 2 pieces such that 3 times the larger

Ulleksa [173]

Let one piece be x inches long then the other piece is 180-x inches long.

3x > 4 (180-x)
3x > 720 - 4x
7x > 720

x > 103 6/7 ins

the 2 pieces could be 107 inches and 180-107 = 73 inches

5 0

3 years ago

Given the directrix of y = -1 and focus of (0, 3), which is the equation of the parabola?

guajiro [1.7K]

Answer:

$y=\dfrac{1}{8}x^2+1$

Step-by-step explanation:

Since the vertex is right between the vertex and the directrix, the y value of the vertex must be (3+(-1))/2=1. The x coordinate will just be the same as that of the focus, or in this case 0. This means that the vertex will be at (0,1). Since the graph opens toward the focus, it will be opening up, and since its vertex is at (0,1), it will have an equation of:

$y=\dfrac{1}{8}x^2+1$

Hope this helps!

3 0

4 years ago

Need Help I plsssssssssssssss

cluponka [151]

Answer:

26 in²

Step-by-step explanation:

Hope this helps :)

8 0

3 years ago

Read 2 more answers

Maya bought a new iphone case for $40. Now, it is on sale for $25. Find the percent of change in the

bulgar [2K]

Answer:

Step 1: $15

Step 2: 38%

Step-by-step explanation:

Step 1:

40 - 25 =15.

Therefore, the price would decrease by $15.

Step 2:

40 multiplied by .38 equals 24.80. You would round that up to 25. If you plugged in 37%, it would equal 25.20, which is over the price. Therefore the price decreased by 38%.

4 0

3 years ago

Determine the slope of the linear function.<br><br> f(8)=-1 and f(2)=3

viktelen [127]

We can calculate the slope by using the slope formula!

$\frac{y_2 - y_1}{x_2 - x_1}$

We now just plug in our values which are:

$\frac{8+1}{3-2}=9$

5 0

4 years ago