4 years ago

Help!!! pre cal! willl give points

Mathematics

1 answer:

RoseWind [281]4 years ago

5 0

Answer:

1.6

Step-by-step explanation:

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Does the equation x2 - 10x + y2 - 6y = -30 intersect the x-axis?

Dmitriy789 [7]

Intersecting the x axis means y is 0
plug y=0 in the equation and solve for x to see if there are real solutions
x^2-10x+0+0=-30
x^2-10x+30=0
this cannot be factored, so let's see if b^2-4ac is bigger than 0
10^2-4*1*30=-20
so the solutions for this equation are not real numbers, therefore the answer is no.

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3 years ago

A candy company designs a package to hold chocolates. The height of the container is 13 inches and the diameter of its bottom is

mote1985 [20]

Answer:

cone,258

Step-by-step explanation:

i got it right

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2 years ago

888,000,000 (0.0000018) over 0.00004 use scientific notation to calculate....???

NeTakaya

(4xx10^-5 0.00004<span> =4/100000 =4/10^5 =color(blue)(4xx10^-5.

</span>

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3 years ago

9+8b2 gcf<br><img src="https://tex.z-dn.net/?f=9%20%2B%208b2" id="TexFormula1" title="9 + 8b2" alt="9 + 8b2" align="absmiddle" c

monitta

The answer remains as is, or you could do it this way: 1(9 + 8b²).

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4 years ago

Shannon is making three different sizes of blankets from the same material. The first measures 2.5 feet by 2 feet. She wants to

Arada [10]

Answer:

<h2>The dimensions of the third blanket are 7.5 feet by 6 feet.</h2><h2>All the blankets are similar.</h2>

Step-by-step explanation:

The size of the first blanket is 2.5 feet by 2 feet.

Shannon wants to enlarge the first blanket by scale factor 2 to make the second blanket.

Hence, the size of the second blanket will be $(2.5\times2) = 5$ feet by $2\times2 = 4$ feet.

Again she enlarged the second blanket by a scale factor 1.5 to make the third blanket.

Hence, the size of the second blanket will be $5\times1.5 = 7.5$ feet by $4\times1.5 = 6$ feet.

Enlargement only changes the size of the blanket, it does not change the shape of the blanket. Hence, all the blankets will be similar.

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3 years ago