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3 years ago

5

You buy 3 books that each cost the same amount and a magazine all for 55.99. You know that the magazine costs 1.99. How much doe

s each book cost

1 answer:

kenny6666 [7]3 years ago

7 0

Each of the three books costs $18

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Subtract. Your answer should be a polynomial in standard form. (6y^2-9y+4) -(-7y^2+5y+1)=(6y 2 −9y+4)−(−7y 2 +5y+1)=left parenth

kifflom [539]

Solution:
(6y^2-9y+4)-(-7y^2+5y+1)
Distribute to get rid of ( )
6y^2-9y+4+7y^2-5y-1
Combine like terms
13y^2-14y+3

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2 years ago

Geometry question, any help is appreciated

kodGreya [7K]

Answer:

Hence, the ratios are given by 5:7, 25:49, 125:343.

Step-by-step explanation:

We are given two spheres such that:

Volume of small sphere $V_{s}$ = 250 $yd^{3}$

Volume of large sphere $V_{l}$ = 686 $yd^{3}$ .

Then the ratio of volume = 250 : 686 = 125 : 343.

Since, the volume of a sphere = $\frac{4 \pi \times r^{3}}{3}$ , this gives us that the ratio of the radius = ∛ $V_{s}$ : ∛ $V_{l}$

i.e. The ratio of the radius = ∛125 : ∛343 = 5 : 7.

Further, as the surface area of a sphere = $4 \pi \times r^{2}$ , this gives us that the ratioof surface area = $r_{s} ^{2}$ : $r_{l} ^{2}$

i.e The ratio of the surface area = $5^{2}$ : $7^{2}$ = 25 : 49

So, the ratio of the surface areas = 25 : 49.

Hence, the ratios are given by 5:7, 25:49, 125:343.

4 0

2 years ago

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What is the value of x in the equation -6 + x = -1?<br> -5<br> -7<br> 7<br> 5

Naya [18.7K]

D) 5

Mark if correct!

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2 years ago

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6.8 * 10(2)<br> *keep in note that "2" is an exponent in this question*

Virty [35]

Answer:

68

Step-by-step explanation:

6.8 × $10^2$

= 68

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2 years ago

Suppose the box you want to ship has a square base (meaning that the dimensions of the bottom of the box are equal). If you choo

JulsSmile [24]

Answer:

24 inches

Step-by-step explanation:

When dealing with 3-Dimensional objects such as a box, the depth of that object refers to the distance between the highest and lowest points of that object. Therefore since it the question it states that the length, width and depth is 24 inches. Then the height of the box (as well as maximum height) would be a total of 24 inches. This would be in the case that the entire box was cubed, if the box is triangular with a square base then this height would be shorter as all the points would meet in a shorter position.

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2 years ago