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3 years ago

Can you help me on 11 through 30

Mathematics

1 answer:

Likurg_2 [28]3 years ago

3 0

11. -5 + -10 = -15
12. 4 = 6 + -2
13. -4 * -5 = 20
14. 48/-8 = -6
15. -9 * 4 = -36
16.
17. 18 = -3*-6
18.
19. 7 - 4 = 3
20.-5 * -15 = 75
21.
22. 9*2 + 5 = 23
23.
24.
25.
26. 10 - 2*3 = 4
27.
28. 5 = 4 + 1
29. 12-16 = -4
30.

Sorry I couldn't do fractions didn't have too much time hope this helps you sorry and thanks :D

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150 meters

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3 years ago

The price of a video game was reduced from $60 to $45. By what percentage was the price of the video game reduced?* O 15% O 25%

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Answer:

Step-by-step explanation:

The new price, $45, can be expressed as a percentage of $60 by taking it as a fraction of $60, converting to a decimal value, and multiplying by 100%. $45/$60=3/4=0.75, 0.75x100%=75%. So since 100%-75%=25%, the value was reduced by 25%.

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3 years ago

Find all zeros of ƒ(x) = 2x^4 – 72x^2. Then determine the multiplicity at each zero. State whether the graph will touch or cross

AleksandrR [38]

Answer: See below

Step-by-step explanation:

To find the factor,

f(x) = 0

$\begin{aligned}&2 x^{4}-72 x^{2}=0 \\&2 x^{2}\left(x^{2}-36\right)=0 \\&x^{2}\left(x^{2}-36\right)=0 \\&x \times x \times(x-6) \times(x+6)=0 \\&\mathrm{x}=0,0,6,-6\end{aligned}$

So,

x = 0 multiplicity 2

x = -6 multiplicity 1

x = 6 multiplicity 1

For an even multiplicty, the graph touches the x-axis, and for an odd multiplicty, the graph crosses the x-axis

Therefore,

x = 0 multiplicty 2, Touch

x = -6 multiplicty 1, Cross

x = 6 multiplicty 1, Cross

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2 years ago

jek_recluse [69]

Answer:

Step-by-step explanation:

Two similar polygons, means a similarity would exist in both polygons

Perimeter of a rectangle = 2(l +w)
Perimeter of the larger rectangle = 36 (because it's the largest figure)
equation becomes 36 = 2(L + W)
since L = 14, it becomes = 36 = 2(14 +W)
36 = 28 + 2W
2W = 36 - 28 = 2w = 8

w = 4.

Now we assume that since the rectangles are similar, they would have similar dimensions, in this case Width. so with this, we find length of smaller rectangle.

21 = 2(L + 4) = 21 = 2L + 8

2L = 21 - 8 = 2L = 13

L = 13/2 = 6.5.

lastly the product of the length of both polygons = 14 * 6.5 = 91.

Their Products length is 91

6 0

3 years ago