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AlexFokin [52]
3 years ago
9

Please help thank you I need help ASAP

Mathematics
1 answer:
jarptica [38.1K]3 years ago
7 0

Answer:

Step-by-step explanation:

Since h(x) represents y, to solve this problem, we have to find all the x values that make the y positive. The best way to do this, is to mark the intercepts and see which intervals make y positive. (It sounds confusing but it isn't very.)

Take a look at the image below. The red represents x<0, the blue represents 0<x<3.5, and the green represents x>3.5. If we take a look at the shape of the graph we can see that the y coordinates are positive in the green and red range as the graph goes above the x-axis. Therefore the h(x)>0 when x<0 or when x>3.5. Now figure out which one of the answers lie in that range! Comment if you need help.

SIDE NOTE: I realize that this was unnecessary to solving the problem as a simple guess and check would have worked but I thought it would be beneficial for you to know how to solve these types of problems in general.

DOUBLE SIDE NOTE: I also realize that the intercept may not be exactly 3.5 as it doesn't state it in the problem, but for explanation's sake, I made that assumption. SORRY IF IT CONFUSED YOU.

Hope this was helpful!!!

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8 0
3 years ago
What is the quadratic equation for this graph.
Softa [21]
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3 0
3 years ago
How do the surface areas of similar prisms compare when dimensions are doubled?
zhuklara [117]

Answer:

The surface area of the larger prism is 4 times the surface area of the smaller one.

(which agrees with answer B in your list)

Step-by-step explanation:

Notice that the lateral surface area of prisms always consists of parallelograms, whose areas are given by the product base times height. = B x H

Therefore if the dimensions of the prism double, then the base and height of the parallelograms will double as well, making such individual ares of the lateral faces go from:

B x H  to -->  2 B x 2 H = 4 (B x H)

that is 4 times the original lateral face's area.

with the faces for the top and bottom bases of the prism, something similar happens, so we conclude that the surface area of the larger prism is 4 times the surface area of the smaller one.

6 0
3 years ago
40/100= _ of_ Equal parts and the decimal _
Natasha_Volkova [10]
Not sure what the question is, but this is 4/10 or 0.4.
8 0
3 years ago
There are 40 students in a class. Boys makeup 40% of the class. If 25% of the boys wearshirt jacs, how many boys wear shirt jacs
Karo-lina-s [1.5K]

Answer:

6

Step-by-step explanation:

Find out how many boys makeup the class.

100% = 40

1% = 40 ÷ 100 = 0.40

40% = 0.40 x 40 = 16

Find 25% of the class.

25% = 0.40 x 25 = 10

40 - 25 = 15% of the boys wear shirt jacs.

16 - 10 = 6

5 0
3 years ago
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