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Maru [420]
3 years ago
7

True or false: the value of 3pi/2 is a solution for the equation 2sin^2 x-sin x-1 =0

Mathematics
1 answer:
Ede4ka [16]3 years ago
6 0

The answer would be true, because the 2 on the bottom of the fraction would cancel out the 2 in the equation.

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PLZZZZZ HELP MEH ILLLL MARK AND 100 points
Nataliya [291]

Answer:

Volume of original toolbox = 180 in³

Yes, doubling one dimension only would double the volume of the toolbox.

Step-by-step explanation:

Volume = L x W x H

10 x 6 x 3 = 180 in³

proof:

double length = 20 x 6 x 3 = 360 in³, which is double the original

double width = 10 x 12 x 3 = 360 in³, which is double the original

double height = 10 x 6 x 6 = 360 in³, which is double the original

7 0
3 years ago
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Suppose that 65% of all registered voters in a certain area favor a waiting period before the purchase of a handgun. Among 225 r
Vedmedyk [2.9K]

Answer:

B

Step-by-step explanation:

225 x 0.65 = 135

7 0
2 years ago
Martin has 38 dollars.raymond had x fewer dollars than Martin . Choose the expression that shows how much money Raymond has
horsena [70]

Answer: x < 38

Step-by-step explanation: Raymond has less money than Martin but you don’t know how much. So you use the less than sign to show that it’s less than 38 dollars

6 0
3 years ago
Separate triangular plot lines for two characters showing their stories progressing side by side
Savatey [412]

Answer:

Episodic

Step-by-step explanation:

There are different types of plot ,But the type of plot that was illustrated here is reffered to as episodic.

Episodic plot is the plot that can be described as one that is composed of series or varieties of different events, one of the unique features of the Episodic plot is that they are usually one chapter long, and they are usually related to one another.Each chapter of the plot posses its rising action, and this has relationship with somehow with the next and previous chapters.

The total events are joined together with just a common theme as well as characters.

6 0
3 years ago
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Solving a word problem using a quadratic equation with rationa...
choli [55]

Answer:

length : 8 m

width : 13/2 = 6.5 m

Step-by-step explanation:

area of rectangle = l(ength)×w(idth) = 52

l = 2w - 5

=> (2w - 5)×w = 52

=> 2w² -5w - 52 = 0

we know, when transforming this quadratic equation into a multiplication of two expressions of w, that we need to have 2w and w (to make 2w²), and then which 2 numbers multiply to 52 and add to -5 (when one is multiplied by 2 due to 2w) : -13 and 4

=> (2w - 13)×(w + 4) = 0

=> 2 solutions for w :

2w-13 = 0

2w = 13, w = 13/2

w+4 = 0, w = -4

negative values for a side length of a shape do not make sense, so the only usable solution is w = 13/2

=> l = 2w - 5 = 13 - 5 = 8

8 0
3 years ago
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