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Stolb23 [73]
3 years ago
9

F(x) = 2x^2 − 6x + 3 for x = −1

Mathematics
1 answer:
allochka39001 [22]3 years ago
7 0
The answer I got from this problem is 11 :(
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Geometry math question
Darina [25.2K]

Angles 1 and 2 are linear, meaning that they are supplementary, or add up to 180 degrees. We already know that angle 1 = 72 degrees. So, to find angle 2, take 180 and subtract 72 from it to get: 180 - 172 = 108 degrees. The answer is B.

5 0
3 years ago
Read 2 more answers
Plot and connect the following points: P(1, −4), Q(5, −2), R(9, −4), S(7, −8), and T(3, −8). Give the best name for the polygon,
Citrus2011 [14]

Answer:

The area of the pentagon is = 31.5

Step-by-step explanation:

<em>First, we determine the perimeter of the "Pentagon" drawn in the attachment:</em>

p=4+4+4+4.5+4.5=21

<em>Now, we'll check the formula for pentagons:</em>

a=\frac{perimeter x apothem}{2}

<em>we calculate the apothem by placing a 90° angle in one of the sides of the shape. It is equal to:</em>

apothem=3

<em>then, we can substitute the values in the formula</em>

a=\frac{21(perimeter) x 3(apothem)}{2} =\frac{63}{2} =31 \frac{1}{2} or 31.5

Let me know if you have questions :D

7 0
3 years ago
The sides of two cubes are in the ratio 2:1. What is the ratio of their volumes ?
olasank [31]

Please mark as brainliest

Answer:

we know that, Volume of cube=a³

Let volume of 1st cube be 2x with side a and other be x with side A (according to given ratio)

Step-by-step explanation:

ATQ: 2x=a³ and, x=A³

a=³√2x and, A=x

we know that, surface area of cube is 6a²

Thus, surface area of 1st cube = 6(³√2x)²

= 6³√4x²

Surface area of 2nd cube=6(x)²=6x²

Ratio of S.A=(6³√4x²)÷(6x²)

Ratio of S.A=³√4:1

<em><u>Please mark as brainliest</u></em>

Have a great day, be safe and healthy

Thank u  

XD

5 0
3 years ago
Whats the square root of 10?? For each to the nearest 0.05.​
Vesnalui [34]

Answer:

3.16(i think)

Step-by-step explanation:

4 0
3 years ago
Describs how to identify the coordinate of an improper fraction on a number line.
Ainat [17]

Answer:

Step-by-step explanation:In order to graph the improper fraction you have to change it to a mixed number

say we have 4/3 ,as a mixed number it would be 1 1/3 so we would graph

the 1 1/3 at 1 and break the space in between 1 and 2 into 3 and mark the first 3rd tally

7 0
3 years ago
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