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Sholpan [36]
2 years ago
11

100 points HELP ASAP!!!!!

Mathematics
2 answers:
Dahasolnce [82]2 years ago
5 0
B I think??? Because in the first paragraph and last they all compare about how long it took and how good.
TiliK225 [7]2 years ago
3 0

awnser for a: d

awnser for b: a

anything else ?

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Match each quadratic equation with its solution set.
Luba_88 [7]

Answer:

2x²-32 ⇒ x²=16⇒ (-4,4)

4x²-100 ⇒x²=25 ⇒(-5,5)

x²-55=9 ⇒x²=64 ⇒(-8,8)

x²-140=-19 ⇒x²=121 ⇒(-11,11)

2x²-18=0 ⇒x²=9 ⇒(-3,3)

5 0
3 years ago
Read 2 more answers
I need help with this.
Sloan [31]

9514 1404 393

Answer:

  61.4

Step-by-step explanation:

The length of two semicircles of diameter 10 is the circumference of a circle of that diameter:

  C = πd = 10π ≈ 31.4

The perimeter includes that length plus the lengths of two straight sides that are 15 units each.

  P = 31.4 + 2×15

  P = 61.4 . . . . units

4 0
3 years ago
Find the value of X (in this picture)​
alexgriva [62]

Answer:

x = 89

Step-by-step explanation:

The sum of the angles of a triangle add to 180 degrees

x+32+ 59 = 180

Combine like terms

x + 91 = 180

Subtract 91 from each side

x +91-91= 180-91

x = 89

6 0
3 years ago
Reflection on cordinate planes
trapecia [35]
(Problems 1b and 2b are cut off in the photo)

1a Problem:

(-3,1)
(-3,5)
(-7,1)

2a Problem:

(6,2)
(3,5)
(10,7)

*Psst, I need one more brainliest answer to rank up, so if you gave that to me, it would be very appreciated, thanks :)*
7 0
2 years ago
Use Natural Logarithms to solve the equation
Rus_ich [418]

Answer:

A) 0.106

Step-by-step explanation:

8e^3x + 4 = 15

Subtract 4 from each side

8e^3x + 4-4 = 15-4

8e^3x  = 11  

Divide each side by 8

8/8e^3x = 11/8

e^(3x) = 11/8

Take the natural log of each side

ln(e^(3x)) = ln(11/8)

3x = ln(11/8)

Divide by 3

3x/3 = 1/3 ln(11/8)

x = 1/3 ln(11/8)

x =.106151244

To the nearest thousandth

x = .106

7 0
3 years ago
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