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ss7ja [257]
3 years ago
15

What is the missing angle?

Mathematics
2 answers:
AleksAgata [21]3 years ago
7 0

Answer:

318

Step-by-step explanation:

151+116+135+136+164+101+139=942

1260-942=318

AfilCa [17]3 years ago
3 0

Answer:

118 degrees

Step-by-step explanation:

an octogon has 1080 degrees so, 116+151+139+101+164+136+135=942, so 1080-942=138

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Da<br> A<br> Solve the equation 2x^2+3=0
Anika [276]

Answer:

x = ±i(√6 / 2)

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

<u>Algebra I</u>

  • Solving quadratics

<u>Algebra II</u>

Imaginary root i

  • √-1 = i

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

2x² + 3 = 0

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Subtraction Property of Equality] Subtract 3 on both sides:                        2x² = -3
  2. [Division Property of Equality] Divide 2 on both sides:                                  x² = -3/2
  3. [Equality Property] Square root both sides:                                                    x = ±√(-3/2)
  4. Simplify:                                                                                                             x = ±i(√6 / 2)
4 0
3 years ago
Please help me with both questions!
vova2212 [387]

Answer:

maximum area will be 1058 square yards

maximum height will be 81 feet

Step-by-step explanation:

P = 2L +2W

but in this case it will be P= L+2W and P=92 yards

L+2W = 92

Solve for L , L = 92-2W

The area of rectangle A = L x W

Plug in L and simplify: A = (92-2W)W =92W -2W²

Plot in your calculator  and  look for maximum so when the width is 23 yards maximum area will be 1058 square yards.

Second problems is the maximum height of the rocket. Maximum will be at the vertex of the upside-down parabola.

7 0
3 years ago
A football team moved -8 yards on one play, then lost another 4 yards on the next play. How many total yards did the football te
Leokris [45]

Answer:

12 yards

Step-by-step explanation:

you subtract negative 8 and 4 and it gives you twelve yards of the play

8 0
3 years ago
The price of a pair of sunglasses was reduced from $55 to $33. By what percentage was the price of the sunglasses reduced?
Karolina [17]
22% because the doubt know
7 0
3 years ago
Plot the points (0, -2) (4, 1)​
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Hiii! I’m going to try to show a picture if it doesn’t appear let me know - my thing ain’t working
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