3 years ago

Find the measure of angle A

Mathematics

1 answer:

Ainat [17]3 years ago

5 0

Answer:50 degress 2/2

Step-by-step explanation:

2/2

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Please help asap 25 pts

beks73 [17]

$y=ax^2+bx+c\\\\\text{Axis of symmetry:}\ x=\dfrac{-b}{2a}$

$\text{We have:}\\\\y=4x^2+16x-18\\\\a=4;\ b=16;\ c=-18\\\\x=\dfrac{-16}{2\cdot4}=\dfrac{-16}{8}=-2$

Answer: A.

6 0

3 years ago

Please help with this! Show how you got it!!! Will mark brainliest!!

Ghella [55]

Answer:

sum of interior angles of octagon is 1080 degrees

From figure ,

136 + 132 + 129 + 116 + 158 + 141 + 124 + x = 1080

so, x = 1080 - 936

= 144

Step-by-step explanation: Simply add the angles and substract the sum from 1080 which is the sum of interior angles of octagon

8 0

3 years ago

Read 2 more answers

A set of three scores consists of the values 3, 7, and 2. Σ2(X – 3) =

siniylev [52]

Answer:

Step-by-step explanation:

$\sum 2(X-3)=2(3-3)+2(7-3)+2(2-3)=0+8-2=6$

5 0

2 years ago

You enter a room. 2 dogs, 4 horses, 1 giraffe and a duck lie on the bed. 3 hens fly over a chair. How many legs are there on the

kap26 [50]

Answer:

38 legs

Step-by-step explanation:

dog=4 legs

horse=4 legs

giraffe= 4 legs

duck = 2 legs

2x4+4x4+1x4+1x2

8+16+4+2=38

8 0

2 years ago

What is the value of n? A. 36 B. 59 C. 95 D. 23

san4es73 [151]

X = 180 - 121 = 59°
y = 180 - 144 = 36°
n = (x+y) = 59 + 36 = 95°

Answer is С. 95°

8 0

3 years ago