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OlgaM077 [116]
3 years ago
14

How to solve quadratic equations by completing the square problems?

Mathematics
1 answer:
babunello [35]3 years ago
8 0
You don't solve a quadratic equation using completing the square
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Pls send help my waayyy​
soldier1979 [14.2K]

Answer:

B

Step-by-step explanation:

110 / 22 = 5 inches per picket

equation is y = 5x

3 0
3 years ago
Help me please. <br>Help me please. <br>Help me please.
Gnesinka [82]
A)
To be similar triangles have to have equal angles
triangle ZDB' 
1)angle Z=90 degrees
triangle B'CQ
1) angle C 90 degrees

angle A'B'Q=90
DB'Z+A'B'Q+CB'Q=180, straight angle
DB'Z+90+CB'Q=180
DB'Z+CB'Q=90

triangle ZDB'
DZB'+DB'Z=180-90=90

DB'Z+CB'Q=90
DZB'+DB'Z=90
DB'Z+CB'Q=DZB'+DB'Z
2)CB'Q=DZB' (these angles from two triangles ZDB' and B'CQ )
3)so,angles DB'Z and B'QC are going to be equal because of sum of three angles in triangles =180 degrees and 2 angles already equal.
so this triangles are similar by tree angles
b)
B'C:B'D=3:4
B'D:DZ=3:2
CQ-?
DC=AB=21
DC=B'C+B'D (3+4= 7 parts)
21/7=3
B'C=3*3=9
B'D=3*4=12
B'D:DZ=3:2
12:DZ=3:2
DZ=12*2/3=8
B'D:DZ=CQ:B'C
3:2=CQ:9
CQ=3*9/2=27/2

c)
BC=BQ+QC=B'Q+QC
BQ' can be found by pythagorean theorem



3 0
3 years ago
What's 13/20 converted into a decimal
vivado [14]
.65 

13/20
Just simply divide and you get .65
6 0
3 years ago
Read 2 more answers
Trigonometry<br> Use trigonometry functions to find the area <br> In ΔABC, AB=21, AC=16, and m
KIM [24]

Answer:

154.6 units²

Step-by-step explanation:

½ × 21 × 16 × sin(67)

154.644815388

7 0
3 years ago
What is the perimeter of △RST?
amid [387]

Answer:

b

Step-by-step explanation:

sorry if its wrong:/

3 0
3 years ago
Read 2 more answers
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