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Dvinal [7]
3 years ago
6

I need help on number one

Mathematics
1 answer:
Harman [31]3 years ago
7 0
180=90+50+x
180=140+x
x=180-140=40

X=40
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GEOMETRY PROOFS!
yarga [219]

From the given figure ,

RECA is a quadrilateral

RC divides it into two parts

From the triangles , ∆REC and ∆RAC

RE = RA (Given)

angle CRE = angle CRA (Given)

RC = RC (Common side)

Therefore, ∆REC is Congruent to ∆RAC

∆REC =~ ∆RAC by SAS Property

⇛CE = CA (Congruent parts in a congruent triangles)

Hence , Proved

<em>Additional</em><em> comment</em><em>:</em><em>-</em>

SAS property:-

"The two sides and included angle of one triangle are equal to the two sides and included angle then the two triangles are Congruent and this property is called SAS Property (Side -Angle-Side)

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Consider the proof. Given: Segment AB is parallel to line DE. Prove: AD/DC = BE/EC What is the missing statement in Step 5? A.) AC = BC B.) AC/DC = BC/EC C.) AD...

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4 0
2 years ago
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So far this season, Shawn has averaged 5 out of 11 free throws per game. Based on his previous performance, how many free throws
olganol [36]
The answer is 10,I think
8 0
3 years ago
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If the rate of inflation is 3.4%per year, the future price pt(in dollars) of a certain item can be modeled by the following expo
Doss [256]

Answer:

The current price is $3000 and price after 9 years from today is $4054.

Step-by-step explanation:

The future price pt(in dollars) of a certain item can be modeled by the following exponential function

p(t)=3000(1.034)^t

where, t is the number of years from today.

Substitute t=0 to find the current price.

p(0)=3000(1.034)^0=3000

Therefore the current price is $3000.

Substitute t=9 to find the price after 9 years from today.

p(9)=3000(1.034)^9

p(9)=3000(1.35109177087)

p(9)=4053.27531261

p(9)\approx 4054

Therefore the price after 9 years from today is $4054.

4 0
3 years ago
What is the domain of the function y = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D" id="TexFormula1" title="\sqrt{x}" alt="
tatiyna

Answer:

C is the answer

Step-by-step explanation:

The domain can't be minus. That's the only stipulation. It can be equal to 0 or anything larger than 0. It just can't go into the minus numbers.

0≤x<infinity.

C

4 0
3 years ago
Factor each polynomial<br> 4z^2+4z-15
Mkey [24]

Answer:

(2z + 5)(2z - 3)

Step-by-step explanation:

4z² + 4z - 15

4z² + 10z - 6z - 15

2z (2z + 5) - 3 (2z + 5)

(2z + 5)(2z - 3)

7 0
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