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irina1246 [14]
2 years ago
7

Help ASAP!!!! Thanks

Mathematics
1 answer:
Tema [17]2 years ago
8 0

Answer:

No DB is not a perpendicular bisector of AC

Step-by-step explanation:

This is because as AC is a straight line it's angle degree is 180 which when bisected by DB becomes,

180 ÷ 2 = 90

On both the angles i.e <BDC = <NDA = 90°

To make it a perpendicular bisector but

<BDC is not equal to <NDA is not equal to 90°.

Hence, DB is not a perpendicular bisector of line AC.

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I need help I'm stuck on this
ddd [48]

a) The length of p is 21.4 cm

b) The measure of angle P is 45.6°

<h3>Trigonometry </h3>

From the question, we are to determine the length of p

From the <em>Pythagorean theorem</em>, we can write that

30² = 21² + p²

p² = 30² - 21²

p² = 900 - 441

p² = 459

p = √459

p = 21.4 cm

∴ The length of p is 21.4 cm

b)

Measure of angle P

Using SOH CAH TOA

cos P= \frac{21}{30}

cos P = 0.7

P = cos⁻¹(0.7)

P = 45.6°

Hence, the measure of angle P is 45.6°

Learn more on Trigonometry here: brainly.com/question/17831932

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5 0
1 year ago
Please help please please help<br> i have tried everything i could think of but i cant figure it out
Vera_Pavlovna [14]

Answer:

\frac{\sqrt[4]{10xy^3}}{2y}

Step-by-step explanation:

I am assuming you want me to rationalize the denominator.

6 0
2 years ago
Calculate the length of the circumference of a circle with a diameter of 14cm (2dp)
kondaur [170]
C= 2 (pi) r

d= 14 cm

d= 2r 

r= 7 cm

c= 2 (pi) (7cm)
c= 43.98

hope that helps

3 0
2 years ago
Write equation for the center(-1,0) radius of 6
Ira Lisetskai [31]

Answer:

(x+1)² + y² = 36

Step-by-step explanation:

<u>Equation of a circle:</u>

(x-h)² + (y-k)² = r²

Center: (h,k)

Radius: r

Given a center of (-1,0) and a radius of 6, we have for our equation:

(x-(-1))² + (y-0)² = 6²

(x+1)² + y² = 36

3 0
2 years ago
Need Help with #5<br> 4 pts
olga_2 [115]
Answer = 10=21


When you’re multiplying numbers with exponents with the same base (10 is the base) all you have to do is add the exponents

18 and 3 are the exponents we’re dealing with, so we add them and get 21. The base stays the same

10^18 x 10^3 = 10^21

Answer = 10=21
8 0
3 years ago
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