All categories

3 years ago

I just need the answer the work isn't necessary

Mathematics

1 answer:

Ksivusya [100]3 years ago

6 0

Answer:

57°

Step-by-step explanation:

Vertical angles theorem states that vertical angles are congruent.

Arcs EF and are intercepted by vertical angles, therefore:

mAB = mEF = 36°

Angle addition postulate.

mABD = mAB + mBD

Central angle has same measure with intercepted arc.

mBD = m∠BCD = 21°

So the arc ABD is:

mABD = 36° + 21° = 57°

You might be interested in

The differential equation in Example 3 of Section 2.1 is a well-known population model. Suppose the DE is changed to dP dt = P(a

LuckyWell [14K]

Answer:

Decreases

Step-by-step explanation:

We need to determine the integral of the DE;

$dP/dt=P(aP-b)$

$dP=P(aP-b)dt$

$1/(dP^2-bP)dP=dt$

We can solve this by integration by parts on the left side. We expand the fraction 1/P²:

$1/(d-b/P)\cdot{P^2} dP$

let

$u=d-b/P$

$du/dP=b/P^2$

$dP=$ $\int\limits {P^2/b} \, du$

$P=lnu/b$

Substitute u in:

$P=ln(d-b/P)/b$

Therefore the equation is:

$ln(d-b/P)/b=t$

We simplify:

$d-b/P=e^b^t$

$P=b/(d-e^b^t)$

As t increases to infinity P will decrease

6 0

3 years ago

Which property is illustrated (m+7.3)+4.1=m+(7.3+4.1)

dlinn [17]

I think it is the Associative Property of Addition.

7 0

4 years ago

A student solved this problem and said the answer was 2 1 1/2 miles.

Cloud [144]

So do (21/2+49/4)-3/2=You get 21 1/4 miles
Since 21 1/4 is close to 21 1/2, this answer is reasonable. So A is the answer

4 0

4 years ago

The Holt family is purchasing 4 cell phones. Store A sells 3 cell phones that cost $165 each, which includes a fourth phone for

Scilla [17]

Answer:Store A

Step-by-step explanation:

Given

Store A sells 3 cells phones that cost $165 each and offer 4 th one free

i.e. Effective cost of each cell phone is $\frac{165\times 3}{4}=\$ 123.75$

Store B sells each cell phone at $\$ 135$ each

clearly, store A provides a better deal than B because the cost of 4 cell phones is less for Store A i.e.

$\Rightarrow 165\times3$

6 0

3 years ago

HELP HELP HELP HELP PLEASE HELP ME

insens350 [35]

Answer: C is the answer bc it is asking what is more grader

Step-by-step explanation:

8 0

3 years ago