All categories

3 years ago

Please help answer this question! I will mark brainliest, and greatly appreciate your help!

Mathematics

1 answer:

Nataly [62]3 years ago

3 0

Answer:

15°

Step-by-step explanation:

sorry if I'm wrong but I think you need to add up all the ° and then subtract that number from 100 to get your answer in which in this case the answer would be 15°

You might be interested in

A central angle theta in a circle of radius 7 m is subtended by an arc of length 8 m. Find the measure of theta in degrees. (Rou

gogolik [260]

Answer: In degrees , The measure of $\theta=65.5^{\circ}$

In radians , the measure of $\theta =\dfrac{8}{7}\text{ radians}$ .

Step-by-step explanation:

We know that the formula for length of arc is given by :-

$l=\theta r$

, where $\theta$ = Central angle subtended by arc.

r= radius of the circle.

As per given , we have

Radius of circle : r=7 m

Length of arc : l= 8 m

Substitute these values in the above formula , we get

$8=\theta (7)\\\\\Rightarrow\ \theta =\dfrac{8}{7}\text{ radians}$

Hence, the measure of $\theta =\dfrac{8}{7}\text{ radians}$ .

To convert it into degrees we multiply it with $\dfrac{180^{\circ}}{\pi}$

The measure of $\theta =\dfrac{8}{7}\times\dfrac{180^{\circ}}{\pi}$

$=(\dfrac{8\times180}{7\times3.14})^{\circ}=65.5141037307^{\circ}$

$\approx65.5^{\circ}$

Hence, the measure of $\theta=65.5^{\circ}$

8 0

3 years ago

ABC est un triangle rectangle en B.<br> On donne : AB = 7:BC = a et AC = a +5.<br> Calcule a

Afina-wow [57]

Answer:

Step-by-step explanation:

salut :

en utilisant le theorem de Pythagore on obtient :

AC²= AB² + BC²

(a+5)² = 7²+a²

a²+10a+25 = 49+a²

10a+25 =49

10a =24

donc : a = 24/10 = 12/5 = 2.4 unit

8 0

3 years ago

11-1/2y=3+6 I need the answer for y so solve for y

Setler [38]

Answer:

y=6

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

I need to know the start value!!

dedylja [7]

Answer: <em>is it 4, maybe?</em>

7 0

4 years ago

The ratio of green marbles to yellow marbles in Naafay's bag is equal to 2:3. What percent of the marbles in the bag are green m

mina [271]

It is 80% just writing random things so it can be 20 words

7 0

3 years ago