All categories

3 years ago

Need help with this question, much appreciated.

Mathematics

1 answer:

taurus [48]3 years ago

8 0

Answer:

75 degrees

Step-by-step explanation:

1. Find angle J.

The outside angle and angle J are supplementary, which means they add up to 180 degrees.

180 - 130 = 50.

So angle J is 50 degrees.

2. The angles in a triangle add up to 180. Add up angles J and K and subtract that from 180

50 +65 = 105

180- 105 = 75

You might be interested in

2d+7/6-d-5/3=0 Tell me the answer

Inessa [10]

Answer:

d=1／2

Step-by-step explanation:

$2d + \frac{7}{6} - d - \frac{5}{3} = 0 \\ 2d - d = \frac{5}{3} - \frac{7}{6} \\ d = \frac{10}{6} - \frac{7}{6} \\ d = \frac{3}{6} \\ d = \frac{1}{2}$

3 0

3 years ago

Ashley's older brother, Jamaal, is planning to ride his bicycle from Los Angeles to Washington D.C., a distance of 2,668 miles,

GenaCL600 [577]

Answer:

60 miles

Step-by-step explanation:

This means the number of days he will ride is

45 days

Hence, the minimum number of miles that Jamaal must ride each day with his new plan is calculated as:

Total number of miles/Number of days

= 2668 miles /45 days

= 59.288888889 miles

Approximately to the nearest whole number = 60 miles

Hence, the minimum number of miles Jamal must ride each day is 60 miles

4 0

3 years ago

Solve sin2theta=2sinthetacostheta

pashok25 [27]

Answer:

$\sin(2\theta) =2 \sin \theta \cos \theta$ proved

Step-by-step explanation:

Given

$\sin2 \theta=2 \sin\theta cos\theta$

Required

Prove

Proving from left to right.

$\sin(2\theta) = \sin(\theta+\theta)$

In trigonometry

$\sin(A+B) = \sin A \cos B+\sin B \cos A$

When this formula is applied to: $\sin(2\theta) = \sin(\theta+\theta)$

We have:

$\sin(2\theta) = \sin \theta \cos \theta+\sin \theta \cos \theta$

$\sin(2\theta) =2 \sin \theta \cos \theta$

<em>Proved</em>

4 0

3 years ago

How should the decimal point in 948.921 change to get the correct answer to 948.921 ÷ 10 to the power of 4?

k0ka [10]

Answer:

move it 4 places to the left

Step-by-step explanation:

10 to 4th power is basically 10000 so 948.921 divided by 10000 so its obvious it will not move to the right, making the number bigger.

8 0

3 years ago

Read 2 more answers

Billy is two years older than his friend Josh. If the sum of their ages is 26, how old are Billy and Josh?

rodikova [14]

Answer:

Billy= 14

Josh= 12

I think i over thank this

6 0

3 years ago