1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Georgia [21]
2 years ago
9

Use trigonometry to find the unknown side (round to 1 decimal)​

Mathematics
2 answers:
artcher [175]2 years ago
5 0

Answer:

1 1 1 1

Step-by-step explanation:

Kazeer [188]2 years ago
5 0

Answer:

a = 7.5

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin30° = \frac{1}{2} , then

sin30° = \frac{opposite}{hypotenuse} = \frac{a}{15} = \frac{1}{2} ( cross- multiply )

2a = 15 ( divide both sides by 2 )

a = 7.5

You might be interested in
You have $55,000 in your savings account that pays 2.5% annual interest and the inflation rate is 3.4%. how much buying power in
lianna [129]
Your interest formula is given to you. 

<span>Interest in a year = principal (the amount invested) * rate (the interest rate) * period (the time you're measuring) </span>

<span>Interest = 55,000 * 2% * 1 year = 55,000 * 0.02 * 1 = $1,100 </span>

<span>How much would you need to have made for your spending power to keep with inflation? Your interest rate would have needed to match the inflation rate, otherwise, prices are going up faster than you're saving. </span>

<span>Required interest = 55,000 * 3.24% * 1 year = 55,000 * 0.0324 * 1 = $1,782 </span>

<span>How much buying power did you lose? The difference between your required interest and your actual interest. </span>
<span>Buying power lost = 1,782 - 1,100 = $682. You lost this much in buying power. </span>
6 0
3 years ago
Read 2 more answers
Given f(x)=3x+4. Determine the value of x if f(x)=21 to the nearest tenth.
ella [17]

Answer:

5.7

Step-by-step explanation:

3x+4 = 21

3x = 17

x = 5.666667 = 5.7

6 0
3 years ago
Find the radius and diameter of circle A, if the endpoints of the radius<br> are (-2, -1) and (6,4).
AleksandrR [38]

Step-by-step explanation:

length \: between \: ( - 2, - 1) \: and \: (6,4) \\  =  \sqrt{(x _{1} - x  _{2} )² + (y _{1}  - y _{2})²  }  \\  =  \sqrt{( -  2 - 6)²+ ( - 1 - 4)²}  \\  =   \sqrt{64 + 25}  \\  =  \sqrt{100}  \\  = 10 \: units \\ radius = 10 \: units \\ diameter = 2 \times radius \\ d = 2 \times 10 \\ d = 20 \: units

8 0
2 years ago
Un<br> How many solutions does this system have?<br> 12x-4y=-8<br> y=3x+2
Talja [164]

Answer:

Infinite

Step-by-step explanation:

Get both in the form y = first.

12x - 4y = -8

-4y = -8 - 12x

y = 2 + 3x

y = 3x + 2

These are the same line so all points are the same so that means there are infinite answers.

If ONLY the number in front of the x was the same there would be 0 answers, they would be parallel lines, and if the number in front of the xs were different there would only be one answer.  

3 0
2 years ago
Divede decimals by a whole number in this question 3.9÷3​
IgorC [24]

Answer:

The answer is 1.3, 1 3/10

4 0
2 years ago
Read 2 more answers
Other questions:
  • (2ײy²)⁰ I need help with exponents ​
    10·2 answers
  • What is 260% as a fraction in simplest form
    9·2 answers
  • Marlon withdrew $25 from his savings account every week for 5 weeks. Which expression is the best choice to help him determine t
    5·1 answer
  • The football team has a total of 50 jerseys. There are 5 medium-sized jerseys. What percent of the jerseys are​ medium-sized jer
    15·2 answers
  • Alexandra wants to design a game. In the game that Alexandra wants to create, it will involve two spinners and a game mat. The f
    14·1 answer
  • Please please helppp answer correctly !!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!
    11·1 answer
  • Determine if the two triangles are congruent. If they are, state how you know.
    9·1 answer
  • Write each power as a product of the same factor then find the value of 10 power 6
    9·1 answer
  • The value of p in the equation 2p - 3 = p + 2 Is ​
    8·2 answers
  • In 3-4 complete sentences, write an explanation of how you can prove that triangles with all pairs of corresponding side lengths
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!