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Dvinal [7]
3 years ago
12

can someone help me with this i have autism and my parents aren't home I need some help with this pls will give brainly

Mathematics
1 answer:
mote1985 [20]3 years ago
5 0

Answer:

are you able to retake the picture? its a little blurry, that would be great!

Step-by-step explanation:

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Find the missing value. Show your work. please
Sophie [7]
#1
sin(51^o)= \frac{y}{12} \ \ \to \ \ y=12*sin(51^o)=12* 0.7771 \approx 9.33

#2
\theta=arccos( \frac{5^2+13^2-12^2}{2*5*13}) = arccos( \frac{25+169-144}{130})=arccos( \frac{50 }{130})= \\ \\ arccos(0.3846) \approx67.4^o

#3
tan(13^o)= \frac{x}{24} \ \ \to \ \ x=24*tan(13^o)=24* 0.2309 \approx 5.54

#4
sin(20^o)= \frac{10}{x} \ \ \to \ \ x= \frac{10}{sin(20^o)} = \frac{10}{0.342}  \approx 29.24
5 0
4 years ago
Which of the following statements are not true?
Ulleksa [173]

Answer:

1.false. 2.true 3.false 4.true

8 0
3 years ago
HELP ME PLS ILL MARK AS BRAINLESS
faltersainse [42]

Answer:

A: 12:18

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
A model of a car is made to a scale of 1:40.
Y_Kistochka [10]

Answer:

2025 m squared

Step-by-step explanation:

1:45

45

to get from 1 to 45, you times by 45.

to find the volume, times 45 by 45 for the second ratio

=2025 m squared

4 0
3 years ago
What are the solutions of 3x2 + 6x + 6 = 0?
AlladinOne [14]
The solutions or roots to this equation is found by solving for x. We can do this a couple ways either by FOIL or quad formula

3x^2+6x+6=0
3(x^2+2x+2)=0

x^2+2x+2=0 we cant FOIL this out so we use the quad formula

x= [(-b+\-sqrt(b^2-4ac))/2a]

x= -2+\- sqrt(4-4(1)(2))/2(1)
x= -1 +i , -1 - i

So we have complex roots since our quad formula returned a negative number. Whenever the quad formula answer is positive we have two roots/solutions, when it is zero we have one root/solution, and whenever it is negative we have Complex roots/solutions

Hope this helps. Any questions please just ask. Thank you.
7 0
3 years ago
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