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valentina_108 [34]
2 years ago
13

Can someone help me picture inserted

Mathematics
2 answers:
densk [106]2 years ago
7 0

Answer:

~77°

Step-by-step explanation:

cosQ = 9/40

inverse cosine(9/40) ≈ 77° = Q

zimovet [89]2 years ago
4 0
~77 is the answerrrrrrrrrrrrrrrr
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the family free skate

Step-by-step explanation:

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I have attached the answer. Hope it helps.
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Tyler believes that an 8-sided die can be used to predict whether customers at his store will use a coupon when making their pur
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"1 indicating a coupon and all other outcomes indicating no coupon"
Probability is (number of successful outcomes) / (number of possible outcomes)

Theoretical Probability of rolling a 1: 1/8 

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How did astronomer Yi Xing (A.D. 683-727) contribute to the development of mathematics in china?
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Answer:

Yi Xing invented the astronomical clock and introduced some new methods of interpolation in mathematics.

Step-by-step explanation:

Yi Xing was both an astronomer and a mathematician during the era. He invented the astronomical clock which was more accurate than the initial water and Sun's clock in use.

Furthermore, Yi Xing also discovered some new methods of interpolation in mathematics of which the meaning and interpretation became controversial. Interpolation is a method majorly in mathematics that can be used to estimate a value of a function from its discrete values. It involves first order differences and second order differences.

Also, Yi Xing was able to design a calendar in A.D. 727.

4 0
3 years ago
Evaluate the expression when x=-5 <br> X^2 + 6x-9
d1i1m1o1n [39]

The value of the function f(x) = x² + 6x - 9 when x = -5 is  -14.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

An independent variable is a variable that does not depends on other variable while a dependent variable is a variable that depends on other variable.

Given that:

f(x) = x² + 6x - 9

When x = -5:

f(-5) = (-5)² + 6(-5) - 9 = -14

The value of the function f(x) = x² + 6x - 9 when x = -5 is  -14.

Find out more on equation at: brainly.com/question/2972832

#SPJ1

5 0
1 year ago
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