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mylen [45]
3 years ago
10

Question 9 of 10

Mathematics
1 answer:
creativ13 [48]3 years ago
3 0

Answer:

the answer is D i believe

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How to find the exact value of each trigonometric function without a calculator?
Goryan [66]
Remember them is the best way to go.
draw the exact value triangles if you're unsure, but importantly, you just need to memorise these exact values.


5 0
3 years ago
PLEASE HELP 25 POINTSS I WILL GIVE BRAILIEST
kykrilka [37]

The solution to the system of equation is (1, 4).

In order to find this, we can first just see where the graphs intersect each other. This will give us the solution set.

As for what it represents, the x value in the increase in temperature and the y value is the increase in customers.

Therefore, we know that we want the temperature to go up by 1 (although we don't know the units) and that would result in the amount of people coming, and staying longer by 4 (again, we don't know the units of measure).

6 0
3 years ago
Solve the inequality k^2-7k+12.25>0
Ksivusya [100]

Answer:

k<3.5

Step-by-step explanation:

3 0
2 years ago
Find each percent decrease. round to the nearest percent. from $16 to $4​
White raven [17]

Answer:

I think the answer would be 40%

Step-by-step explanation:

U would do 16 divided by 4 and get 4 and a 0 then bam I have ur answe.

8 0
2 years ago
In a nursery class of 18 pupils, the average is 4<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20" id="TexFormula1"
Alisiya [41]

Answer:

The sum of ages of all 18 pupils in the class = 81

Step-by-step explanation:

Total number of pupil in the class =  18

Average of years in the class = 4\frac{1}{2}

Now, 4\frac{1}{2}  = 4 + \frac{1}{2}  = 4 + 0.5 = 4.5

⇒Average of sum of ages  in the class = 4.05

Let us assume the sum of ages of all students in the class = m

By the formula for AVERAGE:

\textrm{Average of n obseravtions}  = \frac{\textrm{Sum of n observations}}{\textrm{n}}

\implies 4.5 = \frac{m}{18}

or, m =  18 x 4.5 = 81

Hence, the sum of ages of all 18 pupils in the class = 81

6 0
2 years ago
Read 2 more answers
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