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natita [175]
3 years ago
12

PLEASE HELP. ITS ABOUT GRIDS (x,y). ILL DO ANYTHING. ITS 7TH GRADE MATH PLEASE OMG

Mathematics
2 answers:
elena-14-01-66 [18.8K]3 years ago
6 0
Square root=4.5

this is the answer i promise
Alexxandr [17]3 years ago
3 0

Answer

: 4.5

Step-by-step explanation:

a^2+b^2=c^2

4^2+2^2=20

Square root of 20 = 4.5

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2m=-6n-5 literal equation
Bingel [31]

Answer:

read below

Step-by-step explanation:

Alright, archtan /  

tan

−

1

(

x

)

is the inverse of tangent. Tan is  

sin

cos

. Like the inverse of sin, the inverse of tan is also restricted to quadrants 1 and 4.

Knowing this we are solving for the inverse of tan -1. We are basically being asked the question what angle/radian does tan(-1) equal. Using the unit circle we can see that tan(1)= pi/4.

Since the "Odds and Evens Identity" states that tan(-x) = -tan(x). Tan(-1)= -pi/4.

Knowing that tan is negative in quadrants 2 and 4. the answer is in either of those two quadrants. BUT!!! since inverse of tan is restricted to quadrants 1 and 4 we are left with the only answer -pi/4.

the answer is m=-3n-5/2 or n=2m+5/6

8 0
3 years ago
Which expressions are equivalent to 12a+24b+36?
DochEvi [55]
See photo for solution

3 0
4 years ago
In recent years the mean number of miles driven per year by residents of a particular state was 11,568. A researcher wishes to t
aleksandrvk [35]

Answer:

The degrees of freedom are given by:

df =n-1= 62 -1=61

And we want to find a critical value on the t distribution with 61 degrees of freedom who accumulates 0.025 of the area on each tail and the critical value would be t_{\alpha/2}= \pm 2.00

And the rejection region would be |t_{calc}| >2.00

Step-by-step explanation:

Data given and notation  

\bar X=10822 represent the sample mean  

s=1741 represent the sample standard deviation

n=62 sample size  

\mu_o =11568 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the true mean differs from 11568, the system of hypothesis would be:  

Null hypothesis:\mu =11568  

Alternative hypothesis:\mu \neq 11568  

The degrees of freedom are given by:

df =n-1= 62 -1=61

And we want to find a critical value on the t distribution with 61 degrees of freedom who accumulates 0.025 of the area on each tail and the critical value would be t_{\alpha/2}= \pm 2.00

And the rejection region would be |t_{calc}| >2.00

8 0
3 years ago
Can SOMBODY please help me with this?
nadya68 [22]
The answer is 6 days.

36/6=6

Hope this helps! :))
3 0
3 years ago
A drag racer accelerated from 0 m/s to 200 m/s in 5 s.what was the acceleration
tatuchka [14]

Answer:

40 m/s/s.

Step-by-step explanation:

Acceleration = velocity / time

= 200 / 5

= 40 m/s/s.

5 0
4 years ago
Read 2 more answers
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