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
snow_lady [41]
3 years ago
13

A1 = -7 a18 = 3393 find d

Mathematics
1 answer:
Ugo [173]3 years ago
4 0

Answer:

d = 200

Step by Step Explanation:

You might be interested in
.<br> 1.<br> f(x) = -2lx- 3| +1<br><br> How do I graph this?
ira [324]

Answer:

See explanation

Step-by-step explanation:

f(x) = -2lx-3| +1

1.lx-3|==>Translate the basic absolute value graph f(x)=|x| 3 units to the right

2. -lx-3| ==> Flip the graph over the x-axis

3. -2lx-3| ==> Double all the y-coordinates of the graph

4. -2lx-3| +1 ==> Translate the graph 1 unit up

4 0
1 year ago
Read 2 more answers
Can someone help me?
olchik [2.2K]

Answer:

with what

Step-by-step explanation:

dont see nothinfg

4 0
2 years ago
Read 2 more answers
What’s is the answer to2(9)+7
AveGali [126]
The answer would be 25

9 times 2 is 18 plus 7 is 25
4 0
3 years ago
Read 2 more answers
Find the value of sin(a/2) if cosa= 12/13<br>​
daser333 [38]

Answer: sin\frac{a}{2} = ± \frac{1}{\sqrt{26} }

Step-by-step explanation:

We very well know that,

cos2A=1−2sin²A

⟹ sinA = ±\sqrt{(1-} \frac{cos2A}{2} )

As required,  set A = \frac{a}{2}   &   cos a=  \frac{12}{13}    ,thus we get

sin \frac{a}{2} =± \sqrt{\frac{1-cos a}{2} }  

∴ sin\frac{a}{2} =±\sqrt{\frac{1-\frac{12}{13} }{2} } = ± \frac{1}{\sqrt{26} }

   since ,360° < \frac{a}{2} <450°

             ,180° < \frac{a}{2} <225°

Now, we are to select the value with the correct sign. It's is obvious from the above constraints that the angle a/2 lies in the III-quadrant where 'sine' has negative value, thus the required value is negative.

hope it helped!

   

5 0
3 years ago
1. How many variables are involved in the chi-square test?
GarryVolchara [31]

The result of the respective questions are:

  • This chi-square test only takes into consideration one variable.
  • The  type of chi-square test this is is a Goodness of Fit
  • df= 3
  • NO

<h3>How many variables are involved in the chi-square test?</h3>

a)

This chi-square test only takes into consideration one variable.

b)

The  type of chi-square test this is, is a Goodness of Fit

To test the hypothesis, we must determine whether the actual data conform to the assumed distribution.

The "Goodness-of-Fit" test is a statistical hypothesis test that determines how well the data that was seen resembles the data that was predicted.

c)

Parameter

n = 4

Therefore

Degrees of freedom

df= n - 1

df= 4 - 1

df= 3

d)

In conclusion

Parameters

\alpha = 0.05

df = 3

Hence

Critical value = 7.814728

Test statistic = 6.6

Test statistic < Critical value, .

NO, the result of this test is not statistically significant.

Read more about Probability

brainly.com/question/11234923

#SPJ1

3 0
2 years ago
Other questions:
  • Calculate the area of triangle ABC with altitude CD, given A(6,-2) B(1,3) C(5,5) D(2,2)
    8·1 answer
  • Josie is 11 years older than macy
    7·1 answer
  • What is the surface area of 4ft 4ft 4ft
    13·2 answers
  • The youth group is going on a trip to the state fair. The trip costs $63. Included in that price is $13 for a concert ticket and
    12·2 answers
  • Confused on the second part
    7·1 answer
  • Need answer now. Find m
    12·1 answer
  • Please help me answer this :) and explain how you got your answer ! ( will give brainslt )
    10·2 answers
  • What’s the sum of 1,015 and 119? <br> A. 1,314<br> B. 1,224<br> C. 896<br> D. 1,134
    9·2 answers
  • NEED HELP! ILL GIVE YOU BRAINLIEST I PROMISE
    5·1 answer
  • he marketing department at an online site wants to identify the average age of its users. a sample of 56 uses is selected. the a
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!