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
gregori [183]
2 years ago
10

One equation in a system of equations is y=4x-5 write a second equation to complete the system if the solution to the system is

(3,7)
Mathematics
1 answer:
solong [7]2 years ago
8 0

Lo siento, no se la respuesta, desearia poder ayudarte a tener un buen dia

You might be interested in
What is 1/300000 as a decimal?
olasank [31]

Answer:

divide numerator by the denominator of the fraction.Mean you can divide it

Step-by-step explanation:

I am not sure my answer correct or not,hope you know it.

6 0
1 year ago
Which function in Excel is used to perform a test of independence? a. T.TEST b. CHISQ.TEST c. NORM.S.DIST d. Z.TEST
denis23 [38]

Answer:

b. CHISQ.TEST

Step-by-step explanation:

Notation and previous concepts

A chi-square test is "used to test if the variance of a population is equal to a specified value. This test can be either a two-sided test or a one-sided test. The two-sided version tests against the alternative that the true variance is either less than or greater than the specified value"

The statistic is given by:

\chi^2 = \sum_{i=1}^n \frac{(O_i-E_i)^2}{E_i}

In order to calculate the p value we need to have in count the degrees of freedom , on this case df=(rows-1)(#cols-1). And we can calculate the p value would be given by:

p_v =P(\chi^2 >\chi^2_{calc})

But the correct comand is given by:

b. CHISQ.TEST(Actual range, Expected range)

We just need to put in one column the Observed values and in other the expectec values.

3 0
3 years ago
I don't have a question but x + 8900 = 390<br>​
AleksandrR [38]

Answer:

you did it wrong you have to subtract X from 8900.

First you want to subtract 390 from 8900 and that equals

<h2>8510</h2>
5 0
2 years ago
How many terms are in the arithmetic sequence 9, 2, −5, . . . , −187?
Fantom [35]
9, 2, -5... so is going down by 7 each time, meaning the "common difference" is -7.

\bf n^{th}\textit{ term of an arithmetic sequence}\\\\&#10;a_n=a_1+(n-1)d\qquad &#10;\begin{cases}&#10;n=n^{th}\ term\\&#10;a_1=\textit{first term's value}\\&#10;d=\textit{common difference}\\&#10;----------\\&#10;a_1=9\\&#10;d=-7\\&#10;a_n=-187&#10;\end{cases}&#10;\\\\\\&#10;-187=9+(n-1)(-7)\implies -187=9-7n+7&#10;\\\\\\&#10;7n=9+7+187\implies 7n=203\implies n=\cfrac{203}{7}\implies \boxed{n=29}
4 0
3 years ago
E
Evgesh-ka [11]

Answer:

He bought 20 shirts

Step-by-step explanation:

shirts -- x

pants -- 3/4 of x

Therefore,

He bought --- 28(3/4 of x) pants and 40(x) shirts.

So, 28(3/4 of x) + 40(x) = 1220

=> 21x + 40x = 1220

=> 61x = 1220

=> x = 20

He bought 20 shirts and 15 pants.

Thenks and meak me brainliest :))

3 0
2 years ago
Other questions:
  • Let f(x) = −8x2 − 5x and g(x) = 17x2 + 11x. Find f(x) − g(x).
    5·1 answer
  • Replace ​(. ) ​ with &lt;, &gt;, or = to make a true statement.
    15·1 answer
  • Arthur leaves for school going 55 steps per minutes. DW leaves 8 minutes later going 80 steps/min. How long does it take DW to c
    11·1 answer
  • Use a strategy to solve this problem. (Note: I seriously need help and this is due on Sunday!!)
    10·1 answer
  • What is the domain of the function y=-4x-1 when the range is -25
    9·1 answer
  • Order the expressions from least to greatest. √63 √50 √49
    11·2 answers
  • A cube has an edge length of 5 inches, and a side length of 15. What is the volume?
    7·1 answer
  • An old truck has a fuel efficiency rating of 12 mpg. What is the cost
    11·1 answer
  • Barbara worked 30 hours last week. She
    8·1 answer
  • (100 points) ASAP need help with khan academy practice
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!