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
Vesnalui [34]
3 years ago
8

The sum of two consecutive numbers is 157. This equation, where n is the first number, represents the situation:

Mathematics
2 answers:
svp [43]3 years ago
4 0

Answer:

Step-by-step explanation:

2n + 1 = 157

2n = 157 - 1

2n = 156

n = 156/2

n = 78

lina2011 [118]3 years ago
3 0

Answer:

the answer is B.78

Step-by-step explanation:

2n + 1 = 157

2n = 157 - 1

2n = 156

n = 156/2

n = 78

You might be interested in
give the most general solutions to equations. . 2sinxcosx-sin(2x)cos(2x)=0. . A. simplify the first expression using double angl
Zinaida [17]
2sinxcosx - sin(2x)cos(2x) = 0 

<span>Part I </span>
<span>The double angle identity for sine states that sin(2x) = 2sinxcosx </span>
<span>Thus we get: </span>
<span>sin(2x) - sin(2x)cos(2x) = 0 </span>

<span>Part II </span>
<span>sin(2x)(1 - cos(2x)) = 0 </span>

<span>Part III </span>
<span>Either sin(2x) = 0 or </span>
<span>1 - cos(2x) = 0 </span>
<span>=> cos(2x) = 1 </span>

<span>For sin(2x) = 0, this is true for </span>
<span>2x = n(pi) where n = 0, 1, 2, .... </span>
<span>x = n(pi/2) </span>

<span>For cos(2x) = 1, this is true for </span>
<span>2x = n(pi) where n = 0, 2, 4, .... </span>
<span>x = n(pi/2)
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly.
5 0
3 years ago
When designing a study to determine this population proportion, what is the minimum number of drivers you would need to survey t
Vlada [557]

Answer: 601

Step-by-step explanation:

The formula to find the minimum sample size(n) , if the prior population proportion is unknown:

n=0.25(\dfrac{z^c}{E})^2, where E = margin of error , z^c = critical z-value for confidence level c.

Given : E  = 0.04

Z-value for 95% confidence = 1.96

So, the minimum sample size required = 0.25(\dfrac{1.96}{0.04})^2=0.25(49)^2

= 0.25\times 2401=600.25\approx601

Hence, the minimum sample size required = 601

6 0
2 years ago
Which is the equation of the parabola?
mestny [16]

Answer:

  • y = -1/20(x + 3)²

Step-by-step explanation:

<u>Consider the parent function:</u>

  • y = x²

The graph of the function open up and the vertex is at the origin, the point (0, 0)

Now, if it opens down, it means it is a reflection of the parent function over x axis, hence it has a negative coefficient, the function becomes:

  • y = -x²

The vertex is shifted to the point (-3, 0). It means the function also translated left by 3 units, the function becomes:

  • y = -(x + 3)²

<u>Since all the options have 1/20 as a coefficient, our function is:</u>

  • y = -1/20(x + 3)²

This is option B

6 0
3 years ago
Which number from the set of numbers {3, 5, 6, 7} makes the equation below TRUE?
beks73 [17]

Answer:

6

Step-by-step explanation:

replace x with 6 in the ecuation.

4(6)=24 - 8 =16

5 0
3 years ago
Read 2 more answers
Solve the equation 16x^3+16x^2-x-1=0 given that -1/4 is a zero of f(x)= 16x^3+16x^2-x-1. Solution set is ___
Keith_Richards [23]

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What is 5 3/8 - 3 2/5 ( like fractions w a whole number )
    8·2 answers
  • The measure of major arc TBU is_degrees.
    11·1 answer
  • What is this 1/6 + 2/18
    10·1 answer
  • Identify the graph of 3x^2+y^2=9 for T(-1,3) and write an equation of the translated or rotated graph in general form.
    10·2 answers
  • If a Diplodocus ate 5 trees 3 times a day, how many would he eat in two days?
    11·2 answers
  • Write an equation of the line passing through the point (1, 8)​ that is perpendicular to the line x+8y=5​
    15·1 answer
  • Ryan sprinted 139 feet. How many yards did he sprint
    13·1 answer
  • A student is writing a research paper and must include sources from both magazines and books.
    10·1 answer
  • Is {(-2,1),(-1,2),(0,3),(1,4) } a function?
    14·1 answer
  • 6. In a survey, 25 out of 200 students indicated they would vote for Xaria for class president. If 1,000
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!