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
11Alexandr11 [23.1K]
2 years ago
8

You are required to read any

Mathematics
1 answer:
Verdich [7]2 years ago
3 0
I think it would be 60. bc 15x4=60
You might be interested in
Which of the following statements is true? A. sin(j)>cos(L) B. sin(L)
olga2289 [7]

Answer:

a

Step by step explanation:

maybe

7 0
3 years ago
Solve for:<br><br><img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%20%2B%205x%20%3D%201" id="TexFormula1" title="x^{2} + 5x = 1
mixer [17]

x^2+5x-1=0\\x^2+5x+(\frac{5}{2})^2-(\frac{5}{2})^2-1=0\\(x+\frac{5}{2})^2-\frac{25}{4}-\frac{4}{4}=0\\(x+\frac{5}{2})^2-\frac{29}{4}=0\\(x+\frac{5}{2})^2=\frac{29}{4}\\x+\frac{5}{2}=\sqrt{\frac{29}{4}} , x+\frac{5}{2}=-\sqrt{\frac{29}{4}}\\x=\frac{\sqrt{29} }{2} - \frac{5}{2} , x=-\frac{\sqrt{29} }{2} - \frac{5}{2} \\x=\frac{\sqrt{29}-5 }{2} , x=-\frac{\sqrt{29} -5}{2}

4 0
3 years ago
A set of N = 20 exam scores has a mean of m = 50. The instructor discovered that an error was made grading one exam, so 20 point
tatuchka [14]

Answer:

The new mean for the exam scores is 51

Step-by-step explanation:

the mean can be calculated using the formula

mean of scores = \frac{Sum total    of scores}{Number of students}

before the 20 points was added, the mean of the score was = 50.

Inserting this into the formula, we have:

50 = \frac{Sum total}{20 students}

from this, we can compute the sum total of the scores as

sum total = 50 × 20 = 1000

when the extra 20 marks is added, the sum of the entire scores will be changed to 1000 + 20 = 1020.

Hence the new mean will be computed as (New Sum total of scores / Number of students)

= \frac{1020}{20} = 51.

∴ The new mean of the scores is = 51

8 0
3 years ago
Can someone explain this to me pls
Black_prince [1.1K]

Answer:

sory i cant explain but tell anser c

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Georgia gives 12 cookies to her friends. If that represents 15% of the cookies in the package, what is the total number of cooki
harina [27]
12/15% = 80

80x15% = 12
7 0
2 years ago
Other questions:
  • the hypotenuse of a right leg triangle is 12 centimeters, and the shorter leg is 6 centimeters. Find the length of the other leg
    12·1 answer
  • Each of these circles represents a pizza cut into 10 equal slices, and the yellow slices are the ones eaten by Larry.
    13·2 answers
  • I need help with this question someone please help ASAP!<br> I’ll mark brainliest!!!!!
    9·2 answers
  • What are the valúes of a, b, and c in quadratic equation -2x^2+4x-3=0
    15·1 answer
  • Help if you can plzz will mark you brainliest
    15·1 answer
  • Solve the system of linear equations using substitution. Show work please
    14·1 answer
  • How is an equation of the line that passes through the point (2,3) and has a slope of -6 written?​
    14·1 answer
  • A right triangle is shown below.<br> Which expression represents the value of sin 0?
    5·1 answer
  • Identify the vertex, equation of the axis of symmetry, y-intercept, and zeros of the graph of a quadratic function.
    6·1 answer
  • Which of the following could represent the interval −4 ≤ x ≤ 6?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!