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
denpristay [2]
3 years ago
7

Help me please,Thanks

Mathematics
1 answer:
maxonik [38]3 years ago
6 0
<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>
You might be interested in
What are the vertex and xintercepts of the graph of the function below?<br> y=(x + 4)(x-2)
erik [133]

Yo sup??

y=(x+4)(x-2)

to find the x intercept put y=0

0=(x+4)(x-2)

so either x=-4 or x=2

Therefore the graph intersects the x axis at -4 and 2

Lenght of x intercept=|-4-2|=6 units

y=(x+4)(x-2)

=x^2+2x-8

This is an upward opening parabola

To find the coordinates of the vertex we can apply the formula

(-b/2a,-D/4a)

b=2

a=1

D=b^2-4ac

=4-4*1*(-8)

=4+32=36

Vertex=(-2/2*1,-36/4*1)

=(-1,-9)

Hope this helps.

3 0
3 years ago
In right triangle ABC, the measure of A is 25° and AB = 1. What is the length of AC?
gregori [183]

The answer will ve
1)0.9063
6 0
2 years ago
Solve by setting up a system of linear equations with 2 variables and 2 unknowns. Two hundred seventy six students enrolled in a
jeyben [28]

Let us say ,

x=number of students who passed

y=number of students who failed

total number of students =276

x+y=276..................(1)

We are given 5 times the number of students passed as failed.

x=5y.............(2)

plugging value of x from (2) in (1),

5y+y=276

6y=276

y=46

x=5y=46*5=230

x=number of students who passed=230

4 0
3 years ago
The graph shows different types of books in a class library.
xxTIMURxx [149]

Answer:

fb

Step-by-step explanation:

7 0
2 years ago
Evaluate<br> PLS HELP!!!
MrMuchimi

Answer:

4092

Step-by-step explanation:

r = 2

a1 = 4×(2)^(1 - 1) = 4

S10 = a1×((1 - r^10)/(1 - r)

= 4×((1 - 2^10)/(1 - 2))

= 4×((1 - 2^10)/-1)

= 4×(-(1 - 2^10))

= -4×(1 - 2^10)

= -4 + 4 × 2^10

= -4 + 2^2 × 2^10

= -4 + 2^12

= -4 + 4096

= 4092

3 0
2 years ago
Read 2 more answers
Other questions:
  • By what percent has the rhinoceros weight increased
    6·1 answer
  • If 4 people enter a bus that has 9 available seats, how many different ways can they be seated?
    9·1 answer
  • Evaluate 2times 8+5-18divided by3
    8·1 answer
  • a garden is in a shape of a rectangle ABCD and a semi circle AD the diameter of the semi circle carol is going to cover the gard
    14·1 answer
  • What is the slope of the line
    5·1 answer
  • Write the equation of the line that has the indicated slope and contains the indicated point. Express the final equation in stan
    15·1 answer
  • I am learning about estimating quotients using multiples. 188 divided by 5 =
    14·1 answer
  • Melanie worked last weekend at her part-time jobs. She
    7·1 answer
  • If ex + e⁻¹= 2, then x =..
    11·1 answer
  • Find the side length of the triangle.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!