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
marshall27 [118]
3 years ago
12

I need some Help please :)

Mathematics
1 answer:
pychu [463]3 years ago
5 0
I think it’s the last one
You might be interested in
What is the conjugate of (x2-6)?
Mama L [17]

Answer:

2(x - 3)

Step-by-step explanation:

3 0
3 years ago
Subtract and write out in minutes and seconds 87 seconds from 100 seconds
alexandr402 [8]

Answer:

  00:13  mm:ss

Step-by-step explanation:

There are 60 seconds in a minute. This fact can be used to convert the time period(s) to minutes and seconds either before or after you do the subtraction.

<h3>Difference</h3>

It is often convenient to do arithmetic with all of the numbers having the same units. Here, we are given two values in seconds and asked for their difference.

  100 s - 87 s = (100 -87) s = 13 s

The difference between the two time periods is 0 minutes and 13 seconds.

<h3>Conversion</h3>

If you like, the numbers can be converted to minutes and seconds before the subtraction. Since there are 60 seconds in a minute, the number of minutes is found by dividing seconds by 60. The remainder is the number of seconds that will be added to the time in minutes:

  87 seconds = ⌊87/60⌋ minutes + (87 mod 60) seconds

  = 1 minute 27 seconds

  100 seconds = ⌊100/60⌋ minutes + (100 mod 60) seconds

  = 1 minute 40 seconds

Then the difference is found in the same way we would find a difference involving different variables. (A unit can be treated as though it were a variable.)

  (1 min 40 s) -(1 min 27 s) = (1 -1 min) + (40-27 s) = 0 min 13 s

The difference between the two time periods is 0 minutes and 13 seconds.

5 0
1 year ago
What is the value of x?
Artist 52 [7]

x^2=40^2+9^2\\x^2=1600+81\\x^2=1681\\x=\sqrt{1681}=41

7 0
3 years ago
Read 2 more answers
ABCDEFGHIJ is a regular decagon and the measure of &lt;D is 144º. What is the measure of &lt;A?
AnnyKZ [126]

Answer:

1. 144⁰

2. 60⁰

Step-by-step explanation:

The formula to find the measure of the interior angles of a regular polygon is:

m< = (n - 2) • 180/n where n = the number of sides

For a decagon, there are 10 sides.

m< = (10-2) • 180/10 = 144°

A regular polygon/equilateral triangle is defined as having equal sides and angles.

4 0
3 years ago
Read 2 more answers
I need an accurate answer please
kotykmax [81]

x = –6

Solution:

Given expression is \sqrt[3]{x-2}+5=3.

Step 1: Isolate the radical by subtracting 5 from both sides of the equation.

\Rightarrow\sqrt[3]{x-2}+5-5=3-5

\Rightarrow\sqrt[3]{x-2}=-2

Step 2: Cube both sides of the equation to remove the cube root.

\Rightarrow(\sqrt[3]{x-2})^3=(-2)^3

Cube and cube root get canceled in left side of the equation.

\Rightarrow\ x-2=-8

Step 3: To solve for x.

Add 2 on both sides of the equation.

\Rightarrow\ x-2+2=-8+2

\Rightarrow\ x=-6

Hence the solution is x = –6.

6 0
3 years ago
Other questions:
  • Which expression is equal to 5^4 ⋅ 5^8?
    7·2 answers
  • What is the area of rhombus ABCD ?
    5·1 answer
  • To solve the equation 2−5(3+4)=2+7,
    14·1 answer
  • 100 POINTS AND BRAINLIEST PLEASE HELP ASAP!!!
    11·2 answers
  • What is 2.235 rounded to the nearest tenth?
    12·2 answers
  • The population of a local species of dragonfly can be found using an infinite geometric series where a1 = 42 and the common rati
    6·2 answers
  • Helga signs up to coach hockey. She
    9·1 answer
  • I need help finding the pattern!!!!
    6·1 answer
  • The AL East baseball division has 5 teams. How many different ways can they finish 1st through 5th?
    8·1 answer
  • Will give brainliest! On a piece of paper, use a protractor and a ruler to construct △ABC with AB=6 cm , m∠A=90° , and m∠B=45° .
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!