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
frez [133]
3 years ago
8

Subtract and simplify your answer. 7/18-2/9

Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
4 0

Answer:

1/6.

Step-by-step explanation:

7/18−2/9=?

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(7/18, 2/9) = 18

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(7/18×11)−(2/9×22)=?

Complete the multiplication and the equation becomes

7/18−4/18=?

The two fractions now have like denominators so you can subtract the numerators.

Then:

7−4/18=3/18

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 3 and 18 using

GCF(3,18) = 3

3÷3/18÷3=1/6

Therefore:

7/18−2/9=1/6

bixtya [17]3 years ago
3 0

Answer:

Step-by-step explanation:

7/18-2/9=7/18-4/18=3/18=1/6

You might be interested in
Help??? I Don’t Understand
Andrews [41]
The correct answer is line TX and line QX are perpendicular.
5 0
3 years ago
A Plane is flying at an altitude of 11,000 meters. from the pilot the angle of depression to the airport tower is 22 degrees, ho
Lisa [10]
Check the picture below.

make sure your calculator is in Degree mode.

4 0
3 years ago
22. If triangle DEC equals about triangle BEC, which is true by CPCTC?
Kruka [31]
<span>D. Line AE equals about line ED because if you measure line AE it is the same length as line ED</span>
4 0
3 years ago
Read 2 more answers
If the graph of a quadratic does not intercept the x axis at any point, then it has:
katrin [286]

Answer:

No real roots

Step-by-step explanation:

Roots of a quadratic are the x-intercepts of the graph

3 0
3 years ago
Consider the hypotheses below. Upper H 0​: mu equals 50 Upper H 1​: mu not equals 50 Given that x overbar equals 60​, s equals 1
Neko [114]

Answer:

We conclude that  \mu\neq 50.

Step-by-step explanation:

We are given that x bar = 60​, s = 12​, n = 30​, and alpha = 0.10

Also, Null Hypothesis, H_0 : \mu = 50

Alternate Hypothesis, H_1 : \mu \neq 50

The test statistics we will use here is;

                    T.S. = \frac{Xbar-\mu}{\frac{s}{\sqrt{n} } } ~  t_n_-_1

where, X bar = sample mean = 60

              s = sample standard deviation = 12

              n = sample size = 30

So, Test statistics = \frac{60-50}{\frac{12}{\sqrt{30} } } ~ t_2_9

                             = 4.564

At 10% significance level, t table gives critical value of 1.311 at 29 degree of freedom. Since our test statistics is more than the critical value as 4.564 > 1.311 so we have sufficient evidence to reject null hypothesis as our test statistics will fall in the rejection region.

P-value is given by, P(t_2_9 > 4.564) = less than 0.05% {using t table}

Here also, P-value is less than the significance level as 0.05% < 10% , so we will reject null hypothesis.

Therefore, we conclude that \mu\neq 50.

7 0
3 years ago
Other questions:
  • Evaluate 5x2−9 when x=−2
    14·1 answer
  • Which ordered pairs are on the line ​ 2x−3y=8 ​? Select each correct answer.
    15·1 answer
  • How long does it take to drive 125 miles at 65 mph?
    8·1 answer
  • Write a story problem to represent 3÷5=3/5
    8·1 answer
  • What is the equation for this graph?
    5·1 answer
  • Find the value of the variable y, for which:
    9·1 answer
  • Charlie is the quarterback for the cougars football team. His team had three penalties in a row for -5 yards each. How many yard
    6·1 answer
  • Helppppp which one is it?
    14·1 answer
  • Pls i need help with this
    6·1 answer
  • Cylinder L is similar to Cylinder S The radius of Cylinder L is 5 and its height is 9
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!