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
jasenka [17]
3 years ago
9

Combine the like terms to create an equivalent expression: \large{-k-(-8k)}−k−(−8k)minus, k, minus, (, minus, 8, k, )

Mathematics
1 answer:
PIT_PIT [208]3 years ago
3 0

Answer:

7k

Step-by-step explanation:

The given expression is

-k-(-8k)

We need to find the simplified form of the given expression.

Like terms: The terms which have same variables of same degree and known as like terms. For example: 2x and 4x are like terms.

The given expression can be rewritten as

-k+8k

On combining like terms we get

(-1+8)k

7k

Therefore, the equivalent expression of the given expression is 7k.

You might be interested in
Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the pre
artcher [175]

Answer: The proportion of new car buyers that trade in their old car has statistically significantly decreased.

Step-by-step explanation:

Since we have given that

p = 48% = 0.48

n = 115

x = 46

So, \hat{p}=\dfrac{46}{115}=0.40

So, hypothesis would be

H_0:\ p=\hat{p}\\\\H_a:p

So, test value would be

z=\dfrac{p-\hat{p}}{\sqrt{\dfrac{p(1-p)}{n}}}\\\z=\dfrac{0.48-0.40}{\sqrt{\dfrac{0.48\times 0.52}{115}}}\\\\z=\dfrac{0.08}{0.0466}\\\\z=1.72

At 10% level of significance, critical value would be

z= 1.28

Since 1.28 < 1.72

So, we will reject the null hypothesis.

Hence, the proportion of new car buyers that trade in their old car has statistically significantly decreased.

6 0
3 years ago
About how many inches does a 30 inch diameter tire roll in one turn?
ki77a [65]

Answer:

10 inches

Step-by-step explanation:

4 0
3 years ago
Zach bought 200 shares of Goshen stock 20 years ago for $21.35 per share. He sold all 200
julia-pushkina [17]

Answer:

4,330

Step-by-step explanation:

Multiply 21.35 times 200 and you get 4,270, then multiply 200 times 43 and you will get 8,600. then subtract and you will get 4,330

8 0
3 years ago
Apply the distributive property to create an equivalent expression. 6(5x - 3) =
Allushta [10]

Answer:

30x-18

Step-by-step explanation:

(6)(5x+−3)

=(6)(5x)+(6)(−3)

=30x-18

5 0
2 years ago
What is the interquartile range if the data set? 5,911,13,16,16,19,21
max2010maxim [7]

Answer:

Step-by-step explanation:

5,9,11,(13,16),16,19,21

the mean(middle number) = (13 + 16) / 2 = 29/2 = 14.5

Q1 = (9 + 11) / 2 = 20/2 = 10

Q3 = (16 + 19) / 2 = 35/2 = 17.5

interquartile range (IQR) = Q3 - Q1 = 17.5 - 10 = 7.5 <==

7 0
2 years ago
Other questions:
  • Add polynomials: (3-4x + 8x^2) + (-6 + 2x - 5x^2)
    9·1 answer
  • Find the value of plz fast sin(100×π−π÷4)
    14·1 answer
  • PLEASE HELP ASAP!!!!!!!!!!!!
    13·1 answer
  • PLEASE!!!I NEED HELP!!!!!!!
    14·1 answer
  • Which statements are true about the shapes? Select three options.
    8·2 answers
  • Which complex number will be plotted below the real axis and to the right of the imaginary axis?
    5·1 answer
  • A pool has 29,000,000 mL how many liters of water can the pool hold
    6·2 answers
  • Triangle ABC is a right triangle with lengths shown.
    8·1 answer
  • G.O and his neighbors clear a rectangle area 8 1/2 feet by 6 1/4 feet to plant shrubs. Now they have to decide how many shrubs t
    9·2 answers
  • In a class of 23,there are 13 girls and 10 pupils who play chess .The number of girls play chess is 4.Find how many boys do not
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!