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
goldenfox [79]
4 years ago
14

Solve the equation 6w2 – 7w – 20 = 0.

Mathematics
1 answer:
Irina-Kira [14]4 years ago
4 0

Answer:

\large\boxed{B.\ w=-\dfrac{4}{3},\ w=\dfrac{5}{2}}

Step-by-step explanation:

6w^2-7w-20=0\\\\6w^2-15w+8w-20=0\\\\3w(2w-5)+4(2w-5)=0\\\\(2w-5)(3w+4)=0\iff2w-5=0\ \vee\ 3w+4=0\\\\2w-5=0\qquad\text{add 5 to both sides}\\2w=5\qquad\text{divide both sides by 2}\\\boxed{w=\dfrac{5}{2}}\\\\3w+4=0\qquad\text{subtract 4 from both sides}\\3w=-4\qquad\text{divide both sides by 3}\\\boxed{w=-\dfrac{4}{3}}

You might be interested in
Andre set up a lemonade stand last weekend. It cost him $0.15 to make each cup of lemonade, and he sold each cup for $0.35.
seraphim [82]

Answer:

18 cups of lemonade

Step-by-step explanation:

so if it cost him $0.15 to make each cup of lemonade and he sold a cup for $0.35 then he sold 18 cups

4 0
2 years ago
Help me pleeeeeeeeeeeeeeeease
pychu [463]

Answer:

n ≥ 29

She needs to do more than 29 pushups on the sixth day.

Step-by-step explanation:

First, we need to use the formula for finding the average. We currently have numbers for the first 5 days.

(22+26+21+25+27+n)/6 = 25

Multiply both sides by 6.

25*6 = 150

150-27-25-21-26-22=x

x=29

Since it is an inequality, Sarah needs to do more than 29 pushups on the sixth day.

6 0
2 years ago
Identify the range of the function shown in the graph.<br>​
Ad libitum [116K]

Answer:

B

Step-by-step explanation:

The range is all values of y. Y goes from -1 to 1. Please mark brainliest.

3 0
3 years ago
Read 2 more answers
Please help I don't know this!
anygoal [31]
I think the answer is the range increases by 8
8 0
3 years ago
If 4 units equal 12 inches, what is the value of 1 unit
ser-zykov [4K]

Answer:

1 unit = 3 inches

Step-by-step explanation:

We are given that 4 units = 12 inches.

This can be rewritten as 4x = 12

Then to solve for x, you divide 4 on both sides

so x = 12/4

x = 3

Let me know if you have any questions

3 0
3 years ago
Read 2 more answers
Other questions:
  • What value of x is in the solution set of 2x – 3 &gt; 11 – 5x?
    15·1 answer
  • X +10=14 &lt;--how does one solve this?​
    8·1 answer
  • Find the square root of the fraction 64 OVER 100
    13·1 answer
  • Which Roman numeral is equivalent to the number below?
    8·2 answers
  • Margo borrows $800 agreeing to pay it back with 5% annual interest after 16 months. How much interest will she pay?
    8·2 answers
  • 4 quarts 2 cups − 1 quart 3 cups = ?
    13·1 answer
  • Cordelle charges $2 for each cupcake at a bake sale. He sold 4 cupcakes on Monday, 6 cupcakes on Tuesday, 2 cupcakes on Wednesda
    11·2 answers
  • How do you turn that problem in to a system of equations
    7·1 answer
  • 11²-5+4(7)/(4)(3)<br><br> Help!
    15·1 answer
  • Find the solution of the system of equations.<br> 2x+5y=-11<br> -8x-5y= -1
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!