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
Ilya [14]
3 years ago
14

What is the answer to 2x^2 - 3x - 15 = 5

Mathematics
1 answer:
Alja [10]3 years ago
6 0
2x²-3x-15=5
2x²-3x-15-5=0
2x²-3x-20=0
½(2x+5)(2x-8)

-2x=-5
x=-5/2


2x-8=0
2x=8
x=4




---------------------------


You might be interested in
What is 1.8-9.0 = help me plz
Andrews [41]
The answer is -7.2 and -36/5 hope this helps
3 0
3 years ago
Read 2 more answers
Make an approximate conversion from English to metric. <br><br> 9 ft to meters
Anna71 [15]

Answer:

2.7 meters

Step-by-step explanation:

I hope this helped

4 0
2 years ago
A laundry basket contains 8 white t-shirts and 6 black t-shirts. What is the probability of randomly picking a black t-shirt fro
MissTica

Answer:

30/182 = 15/91.

Step-by-step explanation:

<u>PROBABILITY:</u> the likelihood of an event.

There are a total of 14 shirts in the basket.

Of the 14, 8 (8/14) of them are white, and 6 (6/14) of them are black.

The probability of picking a black shirt is 6 in 14, or 6/14.

The probability of picking a white shirt is 8 in 14, or 8/14.

<u>WITHOUT REPLACING:</u> This means that you take one without putting it back. (There will be one less).

6/14 × 5/13 = 30/182.

30/182 = 15/91.

8 0
3 years ago
‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️PLEASE PLEASE HELP
gogolik [260]
"Linear function" means the highest degree of any term is 1.

Equation 1: degree is 2
Equation 2: degree is 2
Equation 3: degree is 1 . . . . this is your linear function
Equation 4: degree is 4
5 0
3 years ago
Christopher works at the power plant for the southwest part of his home state. For peak operational performance, his department
Licemer1 [7]

Answer:

B) To maintain peak performance for every 50 generators, there are 10 inspectors.

Step-by-step explanation:

For peak operational:

3 electricians for each generator.  ⇒  1 Generator : 3 Electricians

4 inspectors for every 60 electricians. ⇒  60 Electricians : 4 Inspectors

Now, the number of generators the state has now = 50

Let us assume the number of  inspectors  required by the power plant  = m

Now, from the given ratios:

For, 3 electrician there  is 1 generator

⇒ For, 3 x 20 Electrician  there is 1  x 20 Generators.

or, for 60 Electrician there are 20 Generators.   (1)

Also, for 60 Electrician there are 4 inspectors.    (2)

⇒From (1) and (2), we get:

For every 20 generators, there are 4 inspectors.

And, from what we have assumed  For every 50 generators, there are m inspectors.

So, by the RATIO OF PROPORTION:

\frac{20}{4}  = \frac{50}{m}\\ \implies  m = 50 \times\frac{4}{20}  = 10

or, m = 10

Hence, to maintain peak performance for every 50 generators, there are 10 inspectors.

3 0
3 years ago
Other questions:
  • Bonus Point: Find the area of the irregular figure below. Leave your answer in simplest radical form.
    10·1 answer
  • A square has side lengths that measure 8 inches. A rectangle has a length of ten inches and a width of 5 inches. How many more s
    10·1 answer
  • Rectangle A measures 8 inches by 4 inches. Rectangle B is a scaled copy of Rectangle A. Select all of the measurement pairs that
    15·1 answer
  • What is the best way to display data if there is a wide range and we want to see individual data?
    7·2 answers
  • In 1929 Edwin Hubble investigated the claim that distance (explanatory) and radial velocity (response) of extragalactic nebulae
    12·1 answer
  • 5 to the fourth power times (5 to the negative 3rd power) and 2
    10·1 answer
  • You deposit $800 in an account. The account earns $360 simple interest in 3 years. What is the annual interest rate?
    6·1 answer
  • 6 hours 4 min 30 sec, 2 hours 43 min.​
    15·2 answers
  • PLS HELPPPPP !!!! Figure ABCD is transformed to figure A'B'C'D':
    10·1 answer
  • What is the y-intercept<br> of this line?<br> X-10-5 0 5 10 15<br> yl-6-5-4-3|–2|–1
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!