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]
2 years ago
14

-1.52=3.8x solve for x

Mathematics
1 answer:
seraphim [82]2 years ago
7 0

Answer:

x = -0.4

Step-by-step explanation:

You might be interested in
Identify the axis of symmetry of the given quadratic<br> y= -3x^2 - 12
Sergeeva-Olga [200]

Answer:

\frac{d}{dy}(-3x^{2} -12) =  -6x

0 = -6x

0 = x

-3(0)^{2} -12 = -12

(0,-12)

Step-by-step explanation:

6 0
3 years ago
Mopeds (small motorcycles with an engine capacity below 50 cm3) are very popular in Europe because of their mobility, ease of op
Mashcka [7]

Answer:

a) P(X<50)=0.9827

b) P(X>47)=0.4321

c) P(-1.5<z<1.5)=0.8664

Step-by-step explanation:

We will calculate the probability based on a random sample of one moped out of the population, normally distributed with mean 46.7 and standard deviation 1.75.

a) This means we have to calculate P(x<50).

We will calculate the z-score and then calculate the probability accordign to the standard normal distribution:

z=\dfrac{X-\mu}{\sigma}=\dfrac{50-46.7}{1.75}=\dfrac{3.7}{1.75}=2.114\\\\\\P(X

b) We have to calculatee P(x>47).

We will calculate the z-score and then calculate the probability accordign to the standard normal distribution:

z=\dfrac{X-\mu}{\sigma}=\dfrac{47-46.7}{1.75}=\dfrac{0.3}{1.75}=0.171\\\\\\P(X>47)=P(z>0.171)=0.4321

c) If the value differs 1.5 standard deviations from the mean value, we have a z-score of z=1.5

z=\dfrac{(\mu+1.5\sigma)-\mu}{\sigma}=\dfrac{1.5\sigma}{\sigma}=1.5

So the probability that maximum speed differs from the mean value by at most 1.5 standard deviations is P(-1.5<z<1.5):

P(-1.5

3 0
3 years ago
Parabola passes through the points (0,5), (1,4), and (2,5). What function does the graph represent?
AfilCa [17]

Answer:

x^2 - 2x + 5 = 0.

Step-by-step explanation:

The (0, 5) is the point where the parabola passes through the y axis (where x = 0), so we can write the equation as

y = ax^2 + bx + 5   where a and b are constants to be found.

Also, since (1, 4) and (2, 5) are points on the curve, substituting, we have the system:

a(1)^2 + 1b + 5 = 4

a(2)^2 + 2b + 5 = 5

Simplify these 2 equations:

a  + b  =  -1  .................(1)

4a + 2b = 0..................(2)

Multiply the first equation by -2:

-2a - 2b = 2 .................(3)

Add (2) + (3):

2a = 2

a = 1.

Substitute a = 1 into (2):-

4*1 + 2b = 0

2b = -4

b = -2.

7 0
3 years ago
99 is 72% of what number?
icang [17]
I’m not really sure but I think the answer is 137.50.
8 0
3 years ago
Read 2 more answers
Suppose SAT scores among college students are normally distributed with a mean of 500 and a standard deviation of 100. If a stud
bagirrra123 [75]

Answer:

700-500/500=2

7 0
3 years ago
Other questions:
  • On Thursday after work, the number of cars in a parking lot decreased at a steady rate of 13 cars every 2 minutes. Which rationa
    9·2 answers
  • Convert the repeating decimal 0.2323232323...... into a fraction.
    13·1 answer
  • There are 150 marigold plants in a back yard. Each month, the number of marigold plants decreases by 15%. There are 125 sunflowe
    8·1 answer
  • A used bookstore will trade 2 of its books for 3 of yours if Val brings in 18 books to trade how many books can she get from the
    12·1 answer
  • HELP PLEASE!!<br><br> k - ( - 5/6) = - 1/6
    9·1 answer
  • A car is driving down a road at a normal speed of 50 miles per hour. It enters a hilly area of gradual incline and decline, wher
    6·1 answer
  • What value of n makes this equation true?
    5·2 answers
  • Which polynomial is in standard form?
    12·1 answer
  • What does m represent in the equation y= mx+b? Iready
    6·1 answer
  • Find the values of x and y
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!