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
prohojiy [21]
3 years ago
13

Read doccument attached

Mathematics
1 answer:
Klio2033 [76]3 years ago
3 0

Answer:

48.6 km/hr

Step-by-step explanation:

(135/10)×(18/5)

48.6 km/hr

You might be interested in
HELLPP PWEASEEEE :( im confused
Montano1993 [528]

Answer:

18 seconds

Step-by-step explanation:

according to the question

-16t²+5184=0 (0 because when the height is 0 the ball will hit the ground)

-16t²=-5184

t²=-5184/-16

t²=324

t=√324

t=18

8 0
3 years ago
Pls answer this last question in full method​
Vaselesa [24]

Answer:

if the sum of two angles is 90° they are said to be complementary

If one angle is x

the other should be (90 - x)°

so the complementary angle of x is (90 - x)

5 0
3 years ago
The graph of a quadratic function having the form f(x) = ax? + bx + c passes
insens350 [35]

Answer:

  f(-3) = -20

Step-by-step explanation:

We observe that the given x-values are 3 units apart, and that the x-value we're concerned with is also 3 units from the first of those given. So, a simple way to work this is to consider the sequence for x = 6, 3, 0, -3. The corresponding sequence of f(x) values is ...

  34, 10, -8, ?

The first differences of these numbers are ...

  10 -34 = -24

  -8 -10 = -18

And the second difference is ...

  -18 -(-24) = 6

For a quadratic function, second differences are constant. This means the next first-difference will be ...

  ? -(-8) = -18 +6

  ? = -12 -8 = -20

The value of the function at x=-3 is -20.

_____

The attachment shows using a graphing calculator to do a quadratic regression on the given points. The graph can then be used to find the point of interest. There are algebraic ways to do this, too, but they are somewhat more complicated than the 5 addition/subtraction operations we needed to find the solution. (Had the required x-value been different, we might have chosen a different approach.)

5 0
3 years ago
Helllllllllllpppppppppppppppppp
leva [86]

Answer: Negative 1 and one-fifth

Step-by-step explanation:

Add the two numbers lol

Hope this help

I'm a also a K12 kid too btw.

3 0
3 years ago
Select all of the following that are quadratic equations.
kifflom [539]
A quadratic equation is one in which the highest exponent of x is 2.
7x^2+14x=0 is quadratic; the highest exponent is 2.
x³-3x²+1=0 is NOT quadratic.  The highest exponent of x is 3, not 2.
5x-7=0 is NOT quadratic.  The highest exponent of x is 1, not 2.
x²+3x-5=0 is quadratic; the highest exponent of x is 2.
x-5=9x+7 is NOT quadratic.  The highest exponent of x is 1, not 2.
x²-x=3x+7 is quadratic; the highest exponent of x is 2.
5 0
3 years ago
Other questions:
  • Select one: <br> A. Supplementary<br> B. Vertical<br> C. Complementary<br> D. Acute
    6·1 answer
  • What is the volume of this question?
    7·1 answer
  • On her science test, Shawn correctly answered 66 out of 78 questions. What percent of the questions did she answer correctly?
    5·2 answers
  • Which lists all the integer solutions of the equation |x| = 4?
    14·2 answers
  • What is the Slope of this line?
    6·1 answer
  • What is the degree measure of x? A) 37° B) 50° C) 62° D) 74°
    7·1 answer
  • What is the mÐJAZ? plz help
    9·1 answer
  • Base: 5 ft<br> area: 5 5/6 <br> what's the height( pls hurry&lt;3)
    14·1 answer
  • Amy and Darren each solved the following system of equations using a different method
    7·1 answer
  • Consider the following Basic Box and Whisker Plot, what is the interquartile range of the data shown on the graph
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!