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
masha68 [24]
3 years ago
13

5x^2-44x+130=-30+16x

Mathematics
2 answers:
sweet [91]3 years ago
7 0

Answer:

if its answer for x its

Step-by-step explanation:

=4

=8

olganol [36]3 years ago
4 0
5x²-44x + 130 = -30 + 16x

5x²-44x + 130 + 30 - 16x = 0

5x² -60x + 160 = 0

devide by 5

x² - 12x + 32 = 0

(x-4) (x-8) = 0

x-4 = 0 then x = 4

x-8 = 0 then x = 8


so x=4 and x=8
You might be interested in
What is the slope of<br> the line parallel to 3x +<br> y = 12?
Doss [256]

Answer:

slope = -3

Step-by-step explanation:

1) Rearrange eqn into slope intercept form

slope intercept form: y = mx + b

where...

m = the slope

b = the y-intercept (where the line crosses the y axis)

3x + y = 12

y = -3x+12

2) Know parallel rule. A line that runs parallel has the same slope but a different y-intercept

So the slope is: -3

8 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through the points (9, -1) and (4, -11)?
mixas84 [53]

Answer:

2

Step-by-step explanation:

We have two points so we can find the slope

m = ( y2-y1)/(x2-x1)

    = ( -11 - -1)/( 4 -9)

    = (-11+1)/( 4-9)

    -10/ -5

   = 2

4 0
2 years ago
A rocket is launched straight up from the ground with an initial velocity of 192 feet per second. The equation for the height of
Ivenika [448]

The equation for the height of the rocket at time t given

h= -16t^2+192t

We have to find the time t, when the rocket reaches 560 feet.

That means we have to find t when h = 560 ft. we will place 560 in the place of h to find t now.

h= -16t^2+192t

560 = -16t^2+192t

In the right side, we can check -16 is the common factor. So we will take out -16 from the rigbht side.

560 = -16(t^2 - 12t)

To get rid of -16 from the right side and move it to left side, we will divide both sides by -16.

560/-16 = -16(t^2-12t)/-16

-35 = t^2 -12t

Now we will move -35 to the righ side by adding 35 to both sides.

-35+35 = t^2-12t+35

0 = t^2 -12t+35

t^2-12t+35 = 0

We will factorize thee left side to find the values of t now. We need to find a pair of factors of 35 that by adding them we will get -12.

The pair of factors of 35 are -5 and -7 and by adding -5-7 we will get -12.

t^2-12t+35 =0

(t-5)(t-7) =0

So by using zero product property we will get

t-5 =0

t-5+5 = 0+5

t=5

Also t-7 =0

t-7+7 = 0+7

t=7

So we have got the rocket reaches at 560ft when t = 5 seconds and also when t = 7 seconds.

Now part b.

When the rocket completes its trajectory and hits the ground then the height or h = 0. So we will place h = 0 there in the equation.

h= -16t^2+192t

0= -16t^2 + 192 t

0 = -16(t^2-12t)

-16(t^2-12t) = 0

We will move -16 to the other side by dividing it to both sides.

-16(t^2-12t)/-16 = 0/-16

t^2-12t = 0

We will take out the common factor t from the left side. By taking out t we will get,

t(t-12) = 0

We will use zero product property now. By using that we will get,

t = 0

ans also t-12 = 0

t-12+12 = 0+12

t = 12

When the rocket completes its trajectory and hits the ground the time t can not be 0. When t =0, the rocket starts the trajectory.

So when the rocket completes its trajectory and hits the ground ,

then t = 12seconds.

So we have got the required answers.

6 0
3 years ago
If a ray divides an angle into two complementary angles, then the original angle is a right angle
lilavasa [31]
No as complementary angles add up to whisk 180 degrees, however supplementary angle would be true for this question
5 0
3 years ago
Read 2 more answers
Which situation represents a proportional relationship?​
ozzi

Answer:

c.... i am just smart

5 0
3 years ago
Other questions:
  • The answer to all of these word problem
    11·1 answer
  • Darrel divided 575 by 14 by using partial quotients. What is quotient and explain answer using numbers and words
    10·1 answer
  • 3x+8=14,X=2 write in inverse statement?<br>​
    13·1 answer
  • Fiona has 6 garden boxes. She wants to plant 3 vegetable seeds and 3 flowers seeds in each garden box. How many seeds does Fiona
    15·1 answer
  • Please help i need it done asap<br> Thank you have a great day
    5·1 answer
  • ryan wants to buy a sweatshirt for $42.99. The sale tax rate in his city is 7 1/2% what is the total cost for the sweatshirt? ro
    10·1 answer
  • A 3-gallon bottle of fabric softener costs $33.24. What is the price per quart?
    5·1 answer
  • What is 70% of LTV of $4,424,000.00
    13·2 answers
  • Write a piecewise-defined function that represents the graph?
    7·1 answer
  • If 2/3 X – 1= 4, then x =
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!