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
Nookie1986 [14]
3 years ago
8

I need help ASAP. show work. So I can learn :)

Mathematics
1 answer:
damaskus [11]3 years ago
3 0

it would be a because nothing else makes sense

You might be interested in
When purchased, the height of a Japanese maple sapling is 14 inches. The tree is expected to grow 2.5 inches each month. Which f
victus00 [196]

Answer:

Step-by-step explanation:

The initial height of a Japanese maple sapling is 14 inches.

The tree is expected to grow 2.5 inches each month. This increase in height is linear, thus it is in arithmetic progression.

The expression for arithmetic progression is

Tn = a + (n-1)d

Where a = the first term of the series

d = common difference

Tn is the nth term of the series

n = the number of terms.

From the information given

a = 14 inches because it is the initial height of the tree

d = 2.5 because it is the difference in height between 2 consecutive months

n = m( number of months)

Tn = f(m)

function models the relationship between the height of the tree f(m) and the number of m months of growth will be

f(m) = 14 + 2.5(m-1)

6 0
3 years ago
A bullet is fired straight up from a gun with initial velocity 1120 feet per second at an initial height of 8 feet. Use the form
Dafna1 [17]

Answer:

70 seconds

Step-by-step explanation:

Given that;

The initial velocity v_o of the bullet fired = 1120 ft/s

Initial height h = 8 feet

The expression to determine how many seconds it takes the bullet to hit the ground is:

h = -16t^2 +v_ot + 8

Thus;

Replacing the value of v_o =  1120 and h = 0 (i.e. when h =0) in the above expression; we have:

0= -16t^2 +(1120)t + 8

=  -16t^2 +(1120)t + (8-0)

= -16t² + 1120t + 8

mulitiply through by (-)

= 16t² -1120t - 8

Divide through by 8

= 2t² -  140t - 1

The above expression forms a quadratic equation.

where;

a = 2

b = -140

c = - 1

So, by using the quadratic formula \dfrac{-b \pm \sqrt{b^2-4ac}}{2a}, we have:

= \dfrac{-(-140) \pm \sqrt{(-140)^2-4(2)(-1)}}{2(2)}

= \dfrac{140 \pm \sqrt{19600-(-8)}}{4}

= \dfrac{140 \pm \sqrt{19608}}{4}

= \dfrac{140 \pm 140}{4}

=\dfrac{140+ 140}{4} \ \ \ OR \ \ \  \dfrac{140-140}{4}

=\dfrac{280}{4} \ \ \ OR \ \ \  0

= 70

Thus, the time (in seconds) it took the bullet to it the ground = 70 seconds

6 0
3 years ago
Which point is on the line that passes through (0,6) and is parallel to the given line? plzz helppp!
Grace [21]

Points on given line = (-12,-2) and (0,-4) because you can see them on the graph.  Then draw a parallel line thru (0,6)

To get from (0,-4) to (0,6) your x stays constant and your y coordinate increased by 10.  So your new point will do the same in relation to (-12,-2)  the x will stay constant at -12 and your y will increase by 10 to +8.  

So the answer is A (-12,8)

You can check this because parallel lines have the same slope so

y2-y1/x2-x1 should be equal for both lines.

Line 1:  -4 - (-2) / 0 - (-12) = -2/12 = -1/6

Line 2:  6 - 8 / 0 - (-12) = -2/12 = -1/6


5 0
3 years ago
Can y’all help with these to answer?
Soloha48 [4]

Answer:

1) 9:14

2)4:1

Step-by-step explanation:

You have to have all of the teachers compared to all of the adults (teachers included)

You have to simplify 12:3 and you get 4:1.

3 0
3 years ago
Read 2 more answers
What is 160% of 5 rounded to the nearest hundredth
faltersainse [42]

Answer:

8

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • an equation is written to represent the relationship between the temperature in Alaska during a snow storm,y, as it relate to th
    9·1 answer
  • 5 times 60 equals 5 times how many tens
    5·1 answer
  • Which tasks are performed by individuals in the Science and Math pathway? Select all that apply.
    8·2 answers
  • The graph below represents the price of sending text messages using the services of a phone company. What is the constant of pro
    14·1 answer
  • What is the sale price on a painting that has a regular price of $1,700 and is on sale for 25% off the regular price ?
    9·1 answer
  • Multiply.<br> (5v+6w-7)(-3)<br> Simplify your answer.
    9·1 answer
  • Pls help Will give brainiest
    13·1 answer
  • Daniel bought a bag of marbles at the school garage sale it contains five red marbles four yellow marbles five Green marbles and
    12·1 answer
  • Adam went on a shopping trip to Somerville. He purchased a set of dishes originally priced at
    15·1 answer
  • Please help!!! What is the slope of a line perpendicular to the following line:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!