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
Yuri [45]
2 years ago
12

Factorise fully 3 x + 15

Mathematics
1 answer:
lubasha [3.4K]2 years ago
5 0

Answer:

3(x+5)

Step-by-step explanation:

You might be interested in
a rocket is 1 mile above thw earth in 30 seconds and 5 miles above the earth in 2.5 minutes what is the rockets rate of change i
Veronika [31]
Rate of Change:

At 1 mile in 30 seconds.
At  5 miles in 2.5 minutes.  2.5 minutes = 2.5*60 = 150 seconds.

Rate of change =   Change in height / Change in time

                            =   (h₂-h₁)/(t₂-t₁)

                            =   (5 -1) /(150 -30) = 4/120 = (1/30) = 0.0333 miles per second.

                             = (1/30) miles per second or 0.0333 miles per second.


To have the answer in miles per minute.

         (1/30) miles per second = (1/30) miles/second.

60 seconds = 1minute
1 second = (1/60) minute.

(1/30) miles/second  =  (1/30) miles/(1/60)minute
                                   =   (1/30) *60 miles / minute
                                   =    2 miles per minute.
8 0
3 years ago
Consider the graph of the expotential function y= 3(2)^x
victus00 [196]

Answer:

<h2>y-intercept = 3</h2><h2>x-intercept - not exist</h2><h2>the graph is increasing</h2>

Step-by-step explanation:

The exponential function:

f(x)=b(a)^x

has y-intercept for x = 0

hasn't x-intercept

if a > 1, then is increasing

if 0 < a < 1, then is decreasing

We have

y=3(2)^x

a = 2 >1 - increasing

for x = 0:

y=3(2)^0=3(1)=3

8 0
3 years ago
A student needed to prepare 500mL of 1X TAE buffer to run a QC gel. The stock solution in the lab is 5X TAE. What volumes of sto
Xelga [282]

Answer:

you need 100ml of 5X TAE and 400ml of water.

Step-by-step explanation:

You need to use a rule of three:

C_1V_1=C_2V_2

where:

\left \{ {{C_1= 5X} \atop {C_2=1X}} \right.

and

\left \{ {{V_1 = V_{TAE}} \atop {V_2=500ml}} \right.

Therefore:

V_{TAE} = \frac{V_2*C_2}{C_1}

V_{TAE} = 100ml

Then just rest the TAE volume to the final Volume and you get the amount of water that you need to reduce the concentration.

3 0
2 years ago
Read 2 more answers
No clue what I'm doing help
Umnica [9.8K]
-32=y+4 is the answer
6 0
3 years ago
How many sides does a dodecahedron have?
777dan777 [17]

Answer:

twelve faces

Step-by-step explanation:

12 sides

6 0
2 years ago
Other questions:
  • A police car's siren operates at a frequency of 2,000 Hz. What frequency would a stationary listener observe if the police car i
    6·1 answer
  • When lines coincide how many solutions does each system have?
    13·2 answers
  • An electronic product contains 40 integrated circuits. the probability that any integrated circuit is defective is 0.01, and the
    6·1 answer
  • Help please show all work
    12·2 answers
  • Which of the following equations matches the function shown above?
    5·1 answer
  • Can you guys help me with these 2 questions??? I will mark you guys the brainiest whoever answer correctly
    5·1 answer
  • Convert the following binary number into decimal system :1111111
    14·1 answer
  • Solve the equation. Show all steps of your work and give
    13·2 answers
  • A cylinder has a surface area of 234π meters with a radius of 9 m. What is the volume of the cylinder? Leave your answer as π
    8·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!