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
lozanna [386]
3 years ago
10

F(x) = 2x^2 - 5x - 15 g(x) = -2x - 1 find f(g(x)) ... somebody help me :(

Mathematics
1 answer:
Lapatulllka [165]3 years ago
4 0

Answer:

f(g(x)) = 8x² + 18x - 8

Step-by-step explanation:

Substitute x = g(x) into f(x) , that is

f(g(x))

= f(- 2x - 1)

= 2(- 2x - 1)² - 5(- 2x - 1) - 15

= 2(4x² + 4x + 1) + 10x + 5 - 15

= 8x² + 8x + 2 + 10x - 10

= 8x² + 18x - 8

You might be interested in
A mountain is in the shape of a cone whose height is about 3.7 kilometers and whose base radius is about 3 kilometers. Approxima
Lelu [443]

Answer:

34.54 km^{3}

Step-by-step explanation:

According to the scenario, computation of the given data are as follows,

Height (h) = 3.7 km

Base radius (r) = 3 km

We can calculate the volume of mountain by using following formula,

So, volume of cone = (1/3)πr^{2}h

By putting the value in the formula, we get

= (1/3) π × 3^{2} × 3.7

= 11.1π

= 34.54 km^{3}

Hence, the volume of the mountain is  34.54 km^{3}.

7 0
3 years ago
g Z-Test for Population Means Calculate z-statistic of a population mean. Keith sampled 10 private universities in Colorado and
scoray [572]

Answer: 2.46

Step-by-step explanation:

Formula for x-score is given by :-

Z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

, where \overline{x} = Sample mean , \mu= population mean, \sigma = population standard deviation, n= sample size.

As per given , n=10

\mu= $29,056

\sigma = $3,339

\overline{x} =  $31,650

Then,

z=\dfrac{ 31650-29056}{\dfrac{3339}{\sqrt{10}}}\\\\=\dfrac{2594}{\dfrac{3339}{3.16227766017}}\\\\=\dfrac{2594}{1055.88451073}=2.45670807142\approx 2.46

Hence, the z-score = 2.46

4 0
3 years ago
Please help!!!!
tatyana61 [14]

Answer:

Step-by-step explanation:

From the figure attached,

If the figures shown are congruent (Equal in shape and size), length of all the sides must be equal.

Therefore, sides sides CD and GH must be equal in measures.

Distance between the two points (x_1,y_1) and (x_2,y_2) is given by,

d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Length of the side CD having ends C(-4, 4) and D(0, 5) will be,

CD = \sqrt{(-4-0)^2+(4-5)^2}

CD = \sqrt{(16+1)}

     = \sqrt{17}

Length of GH having ends G(0, -4) and H(4, -5) will be,

GH = \sqrt{(0-4)^2+(-4+5)^2}

      = \sqrt{16+1}

      = \sqrt{17}

Therefore, m(CD) = m(GH)

Similarly, we can prove all corresponding sides of two figures equal in measure.

This shows ABCD ≅ EFGH.

3 0
3 years ago
Deminsions of a swedish flag in inches
Tanya [424]

Answer: 24.75 x 1.5 x 1.5 inches

Step-by-step explanation: Hope this helps!

8 0
3 years ago
Find the value of x when the triangle has 9 and 3
DENIUS [597]

Answer:

H²=h²+b²

H²=9²+3²

H²=81+9

H²=90

H=

\sqrt{90}

5 0
3 years ago
Other questions:
  • PLEASE EXPLAIN BECAUSE A GIRL IS COMPLETELY LOST HERE
    5·2 answers
  • Mr.Manciel is planning an event at a local hotel. The hotel owner told him that the dance floor in the ballroom is about 1,500 s
    6·1 answer
  • When Joseph finished packing his backpack, it had a mass of 5 kilograms. What was the mass of the backpack in grams
    12·1 answer
  • Which is longer 2 feet or 30 inches
    5·2 answers
  • A bag has six balls labeled a,b,c,d.e and f . One ball will be randomly picked, and its letter will be recorded as the outcome.
    14·2 answers
  • Look online for the growth of the trunk of a tree. Estimate how much time does it take for a water oak to grow one inch in diame
    10·1 answer
  • Choose the correcr definition of (n k) from below
    13·1 answer
  • Which function below has the following domain and range?
    8·1 answer
  • M+7.9=39 1/2 I need help with this
    15·1 answer
  • HELP PLS….Volume of cones
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!