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
Nezavi [6.7K]
3 years ago
13

If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?

Mathematics
1 answer:
SVEN [57.7K]3 years ago
7 0
(g-f)(x)=g(x)=f(x)

(g-f)(x)=6x-4+x^2

(g-f)(x)=x^2+6x-4  then:

(g-f)(3)=3^2+6*3-4

(g-f)(3)=9+18-4

(g-f)(x)=23
You might be interested in
Find the measure of angle A.​
Dmitriy789 [7]

Answer:

30 degrees

Step-by-step explanation:

Keep this in mind, ALL triangles must equal 180 degrees.

This is an acute triangle, hence one of the angles is 90 degrees. To find the other two angles, we must solve for x. Since we know the sum of all angles in this triangle must equal 180 degrees, we know for setting up our equation, all the angles should equal 180.

90 + (x+37) + (x+67) = 180\\

Now solve for x by isolating x

2x + 194 = 180\\2x=-14\\x=-7

Our x is -7, now that we know that the numerical value of x is -7, replace x with -7 for angle A.

-7 + 37 = 30

<A is 30 degrees.

<u>Check your work</u>

Plug in -7 where you see x.

90 + (x+37) + (x+67) = 180\\90 + (-7+37) + (-7+67) = 180\\90 + 30 + 60 = 180\\180 = 180

Turns out this was a 30-60-90 triangle. ✅

3 0
2 years ago
What is 4 + 15 × 7 =
il63 [147K]

Answer:

109

Step-by-step explanation:

4 + 15 \times 7  \\  = 4 + 105 \\  = 109

5 0
3 years ago
Read 2 more answers
Match the sequences with the type of sequence (arithmetic or geometric).
Anni [7]
9, 4, -1, -7
Arithmetic because it has a common difference of 5.

4, 10, 16, 22
Arithmetic because it has a common difference of 6.

2, -6, 18, -54
Geometric because it has a common ratio of -3.

4, 4, 4, 4
Both because it has a common difference of 0 and a common ratio of 1.

Hope this helps :)
3 0
3 years ago
Heights of young adult women in the United States are approximately Normal with a mean of 64 inches and standard deviation 2.7 i
sweet-ann [11.9K]

Answer:

The proportion of all young adult women in the United States are taller than 6 feet(72 inches ) is  

   P( X >  72) =0.0015233

Step-by-step explanation:

From the question we are told that

   The mean is  \mu =  64 \ inches

    The standard deviation is  \sigma =  2.7 \  inches

Generally  6 feet  is equivalent to 6 * 12 = 72 inches

Generally the proportion of all young adult women in the United States are taller than 6 feet(72 inches ) is mathematically represented as

       P( X >  72) =  P(\frac{X - \mu }{\sigma }  >  \frac{72  - 64 }{ 2.7 } )

\frac{X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ X )

       P( X >  72) =  P(Z >  2.963 )

From the z-table

  The area under the normal  curve to the right corresponding to 2.963  is  

     P(Z >  2.963 ) = 0.0015233

=>   P( X >  72) =0.0015233

3 0
3 years ago
Help please please - can u
Zarrin [17]

Answer:

ray line line segment

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Can anyone help me with this question
    6·2 answers
  • 6.13x7 approximate value<br>what is the answer​
    6·1 answer
  • 1. (10 pts.) Suppose you have a language with only 3 letters: A, B, and C, which occur with frequencies 0.7, 0.2, and 0.1, respe
    6·1 answer
  • Need answers............
    6·1 answer
  • 6 meters to 60 centimeters
    5·1 answer
  • (3^5 x 3^7) = 3^35 is this true
    7·1 answer
  •  a farmer can cut 1/3 acre of hay every 25 minutes.
    8·2 answers
  • PA = 12 cm; LY = 6 cm​
    9·1 answer
  • Factorise and divide: (3y^8 - 4y^6 + 5y^4) ÷ y^3
    14·1 answer
  • [(8-2) x (3+2) -1] x 3
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!