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
Sever21 [200]
3 years ago
9

Help me with this questions please

Mathematics
1 answer:
mixas84 [53]3 years ago
4 0
I) f(2)=1.5
ii) f(x)=0 ⇒ x=1.2
iii) k=-1
iv) x=1 ⇒ f(x)=1
You might be interested in
What is the third quartile of the set of data shown below 26, 34, 38, 49, 65, 75, 81
GREYUIT [131]
Population size:7

<span>Lower quartile (xL): 34

Median (xm): 49

Upper quartile (xU): 75</span>
6 0
3 years ago
Read 2 more answers
Select at the tru statements about this graph
ira [324]

Answer: a,e

Step-by-step explanation:

8 0
3 years ago
Please someone help me to prove this. ​
morpeh [17]

Answer:  see proof below

<u>Step-by-step explanation:</u>

Use the Double Angle Identity: sin 2Ф = 2sinФ · cosФ

Use the Sum/Difference Identities:

sin(α + β) = sinα · cosβ + cosα · sinβ

cos(α - β) = cosα · cosβ + sinα · sinβ

Use the Unit circle to evaluate: sin45 = cos45 = √2/2

Use the Double Angle Identities:   sin2Ф = 2sinФ · cosФ

Use the Pythagorean Identity: cos²Ф + sin²Ф = 1

<u />

<u>Proof LHS → RHS</u>

LHS:                                  2sin(45 + 2A) · cos(45 - 2A)

Sum/Difference: 2 (sin45·cos2A + cos45·sin2A) (cos45·cos2A + sin45·sin2A)

Unit Circle:    2[(√2/2)cos2A + (√2/2)sin2A][(√2/2)cos2A +(√2/2)·sin2A)]  

Expand:        2[(1/2)cos²2A  + cos2A·sin2A + (1/2)sin²2A]

Distribute:              cos²2A   + 2cos2A·sin2A + sin²2A  

Pythagorean Identity:    1 + 2cos2A·sin2A

Double Angle:                1 + sin4A

LHS = RHS:  1 + sin4A = 1 + sin4A   \checkmark

6 0
3 years ago
8 blocks can build a house. Jimmy has 165 blocks, how many houses can he build? How many blocks will he have left?​
noname [10]

Answer:

He can build 20 houses. He will have 5 left over.

Step-by-step explanation:

8 x 20 = 160

165 (total blocks) - 160 (highest possibility) = 5 (not enough to build a house, which is why they are left over)

3 0
4 years ago
What scale factor is applied to shape B to make shape A
jasenka [17]
Times all the dimensions on A by 3
6 0
4 years ago
Other questions:
  • First find the estimate of the quotient then find the exact quotient 3 3/7 divide by 1 4/9
    5·1 answer
  • How you express four less than a the square of a number
    10·2 answers
  • Billie solved the equation below by completing the square, but she got the incorrect solution. In which step did Billie first ma
    10·1 answer
  • 9 POWERED C = 243 (INDICES)
    15·1 answer
  • 10 feet
    5·1 answer
  • –2x2 – 12x – 9 = 0 PLS HELP I DO NOT WANT TO FAIL I WILL GIVE BRAINLIEST
    10·1 answer
  • PLZZ I NEED HELP THE TIMER ABOUT TO GO ILL GIVE A BRAINLY THE QUESTION JA WHATS THE TOTAL VOLUME OF THIS FIGURE
    8·1 answer
  • Help please ASAP ill mark brainliest
    7·1 answer
  • Charity is four times as old as her daughter. She is also six years younger than her husband. The sum of their ages ten years to
    6·1 answer
  • Texas has an area of 268,581 square miles and a population of 26,059,203 people. Vermont
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!