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
Tom [10]
4 years ago
5

Can someone help me and tell me the steps plzz​

Mathematics
1 answer:
adell [148]4 years ago
5 0

Answer:

A

Step-by-step explanation:

f(x) = 7x² - 15x + 2

A) f(1) = 7*1² - 15*1 +2 = - 6

f(1.5) = 7*(1.5)² -15*1.5 + 2 = - 4.75

B) f(2.2) = 7*(2.2)²-15*(2.2)+2 = 2.28

C) f(1) = 7*1² - 15*1 +2 = - 6

f(1) = 7*2² - 15*2 +2 = 0

D) not for all real numbers because we already have

f(2.2) = 7*(2.2)²-15*(2.2)+2 = 2.28 that is positive.

You might be interested in
29. Determine the value of x.<br> abc<br> X + 42°<br> 147°<br> 2x
suter [353]

Answer:

x=35

Step-by-step explanation:

180-147=33 (angles in a straight line)

33+3x+42=180 (angles in a triangle)

3x+42=147

147-42=105

105/3=35

5 0
2 years ago
Can someone pls help me asap thx!
Masteriza [31]
I think you just do 32-18=14
7 0
4 years ago
On a coordinate plane, parallelogram H I J K is shown. Point H is at (negative 2, 2), point I is at (4, 3), point J is at (4, ne
nasty-shy [4]

HIJK is a parallelogram because the midpoint of both diagonals is

(1 , 0), which means the diagonals bisect each other

Step-by-step explanation:

If (x , y) is the mid-point of a segment whose end points are (x_{1},y_{1})  and  (x_{2},y_{2})  then,

  • x=\frac{x_{1}+x_{2}}{2}
  • y=\frac{y_{1}+y_{2}}{2}

In a parallelogram, its diagonals intersect each other at their mid-points

that means its diagonals bisect each other

∵ HIJK is a quadrilateral

∵ HJ and IK are its diagonals

∵ H = (-2 , 2)

∵ J = (4 , -2)

- Find the mid point of HJ  

∵ M_{HJ}=(\frac{-2+4}{2},\frac{2+-2}{2})

∴ M_{HJ}=(\frac{2}{2},\frac{0}{2})

∴ M_{HJ}=(1,0)

∴ The mid-point of HJ is (1 , 0)

∵ I = (4 , 3)

∵ K = (-2 , -3)

- Find the mid point of IK  

∵ M_{IK}=(\frac{4+-2}{2},\frac{3+-3}{2})

∴ M_{IK}=(\frac{2}{2},\frac{0}{2})

∴ M_{IK}=(1,0)

∴ The mid-point of IK is (1 , 0)

∵ The mid-points of HJ and IK are equal

∴ HJ and IK bisects each other

∴ HIJK is a parallelogram because its diagonals bisect each other

HIJK is a parallelogram because the midpoint of both diagonals is

(1 , 0), which means the diagonals bisect each other

Learn more:

You can learn more about parallelogram in brainly.com/question/6779145

#LearnwithBrainly

6 0
3 years ago
Read 2 more answers
a bag contains equal amounts of 10 different colored marbles. What is the chance of someone pulling out a blue marble putting it
worty [1.4K]

Answer: 1/20?

Step-by-step explanation: if they’re all different colors and it’s 10 then pulling out blue has a 1/10 chance so pulling it again would be 1/20

3 0
3 years ago
A jet flies 510 miles in 2 hours.
Tasya [4]
The rate is 255 MPH.


The jet can fly 3,825 miles in 15 hours.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is another name for Angle 1? Line segments J L and L M combine to form an angle. Line segment L K comes out of the angle to
    5·2 answers
  • Tatenda takes ttt seconds to mow a square meter of lawn and Ciara takes ccc seconds to mow a square meter of lawn. Tatenda mows
    15·1 answer
  • Stephanie go shopping on Sunday she has $60 after buying 20 chocolate she has $10 left how much did each chocolate cost
    7·1 answer
  • Help fast this is due tomorrow
    8·2 answers
  • What is the original list price if the discount is $25 and the discount rate is 12%?
    7·2 answers
  • (x+3)(x−3)<br> In polynomial standard form
    14·1 answer
  • Factor 1/8 out of 1/8x−49/8.
    14·1 answer
  • How many different passwords can be made if it is three letters, followed by two digits, followed by a letter? (Repetition is al
    13·1 answer
  • The area of the rectangle is 68 square units. Notice that you can divide the rectangle into two squares with equal area. How can
    13·1 answer
  • PLEASE ANSWER ASAP WILL MARK BRAINLIEST
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!