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
amid [387]
3 years ago
6

What is the value of k?

Mathematics
1 answer:
STatiana [176]3 years ago
4 0

Answer:k=42


Step-by-step explanation:

(5k−3)(9+k)

=(5k+−3)(9+k)

=(5k)(9)+(5k)(k)+(−3)(9)+(−3)(k)

=45k+5k2−27−3k

=5z2+42z−27

=42k



You might be interested in
Interpret the given expression. Expression: (5x-2)^3 / x+11
pantera1 [17]

Answer:

125x3−150x2+60x−8/x+11



7 0
3 years ago
Read 2 more answers
Your friend has prepared his monthly budget and asks you if he has overlooked anything in this planning. Which of the following
Zarrin [17]
D. the question implies the fact the furnace is in bad shape. It would cause readers to infer it needs replaced. So he needs to replace the furnace. hope im right
7 0
3 years ago
Read 2 more answers
Brady has collected the following data. 11, 15, 15, h, 11. If the range of Brady's data is 9, what is the value of h?
tankabanditka [31]
To find the value of h, you will order the data and then determine if there is enough information to find the missing value knowing that from the beginning of the data to the end is a range of 9.

11, 11, 15, 15, ____ (20)

or

(6)_____, 11, 11, 15, 15

The missing value of h could be 9 or 20.
8 0
3 years ago
If x = –3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the e
natita [175]

Equations don't really have x intercepts, functions or curves do. They're also known as the zeros of the function.  When we set a function equal to zero we get an equation to solve, and the zeros of the function become the solutions or roots of the equation.

If a quadratic equation only has one root, that's a repeated root corresponding to a discriminant of zero.

In this example our equation is something like 2(x+3)^2=0, or expanded

2x^2+12x + 18 = 0

The discriminant d=b^2-4ac here is

d = 12^2 - 4(2)(18) = 0 \quad\checkmark


7 0
3 years ago
Given the function f(x) = 5^x, Section A is from x = 0 to x = 1 and Section B is from x = 2 to x = 3. Part A: Find the average r
Wewaii [24]
Table of the graph:
x: <em></em>1  2    3 
y: 5  25  125

Average Rate of Change = \frac{y_{2}-y_{1} }{x_{2} -  x_{1} }

Section A = 25-5/2-1 =20/1 =20
Section B = 125 - 25/ 3-2 = 100/1 = 100

So, Section B is 5 times greater than A.
Section B is greater because the slope of two points is greater than points in Section A.
8 0
3 years ago
Other questions:
  • Consider the diagram.<br> What is the length of segment AB?<br> A) 7<br> B) 9<br> C) 18<br> D) 25
    11·1 answer
  • Which number is the smallest? .33 .8 2 8
    9·2 answers
  • Solve for x.<br><br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B4x-3%7D%7B3%7D" id="TexFormula1" title="\frac{4x-3}{3}" alt="\f
    15·1 answer
  • What substitution should be used to rewrite 16(x3 + 1)2 – 22(x3 + 1) – 3 = 0 as a quadratic equation?
    10·2 answers
  • 15x + 35 = 110 whats the value of x​
    10·1 answer
  • A hat contains 5 balls. The balls are numbered 1, 2, 4, 7, and 8. One ball is randomly selected and not replaced, and then a sec
    5·1 answer
  • Create an equation that represents the total cost , t , of buying s single game tickets in the main box section.
    5·1 answer
  • If PQRS is a parallelogram, find the values of X and Y<br> Please help!!
    12·1 answer
  • If ‘BOXES’ is OBXSE, then BOARD is
    15·1 answer
  • [(8-2) x (3+2) -1] x 3
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!