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
son4ous [18]
4 years ago
13

 What are the x-intercepts of the quadratic function?

Mathematics
1 answer:
RoseWind [281]4 years ago
3 0
y=-x^2+2x-1=-(x^2-2x+1)=-(x-1)^2\ \ \Rightarrow\ \ y \leq 0\\ \\C.\ x=2\ \ \Rightarrow\ \ \ y=-(2-1)^2=-1\ \ \Rightarrow\ \ (2;-1)\\ \\Ans.\ C
You might be interested in
(x–3)^2(x+3)^2<br> HELP MEE
Vsevolod [243]
(x^2-6x+9)(x^2+6x+9) and expand it
8 0
3 years ago
A bean plant grew 1 1/2 inches per day. How much did the plant grow in 9 days?​
SIZIF [17.4K]

Answer:

108 Inches

Step-by-step explanation

9 * 12 = 108

4 0
3 years ago
Read 2 more answers
Find the volume of the solid whose base is the circle x2+y2=25 and the cross sections perpendicular to the x-axis are triangles
ivanzaharov [21]

Triangles with height h and base b, with b=h have area \dfrac{b^2}2.

Such cross sections with the base of the triangle in the disk x^2+y^2\le25 (a disk with radius 5) have base with length

b(x)=\sqrt{25-x^2}-\left(-\sqrt{25-x^2}\right)=2\sqrt{25-x^2}

i.e. the vertical (in the x,y plane) distance between the top and bottom curves describing the circle x^2+y^2=25.

So when x=4, the cross section at that point has base

2\sqrt{25-16}=6

so that the area of the cross section would be 6^2/2 = 18.

In case it's relevant, the entire solid would have volume given by the integral

\displaystyle\int_{-5}^5\frac{b(x)^2}2\,\mathrm dx=4\int_0^5(25-x^2)\,\mathrm dx=\frac{1000}3

6 0
3 years ago
∆ABC is translated 6 units up and 3 units left to create ∆A'B'
guajiro [1.7K]

Keep in mind that the positive directions of the two axis are: upwards for the y axis and rightwards for the x axis.


So, translating a point 6 units up means to go 6 units along the positive direction on the y axis. For this reason, the new y coordinate will be 6 units more than the old one.


Similarly, going 3 units left means to decrease by 3 the x coordinate, because we're following the negative direction.


So, to recap, this transformation maps (x,y) \to (x-3, y+6)


This means that the two points become


A = (-1, 2) \implies A' ( -4,8),\qquad B = (1,5) \implies B' = (-2,11)

6 0
4 years ago
Describe the shape of the data for German male adults, and explain how you came to that conclusion. Are there any outliers in th
yarga [219]
Desculpe-me eu não sei mas irei falar com meu professor!
5 0
4 years ago
Read 2 more answers
Other questions:
  • Which of the numbers 2, 3, 4, 5 , 6 and 10 are factors of 1900
    10·1 answer
  • a 35m tall building casts a shadow. the distance from the top of the building to thw tip of the shadow is 26m. find the length o
    12·1 answer
  • At the market, 8 apples cost \$4 dollar sign, 4.<br> How much do 9<br> apples cost?
    10·2 answers
  • I start school in a couple days and I’m really struggling with this summer homework.. I’m not sure if I’m doing it the right way
    15·1 answer
  • Find the roots of the equation x^2 + 16 = 0.
    6·1 answer
  • Lin and Han's families provide money for their school lunch
    10·1 answer
  • What is the equation of a circle with center (7, 2) and radius 2?
    6·1 answer
  • Chang wants to attend a two-year university with an annual tuition of $3,250. He has $2,000 in savings and earned a work-study f
    11·1 answer
  • Rectangle describe in your own words​
    6·2 answers
  • PLEASE HELP!!! ITS DUE TODAY!! WILL GIVE BRAINLIEST!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!