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
aniked [119]
3 years ago
12

Can someone please help me!!!

Mathematics
1 answer:
zalisa [80]3 years ago
5 0
Number 12. Is -4ySquared+5y-9
You might be interested in
Find the x-intercept of the parabola with vertex (1,-13) and y-intercept (0,-11).
Advocard [28]
1. find equation

general solutions are:
y = a x^{2} +bx +c \\ \\ \frac{dy}{dx} = 2ax +b

for P(0,-11)

-11 = 0a + 0b +c ⇒c = -11

for p(1,-13)
-13 = 1a + 1b -11 \\ a+b = -2

and

0 = 2a + b \\ b = -2a

solve for a and b:
a - 2a = -2 \\ a = 2 \\ b = -4

the total equation is now:

y = 2 x^{2} -4x -11

To find the x-intercept set y=0 and solve for x

0 = 2 x^{2} -4x-11
4 0
3 years ago
Read 2 more answers
The 7 a.m. flight from Dallas to Chicago is on time 75% of the time. Fran created this spinner to simulate the scenario.
Elena-2011 [213]

Answer:

CORRECT OPTION is (C) The flight will be late on one of the three days.

Step-by-step explanation:

The 7am flight from Dallas to Chicago is on time 75% of the time.

A spinner with four sections was created by Fran to simulate this scenario.

Since the 4 sections were equal, it means each section was 25% of the spinner.

3 sections were shaded. That implies 25 × 3 = 75% of the spinner was shaded area.

This coincides with the 75% probability that the flight is on time on a given day.

In other words, if the spinner's pointer lands on shaded area, the flight will be on time. If the pointer lands on an unshaded portion, the flight will be late.

Now Fran spun the spinner 3 times so she has 3 outcomes. The outcomes are:

- Shaded   - Shaded   - Unshaded

CORRECT OPTION is (C) The flight will be late on one of the three days.

4 0
2 years ago
If 8 of the 15 tests with the heaviest weight then what percent is that
dalvyx [7]
Idk the answer, sorry
3 0
3 years ago
Read 2 more answers
Solve for x. Round to the nearest tenth of a degree, if necessary.​
MissTica

Answer:

x ≈ 54.8°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan x = \frac{opposite}{adjacent} = \frac{PQ}{QR} = \frac{7.1}{5} , then

x = tan^{-1} (\frac{7.1}{5} ) ≈ 54.8° ( to the nearest tenth )

4 0
2 years ago
Round 5,600,679 to the nearest thousand
vampirchik [111]
The answer is 5,601,000
4 0
3 years ago
Other questions:
  • Select all that are measures of angles coterminal with a 145° angle.
    13·2 answers
  • Which inequalities have -0.5, 2.5, and 4 as part of the solution set? Select all that apply.
    9·2 answers
  • A scale measures weight to the nearest 0.1 pounds. Which is the most
    10·1 answer
  • A camping ground began with 240 pounds of food and each day consumed about 12 pounds. After how many days did they have 180 poun
    6·2 answers
  • clay costs $5.60 per kilogram. The art teacher needs to buy 4.5 kilograms for the next project. How much will 4.5 kilograms of c
    15·2 answers
  • Find the volume of a ball with a radius of 7cm.
    5·1 answer
  • Tell whether the equation has one, zero, or infinitely many solutions.9(x − 3) + 15 = 9x − 11.
    12·2 answers
  • The sum of 3 consecutive multiples of 4 is 120. Find the numbers.
    12·1 answer
  • Given that line CD is a perpendicular bisector of triangle ABC, if side AB has a length of 11 and side AC has a length of 14 wha
    8·1 answer
  • Select all the expressions that are equivalent to 40% of 90. A. 72 B. 36 C. 4/5x9. D. 40/100 divided by 90. E. 2/5x90
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!