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
Bingel [31]
3 years ago
5

Find the x-intercept(s) Round to nearest hundredth if needed y=-2x^2-8x-4​

Mathematics
1 answer:
kherson [118]3 years ago
6 0

y=-2x^2-8x-4

-2x^2-8x=4

divide by negative 2

x^2+4x=-2

complete the square

(x+2)^2=-2+4

(x+2)^2=2

x+2=±\sqrt{2}

x=-2±\sqrt{2}

nearest hundreths,

x=-0.59

x=-3.41

You might be interested in
Ruth Brown wants to borrow $2,600 for 90 days to pay her real 'estate tax. State Savings and Loan charges 7.25% ordinary interes
podryga [215]

Answer:

Step-by-step explanation:

Ordinary interest rate = principal × rates × ( time / 360)

exact interest rate = principal × rates × ( time / 365)

for states saving and loan of rate 7.25 %

ordinary interest rate = $ 2600 × 0.0725 × ( 90 / 360) = $ 47.125

total amount due after 90 days = $ 2647.125

for Security Bank of 7.5%

exact interest = $2600 × 0.075 × ( 90 / 365) = $ 48.75

amount due after 90 days = $ 2600 + $ 48.75 = $ 2648.75

b) considering the amount to be paid at maturity it is better to borrow state savings and Loan although the difference is not really much.

4 0
4 years ago
What is p(4,4) on two consecutive rolls of a number cube
Fiesta28 [93]
The probability of rolling 1 number, a four, on a 6-sided number cube, is 1/6.
On the second roll, the probability of rolling 1 number, a four, is again 1/6 (remember theoretical probability for one event does not consider previous rolls).
But the probability of rolling a four on 2 on consecutive rolls will be the probability of the first event times the probability of the second event. Think of it as rolling a four on the first time and the second time, and whenever there is "and" you need to multiply the probabilities. The probability of rolling a four on two consecutive rolls is 
(1/6)*(1/6) = 1/36.
5 0
3 years ago
Given the function g(x)=10x-2<br><br><br>what is g(7)?​
jekas [21]

Answer:

g(7)=68

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What are the x-intercepts of the graph of y = x2 + 7x + 10?
11111nata11111 [884]

Answer: x-int : (-2,0), (-5,0)

y-int: (0,10)

Step-by-step explanation:

7 0
3 years ago
Hey! please help me posted picture of question:)
Ilia_Sergeevich [38]
The answer is a and c

Hope this helps.
6 0
4 years ago
Other questions:
  • What is the slope of a line parallel to y=(1\2)x+3
    13·1 answer
  • The area of the triangle is 15 square centimeters.
    15·1 answer
  • Help with Math please!
    12·2 answers
  • The Ramy family bought 4 sandwiches and 3 salads. They spent $24. Let x be the cost of a sandwich and y be the cost of a salad.
    12·1 answer
  • ► Find the percent of the number<br> page. Cross out the answers as<br> 1 40% of 80
    6·1 answer
  • John has a bag of marbles the contains 12 red marbles, 20 green marbles, and 17 blue marbles. If John pulls one marble out of th
    13·2 answers
  • I really need this very badly, press the photo if neccessary ​
    6·1 answer
  • A rectangle has an area of
    11·1 answer
  • 3. Find f(5)+j(-2) if f(x)=12-3x and j(x)=x² + 4x - 1.<br><br> HELP ME PLEASEEEE
    7·1 answer
  • What is the solution to this matrix equation?[ -1 4 3 2] [x y] = [-26 8] i need to find (x=?) and (y=?)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!