Solve the quadratic equation for x. What is one of the roots?
2x2 + 9x − 5 = 0
A) −
1
2
B) −
1
5
Eliminate
C)
1
2
D)
1
5
Answer:
this is the answer to your question
Dos veces la edad de Mary más 7 es igual a 33. ¿Cuál es la
edad de Mary?
Answer:
La edad de Mary es:
13 años
Step-by-step explanation:
Planteamiento:
2m + 7 = 33
m = edad de Mary
Desarrollo:
2m = 33 - 7
2m = 26
m = 26/2
m = 13
Comprobación:
2*13 + 7 = 33
26 + 7 = 33
Bob is hiking down a 12-mile country trail. He could hike at 3 mph for the first two hours and then go the rest of the way at 5 mph or he could just go the whole way at 4 mph. How long would each of these options take? Which option is the faster?
Answer:
The first option will take a total of 3.2 hours while the second option will take just 3 hours
This shows that the second option is faster
Step-by-step explanation:
Here, we want to compare two hiking options and see the one which is faster.
At any point in time;
Distance = speed * time
In the first option, he could hike at 3 mph for two hours.
Total distance covered would be 3 * 2 = 6 miles
Distance left = 12 miles - 6 miles = 6 miles
Time taken to hike 6 miles at 5 mph will be ; 6/5 = 1.2 hours
Total time for the first type hiking = 1.2 hours + 2 hours = 3.2 hours
For the second option;
Time = distance/speed = 12 miles/4 mph = 3 hours
We can see that the second option is faster
Here, we are required to determine how long each of the options take and which of the 2 options is faster .
Therefore;
Therefore;Option 1: 3.2hours
Therefore;Option 1: 3.2hoursOption 2: 3hours.
Therefore;Option 1: 3.2hoursOption 2: 3hours.Ultimately, since option 2 takes 3hours and option 1 takes 3.2hours to hike down the distance respectively, Option 2 is faster.
Total hiking distance = 12 milesFor first option;
He could hike at 3 mph for the first two hours and then go the rest of the way at 5 mph. The statement above suggests that after the first 2 hours, 6 miles will have been covered and the remaining 6 miles can be covered at 5mph in (6/5)hours = 1.2hours.Therefore, the total time taken using this option is;(2 + 1.2) hours = 3.2hours.For second option;
He could go the whole way at 4mph.At this pace, he is able to travel the whole 12mile hiking distance in (12/4)hours.Therefore, the total time taken using this option is; 3hours.Therefore;
Option 1: 3.2hoursOption 2: 3hours.Ultimately, since option 2 takes 3hours and option 1 takes 3.2hours to hike down the distance respectively, Option 2 is faster.
Read more:
https://brainly.com/question/24392595
How do you determine a closer approximation for the square root of 12
Answer:
look at it
Step-by-step explanation:
What is the value of m in the figure? In this diagram ABD~BCD
Answer:
D. √136Step-by-step explanation:
see attached sketch
Answer:
sqrt 136
Step-by-step explanation:
just took the a pe x
If it is 375 miles form Los Angeles To San Francisco and on a map the scale is 2cm=10miles how far apart are they on the map
dees nute lil d man you knoe bro sup
Clara says that if you square the number 4 and then divide the result by 2, you end up with 4. Is Clara correct? Explain. Please help.
Answer:
She is incorrect
Step-by-step explanation:
If you square 4 you get 16 and divide 16 and 2 you get 8 so shes wrong.
Answer: Clara is incorrect
Step-by-step explanation:
The square root of 4 is 2
2 ÷ 2 = 1
You end up with 1 not 4, therefore, Clara is wrong.
Edit: Look at the other answer, I sadly made a mistake thinking the question said square root but it said square I apologize .
(-1,2), (-1,-5) can you solve this for me
Answer:
Use FOIL I helped with what I could I don't fully understand the problem but I'm pretty sure FOIL needs to be used to solve.
help‼️✌⛓✌
also please try to answer as soon as possible
Answer:
do this then this then that and your done :D
Step-by-step explanation:
hope this helps :))
Find the distance between the points (-4, 6) and (3, -7)
Answer:
the distance between (-6,4) and (3,-8) is 15 units
Write the algebraic expression:
Two times a number plus two
What is the graph of g?
Answer:
function gis defined as g (6) = - f (-4) graph
Can anyone help me please??
Answer:
I believe the answer is B 0.6
I hope this helps :)
Answer:
0.6
Step-by-step explanation: Since its 6, the probability should be 0.6
write the domain and the range of the function as an inequality, using set notation, and using interval notation. also describe the end behavior of the function
the graph of the quadratic function f(x) = -x^2 is shown
When the domain of the function is continuous, a different approach may well be required, although even here we note that in practice, optimization problems are usually solved using a computer, so that in the final analysis the solutions are represented by strings of binary digits (bits).
5^x + 5^x+1= 150
Find x
Help me pls i need soon
Tksss
Answer:
[tex]x=2[/tex]
Step-by-step explanation:
So we have the equation:
[tex]5^x+5^{x+1}=150[/tex]
First, separate the second term:
[tex]5^x+(5\cdot5^x)=150[/tex]
Let u equal 5ˣ. So:
[tex]u+5u=150[/tex]
Combine like terms:
[tex]6u=150[/tex]
Divide both sides by 6:
[tex]u=25[/tex]
Substitute back u:
[tex]5^x=25[/tex]
Take the base 5 logarithm of both sides:
[tex]\log_5(5^x)=\log_5(25)[/tex]
The left cancels:
[tex]x=\log_5(25)[/tex]
Evaluate the right:
[tex]x=2[/tex]
So, our answer is 2.
And we're done!
Solve for x : x/8 = 8
Quickly !
The answer is [tex]x=64[/tex]
The first and last step is to multiply both sides by 8
[tex](\frac{x}{8} )(8)=8*8[/tex]
Multiplying [tex]\frac{x}{8}[/tex] by [tex]8[/tex] makes x by itself and 8*8 is 64
[tex]x=64[/tex]
87 times 422 divided by 4
Answer:
9178.5
Step-by-step explanation:
Follow PemDas
From Left to Right, you multiply 87 x 422, which is 36,714
Then, thake that number and divide it by 4, giving you 9,178.5
For the pair of functions, find (f • g)(x) and (gof)(x).
f(x) = -2x2 g(x) = x + 4
A. (g)(x) = -283 - 8x?: (gof)(x) = -2x3 - 8x2
B. (f 9)(x) = -2x2 – 16x - 32; (gof)(x) = -2x2 + 4
C. (og)(x) = -2x2 + 4; (g - f)(x) = -2x2 – 16x - 32
D. (fog)(x) = -2x2 – 32; (g - )(x) = -2x2 + 4
-1/8 x 5 x 2/3
I really need help I don't understand!
Answer:
I think answer will be -10.
Step-by-step explanation:
when u multiply -1/8*5/1=-5
-1/8*5
-1/8*40/8= 40/8=-5
2/3*5
2/3*-15/3= 30/3=- 10
I think answer will be -10
if it is wrong i am really sorry
i don't get it (solve)
Using one or more of your senses to gather information is called O Inferrence O Prediction O Observation O Hypothesis
evaluate 207.3×0.04
Let's first just do the multiplication and ignore the decimal points.
2073 x 4 = 8292.
Now there are 3 decimal points we need to consider. So, that gives us an answer of 8.292
:)
Which algebraic equation models the English sentence, a number subtracted from 8 is equal to 4?
let's x represent a number
8-x = 4
Answer:
8-x = 4
Step-by-step explanation:
took the test and got it correct
What are the two equations to set up to solve the equation |2x−3|=11 ?
2x+3=11 and 2x+3=−11
−2x−3=11 and 2x−3=−11
2x−3=11 and 2x−3=−11
2x+3=11 and 2x−3=−11
Answer:
youre answer is c
i dont know how else to explain other than i took the test with the same question
-kb
The required equations are 2x − 3=11 and 2x − 3=−11. Option C is correct.
Given that,
To determine what are the two equations to set up to solve the equation |2x−3|=11.
The equation is the relationship between variables and is represented as y =ax +b is an example of a polynomial equation.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
The given equation,
| 2x − 3| = 11
2x - 3 = ± 11
Taking (+)
2x - 3 = 11 - - - - - - - (1)
Taking (-)
2x - 3 = -11 - - - - - - - - (2)
Thus, the required equation are 2x−3=11 and 2x−3=−11. Option C is correct.
Learn more about the equation here:
brainly.com/question/10413253
#SPJ2
11h - (2h-1) = 118
what is h?
Answer:
h =13
Step-by-step explanation:
[tex]11h - (2h-1) = 118\\\\\mathrm{Expand\:}11h-\left(2h-1\right):\quad 9h+1\\9h+1=118\\\\\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}\\9h+1-1=118-1\\\\Simplify\\9h=117\\\\\mathrm{Divide\:both\:sides\:by\:}9\\\frac{9h}{9}=\frac{117}{9}\\\\Simplify\\h =13[/tex]
Answer:
H=13
Step-by-step explanation:
First, remove the individual terms from parenthesis. Be careful to handle the signs of each individual term correctly:
to solve for h
while keeping the equation balanced:
9 h 9 = 117 9
9 h 9 = 13
Find the missing exponent.
Answer: what missing exponent?
Step-by-step explanation:
A gym employee is paid monthly. After working for three months, he had earned $4,500. To
determine how much money he will make over a six-month period, he created the table below.
Write an equation to represent the constant of proportionality
Answer:
$9000
Step-by-step explanation:
A gym employee has earned in 3 months =$4500
Then his monthly salary =$4500/3 =$1500
After six months he will earn = 6 × his monthly salary
= 6×$1500=$9000
Find the x-intercept and y-intercept of the liné.
- 6x + 5y = 21
Answer:
x=-3.5 or -7/2 (same thing)
y=21/5
Step-by-step explanation:
x intercept is when y=0
y intercept is when x=0
so
x intercept is
-6x=21
x=21/-6
x=-3.5
y intercept is
5y=21
y=21/5
Which shows a difference of squares?
Answer:
the answer is C on egd2020
Step-by-step explanation:
god bless:}
If an object travels for 10 seconds at a velocity of 50 feet per second, how far did it travel?
Answer:
500
Step-by-step explanation:
50x10 = 500
50 feet per second so we multiply 50 (the speed per second) by 10 (the time given). You can also use a formula like this:
S x T
S= Speed
T= Time