Answers
Step-by-step explanation:
Given
f(x) = - x² - 9x - 7
f(3) = -( 3) ² - 9 * 3 - 7
= - 9 - 27 - 7
= -43
Hope it will help :)
f(3) = -(3)^2 - 9(3) - 7
f(3) = -43
Related Questions
what is half of 3/4 teaspoon?
Answers
Answer:
One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons. One method of finding the answer in the fraction form of 3/8 is to multiply the fraction 1/2 by 3/4 : )
Step-by-step explanation:
One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons.
Here, we have,
given that,
what is half of 3/4 teaspoon
One method of finding the answer in the fraction form of 3/8 is
to multiply the fraction 1/2 by 3/4 ,
or, we can divide 3/4 by 2
i.e. 1/2 × 3/4
as, half = 1/2
so, we get,
=> 3/ 2×4
=> 3/8
=>0.375
Hence, One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons.
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I just don’t get what they want so
Answers
Find an order pair (x,y) that is solution to the equation 3x-y=8
Answers
Answer:
(2.67,-8)
Step-by-step explanation:
You first make x 0 so it is -3x0 to cancel that out to find y. You then see that you get -y=8 so you make y positive by moving the negative to the other side to get y = -8. Then, you do the same type of process for x and get 2.67. I could be wrong but wanted help as much as I could!
please help asap!!! ive done most of it
Answers
Answer:
what type of answer are you looking for exactly
Step-by-step explanation:
Louis invested £2950 in a savings account for 5 years.
He was paid 1.9% per annum compound interest for each of the first 4 years.
He was then paid R% interest for the fifth year.
Louis had £3257 in his savings account at the end of the 5 years.
Work out the value of R.
Give your answer correct to 1 decimal place.
Answers
Answer:
2.4%
Step-by-step explanation:
The value of R is, 2.4%
What is Simple interest?A quick and easy method of calculating the interest charge on a loan is called a Simple interest.
Given that;
Louis invested £2950 in a savings account for 5 years.
He was paid 1.9% per annum compound interest for each of the first 4 years.
And, He was then paid R% interest for the fifth year.
Louis had £3257 in his savings account at the end of the 5 years.
Here, We know that;
⇒ Compound interest formula = Capital × (1 + r%) ⁿ
Where, n is time in years.
So, We can formulate;
⇒ £2950 × (1 + 0.019)⁴
⇒ £3180.67
And, For calculate R;
⇒ £3180.67 × (1 + R%)⁵ = £3257
⇒ R = 2.4%
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simplify these expressions: 12x - 3x
Answers
Answer:
12x-3x
= 9x
Step-by-step explanation:
Hope it is helpful....
Which of the following has the steepest graph ?
Answers
Answer:
D also if you input these equations into Desmos it can graph it for you :)
Step-by-step explanation:
7(2 + 6 – 4d) = pl help me I don’t get it
Answers
Answer:
Step-by-step explanation:
1. 1 Simplify 2+6-4d to -4d+8.
7 ( -4d + 8)
therefor, the answer is, 7( -4d + 8)
Answer:
7(2 + 6 - 4d) = 7(8 - 4d) = (56 - 28d)
Step-by-step explanation:
There is no possible answer to this equation but this is the most accurate equation, since you cant go any further, this is your simplified form.
Help me, correct answers appreciated
Answers
Answer:
No
Step-by-step explanation:
-6 is X
-10 is Y
-10 is smaller than - 8
-10 is smaller than -8
-6 is greater than -8
So therefore -6 is the answer
The grocery store had 4lb bag of oranges for 4.80$ and a 6lb bag for 6.18$ . What is the difference of the 4lb bag of oranges and the 6lb bag of oranges
Answers
Answer:
$1.38
Step-by-step explanation:
The grocery store had 4lb bag of oranges for 4.80$ and a 6lb bag for 6.18$ . What is the difference of the 4lb bag of oranges and the 6lb bag of oranges
The cost difference is calculated as:
Cost of 6lbs of oranges - Cost of 4lbs of oranges
Cost of 6lbs of oranges = $6.18
Cost of 4lbs of oranges = $4.80
Hence,
= $6.18 - $4.80
= $1.38
5x^2-26x-24=0
what does x equal?
Answers
Answer:
x=4
x=6/5
Step-by-step explanation:
5x^2-26x-24=0
(x-4)(5x-6)
What is the y-intercept of function g if g(x) = -4f(x) + 12?
OA. (0,-4)
OB. (0,12)
OC. (0,8)
OD. (0,1)
Answers
Answer:
the correct answer is C (0,8)
Step-by-step explanation:
got 100%
Answer: C (0,8)
Step-by-step explanation: correct on test
x-5= -4
what is the answer for x?
Answers
Answer:
x = 1
Step-by-step explanation:
by solving the equation we get ;
x -5 = -4x = -4 + 5x = 1Step-by-step explanation:
x = 1
hope it helps
Be happy and make happy
What is the value ( 1.6 x -0.25) x 4 to the second power
Answers
Answer:
2.56
Step-by-step explanation:
( 1.6 x -0.25) x 4= -1.6
(-1.6)^2 = 2.56
When using substitution to solve this system of equations
6y + 2x = 3
2x + y = 8
which variable will you solve for?
Answers
X = 4.5
Y = -1
A clothing manufacturer produces 120 garments per hour, of which 5 are damaged. How many garments without damage would the manufacture except to produce in 8 hours?
Answers
Answer:
Step-by-step explanation:First we have to found all the clothes that the manufacturer produces in 8 hours,
As given 120 clothes = produce in 1 hour
X clothes = produce in 8 hour
By cross multiplication, we get
X= 120*8
X= 960 total clothes produced in 8 hours
As also given that in each hour 5 clothes damaged ,so we can write as
5 clothes = damaged in 1 hour
Y clothes = Damaged in 8 hour
By cross multiplication we get
Y= 40 clothes damaged in 8 hour
So the total clothes that manufacturer produce with out damage clothe will be ,
Total normal clothes = X-Y = 960 - 40 = 920 clothes
A coin is tossed 30 times. The experimental probability of the coin showing tails is 40%. How many times did the coin show heads?
Answers
Answer: 10 i just had this question
ep-by-step explanation:
Answer:
18
Step-by-step explanation:
Just find the other 60 percent of 30 so just multiply it by 6/10 which is 18
Written as a simplified polynomial in standard form, what is the result when
(x - 2)^2is subtracted from 9x^2-8x?
Answers
Answer:
9x^2 - 10x -4
Step-by-step explanation:
It is set up like this
9x^2 - 8x
- (x-2)2
First solve (x-2)2
the answer is (2x-4)
so now you can do this instead
9x^2 - 8x
- 2x - 4
----------------------------------
9x^2 - 10x +4
9x^2 minus zero is 9x^2
-8x-2x is -10x
0- -4 is 4 because that is like saying 0 + 4 because double negatives equal a positive
A simpler way is to change all the numbers to the opposite sign and then change the minus to a plus
like this
9x^2 - 8x
+ -2x + 4
----------------------------------
9x^2 - 10x +4
Answer:
8x^2-4x-4
Step-by-step explanation:
On delta math
4t + 5 = -9
Solve for t
Answers
Answer:
t = -3.5
Step-by-step explanation:
4t + 5 = -9
4t = -14
t = -3.5
Answer:
t=1
Step-by-step explanation:
subtract 5 from both sides then simplify and divide
11 The table below shows the amount of a decaying
radioactive substance that remained for selected
years after 1990.
0
2
5
9
14
17
19
Years After 1990 (X)
Amount (9)
750
451
219
84
25
12
8
Write an exponential regression equation for this
set of data, rounding all values to the nearest
x thousandth. Using this equation, determine the
amount of the substance that remained in 2002, to
the nearest integer.
Answers
Simplify 5x ax 5 x a
Answers
Answer:2.a
Step-by-step explanation:
There are 48 grapes in a bag. Four friends are sharing the grapes.
Enter an equation that can be used to find out how many grapes g each friend will get If each friend gets
the same number of grapes.
The equation is ?
Answers
48 divided by 4
Step-by-step explanation:each freind gets 12 grapes
Maria and Don had $20,800 in medical expenses. Their family medical insurance covered 60% of these expenses. The IRS allows medical and dental expense deductions for the amount that exceeds 10% of a taxpayer's adjusted gross income. If their adjusted gross income is $101,598, how much can they claim as a medical deduction? Fill in the blank 1 Next
Answers
Maria and Don has claimed $1839.8 as a medical deduction.
Calculate medical expenses after removing medical insurance expense, that is
20,800 - 60% of 20,800
= 12480
Now, 20,800-12480
=$8,320
Now calculate 10% of gross income
10% of 101,598
= 10/100 × 101,598
= 0.1 × 101,598
= $10,159.8
Now medical deduction = 10% of income - Medical expenses
= 10,159.8-8,320
= $1839.8
Therefore, the medical deduction is $1839.8.
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Solve by completing the square. x^2-10x-5=28
Answers
Answer:
Hey THERE
x=5+√58 or x=5−√58 is the answer
Step-by-step explanation:
x2−10x−5=28
Answer: look at the picture
Step-by-step explanation: hope this help :)
A housekeeper had 3/7 of a spray bottle of a cleaning solution. Used 1/9 of the solution in a day . How much of the bottle did she use
Answers
Answer:
27/7 or 3 6/7
Step-by-step explanation:
3/7 divided by 1/9 = 27/7
rounded to 3
Have a nice day
The 0.317 spray bottle did she us.
It is required to find how much of the bottle did she use.
What is fraction?A fraction having whole numbers for the numerator and denominator. A fraction is a number of the form: ab where a and b are integers and b≠0. It represents the division of two numbers.
Given:
We know that total =1
For a cleaning solution=3/7 of a spray bottle
Used=1/9
According to given question we have,
Subtract the fractions
3/7 - 1/9
Calculate the difference,
=20/63
=0.317
Therefore, the 0.317 spray bottle did she us.
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I think it’s C am I correct
Answers
Answer:
yes you are correct it is c
Step-by-step explanation:
The area of a rectangle is 300 ft2. The width of the rectangle is 8 ft less
than the length. What are the dimensions of the rectangle?
Answers
Answer:
Step-by-step explanation:
Factor x2 +8x +16, so (x+4)2 = 100
Please solve number 16 for me.
Answers
Answer:
post pictures also for your answer
_____% of 145 = 75
48.3%
193.3%
76.5%
51.7%
Answers
Answer:
51.7%
Step-by-step explanation:
P x 145 = 75
P = 75 / 145
P = .5172
P = 51.7%
Have a nice day! <3
Hi if u could help me that'd be great
Answers
Answer:
1 hour and 45 minutes
and 1 hour
Step-by-step explanation:
x= run
y= walk
5x+2.5y = distance
5x+2.5(1.5)=12.5
solve for x
5x=8.75
x=1.75
1.75 in hours is 1 hour and (60*.75)=45
1 hour and 45 minutes
" If the marathon race participant ran for 2 hours, how many hours did the participant walk?"
We use the same equation
5x+2.5y=distance
we'll assume that they till walked 12.5 miles
which means that
5(2)+2.5y=12.5
solve for y
2.5=2.5y
y=1
1 hour
Answer:
Everybody, everybody
Get out on the floor
It can get a little crazy
When the kick hits the floor
Make a scene Make a scene
Nobody can ignore
Don't knock it, til you rock it
We can't take it no more!
Bring the lights up!
Bust the doors down!
Dust yourself off,
Shake it up!
Shake it up!
DJ set it off!
Take it up a notch
All together now!
Shake it up!
Shake it up!
Step-by-step explanation: