Answer:
-384
Step-by-step explanation:
f(x) =x^2+8x
evaluate f(x)=-16
input -16 for x
-16^2+8(-16)
-16^2= -256
then, 8*-16=-128
add the two negatives
-256+-128= -384
I will give extra points
Can you solve this problem so that you can explain me as best as possible to understand the problem?
It is called Combined Operations with fractions and I know that some will get the name confused but I think it is the same
Answer:
Answer: 2
Step-by-step explanation:
[tex] \frac{2}{3} (4 \frac{1}{6} - \frac{7}{6} ) \\ [/tex]
express the mixed fraction into proper fraction:
[tex] { \boxed{4 \frac{1}{6} = \frac{(6 \times 4) + 1}{6} = \frac{25}{6} }}[/tex]
then solve simplify:
[tex] = \frac{2}{3} ( \frac{25}{6} - \frac{7}{6} ) \\ [/tex]
solve the bracket:
[tex] = \frac{2}{3} ( \frac{25 - 7}{6} ) \\ \\ = \frac{2}{3} ( 3)[/tex]
then simplify:
[tex] = \frac{2 \times 3}{3} \\ \\ = 2[/tex]
I need help with this problem please
Answer:
200
Step-by-step explanation:
15(68-60)+80
15×8=120
120+80=200
just substitute
Add The follwing pqr+3pqr
Answer:
4pqr
Step-by-step explanation:
because pqr is 1pqr
so 1pqr + 3pqr is
4pqr
How do you write the difference of nine times a number and eight is 64 as an equation?
Step-by-step explanation:
9x-8=64
plss mark brainliestt
HELP WILL GIVE BRAINLIEST
this also somebody help me optional math
Answer:
hope it helps.stay safe healthy and happy..PLEASE HURRY IM IN A RUSH!!!<3
Answer:
64 and 100 are the squares
Answer:
[tex]8^{2} = 8*8=64\\10^{2} = 10*10=100[/tex]
Step-by-step explanation:
Hope it helps,... Chow,...!
PLEASE HELP!!
i'm really confused on how to do this...
(this should be 50 points but sometimes the system doesn't put that in for some reason)
I have to solve this absolute value equation: |4x-3| = |x+5|
and I have to check if there is an extraneous solution and show my work. If you can please show all your steps and explain that would be so helpful!
9514 1404 393
Answer:
x = {-2/5, 2 2/3}
Step-by-step explanation:
There are several ways you can solve this. Maybe the simplest is to take advantage of the relation ...
[tex]\sqrt{x^2}=|x|[/tex]
Squaring the absolute value expression on both sides gives ...
(4x -3)^2 = (x +5)^2
15x^2 -34x -16 = 0 . . . . rewrite to standard form
(5x +2)(3x -8) = 0 . . . . . factor
x = -2/5, +8/3
__
Check
To determine if one of these solutions is extraneous, we can try them both in the original equation. We find they both satisfy the equation, so neither found solution is extraneous.
For x=-2/5, |4(-2/5)-3| = |-2/5 +5| ⇒ |-4 3/5| = |4 3/5| . . . . true
For x = 8/3, |4(8/3) -3| = |8/3 +5| ⇒ |(32 -9)/3| = |(8 +15)/3| . . . . true
_____
Additional comment
Often, we solve absolute value equations using piecewise functions:
|4x -3| = {4x -3, for x ≥ 3/4; -4x +3, for x < 3/4}
|x +5| = {x +5, for x ≥ -5; -x -5, for x < -5}
Now, we have three regions in which to look for solutions: (-∞, -5], [-5, 3/4], [3/4, ∞).
In the region (-∞, -5], the equation is ...
-4x +3 = -x -5 ⇒ x = 8/3 . . . . . no solution in the region
In the region [-5, 3/4], the equation is ...
-4x +3 = x +5 ⇒ x = -2/5 . . . . . a solution in the region
In the region [3/4, ∞), the equation is ...
4x +3 = x +5 ⇒ x = 8/3 . . . . . . a solution in the region
Note that this last equation is identical to the equation for the region (-∞, -5] with both sides multiplied by -1.
Effectively, we have found the two solutions to ±(4x -3) = (x +5). The trick is to figure whether either of those solutions lies in the region for which the respective equation is defined.
How to multiply 8 with 0.9? Show your method. Link = report.
Answer:
you multiply 8 with 0.9 easy like that
Evaluate the expression when c=7 and d=4.
5dtc
Answer:
27
Step-by-step explanation:
5*4=20
20+7
27
please correct if wrong ^-^
Step-by-step explanation:
=5(4*t*7)
=5(28t)
=140t
A Greek mathematician named Pythagoras is said to have discovered the following number pattern. Find the next three sums by using inductive reasoning. Look for the pattern don't just add
1st row:1=1
2nd row: 1+3=4
3rd row: 1+3+5=9
4th row: 1+3+5+7=16
5th row: 1+3+5+7+9=?
6th row: 1+3+5+7+9+11=?
7th row: 1+3+5+7+9+11+13=?
10+ [(50 :5+6) x 3] - 4
e 34
o 50
54
I don't know
Please help ASAP
Answer:
The third one 54
Step-by-step explanation:
I hope it helps.
2.932789 rounded to the nearest hundredth
Please help me with this
Answer:
a) AB≅PQ, BC≅QR, CD≅RS, DE≅ST, EA≅TP
b) ∠A≅∠P, ∠B≅∠Q, ∠C≅∠R, ∠D≅∠S, ∠E≅∠T
c) rotated 45° CCW, reflected across a vertical line, translated
Step-by-step explanation:
The congruence relation can be written ...
ABCDE ≅ PQRST
a) Corresponding sides are ...
AB≅PQ, BC≅QR, CD≅RS, DE≅ST, EA≅TP
__
b) Corresponding angles are ...
∠A≅∠P, ∠B≅∠Q, ∠C≅∠R, ∠D≅∠S, ∠E≅∠T
__
c) ABCDE can be rotated 45° CCW, reflected across a vertical line, and translated to the position of PQRST.
Note: it looks like rotation about point D and reflection across the perpendicular bisector of DS would do the job without any additional translation.
Fred and Jimmy are brothers. Jimmys age is 5 more than twice the age of Fred. if the total of their ages is 23 years, how old is each one of them?
Answer:
Fred is 6
Jimmy is 17
Step-by-step explanation:
Jimmy's age =2x +5
Fred's age =x
x+2x+5=23
3x=23-5
3x=18
x=6
Jimmy's age =2(6)+5=17
Fred is 6
27.54 divided by 5.1
Answer:
5.4
Step-by-step explanation:
27.54 divided by 5.1 is simply 5.4
Answer:
5.4
Step-by-step explanation:
devide 27.54 to 5.1
you can use calculator so that its more easy to found out the answe
A telephone company offers service for a monthly fee of $35 in a charge of $.21 per minute of talking. If M represents the number of minutes a person talks in a month and C is the total monthly charge which of these is the correct relationship between M and C
Answer:
C = 35 + (0.21 × M)
Step-by-step explanation:
c = total Monthly charge
M = n of minutes.
Simplify the following expressions -18x2+3x-2x2+5 the first 2 is a small and the third 2 is small
Answer:
Step-by-step explanation:
well i think the answer is -32 but you did not explain the the small 2,ment so i am not 100% sure but good luck
Solve the formula A=12bh for h when A=90 and b=15. Write the answer in decimal form.
Answer:
Given,
A=90
b=15
A=12bh
Now,
Step-by-step explanation:
Put the given value in the formula
A=12bh
90=12*15*h
90=180h
90/180=h
Hence, h=0.5
At 4 p.m., the temperature started to change drastically. Each hour, for three hours, the temperature decreased by 7°F. Which word in the problem indicates that a negative integer should be used?
i need help with this pls
69. The O'Brien's had $400.0 in a special
checking account for installment payments.
After paying $40.00 a month for three months
and $20.00 a month for two months. How
much was left in the account?
Hello :D
$40.00 x 3 = $120.00
$20.00 x 2 = $40.00
$120.00 + $40.00 = $160.00
$400.00 - $160.00 = $240.00
There is $240.00 left in the account.
brainiest to whoever right
Step-by-step explanation:
Since the the two angles are complementary, then
[tex](3x + 2) + (5x - 14) = 90[/tex]
or
[tex]8x - 12 = 90 \Rightarrow 8x = 102[/tex]
[tex]x = 12.75[/tex]
so
[tex]\angle{YXZ} = 5(12.75) - 14 = 49.75°[/tex]
Please Hurry). Question: What is the value of x? (Will Mark Brainliest) Please only answer if you know it.
Answer:
111
Step-by-step explanation:
The sum for a 7-sided interior polygon is 900
126+158+120+125+121+139=789
900-789=111
Answer:
x = 111°
Step-by-step explanation:
x + 120+158+126+125+121+139= 900°
x + 789 = 900
x = 900 - 789
x = 111
The value of a car dropped from $23,600 to $21,900 over the last year. Determine the actual and relative change in this situation.
Actual Change: ? This car's value decreased by $
last year.
Round your answer to the nearest dollar.
Relative Change: ? This car's value decreased by
% last year.
Round your answer to the nearest tenth of a percent.
Answer:
The actual change in the car's value is $[tex]1700[/tex] and the relative change is [tex]7.20[/tex]%.
Step-by-step explanation:
It is given that the value of a car is dropped from $[tex]23600[/tex] to $[tex]21900[/tex].
So, the change in the value is the drop in the value of car, which is, [tex]23600-21900=1700[/tex].
So, the actual change in this car's value is $[tex]1700[/tex].
The relative change can be given by the expression,
[tex]\dfrac{\:\rm{Actual Change}}{\:\rm{Original Value}}\times100[/tex]
Substituting values, the relative change can be given by,
[tex]\begin{aligned}\dfrac{1700}{23600} \times 100&=\dfrac{1700}{236}\\&=7.20\end{aligned}[/tex]
five friends are sharing 2.5 pizzas. how much pizza does each person get?(will give branlist)for 10 points
Answer:
2 slices
Step-by-step explanation:
please mark brainliest
Don's clothing advertised a clothing sale. On the first day, all the clothing was marked 1/10 off. On the second day, unsold items were marked 2/5, the third day, 3/10 off, and so on.
Answer:
What is the question
Step-by-step explanation:
Tim had a balance of -5 in his bank account. After making a deposit. he has $40 in his account. What is the overall change in his account?
Answer:
$45 added
Step-by-step explanation:
-5 + x = $40
40 - (-50) = $45
Answer:the answer is $35
Step-by-step -5-$40=$35
Evaluate the expression when a=5 and b=4.
8a+b
Answer:
44
Step-by-step explanation:
Put in the terms.
8(5)+4
Multiply 8x5
40+4
Add
44
Answer:
44. if a = 5 and b = 4 then 8a = 8(5). 8(5) = 40. 40 + (4) = 44. hope this helps
Step-by-step explanation:
- Zombie
