Answers
Answer:
[tex]f( - 1) = - 2[/tex]
Step-by-step explanation:
[tex]f(x) = - {x}^{2} + x \\ f( - 1) = - {( - 1)}^{2} + ( - 1) \\ = - (1) + ( - 1) \\ = - 1 - 1 \\ f( - 1)= - 2[/tex]
I hope I helped you^_^
Related Questions
Write the word sentence as an inequality
6 times a number x is at most 47
Answers
Writing as a word sentence, the inequality is:
[tex]6x \leq 47[/tex]
6 times a number x is 6 multiplied by x, that is: [tex]6x[/tex].At most 47 means that it is less than, or equals, to 47, hence:[tex]6x \leq 47[/tex]
Hence, the desired inequality, from the given word sentence, is:
[tex]6x \leq 47[/tex]
A similar problem, in which a word sentence is written as an inequality, is given at https://brainly.com/question/11713066
The graph shows the amount of money you and a friend are saving for a camping trip.
You: 4 weeks 60 dollars. 8 weeks 120 dollars.
Friend: 2 weeks 40 dollars. 5 weeks 100 dollars
B) Find the slope of each line.
C) How much more money does your friend save each week than you?
D) The camping trip costs $165. How long well it take you to save enough money
Answers
A water tank in Stewart's
home had a small, steady
leak.
Loss of 1 3/5 mL in 10 min.
a. Use a complex fraction to
represent the change in the
volume of water in 1 minute.
___ milliliters
10 minutes
b. Simplify the complex fraction to find the change in the volume of water in the tank in 1 minute.
Answers
The change in the volume of water in 1 minute is a decrease of 0.16 milliliters.
Since a water tank in Stewart's home had a small, steady leak loss of 1 3/5 mL in 10 min, to find the change in the volume of water in 1 minute, the following calculation must be performed:
The total leak must be calculated and divided by the 10 minutes duration. 3/5 = 0.6 1 + 0.6 = 1.6 1.6 / 10 = 0.16
Therefore, the change in the volume of water in 1 minute is a decrease of 0.16 milliliters.
Learn more in https://brainly.com/question/19747831
Find the unit rate:
150 words read in 8 minutes
Answers
Step-by-step explanation:
the unit rate: 150/8 × 60 minutes =
1,125 words/hour
Answer:
18,75 word read/minutes
or :
1,125 word read/hour
Step-by-step explanation:
The unit rate :
= 150 words read : 8 minutes
= 150/1 words read : 8/1 minutes
= 150/1 × 1/8 word read/minutes
= 150/8 word read/minutes
= 18 6/8 word read/minutes
= 18 3/4 word read/minutes
= 18,75 word read/minutes
= 1,125 word read/hour
1) make q the subject of the formula 4(q+p)=5+7q
2) Make x the subject of the formula y=2a-bx^2
Answers
Answer:
1) [tex]q = \frac{4p}{3} -\frac{5}{3}[/tex]
2) [tex]x = \frac{\sqrt{b -y + 2a} }{b}[/tex]
Step-by-step explanation:
1) 4(q + p) = 5 + 7q
Multiply 4(q + p):
4q + 4p = 5 + 7q
4p - 5 = 7q - 4q
4p - 5 = 3q
[tex]\frac{4p}{3} - \frac{5}{3} = \frac{3q}{3}[/tex]
[tex]\frac{4p}{3} - \frac{5}{3} = q[/tex] or [tex]q = \frac{4p}{3} - \frac{5}{3}[/tex]
Fill in the function table: y = -2(x - 1)
please help
Answers
we first substitute the x
y= -2(-2-1)
=6
and then use a calculator to do the sum
which gives us 6
y= -2(-1-1)
= 4
y= -2(0-1)
=2
y= -2(1-1)
=0
y= -2(2-1)
=-2
CAN SOMEONE PLEASE HELP WITH QUESTIONS 3 THROUGH 11?? YOU DON’T EVEN HAVE TO DO ALL OF THEM JUST THE ONES U FEEL LIKE DOING (ILL MARK AS BRAINLIEST!!)
Answers
Answer:
3. 3/2
4. -1/3
5. -3.5
6. -6and 2/3
7. -18and 13/24
8. 1/18
9.-2.6
10.-1.83
11. 14.963
Step-by-step explanation:
HOPE THIS HELPS, if not see me in the comments
BRANILIEST PLZZZ
DOES ANYONE KNOW THIS ONE?
Answers
Answer:
no sorry
Step-by-step explanation:
Drag each label to the correct location.
Use what you’ve learned about proportional relationships to classify these equations as direct variation, inverse variation, or neither.
PLEASE HELPPP
Answers
Answer:
Step-by-step explanation:
what is 1+1-923422354x2x26757635
Answers
Answer: [tex]-4.9417197e+16[/tex]
Step-by-step explanation:
sin^2 x - 2sinx + 2 = sin^2 3x
Answers
Recall the triple angle identity for sine:
sin(3x) = 3 sin(x) cos²(x) - sin³(x)
… = 3 sin(x) (1 - sin²(x)) - sin³(x)
… = 3 sin(x) - 4 sin³(x)
So the equation is equivalent to
sin²(x) - 2 sin(x) + 2 = sin²(3x)
sin²(x) - 2 sin(x) + 2 = (3 sin(x) - 4 sin³(x))²
sin²(x) - 2 sin(x) + 2 = 9 sin²(x) - 24 sin⁴(x) + 16 sin⁶(x)
16 sin⁶(x) - 24 sin⁴(x) + 8 sin²(x) + 2 sin(x) - 2 = 0
or, by replacing y = sin(x),
16y ⁶ - 24y ⁴ + 8y ² + 2y - 2 = 0
By inspection, y = 1 is a root, since
16 - 24 + 8 + 2 - 2 = 0
so we get one family of solutions,
sin(x) = 1 ===> x = arcsin(1) + 2nπ = π/2 + 2nπ
Now suppose y ≠ 1. Dividing both sides of the sextic equation by y - 1 then gives
(16y ⁶ - 24y ⁴ + 8y ² + 2y - 2)/(y - 1) = 0
16y ⁵ + 16y ⁴ - 8y ³ - 8y ² + 2 = 0
Unfortunately, the remaining roots can only be obtained through numerical methods. Using a calculator, you would find
y ≈ -1.127
y ≈ -0.475 ± 0.368i
y ≈ 0.539 ± 0.127i
But if you're solving over the reals, you can ignore these solutions. Remember that sin(x) is bounded between -1 and 1, and its value goes outside this interval only when x is complex.
what is 4-1/4 help please
Answers
Answer:
3 3/4
Step-by-step explanation:
Because 1 = 4/4
then 4 = 12/4
then you take away 1/4
And get 11/4
Then you Turn that into a mixed number
And get 3 3/4
Decimal form is 3.75
Answer:
15/4 alternate answers - 3 3/4 or 3.75
that's what I got
Triangle ABC is shown. What value of x will prove that Triangle ABC is a right triangle?
Answers
In the given triangle ABC in the figure, the value obtained for x will be equal to 6.
What is a triangle?The basic polygonal shape of a triangle has three sides & three interior angles. This is one of the fundamental shapes in geometry and is particularly associated. It has three connected vertices. Triangles can be divided into a variety of categories according to their sides and angles.
As per the given information in the question,
Use the equation of Pythagoras' theorem,
h² = p² + b²
(2x - 2)² = x² + (x - 2)²
4x² - 2(2x)(2) + 4 = x² + x² + 4 + 4x
4x² - 8x + 4 = 2x² + 4x + 4
4x² - 2x² - 8x - 4x + 4 - 4 = 0
2x² - 12x = 0
2x² - 12x = 0
2x(x - 6) = 0
So,
2x = 0
⇒ x = 0, it is not possible.
Or,
x - 6 = 0
x = 6
To know more about Triangle:
https://brainly.com/question/2773823
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The given question is incomplete, the complete question might be in the attachment.
Help on this please will make brainliest
Answers
Answer:
help on what?
Step-by-step explanation:
Answer:
You need to post a question or a screenshot of the question so someone can help you!
me need a lot of help
Answers
I hope you have a good day!
Plot each pair of points in the Cartesian plane and solve for the distance between them. Write your answer on a separate one whole graph paper. ( 15 points) 1. A(0,8) and B(5,5) 2. C(3, 1) and D(0,-2) 3. EC -6,3) and F(-6,-2)
Answers
Answer:
hame naghi ahta
Step-by-step explanation:
solve the pattern:
15, 17, 32, 49, 81 __ __ ← those are the blank spaces.
Answers
Answer:
130 and 211
Step-by-step explanation:
15+17= 32
17+32=49
32+49=81
49+81=130
81+130=211
Answer:
130 and 211
Step-by-step explanation:
15,17,32,49,81 _ _
15+2=17+15=32+17=49+32=81
that mean 81+ 49=130
and 81+130= 211
Hence, the answer is 130 and 211.
sin^2020(x)+cos^2020(x)=1
Answers
Answer:
so this is really simpel x=1 thats it
Step-by-step explanation:\sin ^2\left(20^{\circ \:}\right)\left(x\right)+\cos ^2\left(20^{\circ \:}\right)\left(x\right)=1 \sin ^2\left(20^{\circ \:}\right)x+\cos ^2\left(20^{\circ \:}\right)x=1
Find the value of x.
Answers
Answer:
-5
Step-by-step explanation:
hope it works out for you
The coordinates of the vertices of triangle 1 are A(6,6), B(12.9), C(9,6).
The coordinates of the vertices of triangle 2 are A (2,2), B’ (4.3). C° (3,2).
What transformation was performed on triangle 1 to create triangle 2?
Translation
Reflection across the x-axis
Reflection across the y-axis
Dilation
Answers
Answer:
Step-by-step explanation:
What is 241m as a fraction of 5.4km
Answers
Answer:
i think 223/499
Step-by-step explanation:
Evaluate |bcl. given a = 5, b= -3, and c= -2.
O -6
O -5
O 5
O 6
Answers
Answer:
6
Step-by-step explanation:
(-3)(-2) is 6 because if you multiply two negatives it equals a positive, and the absolute value of 6 is 6.
Answer:
6
Step-by-step explanation:
abs(bc)=abs(-3*-2)=abs(6)=6
There are 20 black, 15 white, 12 green, 12 red, 9 blue, and 2 yellow candies in a box. How many candies should you take (without looking at them) to be sure that you have at least 3 candies the same color?
Answers
Answer:
All of them lol.
Step-by-step explanation:
If you take all of them, you have a 100% chance at getting at LEAST 3 candies of the same color.
How many tons are equal to 54,000 pounds?
Answers
Answer:
I think About 27 short ton
Jack had to get three more pails of water than Jill did. The product of the number of
pails they had to get was 40. How many pails of water did Jill have to get?
Answers
Answer:
Impossible?
Step-by-step explanation:
Answer:
5 pails
because jack has 5 pail and he must get 3 more pail to times 5 and get 40
I NEED THE RIGHT ANSWER ASAP NO LINKS!!!
Answers
Answer:
the answer is 21.8
Substitute the value of the variable into the equation and simplify.
1.9+9 = 10.9. Then since it was parentheses it will go back to: 2(10.9). If any number is in parentheses and doesn’t have a plus or minus sign in-front of it, then you multiply, So 2 times 10.9= 21.8.
Thus, If x= 1.9, Then 2(x+9)= 21.8.
Hope this helps!
please help me solve for X
Answers
Answer:
-7
Step-by-step explanation:
x= 180-90-70-27
x= -7
What is the scale factor from Figure A to Figure B?
Answers
Answer:
1/3Step-by-step explanation:
The figure B is the scaled copy of the figure A.
The both figures are similar to each other.
The scale factor is the ratio of corresponding sides of figure B to A:
k = 3/9 = 1/3or
k = 1.2/3.6 = 1/3On figure A sides are.
9,3.6On figure B sides are.
3,1.2Scale factor[tex]\sf\longmapsto k=\dfrac{3}{9}=\dfrac{1.2}{3.6}=\dfrac{1}{3}[/tex]
At a pet store the ratio of cats to dogs sold was 6 : 5. If there were 12 cats that were sold, how many dogs were sold?
Answers
Which means for every 6 cats sold 5 dogs are sold.
Is 12 cats are sold: 6*2=12
Because we multiply the number of cats sold by 2 we do the same for dogs:
5*2=10.
So, if 12 cats are sold then 10 dogs are sold.
The answer is 10.
Hope this helped.
Which statement is TRUE?
Answers
Answer:
it is a or d
Step-by-step explanation:
