Answer:
f has no critical points.
Step-by-step explanation:
We are given:
[tex]f(x)=\cos(x)+2x[/tex]
A function has critical points whenever its derivative equals 0 or is undefined.
Differentiate the function:
[tex]f'(x)=-\sin(x)+2[/tex]
Since this will never be undefined, solve for its zeros:
[tex]0=-\sin(x)+2[/tex]
Hence:
[tex]\displaystyle \sin(x)=2[/tex]
Recall that the value of sine is always between -1 and 1.
Thus, no real solutions exist.
Therefore, f has no critical points.
between which two consecutive numbers does the square root below lie ?
[tex] - \sqrt{128} [/tex]
Answer:
where is the second one?
Step-by-step explanation:
Find x
A: 11.2
B: 13.1
C: 9.2
D: 22.9
Hi there!
[tex] \large{tan35\degree = \frac{x}{16} }[/tex]
We can also use the other angle but I will focus on 35°.
The reason why we use the equation above because tan is equivalent to opposite/adjacent
From the picture, the opposite is x-term while the adjacent is 16 if we focus angle 35°.
Define theta = 35°. Thus, the equation would be tan35° = x/16.
Solving the equation, you might want to bring open Trigonometric Table or a calculator to calculate tan35°. You should get 0.7 (rounded)
[tex] \large{0.7 = \frac{x}{16} }[/tex]
Then solve the equation for x-term.
[tex] \large{0.7 \times 16 = x} \\ \large{x = 11.2}[/tex]
Hence, the value of x is 11.2
Answer
11.2Questions about the problem be asked through comment.
Furthermore, you can also use the other angle. If we use 55° instead, the equation would be tan55° = 16/x. The outcome would be the same.
Hope this helps, and Happy Learning! :)
It was 7 °F outside. The temperature dropped 16º.
How cold did it get?
A. -23 °F
B. -16 °F
C. -9°F
D. 9°F
E. 23 °F
Help ASAP pls help me I need help like ASAP im being timed
Answer:
115
Step-by-step explanation:
Answer:
155
Step-by-step explanation:
Have a good day :)
Unit 4: Systems of Equations
One week, Carlos bought 6 dog treats and 4
cat treats for $42. The next week, he bought 2
dog treats and 7 cat treats for $31.
Create an algebraic representation of the
situation above.
How many does each dog tre at cost?
How much does each cat treat cost?
Answer:
$5 for a dog treat
$3 for a cat treat
Step-by-step explanation:
week 1: 6d + 4c = 42
week 2: 2d + 7c = 31
*used calculator & guessed what each treat costs*
WEEK 1:
6(5) + 4(3) = 42
30 + 12 = 42
42 = 42
WEEK 2:
2(5) + 7(3) = 31
10 + 21 = 31
31 = 31
Pls hurry
Rafael writes an expression to represent "a number, n, decreased by thirty-one." Then he evaluates that expression if
n-29. Which statements are true about the expression and its evaluation? Check all that apply.
The correct expression is 31-n.
This is a subtraction expression.
This is an addition expression.
To evaluate, substitute 29 for the variable in the expression.
To evaluate, substitute 31 for the variable in the equation.
To evaluate the expression, add 31 to 29.
The correct expression is n-31.
To evaluate the expression, subtract 31 from 29.
Step-by-step explanation:
To evaluate, substitute 29 for the variable in the expression.
To evaluate, substitute 31 for the variable in the equation.
To evaluate the expression, add 31 to 29.
The correct expression is n-31.
To evaluate the expression, subtract 31 from 29Pls hurry
Rafael writes an expression to represent "a number, n, decreased by thirty-one." Then he evaluates that expression if
n-29. Which statements are true about the expression and its evaluation? Check all that apply.
The correct expression is 31-n.
This is a subtraction expression.
This is an addition expression.
To evaluate, substitute 29 for the variable in the expression.
To evaluate, substitute 31 for the variable in the equation.
To evaluate the expression, add 31 to 29.
The correct expression is n-31.
To evaluate the expression, subtract 31 from 29..
A hockey goalie got shot on 18 times . She saved 10 of the shots . Which ratio represents the amount of shots that went in to the amount of shots she saved ?
========================================================
Explanation:
She saved 10 shots out of 18 total, so that means 18-10 = 8 shots went in.
That forms the ratio 8:10 where we list the amount of shots that went in, followed by a colon, then the amount of shots that were saved. The order is important. From here, we divide both parts of the ratio by 2. The ratio 8:10 fully reduces to 4:5
Effectively, this means that for every 4 shots that went in, there were 5 shots that were blocked.
Which angle has its terminal side on the negative x-axis?
Answer:
π radians
Step-by-step explanation:
*view photo*
The school has two separate buildings, one is shaped
like a triangle and the other a rhombus. The base of
the triangle is 100 meters and the height is 150
meters, what is the area? The rhombus is a kite shape
with one diagonal 50 meters and the other 40 meters,
what is the area?
Answer:
250 = triangle
90 = rhombus
(i think, its all i know)
Step-by-step explanation:
just use 1/2 x b x h for triangles
and A = l x w for rectangles
The diagram shows two rectangles which have the same area . Find the value of y.
Answer:
y = 4
Step-by-step explanation:
Since the 2 rectangles have the same area, then
12.5 × 2y = 5 × 20
25y = 100 ( divide both sides by 25 )
y = 4
Saima can blow 15balloons in 20 min sara can blow 18 balloons in 25 minutes ahamd can blow 16 balloons in 21 minutes bilal can blow 12 ballons in 23 min who can blow balloons at fastest rate
Answer:
so its means that ahmad can blow balloons at fastest rate...
Step-by-step explanation:
Saima:
15b = 20min
1 b = 1 min 20sec
Sarah;
18b = 25min
1 b = 1 min 23sec
ahmad;
16b = 21min
1 b = 1 min 19sec
Bilal;
12b = 23min
1 b = 1 min 55 sec
HOPE ITS HELPSS......
Victoria is designing an image to be projected onto a screen. Her design is shown
below.
Victoria's Design
What is the total area, in square centimeters,
of Victoria's design?
8 cm
4 cm
4 cm
4 cm
10 cm
14 cm
146 centimeters squared
188 centimeters squared
118 centimeters squared
Answer:
13 ug
Step-by-step explanation:
Victoria is designing an image to be projected onto a screen. Her design is shown
below.
Victoria's Design
What is the total area, in square centimeters,
of Victoria's design?
8 cm
4 cm
4 cm
4 cm
10 cm
14 cm
146 centimeters squared
188 centimeters squared
118 centimeters squared
The elevation at ground level is 0 feet. An elevator starts 90 feet below ground level. After traveling for 15 seconds, the elevator is 20 feet below ground level. Did the elevator travel up or down? What was the speed (in ft per second) of the elevator in the 15 second interval?
This is due at 8am tomorrow please help me
Connie is 4 years younger than Max. Max is twice as old as Tom. If Tom is t years old, how old is Connie in terms of t?
Answer:
8t
Step-by-step explanation:
c = 4m
m = 2t
c = 4(2t) = 8t
Answer:
2t-4
Step-by-step explanation:
Tom: t.
Max is twice as old as Tom - 2t.
Connie is 4 years younger than Max - 2t-4.
So, Connie is 2t-4 years.
Please mark me as brainliest if you like the answer! :)
what is the area of a triangle with base 18cm and height 4cm
Answer: The area of the triangle would be “36cm^2”
Explanation: To find the area of a triangle you multiply the height and base and divide it by 2 so it would look like this 18 x 4 = 72 then 72/2 which is 36cm^2.
Have a nice day!
Answer:
Area=36
Step-by-step explanation:
18x4=72
72/2=36
Find the area of the triangle.
(Please help)
Answer:
That is one big M
Step-by-step explanation:
Other than that I cannot help with this question because of the picture that was taken was enlarged too much!
Answer:
I can't see the numbers
Step-by-step explanation:
I can't see the numbers for me to find the area can you pull back the camera back then take another picture .
I NEED HELP PLSS ITS LIKE 200 POINTS
Answer:
y=-3/2x+3
Step-by-step explanation:
(0,3) and (2,0) tell us that the y intercept is 3 because at x = 0, y = 3.
This leaves the first and last choice only.
We can calculate the slope by 0-3 and 2-0, so -3/2 is the slope
Robbert wants to put lights around the edge of his yard.The yard if 40 feet long and 23 feet wide.How many yards of light does he need
Answer:
102.222 square yards of light.
Step-by-step explanation:
From the above question, the yard had the dimensions 40 feet long and 23 feet wide.
Hence, the yard is rectangular in shape.
We have to find the area of the yard.
The formula is given as:
Area = Length × Width
= 40 feet × 23 feet
= 920 square feet
Converting to yards
1 square foot = 0.111 square yard
920 square feet = x
Cross Multiply
x = 920 × 0.111 square yard
x = 102.222 square yards.
Therefore, Robbert would need 102.222 square yards of light.
Evaluate if a =4&b= 7
28 + b +7
Plss help
Answer:
a=4
Step-by-step explanation:
pls give me harts thank u!
what is 2/8 divided by 3/4
Answer:
1/3
Step-by-step explanation:
2/8 ÷ 3/4
Copy dot flip
2/8 * 4/3
Simplify
2*4 / (8*3)
8/24
1/3
Answer:
0.333333333333 should be the answer, hope this helps!
Find five rational numbers between 3/5 and 4/5
Answer: 19/30, 20/30, 21/30, 22/30, 23/30.
What is 45 quarts= ___ pounds
Answer:
93.8858 pounds
How to convert:
1 pound (lb) = 0.479305709 quart (qt). Pound (lb) is a unit of Weight used in Standard system. Quart (qt) is a unit of Volume used in Cooking system. Please note this is weight to volume conversion, this conversion is valid only for pure water at temperature 4 °C.
1 US qt = 0.946352946 liters = 0.946352946 kg of pure water at temperature 4 °C.
US oz = 28.349523125 g
US fl oz = 29.5735295625 ml (milliliters) = 29.5735295625 g (grams) of pure water at temperature 4 °C.
US cup = 8 fl oz = 236.5882365 ml (milliliters) = 236.5882365 g (grams) of pure water at temperature 4 °C.
The US liquid quart equals to 0.946352946 liters.
Answer:
45 quarts is equal to exactly 93.8858 pounds.
Step-by-step explanation:
1 quart (qt) = 2.086351113 pound (lb).
Multiply 2.086351113 pounds by 45 to get your answer.
What is the median of this data set?
{3, 5, 7, 8, 8, 9, 10, 10, 10, 11, 12, 15}
Answer:
Hi, there your answer is 9.5
Median=10
9 + 10 = 19
19 ÷ 2 = 9.5
Step-by-step explanation:
Sorry my bad I forgot to add and divide
Answer:
The median would be 9.5
Step-by-step explanation:
To find our answer we will first put them in numerical order:
3, 5, 7, 8, 8, 9, 10, 10, 10, 11, 12, 15
Now that we have the numbers in order, we will find the middle numbers. Since the middle numbers are 9 and 10, we will add them both and divide them by 2.
9 + 10 = 19
19 ÷ 2 = 9.5
Therefore 9.5 is our answer!
what is the angle from x
Answer:
133° because vertically opposite angles are equal!
Hope this helped!
SOMEONE!!!
QUESTION: What is the measure of each angle in a regular polygon with 6 sides?
Answer:
polygon do all the number times each outher divided in half then times 6 for the hight and langht
Step-by-step explanation:
#1 How much will the seed cost to seed the grass area above? The seed
costs $23 for a 10 lbs bag that covers 12 feet with a 9% sales tax. *
Answer:
Step-by-step explanation:
please help!!! i will mark brainliest!!
Answer:
A. 96
C. 48
D. 24
Step-by-step explanation:
Multiples of 8
8 = 8, 16, 24, 32, 40, 48, 56, and 64, 72, 80, 88, 96, 104,.......
Multiples of 12
12 = 12, 24, 36, 48, 60, 72, 84, 96, 108,........
Common multiples of 8 and 12 = 24, 48, 72 and 96
The correct answers are:
A. 96
C. 48
D. 24
please help i will give an extra 40 if you do
Answer:
area of the right triangle=1/2×7×5
=17.5 square feet
An aquarium is 8 feet long, 5 feet wide, and 3.4 feet deep. What is the volume of the tank?
Answer:8x5x3.4= 132 feet squared
Step-by-step explanation:
when did the united states get it independence
Answer:
4th July 1776
Step-by-step explanation:
4th July is marked as independence day