f(x) = 2x2 + 4x - 1. Find f(3).
Answers
Answer:
f(3)=15
Step-by-step explanation:
plug 3 in for x
f(3)=(4)+(12)-1=
16-1=
15
Related Questions
The point P(-6, -6) is reflected over the x-axis. What are the coordinates of the resulting
point, P?
Answers
Answer:
It would be (6,-6)
Step-by-step explanation:
Hope this helps.
Subtract 512 to get to 256
Answers
Answer:
768
Step-by-step explanation:
Answer:
Step-by-step explanation:
The other number is 768
If we subtract 512 from 768 the answer is 256
The rope was coiled into circular
loops about 30 inches in diameter.
To the nearest foot, each loop of rope
was about how many feet long?
Answers
Answer:
94.25 or 94
Step-by-step explanation:
I think this question is asking for the circumference .
The length of each loop of rope is about 8 feet when the rope was coiled into circular loops of about 30 inches in diameter.
To find the length of the rope in each circular loop, we need to calculate the circumference of the circle. The circumference is the distance around the circle and can be calculated using the formula:
Circumference = π * Diameter
Diameter = 30 inches
To find the length in feet, we need to convert the inches to feet. Since there are 12 inches in a foot, we divide the diameter by 12:
Diameter in feet = 30 inches / 12 inches/foot = 2.5 feet
Now, we can calculate the circumference:
Circumference = π * Diameter
Circumference = π * 2.5 feet
To find the approximate length in feet, we need to use an approximation for π. Let's assume π ≈ 3.14:
Circumference ≈ 3.14 * 2.5 feet
Circumference ≈ 7.85 feet
To the nearest foot, the length of each loop of rope is about 8 feet.
To know more about length click here :
https://brainly.com/question/26678811
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need help in math plz
Answers
Answer:
Reflection
Step-by-step explanation:
Reflecting it across the origin will give you the other one.
Please help with the question on the picture
Answers
Answer:
c) = (-180)
d) = (-81)
this is the answer that is to be written in the boxes
help i need help again fast
Answers
Answer:
donkey kong
Step-by-step explanation:
ssasdasdasdasdasdasda
Answer:
its c
Step-by-step explanation:
Which ones are correct will give brainlist!!
Answers
Answer:
A and C and E
Step-by-step explanation:
All these answers are true because the line is always constant, the slope is going down so therefore negative, and the equation is correct because you can fill in any value and they would be correct.
40.8-10 to the power of 2
Answers
Answer:
-4
Step-by-step explanation:
8-10 = -2
-2^2 = -4
948.64
Subtract then multiply by itself
No offense but can't you use a calculator?
A metal pipe is 33 3 /4 inches long. If you cut the pipe into pieces that are each 3 3 /4 inches long, how many total pieces will you have?
Answers
We have to deal with each rod since they are not combined.
24/(15/4) = 24(4/15) = 32/5 = 6 2/5
The 2/5 is waste.
6(32) = 192 pieces
Work out the surface area of this cylinder.
Diameter = 7 cm
Height = 12 cm
Answers
Answer: A≈340.86cm²
Step-by-step explanation:
Solve the equation below for x in terms of a 4(ax+3)-3ax=25+3a
Answers
Answer:
x = (13 + 3a) / a
Step-by-step explanation:
Given equation:
4(ax+3) - 3ax = 25 + 3a
Open parenthesis
4ax + 12 - 3ax = 25 + 3a
Collect like terms
4ax - 3ax = 25 + 3a - 12
Simplify
ax = 13 + 3a
x = (13 + 3a) / a
4(ax+3) - 3ax = 25 + 3a is equivalent to x = (13 + 3a) / a
The nth term of a sequence is 2n2 − 1 The nth term of a different sequence is 40 − n2 Show that there is only one number that is in both of these sequences.
Answers
Answer:
Step-by-step explanation:
nth term of a sequence = 2n² - 1
Therefore, terms of the sequence will be,
1, 7, 17, 31, 49, ........... n terms
nth term of a different sequence = 40 - n²
Therefore, terms of the sequence will be,
39, 36, 31, 24, 15, 4, -9, -24 .......... n terms
Since, there is no negative number in the first sequence,
Therefore, out of 6 positive terms of second sequence only one number (31) is common in both the sequences.
Help will make branliest
Answers
Answer:
I like that you watch wwe for one. but lets get started
the answer itself is m< 4=87
Step-by-step explanation:
Answer:
The answer is 87°
Step-by-step explanation:
A quadrilateral has an interior angle sum of 360°.
Given that three of the four angles in a quadrilateral are 89°, 80°, and 104°, we can create the following equation where x is the missing angle:
89° + 80° + 104° + x° = 360°.
All you have to do is add all the measures up and subtract from 360°.
89° + 80° + 104° + x° = 360° →
273° + x° = 360° →
x° = 87°.
Also, for any polygon, the interior angle sum is (n – 2) × 180°, where n is the number of sides.
A quadrilateral is a polygon with four sides so it's interior angle sum must be
(4 – 2) × 180° = 2 × 180° = 360°.
PLEASE ILL GIVE 15 POINTS AND BRAINLIEST
A tile pattern on a wall is made up of two identical parallelograms and three identical triangles.
What is the area of the tile pattern?
Answers
Answer: 180
Step-by-step explanation:
Answer: 448 inches, I’m pretty sure hope it helps
1 Ft = 12 in ? Need help
Answers
hello! I need help with this question.
Answers
Answer:
177
Step-by-step explanation:
Adults: 11 x $8 = 88
Children: 17 x $4 = 68
Pensioners: 3 x $7 = 21
88 + 68 + 21 = 177
f(3) = 3x² +b For the function, f, defined above, f(4) = 49. What is the value of b?
Answers
Answer: 5.4~
Step-by-step explanation:
For the problem F(3) = 3x^2 +b, you have to first figure out what F(3) is and in this case it is 49, so now you have part of the question solved. Then you start working on the other side of the equation 3x^2 +b = 49, we don't know what x is so lets figure it out, by that you need to do 3x^2, the equals 9. So, so far we have the equation 49 = 9x +b. Now we need to get rid of the x on the 9, having a variable is considered multiplying so you need to divide 9 by 9, but remember what you do to one side you have to do to the other, so now you have to divide 49 by 9 and you get 5.444444444. Now the equation is b=5.4~ meaning that b is around 5.4, I hope this helps.
Simplify by expressing with radicals. ^6radical x^2 y^6
Answers
Help me? Giving brainliest
Answers
Answer:
31
Step-by-step explanation:
(2)^2 + (3)^3 = 4+27 = 31
Answer:
13
Step-by-step explanation:
2^2+3^3
=4+9
=13
What number replaces ☺ to make the sentence true? 1 + 3 + 4 + 6 + 6 + 8 + 9 + 11 = 4 × ☺.
Answers
Answer:
12
Step-by-step explanation:
The elevation we call sea level is actually the average level of the sea. This means that at average sea level, the elevation is zero. In reality, the level of the sea rises and falls in what are called tides. Low tide is the point of lowest sea level in a tidal period. High tide is the point of highest sea level in a tidal period. The height above or below average sea level is called elevation. An elevation below sea level is considered a negative value, while an elevation above sea level is positive.
Winston lives near the ocean. He regularly brings an altimeter to the beach to measure the elevation of the ocean’s surface. You will use the data Winston gathered to complete tasks about the rising and falling of the ocean’s surface. When necessary, sketch a diagram of the situation on a separate sheet of paper to assist you.
On Monday at 1pm, when the ocean’s surface was at an elevation of 2.2 feet, Winston went to a surf shop that was 8.2 feet above the ocean’s surface. At 7 p.m. when the ocean’s surface was at an elevation of -2.4 feet, Winston ate dinner at a restaurant whose deck was 10 feet above the ocean’s surface.
What was the net change in the elevation of the ocean’s surface from 1 p.m. to 7 p.m.?
Answers
Answer:
-4.6 ft
Step-by-step explanation:
The question is asking for the net change in the ocean's surface elevation, so we can ignore the parts of the question that mention his own elevation at the time of the measuring. We can see at 1, the elevation was 2.2, and at 7, the elevation was -2.4. The net change is the whole change over the period of time, so we just need to find the difference between the two. Adding them together gives you the distance from each elevation the sea's surface was, which is -4.6 ft as the elevation decreased
If a game player scored a 27 on the first game and a 39 on the second game, which number statement can be used to find what the player needs to score on the third game (S) to have a
mean (average) score of 36?
A. 27 +39+ S3 = 36
B. 363 = 27 +39 + S
C. (36 + 3) + S +27 +39
D. (27 +39 + S) + 3 = 36
Answers
Answer:D
Step-by-step explanation:
Answer: none of them are right...
Step-by-step explanation:
(27 + 39 + S)/3 = 36
27 + 39 + S = 36(3)
27 + 39 + S = 108
S = 108 - 39 - 27
S = 42
To find the measurement of any of the acute angles, which of the following trigonometric ratios should be used?
Answers
Answer:
your answer
Step-by-step explanation:
c,b and ac
Find the missing values in the ratio table.
Answers
Answer:
ok i cant tell if the dot is a decimal or a spot, im thinking its just a spot
so the answer would be 8:2 4:1 2:0.5
Step-by-step explanation:
if it is a decimal
the first box would be 8:0.2
Mark often buys lunch at the deli next to his work. Lunch at the deli costs $7.50. Mark sets aside $150 for lunches at the deli at the beginning of the month. Which equation describes how much money, y, Mark has after eating lunch at the deli x times during the month?
Answers
Answer:
y = 150 - 7.50x
Step-by-step explanation:
Given that:
Cost per lunch = 7.50
Amoint budgeted for lunch = $150
The equation which models the amount of money, y Mark has after eating x times at the Deli
Amount left = Amount budgeted for lunch - (cost per lunch * number of lunch eaten)
y = $150 - ($7.50 * x)
y = 150 - 7.50x
Solve the inequality 2x + 10 < 5x + 1
Answers
⇢ 2x + 10 < 5x + 1
⇢ 2x < 5x + 1 - 10
⇢ 2x < 5x - 9
⇢ 2x - 5x < - 9
⇢ - 3x < - 9
⇢ 3x < 9
⇢ x < 9/3
⇢ x < 3
Hence, solution is x < 3.
Mai bought gas for her car.
Gas cost $2.95 per gallon
Mai bought 8.2 gallons
What was the total cost for Mai's gas?
Express the answer as dollars.cents.
Only 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, . , -, and / are allowed in your answer.
Answers that are mixed numbers must be entered as an improper fraction or decimal.
Answers
WHY are my cheeks so big and juicy what do I do
Answers
Answer:
Ask for a refund. Those fake buttox's aren't right for you,
Step-by-step explanation:
Answer:
You are Theodore from Alvin and the chipmunks, You can use them to store food
Step-by-step explanation:
ok
How to solve this question I am stuck
please help
Answers
Answer:
x=3
Step-by-step explanation:
WY is an angle bisector, which makes both sides equivalent (it’s an isosceles triangle)
PLS HELP I'LL MARK BRAINLEST
Answers
Answer:
a
Step-by-step explanation:
180-50
Hey there!
Hope this helps!
x=130