How can you find f(2) if f(x)=−3x2−7?
Answers
Step-by-step explanation:
F(2)=3(2)²-7
=5
................
Answer:
Square 2. Multiply the result by -3, and then subtract 7.
Step-by-step explanation:
The answer is basically the explanation of the answer. You want to replace x with 2 then square it. You will have 4. Multiply 4 by -3 and you will have -12 then subtract it by 7 and you'll get the answer to f(x). The answer is the steps. Not the 'answer' answer. Hope this helps! (I did this question, and I got it right.)
Related Questions
Which statement is true about point F? a.F is the midpoint of AA' because bisects AA'. b.F is the midpoint of EG because AA' bisects EG. c.F is the midpoint of AA' because AA' bisects EG. d.F is the midpoint of EG because bisects AA'.
Answers
Answer:
The correct option is;
a. F is the midpoint of [tex]\overline{AA'}[/tex] because line [tex]\overline{EG}[/tex] bisects [tex]\overline{AA'}[/tex]
Step-by-step explanation:
Here, since we have that the triangle is reflected across EG therefore the location of the point F which is along EG bisects the line [tex]\overline{AA'}[/tex] as the dimensions of the line from A to F must be equal to the dimension of the line that extends from A' to F
Therefore the point F is the midpoint of [tex]\overline{AA'}[/tex] because line [tex]\overline{EG}[/tex] bisects [tex]\overline{AA'}[/tex].
Answer:
A
Step-by-step explanation: i got it right on edge
The circus returned home and the animal trainers friend asked how many lions were on the train. The trainer answer "7 times as many lions than other animals (not lions). Then the friend asked about the bears." there were a seventh as many bears as other animals", replied the trainer. Then the friend asked about the elephants. How should the trainer respond to the question?
Answers
Answer:
Step-by-step explanation:
Solution:-
- We will denote:
Number of Lions = x
Number of bears = y
Number of elephants = z
Any other animal = T
- Now we will mathematically each statement given by the trainer.
Statement 1:
"7 times as many lions than other animals (not lions)."
- There were 7 times as many lions than any other animals i.e ( bears and elephants). So we can express:
x = 7*( x + y + T) .... E 1
Statement 2:
"there were a seventh as many bears as other animals"
- There were 1/7 as many bears than any other animals i.e ( lions and elephants). So we can express:
y = (x+z+T) / 7 ... E2
- Now combine two decrypted mathematical expressions.
x + y + z = T
7T + T/7 + z = T
The width of a rectangular rug is 6 feet if the perimeter is 24 feet what is the area of the rug?
Answers
Answer:
36 feet squared
Step-by-step explanation:
Finding the perimeter of an object is adding all of the sides together. If the width of the rug is 6 feet then we know that there are two sides that length. Add those together.
6 feet + 6 feet = 12 feet
You would subtract the number you get from the perimeter.
24 feet - 12 feet = 12 feet
And then divide the number by the number of sides left, 2, to get each of their lengths.
12 feet / 2 feet = 6 feet
To find the area of a rectangle you multiply length times width, which in this case both are 6 feets.
6 feet x 6 feet = 36 feet squared
How would you write twelve more than the quotient of a number and five
Answers
Answer:
n/5 +12
Step-by-step explanation:
A flagpole broke in a storm. It was originally 81 feet tall. 28 feet are still sticking straight out of the ground, where it snap, but the remaining piece has hinged over and touch the
Answers
Answer:
45ft
Step-by-step explanation:
The remaining piece has to be found. How far away is the end of the pole from the base of the pole along the ground.
We deduct original to broken 81-28 = 53 feet tall.
PT + to find the other side.
53^2 - 28^2 = S^2
√2025 = 45 = S^2
S^2 = 45ft
Simplify: 27 : 54 : 9
Answers
Answer:
3 : 6 : 1
Step-by-step explanation:
The common multiple between these numbers is 9, so divide everything by nine.
Answer:
3:6:1
Step-by-step explanation:
27/9=3
54/9=6
9/9=1
3:6:1
I hope this helps!
After 5 years, a $2,450 investment is worth $3,123.75.
What is the simple annual interest rate for this investment?
Answers
Answer:
5.5%
Step-by-step explanation:
To solve this problem we can use a modified version of the simple interest formula which is shown below:
[tex]r=\frac{I}{Pt}[/tex]
I = interest amount
P = principal amount
t = time (years)
The first step is to find the interest gained from the investment.
[tex]3,123.75-2,450=673.75[/tex]
Next, plug in the values into the equation:
[tex]r=\frac{673.75}{(2,450)(5)}[/tex] Multiply the bottom values
[tex]r=\frac{673.75}{12,550}[/tex] Divide the values
[tex]r=.055[/tex]
The last step is to convert 0.055 into a percent:
[tex]0.055(100)=5.5[/tex]
The interest rate is 5.5%
Kaytlyn must build a sand castle in the form of a square pyramid for a project as shown to the left. She bought 3 bags of sand each containing 1200 inches cubed. Will she save enough sand to build the castle?
Answers
Answer:
see the explanation
Step-by-step explanation:
The complete question is
The dimensions of the square pyramid are
Base: 40 inches
Height: 12 inches
step 1
Find the volume of the square pyramid
The volume of the square Pyramid is given by the formula
[tex]V=\frac{1}{3}b^2h[/tex]
where
b is the length side of the square base
h is the height of the pyramid
we have
[tex]b=40\ in\\h=12\ in[/tex]
substitute
[tex]V=\frac{1}{3}(40)^2(12)[/tex]
[tex]V=6,400\ in^3[/tex]
step 2
Find the volume of sand
Multiply the number of bags of sand by the volume of each bag
so
[tex]3(1,200)=3,600\ in^3[/tex]
step 3
Compare the volume of the sand with the volume of the square pyramid
3,600 < 6,400
therefore
Kaytlyn has not enough sand to build the castle
Cement was poured to make two rectangular prism the prism were stacked as shown 4 feet 3 feet 4 feet 3 feet 2 feet what are lengths , width, height in feet of the smaller rectangular prism
Answers
Final answer:
Solving the proportions, we find that the lengths, width, and height of the smaller prism are 3 feet, 2 feet, and 3 feet respectively.
Explanation:
Given:
Lengths of the larger prism: 4 feet, 3 feet, 4 feet
Dimensions of the stacked prisms: 4 feet, 3 feet, 2 feet
Let: The lengths, widths, and heights of the smaller prism be L, W, and H respectively.
Two proportions:
4/L = 4/3
3/W = 3/2
Solving the proportions, we find that the lengths, width, and height of the smaller prism are 3 feet, 2 feet, and 3 feet respectively.
7. What is the measure of ZE ?
Answers
Answer:
70 degrees
Step-by-step explanation:
The adjacent angles in a parallelogram are supplementary and add to 180 degrees
∠CDE+∠DEF=180
We know that ∠CDE is 110 degrees, so we can substitute that in
∠CDE+∠DEF=180
110+∠DEF=180
Subtract 110 from both sides
∠DEF= 70
So, ∠E is 70 degrees
Round 44.057 to the nearest hundredth.
Answers
Answer:
44.057 to nearest hundredth
44.06
The circle below has center K, and its radius is 3 yd. Given that m 2 LKM = 70°, find the length of the major arc LNM.
Give an exact answer in terms of 71, and be sure to include the correct unit in your answer.
Length of major arc LNM :
Answers
The length of the major arc LNM, in terms of pi, is 29π/6 yards.
The circle has a radius of 3 yards and the central angle m∠LKM is 70°. Since the question asks for the length of the major arc LNM, we first need to calculate the angle of the major arc. The angle of a full circle is 360°, so the angle of the major arc will be 360° - 70° = 290°.
To find the arc length, we use the formula for arc length (l) which is: l = rθ (in radians). We must convert the angle from degrees to radians by multiplying by π/180. So, 290° becomes (290π/180) radians.
Now, compute the length of the major arc LNM: l = 3 yd * (290π/180) = (870π/180) yd, which simplifies to: 29π/6 yd. Thus, the length of the major arc LNM, in terms of π, is 29π/6 yards.
The box plots show the average wind speeds, in miles per hour, for various cities in two different countries
Average Wind Speeds of Cities in Country A
D
's
8
9
10 11
Average Wind Speeds of Cities in Country B
Which statement describes the symmetry of the data in the two box plots?
The data in country A are more symmetric than the data in country B.
The data in country B are more symmetric than the data in country A
The data in both countries have about the same symmetry.
The symmetry of the data cannot be determined by looking at the box plots.
What is the answer
Answers
Answer:
the answer is b.
Step-by-step explanation:
Finding Coordinates of a Translation
Triangle XYZ has coordinates X(2, 4), Y(-3, 4), and Z(-3,1). If the triangle is translated using the rule
(x, y) → (x - 2, y + 1), what are the coordinates of Y'?
Y'(-5,5)
OY'(0,5)
Y'(-5,2)
Y'(-1,3)
Answers
Transformation involves changing the position of a shape
The coordinates of Y' are (-5, 5)
The vertices are given as:
X(2, 4), Y(-3, 4), and Z(-3,1)
The transformation rule is given as:
(x, y) → (x - 2, y + 1)
For vertex Y, we have:
(-3, 4) → (-3 - 2, 4 + 1)
Simplify
(-3, 4) → (-5, 5)
Hence, the coordinates of Y' are (-5, 5)
Read more about transformation at:
https://brainly.com/question/4289712
What is 4/24 x 2/3 =
Simplied
Answers
Answer:
all work is shown and pictured
Wich is the least common multiple of 12 and 8?
Answers
Answer: 24
Step-by-step explanation: The first few multiples of 8 are: 8, 16, 24, 32, 40, and 48. The first multiples of 12 are: 12, 24, 36, 48, 60, and 72.
...
Step 1: List the Multiples of Each Number.
please assist me with this problem
Answers
Answer:
a) [tex]\sqrt{64+x^2}[/tex]
b) 15
Step-by-step explanation:
a) We know that AB = 8 and BC = x. We can use the Pythagorean Theorem, which states that for a right triangle with sides a, b, and c: [tex]a^2 +b^2=c^2[/tex] , where a and b are the shortest sides and c is the longest.
Here, AB = a = 8 and BC = b = x. So, AC = c. Then:
[tex]AB^2+BC^2=AC^2[/tex]
[tex]8^2+x^2=AC^2[/tex]
[tex]AC=\sqrt{64+x^2}[/tex]
b) We know that AC - AB = 9. Since AB = 8, then AC = 9 + 8 = 17. We also have the expression from above, so set them equal:
[tex]AC=\sqrt{64+x^2}=17[/tex]
[tex]64+x^2=289[/tex]
[tex]x^2=225[/tex]
x = 15
Hope this helps!
Answer:
sqrt(x^2 +64) = AC
x = 15
Step-by-step explanation:
We can use the Pythagorean theorem since this is a right triangle
a^2 + b^2 =c^2 a and b are the legs and c is the hypotenuse
We know the legs are x and 8
x^2 + 8^2 = AC^2
x^2 + 64= AC^2
Solving for AC
Take the square root of each side
sqrt(x^2 + 64) = sqrt(AC^2)
sqrt(x^2 +64) = AC
We are given AC - AB = 9
We know AB = 8
AC -8 =9
Add 8 to each side
AC -8+8 = 9+8
AC = 17
AC is the hypotenuse,
x^2 + 64= AC^2
x^2 +64 = 17^2
x^2 +64 = 289
Subtract 64 from each side
x^2 +64-64 = 289-64
x^2 =225
Take the square root
sqrt(x^2) = sqrt(225)
x =15
What is the least common multiple of 4 and 5?
Answers
Answer:
20
Step-by-step explanation:
Hi there,
To find the least common multiple (LCM) of 2 numbers, I would recommend listing off a few multiples of each number. Since they are small, it shouldn't be too hard.
Multiples of 4:
4, 8, 12, 16, 20
Multiples of 5:
5, 10, 15, 20
As you can see, the first multiple that 4 and 5 both share is 20. So the least common multiple of 4 and 5 20.
Hey, I need help with the questions attached. I need it in 20 minutes, it is last minute homework. Thank you very much.
Answers
Answer:
1)
90g strawberry jelly
6 sponge fingers
315ml custard
135g tinned fruit
2) 260 cm²
Step-by-step explanation:
1) 120/4 × 3
90g strawberry jelly
8/4 × 3
6 sponge fingers
420/4 × 3
315ml custard
180/4 × 3
135g tinned fruit
2) area = base × height
= 20 × 13
= 260 cm²
Answers and Step-by-step explanations:
1. Let's find the amount of each ingredient we need for 1 person, and then multiply that by 3 later.
strawberry jelly: we have 120 grams for 4 people, so for 1 person, we need 120/4 = 30 grams
sponge fingers: we have 8 of these for 4 people, so for 1 person, we need 8/4 = 2 sponge fingers
custard: we have 420 mL for 4 people, so for 1 person, we need 420/4 = 105 mL
tinned fruit: we have 180 grams for 4 people, so for 1 person, we need 180/4 = 45 grams
Now, multiply each of these by 3 to find the amount needed for 3 people:
strawberry jelly: 30 grams * 3 = 90 grams
sponge fingers: 2 sponge fingers * 3 = 6 sponge fingers
custard: 105 mL * 3 = 315 mL
tinned fruit: 45 grams * 3 = 135 grams
2. The area of a parallelogram is calculated by the formula: A = Bh, where B is the base length (usually a side length) and h is the height perpendicular to the base. Here, we see that have two potential base lengths: 20 and 15. However, looking at the height, it's only perpendicular to the base with length 20, so we know that B = 20 and h = 13.
Plugging these into the formula, we get: A = 20 * 13 = 260 cm squared.
Hope this helps!
Gertrude made eight more than three times the number of apple pies that Ruth made. If Gertrude made 14 pies, how many did Ruth make?( hint: let p equal the number of pies Ruth made.)
Answers
WILL GIVE 1ST RIGHT ANSWER BRAINIEST!
After two numbers are removed from the list 9,13,15,17,19,23,31,49, the average and the median each increase by 2. What is the product of the two numbers that were removed?
Answers
Answer:
247
Step-by-step explanation:
Hello!
We can begin by finding the average and median before two numbers are removed.
(9 + 13 + 15 + 17 + 19 + 23 + 31 + 49) / 8 = 22
And the median!
(17 + 19)/ 2 = 18
Since we know that the average and median will increase by 2, we will have the median after removal as 20, and the average, 24.
For the average, we can see that the total must be 144, that's what 24 * 6 is.
19 must have been one of the numbers because (17 + 23) / 2 = 20.
That's 32 less than the original sum of 176.
So if one of the removed numbers is 19, the other must be 13.
13 * 19 = 247
Thus, the product of the removed numbers are [tex]\boxed{247}[/tex].
Hope this helps!
What is the price of one crate of flowers?
Write the unit rate as a decimal in dollars and cents.
$
Answers
Answer:
$ 2.50
This is the right answer for ed2020
Answer:
$2.50
Step-by-step explanation:
Bc yeah <3
An equation has solutions of m = -5 and m = 9. Which could be the equation?
(m + 5)(m - 9) = 0
(m - 5)(m + 9) = 0
m? - 5m + 9 = 0
m2 + 5m-9=0
Answers
Answer:
(m+5) (m-9) = 0
Step-by-step explanation:
An equation with solutions of m = –5 and m = 9 is y = m² − 4m − 45.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
For example, 3x – 5 = 16 is an equation.
Given that, the solutions of an equation are m = -5, and m = 9, we need to find the equation,
(m + 5) (m - 9) = 0
One possibility is that of a quadratic equation.
y = (m + 5) (m - 9)
y = m² - 9m + 5m - 45
y = m² - 4m - 45
Hence, an equation with solutions of m = –5 and m = 9 is y = m² − 4m − 45.
Learn more about equations, click;
https://brainly.com/question/29657983
#SPJ5
What error did Amy make in writing the equation in slope-intercept form for the line shown in the graph?
Amy’s equation:
Answers
Answer:
letter C
Step-by-step explanation:
She substitue the X-Intercept, (3,0), for B
#brainliestisthekey
As I was going to St Ives I met a man with 7 wives. Each wife had 7 kids. Each kid had 7 cats. Each cat had 7 kittens. How many were going to St Ives?
Answers
Answer:
2401
Step-by-step explanation:
7 * 7 * 7 * 7 = 2401
What is the value of x in 15x-15=30
Answers
Answer: 3
15(3)-15=30
45-15=30
30=30
15x-15=30
15x=45
x=3
Answer:
x=3Step-by-step explanation:
[tex]\sf 15x-15=30[/tex]
[tex]\sf 15x-15+15=30+15[/tex]
[tex]\sf 15x=45[/tex]
[tex]\sf \frac{15x}{15}=\frac{45}{15}[/tex]
[tex]\sf x=3[/tex]
Which sentence signals a major shift in the action of the story?
A "The suns beat down on her neck as she stepped closer to examine the chart
B "She stamped her foot and gave a loud groan."
C Kari suddenly remembered a magic trick she had performed at her little brother's
birthday party.
D
"Then she watched as the pile of snow came falling down to test on the dirt that had
been underneath the grass field."
Answers
Answer:
i think, it is option c.
Work out the answers to:
a) 6 × (-3)
b) (-5) × 4
c) (-9) × (-2)
Answers
Step-by-step explanation:
a. 6 * (-3) = - 18
b. (-5) * 4 = - 20
c. (-9) * (-2) = 18
Yasmin arrived home from play practice at 4:25 pm. The walk took 15 minutes. Practice began 20 minutes after the final bell and lasted for a half hour. When did school end
Answers
Answer:
3:20 pm.
Step-by-step explanation:
Time Yasmin got home: 4:25
Time it took to walk home: 15 minutes
Practice started: 20 minutes after bell.
Practice lasted for 30 minutes.
For us to find this out, you have to calculate all the activities.
An hour is 60 minutes.
A half hour is 30 minutes.
15 + 20 + 30 = 65 minutes.
65 minutes = an hour and five minutes.
4:25 - 1:05 = 3:20.
Feel free to let me know if you need more help! :)
Answer:
3:20 p.m
Step-by-step explanation:
Each lap Jeffery runs is 1 tenth of a mile. He wants to run 3 fifths
of a mile
How many laps does Jeffery need to run?
Answers
Answer:
6 laps
Step-by-step explanation:
Jeffery needs to run 3 laps.
Explanation:To find the number of laps that Jeffery needs to run, we can set up a proportion. We know that 1 lap is equal to 1 tenth of a mile, so we can set up the following proportion:
1 lap / 1 tenth mile = x laps / 3 fifths mile
Cross-multiplying and solving for x, we get:
x = (1 lap * 3 fifths mile) / (1 tenth mile)
x = 3 laps / 1 lap
x = 3
Therefore, Jeffery needs to run 3 laps.
Learn more about Proportion here:https://brainly.com/question/34018947
#SPJ2