He is incorrect because he should have 6 factors of 9.
Answer:
I think he is incorrect because 3x3 x 3x2 only equals 0.16. So I think it is answer 3.
Step-by-step explanation:
Evaluate the function
Answer:
-2
Step-by-step explanation:
f(x) = 3x^2 + 5x - 14
substitute -3 inplace of x
f(-3) = 3*(-3)^2 + 5*(-3) - 14
=3*9 - 15 - 14
=27 - 15 - 14
= -2
I tried dividing 16/.95¢ to find the amount per ounce. The answer I got is ¢16.84 per ounce. Not sure if I rounded correctly but it seems that my answer is wrong? How do I go about this?
======================================================
Explanation:
You're dividing in the wrong order.
You divide the price over the number of items to get the unit price.
So you should say 95/16 = 5.9375 which then rounds to 5.9
----------------
Why does it work? Well consider the fact we can set up this ratio
16 ounces : 95 cents
we then divide both sides by 16 to turn that "16 ounces" into "1 ounce"
Doing so leads us to
1 ounce : 5.9375 cents
What is the exam score for an exam whose z-score is 1.25?
Answer:
85
Step-by-step explanation:
A z-score of 1.25 means that the actual exam score is 1.25 standard deviations above the mean, and therefore the exam score we are looking for is: mean + 1.25 * SD = 75 + 1.25 * 8 = 85
I need this by to night somebody help pls
Answer:
0° < x < 83.76°
Step-by-step explanation:
Assuming a pyramid with a square base, and the height of the pyramid varies from almost zero to almost infinity.
The largest value for the angle x+2 is when the height of the pyramid is almost zero.
Then the face is an isosceles triangle with base 13 and height 14.
The angle opposite the base is then
x+2 = 2*atan(6.5/7) = 2* 42.879 = 85.76°
when the height is almost infinite, the angle is almost zero.
Therefore the range of the value of x
0° < x < 83.76°
Which scenario is modeled by the equation (x) (0.6) = 86 dollars and 46 cents?
Answer:
Answer: (C)A picnic table is on sale for 60 percent off.
Step-by-step explanation:
well someone copied me but okay :[
Question 1
Consider the ratio of 153 per 108. Write this ratio in different forms below.
A ratio written as a reduced fraction 17/12
A ratio written as a decimal rounded to the hundredths II
0
(14)
Answer:
Collage = Bad lol
Step-by-step explanation:
i need help with this asap
Answer:
Step-by-step explanation:
Q2
What is 23.3 x 0.463 correct to three decimal places?
Answer:
10.787
Step-by-step explanation:
Given :
23.3×0.463
After multiplying this equation ,
10.787
Therefore, answer will be 10.787
For the equation, complete the solution. 8x + y = −7
(x, y) = , 1
Answer:
(x, y) = (-1, 1)
Step-by-step explanation:
8x + y = −7
for y = 1
8x + 1 = -7
subtract 1 from boh sides
8x = -8
divide bot sides by 8
x = -1
(x, y) = (-1, 1)
anhghuygyygyubbhjhbhjbjhbjhbjhbj
Answer:
25 min
Step-by-step explanation:
165 min = 2 hr 45 min
2 hr 45 min - 1 hr 45 min = 1 hr
1 hr - 35 min = 25 min
If f(t) = 3t4 + 5t+8, what is the value of f(-2)?
Answer:
3t4 plus 5t equal value of minus two equal is minus eight
Find the volume of the prism.
4.8 m
10 m
7.2 m
Answer:
172.8 m^3
Step-by-step explanation:
Volume for triangualr prism formula:
1/2 • length • width • height
Use formula with given dimensions:
1/2 • 7.2 m • 10 m • 4.8 m = 172.8
Volume is measured in cubic meters
(meters in this situation)
FINAL ANSWER:
172.8 cubic meters
Hope this helps!
The volume of the given prism is 172.8 cubic centimeters.
The given prism is a triangular prism with base length of 7.2m.
Height of 4.8m
Length of 10m.
The formula for volume of prism is V=1/2 bhl
Plug in the values of length , breadth and height:
V=(1/2) × 10 × 4.8 × 7.2
V=5×4.8×7.2
V=172.8 cubic centimeters.
Hence, the volume of the given prism is 172.8 cubic centimeters.
To learn more on Three dimensional figure click:
https://brainly.com/question/2400003
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Find the volume of the prism.
6 ft
9 ft
4.5 ft
Answer:
The volume of the prism is 243 ft^3.
Step-by-step explanation:
The equation you have to use is A=Bh
Answer: 121.5 ft3
Step-by-step explanation:
Use this formula for volume of triangulsr prism:
1/2 • length • width • height
That will be 1/2 • 4.5 • 9 x 6 = 121.5
Unit of measurement is ft3 (also same as cubic feet)
Welcomeee!
A baseball player hits a home run. A spectator observes the trajectory of the ball and expresses the height of the ball using the equation s(t)= -(t-15) + 225. Calculate the instantaneous velocity of the ball at t=4 seconds where the distance is measured in meters.
A. 44 m/sec
B. 30 m/sec
C. 26 m/sec
D. 22 m/sec
Answer:
The appropriate solution is Option D (22 m/sec).
Step-by-step explanation:
The given equation is:
[tex]s(t)= -(t-15)^2 + 225[/tex]
Now,
The instantaneous velocity at t = 4 will be:
= [tex][-2(t-15)(1)+0][/tex]
= [tex]-2(4-15)[/tex]
= [tex]-2\times (-11)[/tex]
= [tex]22 \ m/sec[/tex]
Thus, the above is the correct option.
Really struggling with this, can someone please help me out and give me a brief explanation?
Answer:
the answer is 220
Step-by-step explanation:
the formula for surface area of a rectangular prism is A=2(wl+hl+hw)
w = width
h= height
l = length
and when you have those lengths, you have to substitute.
Hi :), im really struggling with this. Just wanted to know if anyone can explain step by step for me please. Id really appreciate it.
Answer:
314 m²
Step-by-step explanation:
the formula for the surface area of a sphere (As) is
As = 4×pi×r²
the radius r (half of the diameter) is clearly indicated as 5m.
so, As = 4×3.14×5² = 4×3.14×25
I don't even need a calculator for this, as 4×25 = 100
so, As = 100×3.14 = 314
(you know, when multiplying by 10, the decimal point moves right one position. multiply by 100 it moves 2 positions, and so on).
Find NP from the rectangle
The diagonals of a rectangle are equal and bisect each other.
NQ= 2×5 =10
Using Pythagoras theoram,
PQ²+NP²=NQ²
4²+ NP²= 10²
NP²= 100-16
NP²= 84
NP =√84
NP=2√21 = 9.2A hotel spent $504 on new hair dryers. The hair dryers cost $8 each. The hotel has 6 floors with the same number of rooms on each floor. If every room gets a new hair dryer, how many hair dryers will be left over?
Answer:
504/8=63/6=10.5
10 rooms per floor with 3 leftover
the algebraic form of the sum of n terms of an arithmetic sequence is 3n2 + 5 n .what is the common difference ?
Answer:
[tex]d = 6[/tex]
Step-by-step explanation:
Given
[tex]S_n = 3n^2 + 5n[/tex]
Required
Find d
First, find the sum of the first 1 term
[tex]S_1 = 3 * 1^2 + 5 * 1[/tex]
[tex]S_1 = 8[/tex]
The sum of the first 2 terms
[tex]S_2 = 3 * 2^2 + 5 * 2[/tex]
[tex]S_2 = 22[/tex]
Calculate the first term (a)
[tex]a = S_1[/tex]
[tex]a = 8[/tex]
Calculate the second term (T2)
[tex]T_2 = S_2 - S_1[/tex]
[tex]T_2 = 22 - 8[/tex]
[tex]T_2 = 14[/tex]
The common difference is:
[tex]d = T_2 - a[/tex]
[tex]d = 14 - 8[/tex]
[tex]d = 6[/tex]
Find an example for each of vectors x, y ∈ V in R.
n
for n = 2 or n = 3 such that
applies:
A
||x|| = max{|x1|, ..., |xn|}
||x|| =√n · max{|x1|, ..., |xn|}
(B)
||x + y|| = ||x|| + ||y||
||x + y|| < ||x|| + ||y||
(C)
||x · y|| = ||x|| · ||y||
||x · y|| < ||x|| · ||y||
(a) Both conditions are satisfied with x = (1, 0) for [tex]\mathbb R^2[/tex] and x = (1, 0, 0) for [tex]\mathbb R^3[/tex]:
||(1, 0)|| = √(1² + 0²) = 1
max{1, 0} = 1
||(1, 0, 0)|| = √(1² + 0² + 0²) = 1
max{1, 0, 0} = 1
(b) This is the well-known triangle inequality. Equality holds if one of x or y is the zero vector, or if x = y. For example, in [tex]\mathbb R^2[/tex], take x = (0, 0) and y = (1, 1). Then
||x + y|| = ||(0, 0) + (1, 1)|| = ||(1, 1)|| = √(1² + 1²) = √2
||x|| + ||y|| = ||(0, 0)|| + ||(1, 1)|| = √(0² + 0²) + √(1² + 1²) = √2
The left side is strictly smaller if both vectors are non-zero and not equal. For example, if x = (1, 0) and y = (0, 1), then
||x + y|| = ||(1, 0) + (0, 1)|| = ||(1, 1)|| = √(1² + 1²) = √2
||x|| + ||y|| = ||(1, 0)|| + ||(0, 1)|| = √(1² + 0²) + √(0² + 1²) = 2
and of course √2 < 2.
Similarly, in [tex]\mathbb R^3[/tex] you can use x = (0, 0, 0) and y = (1, 1, 1) for the equality, and x = (1, 0, 0) and y = (0, 1, 0) for the inequality.
(c) Recall the dot product identity,
x • y = ||x|| ||y|| cos(θ),
where θ is the angle between the vectors x and y. Both sides are scalar, so taking the norm gives
||x • y|| = ||(||x|| ||y|| cos(θ)|| = ||x|| ||y|| |cos(θ)|
Suppose x = (0, 0) and y = (1, 1). Then
||x • y|| = |(0, 0) • (1, 1)| = 0
||x|| • ||y|| = ||(0, 0)|| • ||(1, 1)|| = 0 • √2 = 0
For the inequality, recall that cos(θ) is bounded between -1 and 1, so 0 ≤ |cos(θ)| ≤ 1, with |cos(θ)| = 0 if x and y are perpendicular to one another, and |cos(θ)| = 1 if x and y are (anti-)parallel. You get everything in between for any acute angle θ. So take x = (1, 0) and y = (1, 1). Then
||x • y|| = |(1, 0) • (1, 1)| = |1| = 1
||x|| • ||y|| = ||(1, 0)|| • ||(1, 1)|| = 1 • √2 = √2
In [tex]\mathbb R^3[/tex], you can use the vectors x = (1, 0, 0) and y = (1, 1, 1).
I need help with this
ratio equivalent to 1:7.
Answer:
49
Step-by-step explanation:
Write an equation of the line passing through the given point and satisfying the given condition. Give the equation (a) in slope-intercept form and (b) in standard form.
(6, 1), perpendicular to 2x - y = 8
Answer:
I don't no answer sorry
Step-by-step explanation:
give me brainliest
What is the answer to part a and b?
At the store, Alyssa spent $3.25 on stickers and $6.50 on candy. She paid with a $10 bill. How much change did she get back?
Answer:
$0.25
Step-by-step explanation:
First, find how much the stickers and candy cost in total:
3.25 + 6.50
= 9.75
Subtract this from 10 to find how much change she got back:
10 - 9.75
= 0.25
So, she got back $0.25 in change
write the ratio 14:56 in the simplets form
Answer:
the correct answer is 1:4
Step-by-step explanation:
hope this helps!
If x = 10, which lines are parallel? Check all that apply.
pls someone help me who ever answers with a good explanation how to solve it, gets brainliest
Answer:
BCDE
Step-by-step explanation:
You can see it in the image. Parallel = if the line keeps going and will never touch each other.
Write the following equation in standard form. Show your work. y =3/7x -2
Answer:
3x - 7y = 14
Step-by-step explanation:
standard form is: ax + by = c
first, add 2 to each side of the equation to get:
2 + y = 3/7x
now multiply each term by 7 to eliminate fraction:
14 + 7y = 3x
now subtract 7y from each side to get:
3x - 7y = 14
Solve for x: 12x+5=3x+35
Answer:
The answer would be 3.33.
Step-by-step explanation:
Simplifying 12x + 5 = 3x + 35
Reorder the terms: 5 + 12x = 3x + 35
Reorder the terms: 5 + 12x = 35 + 3x
Solving 5 + 12x = 35 + 3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x' to each side of the equation. 5 + 12x + -3x = 35 + 3x + -3x
Combine like terms: 12x + -3x = 9x 5 + 9x = 35 + 3x + -3x
Combine like terms: 3x + -3x = 0 5 + 9x = 35 + 0 5 + 9x = 35
Add '-5' to each side of the equation. 5 + -5 + 9x = 35 + -5
Combine like terms: 5 + -5 = 0 0 + 9x = 35 + -5 9x = 35 + -5
Combine like terms: 35 + -5 = 30 9x = 30
Divide each side by '9'. x = 3.333333333
Simplifying x = 3.333333333
The ___is the middle number of a group a numbers
Answer:
The Median is the middle number of a group of numbers.
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