Complete the square: x^2-8x+21=6
Please show work
Answer:
x=5 and 3
Step-by-step explanation:
x^2-8x+21=6
x^2-8x+21+16=6+16
(x-4)^2=1
(x-4)=±1, x=5 and 3
........................
A=1/2bh solve for b then h
Answer:
There is no right or wrong answer
Step-by-step explanation:
You did not give enough information, this formula usually comes with a triangle that you want to solve, therefore no one can answer this correctly since there is nothing to solve.
42.3952 to the nearest thousandths
Answer:
42.395
Step-by-step explanation:
The thousandths place is the 3 number to the ride of the decimal. We will need to look at the 4th decimal place to round. Remember these rules when rounding:
5 and above round up4 and below round downNow that we know what to do, we can round accordingly.
42.3952 → 42.395
Best of Luck!
Please help quickly as possible Thank you!
Answer:
A) [tex]\frac{3}{8}[/tex], [tex]\frac{2}{5}[/tex], [tex]\frac{1}{2}[/tex], [tex]\frac{7}{10}[/tex]
B) 2.53, 32.51, 514.37
Step-by-step explanation:
A) Multiply all of them to equal 80
1/2 = 40/80 (1 x 40) (2 x 40)
2/5 = 32/80 (2 x 16) (5 x 16)
3/8 = 30/80 (3 x 10) (8 x 10)
7/10 = 56/80 (7 x 8) (10 x 8)
B) Decimals are easy 1.10 < 1.20 since one is still greater than the other.
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Answer:
[tex]x=-3[/tex]
Step-by-step explanation:
[tex]x+5-5=2-5[/tex]
[tex]x=-3[/tex]
III. Direction: Solve and check. show your complete Solution.
1)
x+5 = 2
x = 2 - 5
x = -3
checking
x+5 = 2
-3 + 5 = 2
2 = 2
I hope this helps. Goodluck :)
what is 3 ÷ 2/5??? pls help
Answer:
7.5
Step-by-step explanation:
Answer:
7.5
Step-by-step explanation:
3/2/5=3/2×5. a/b/c=a/b×c
1.5×5=7.5
write the least 6 digit number which is exactly divisible by 83
Answer:
100015
Step-by-step explanation:
it to a little to find it but it is true. I started at 100000 and went up by 1 until I found my answer.
what is f(x) = x2 + 4x in standard form
Answer:
(x) =x2+4x
x=6x+x
=6x
Step-by-step explanation:
right answer is 6x
write the equation of the line in fully simplified slope-intercept form.
Answer:
slope intercept form: y=mx+c
Step-by-step explanation:
By using two points form:
y-0/3-0=x-1/2 /0-3
y/3=x-1/2 /3
y=x-1/2
Note:if you need to know any question please let me know.
Find the angle 0,in radians, in the given right triangle. The length of the side adjacent to 0 is 17
and the length of the side opposite is 11.
9514 1404 393
Answer:
0.574305 radians
Step-by-step explanation:
The tangent ratio is defined as ...
Tan = Opposite/Adjacent
tan(θ) = 11/17
θ = arctan(11/17) ≈ 0.574305 radians
_____
Make sure your calculator is in Radians mode.
Which expression is equivalent to (2 + 6i)(5 + 2i)?
A 22 + 34i
B -2 - 34i
C -2 + 34i
D -2 + 26i
Answer:
c. -2 + 34i
Step-by-step explanation:
(2 + 6i)(5 + 2i)
c. -2 + 34i
Find the area of the shaded region.
help me again Scooby do
I got more Scooby snac just for you, Imao
The correct answer is letter B. V = 141.3cm³
Here's the Solution:
V = π r²hV = (3.14) (3cm)² (5cm)V = (3.14) (9cm²) (5cm)V = (3.24) (45cm³)V = 141.3cm³HOPE THIS HELPS. GOODLUCK:)
Pick a bin from each row. Subtract to find how many more bottles are in the bin from the top row than the bin from the bottom row
Bin A 15 bin B 12 bin C 13
Bin D 9 binE 7 bin F 8
How do you solve this problem
Answer:
Step-by-step explanation:
The number of Bins in the first row is 16 higher than in the second row.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given first and second rows are:-
Bin A 15 bin B 12 bin C 13
Bin D 9 binE 7 bin F 8
The total number of the bins first row = Bin A + bin B + bin C
The total number of the bins first row = 15 + 12 + 13 = 40
The total number of the bins in the second row = Bin D + Bin E + Bin F
The total number of bins in the second row = 9 + 7 + 8 = 24
Therefore, the number of Bins in the first row is 16 higher than in the second row.
To know more about an expression follow
https://brainly.com/question/878985
#SPJ2
|x-2| > square root (x)
Answer:
x = 0
Step-by-step explanation:
I. When x cant be negative value and
II. Find possible positive value
If x = 0
|0-2| > [tex]\sqrt{0}[/tex]
|-2| > 0
2 > 0 true
If x = 1
|1 - 2| > [tex]\sqrt{1}[/tex]
| -1 | > 1
1 > 1 false
More question or something to discuss, leave comment below
Answer:
Step-by-step explanation:
x ≥ 0 (because the square root)
[tex]|x-2| > \sqrt{x}\\\\1)\ if \ x-2 >0 \ (\ or\ x > 2):\\|x-2|=x-2\\\\x-2 > \sqrt(x) \Longrightarrow\ (x-2)^2 > x\\\Longrightarrow\ x^2-4x+4 > x\\\Longrightarrow\ x^2-5x+4 > 0\\\Longrightarrow\ (x-1)(x-4) > 0\\\Longrightarrow\ x<1\ or\ x>4 \Longrightarrow\ x >4 \ (since\ x>2)\\\\[/tex]
[tex]2)\ if\ x-2 <0 \ (\ or\ x < 2):\\|x-2|=-(x-2)=-x+2\\\\-x+2 > \sqrt(x) \Longrightarrow\ (-x+2)^2 > x\\\Longrightarrow\ x^2-4x+4 > x\\\Longrightarrow\ x^2-5x+4 > 0\\\Longrightarrow\ (x-1)(x-4) > 0\\\Longrightarrow\ x<1\ or\ x>4 \Longrightarrow\ x\geq 0\ and \ x\leq 1 \\[/tex]
Sol= [0, 1] ∪ ]4,+∞) ***** corrected
At Jeremy's school, the final grade for his Human Biology course is weighted as follows:
Tests: 50%
Quizzes: 35%
Homework: 15%
Jeremy has an average of 94% on his tests, 78% on his quizzes, and 62% on his homework.
What is Jeremy's weighted average?
83.6%
78%
74.8%
75.6%
Answer:
78%
Step-by-step explanation:
.94 + .78 + .62 = 2.34
2.34/3 = .78
.78 = 78%
Jeremy's weighted average is 83.6%
The grades and the weights of the grades can be represented using the following table
Subject Final Grade Average
Test 50% 94%
Quiz 35% 78%
Homework 15% 62%
The weighted average (w) is the sum of the product of the final grades and the average.
So, we have:
[tex]w = \sum Final\ Grade \times Avearge[/tex]
This gives
[tex]w = 50\% \times 94\% + 35\% \times 78\% + 15\% \times 62\%[/tex]
Evaluate the products
[tex]w = 47\% + 27.3\% + 9.3\%[/tex]
Evaluate the sums
[tex]w = 83.6\%[/tex]
Hence, the weighted average is 83.6%
Read more about weighted average at:
https://brainly.com/question/11408596
12. The cost of carpeting I square meter of a floor is Rs.500. find the cost of carpeting 12 square meters of floor
Answer: 6000
Step-by-step explanation:
1 square meter = Rs.500
500x12
= 6000
12 square meters = Rs.6000
Perform the indicated operation.
(7x + 2x2 - 6x - 4) - (2x+3x2 - 3x + 11)
(7x + 2x2 - 5x - 4) - (2x + 3x² 3x + 11) =
(Simplify your answer. Do not factor.)
Step-by-step explanation:
1st.
(7x+2×2-6x-4) - (2x+3×2-3x+11)
(7x+4-6x-4)-(2x+6-3x+11)
collect like terms
(7x-6x-4+4)-(2x-3x+11+6)
(x+0)-(-x+17)
multiply - by the bracket
x+0+x-17
collect like terms
x+x+0-17
2x-17=0
2x=17
divide both sides by the coefficient of x
2x/2=17/2
x=17/2
Given the functions f(x)=3x−2and h(x)=x−10. Find (g⋅h)(x)and simplify completely.
Answer:
(g.h) (x) = 3x² -32x+20
Step-by-step explanation:
g(x)=3x−2
h(x)=x−10
(g . h)(x) = (3x-2) (x-10)
= 3x²-30x-2x+20
= 3x² -32x+20
= 3x² - 32x + 20
Cuvantul vesel e un a) adjectiv b) substantiv ??
Cuvantul vesel e un
a) adjectiv
b) substantiv ??
Answer:-[tex] \bold \red{adjectiv}[/tex]
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a basket contains 3 green 4 yellow 5 blue and 6 red tickets one of which is randomly selected probability of drawing a green or a red ticket
Answer: 21
Step-by-step explanation:
(15-12)2-2+5=
20+23×3-1=
[4(3+2)-4]+42
Answer:
Here is your answer . Hope this is helpful to you.
I don’t know how to divide the fraction
Step-by-step explanation:
1 7/8 ÷ 3/4 = 15/8 ÷ 3/4
= 15/8 × 4/3
= 45/24 × 32/24
= 1440/24
= 60
Answer:
-2.5 or 5/2
Step-by-step explanation:
-1 ⅞ ÷¾
=-15/8×4/3
=-60/24= -5/2 or -2.5
What is the area of a circle whose radius is r?
What is the area of a circle whose diameter is 2x cm?
Answer:
Area of circle = πr^2
Area of circle when diameter is 2x; r=x
=πx^2
Solve the inequality for x 17>5-4/3 x
Answer:
[tex]17 > 5 - \frac{4}{3} x \\ 17 - 5 > - \frac{4}{3} x \\ 12 > - \frac{4}{3}x \\ \frac{3 \times 12}{4} > - x \\ 9 > - x \\ multily \: by - 1then \: > \: become \: < \\ - 9 < x \\ thank \: you[/tex]
Type your answers into the boxes.
The ratio of men to women in a gym is 7 : 5
What fraction of the gym members are women?
Answer:
[tex] \frac{5}{12} [/tex]
Step-by-step explanation:
[tex] \frac{5}{7 + 5} [/tex]
I'm not sure about the answer. Sorry if it's wrong.
Build a function whose domain is all real numbers other than -4, and whose range is all real numbers other than 5.
Answer:
An example is the rational function [tex]y=\frac{5x}{x+4}[/tex].
Step-by-step explanation:
The graph of the rational function [tex]y=\frac{5x}{x+4}[/tex] has a vertical asymptote at x = -4 where the denominator is equal to zero. The function is undefined there, so the domain is all real numbers except -4.
The graph has a horizontal asymptote y = 5 so the domain is all real numbers except 5.
See the attached image for the graph of the function (purple) and it's vertical asymptote (black).
simplify y + 5 - y - 6
Answer:
-1
Step-by-step explanation:
Subtract the numbers: y+5-y-6
Combine like terms: y-1-y
= -1
Find the value of x.
X+58+43 =90
X= - 11
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Answer: -11
Step-by-step explanation: one of the angle is 90 another one is 43, and all 3 will be 180; so 90+43+?=180,
133+x+58=180,
191+x=180,
-191 to both side,
x=-11
if p(x) = 6x³ + 5x² + 7x - 5, find the coefficient of x³
Answer:
6x
Step-by-step explanation:
because in front of x^3 there is 6x and also the qn has asked to find the coefficient of x^3
Answer:
It is 6
Step-by-step explanation:
take an example:
[tex]a {x}^{3} + {bx}^{2} + cx + d[/tex]
a, b, and c are coefficients of x³, x², and x respectively.
d is a constant.