Answer:
x=i or no solution exists depending on the user's grade
Step-by-step explanation:
f(x) = 2x^2-5
-7 = 2x^2-5
-2 = 2x^2, x^2=-1, x=i
Answer:
±i = x
Step-by-step explanation:
f(x)=2x^2-5;
f(x)=-7
-7 = 2x^2 -5
Add 5 to each side
-7+5 = 2x^2 -5+5
-2 =2x^2
Divide by 2
-2/2 =2x^2 /2
-1 = x^2
Take the square root of each side
sqrt(-1) = sqrt(x^2)
±i = x
How many milligrams are there in a 5.00 grain aspirin tablet?
Answer:
How many mg are there in a 5.00 grain aspirin tablet ? 1 grain = 0.00229 oz . there are 454 g/lb
math geometry (10 points)
Answer:
100
Step-by-step explanation:
x=100
bcz vertically opposite angles
please any help it's urgent for me.......ok....
Answer:
[tex]here \: tn + 1 = 3 \\ tn = 2 \\ put \: n = 1 \\ t1 = 2 \\ put \: n = 2 \\ t2 = 2 \\ put \: n = 3 \\ t 3 = 2 \\ for \: all \: n \: \: values \: t = 2 \\ thank \: you[/tex]
What is the length of AC
Answer:
24 is the answer. Hope it helps you! Stay blessed.
Claude's net pay for the month was $985.50.
If his gross pay is $1350.00, his net pay is what percent of the gross pay?
Hello ;)
We have :
Claude's net pay → $985.50
Claude's gross pay → $1350.00
We know that the gross pay represents 100 % of the salary.
So :
$1350.00 ⇔ 100 %
$985.50 ⇔ ? %
? = 985.5 × 100 ÷ 1350 = 73 %
Claude's net pay is 73 % of the gross pay.
:-)
Based on his net pay being $985.50 and his gross pay being $1,350.00, the net pay is 73% of the gross pay.
To find out how much of the percentage of something a variable is, you make the variable the numerator and the other measure the denominator.
In this instance that would be:
= Net pay / Gross pay x 100%
= 985.50 / 1,350 x 100%
= 73%
In conclusion, the net pay is 73% of the gross pay.
Find out more at https://brainly.com/question/8568211.
What is the complete factorization of x2 + 2x + 1 - y2?
A)
(x + 1 + y)(x + 1 - y)
B)
(x + 1 + y)(x - 1 - y)
0
(x - 1 - y) (x - 1 + y)
D)
(x + 1 + y) (x + y + 1)
Answer: A
Step-by-step explanation:
[tex]x^2+2x+1-y^2\\\\=(x+1)^2-y^2\\\\=((x+1)-y)((x+1)+y)\\\\=(x+1-y)(x+1+y)\\\\Answer\ A\\[/tex]
Amy regularly works 20 hours per week at Hook's Dry Cleaners from Monday through Friday. She earns $13.10 per hour and receives double time pay for working Sundays. Next week she will work her regular 20 weekday hours, and an additional 8 hours on Sunday. What will her total gross pay be for the week?
please show work thanks!
Answer:
$471.60
Step-by-step explanation:
The double time rate is not specified in the question. But I will assume it's 2 times the normal rate. Therefore...
13.10 x 20 + 8 x (13.10 x 2)
Answer = $471.60
Easy question pls answer
Which unit is the best for measuring the distance between two cities?
O gram
O kilogram
O centimeter
O kilometer
The best unit for measuring the distance between two cities is kilometer.
Robert wants to buy a digital piano at a yard sale. He makes a scale drawing of his living room. He uses a scale of 1cm in the drawing to 6 inches in the actual room. The width of the digital piano is 54 inches will it fit along the wal. Next to the bookshelf ?
Answer:
It’s 48 just do 8*6=48 I don’t know how I got that answer but Ik it’s right lol
Hi can someone help me with these question ASAP. Thanks. Will mark as brainliest ! Show working out too
Answer:
ok bro this is kinda hard to show on here cuz you cant add a unit circle. any other ways?
Step-by-step explanation:
What is the solution to this system of equations?
( __ , __ )
Answer:
x = 5
y = 3
(5,3)
Step-by-step explanation:
use substitution...
4x -3(2x-7) = 11
-2x + 21 = 11
x = 5
y = 3
fill in the missing information for the following trapezoids. SHOW YOUR WORK to solve for the missing value.
PLEASE show work!!!!
8. height = 19.8 cm
b1 = ________
b2 = 14.4 cm
area = 401.94 cm2
Answer:
26.2 cm
Step-by-step explanation:
b1 = (2×401.94)/19.8 - 14.4
= 40.6 - 14.4 = 26.2 cm
Write 63 as a product of as many factors a possible. Do not use 1 as a factor.
Answer:
7 x 9 = 63 7 is a FACTOR of 63
9 is a FACTOR of 63
7 and 9 are even DIVISORS of 63
63 is a MULTIPLE of 7 and 9
63 is a PRODUCT of 7 and 9
63 is evenly DIVISIBLE by 7 or 9
Writing 63 as a product of as many factors will be: 7 × 9, 3 × 21, 9 × 7 and 21 × 3.
The factors of 63 include 1, 3, 7,9, 21 and 63.
Since we've been given the information that we should not use 1 as a factor when multiplying according to the question, then the 63 as a product of its factors will be:
3 × 21 = 63
7 × 9 = 63
9 × 7 = 63
21 × 3 = 63
Read related link on:
https://brainly.com/question/22067581
If a 12 foot ppiece of electrical tape has 5 pieces that are each 1.45 feet cut from it, what is the new length of the tape?
Divide. Write your answer as a FRACTION in simplest form.
−7/10 ÷ 2/5
Step-by-step explanation:
-7/10 ÷ 2/5 = -7/10 x 5/2 = - 7/4
Answer:
your answer is
[tex]-\frac{7}{4}/[/tex]
Which of the right rectangular boxes shown has the greater volume?
Answer:
A
Step-by-step explanation:
I'm not sure 100% but i hope this still helps a little
I need a table chart for 4n - 3
Hope this help! Everything is in the picture!
Help ill give branliest
Answer:
i flipped the images upside down.
Step-by-step explanation:
R= 8,5
Q=8,7
R=5,9
3.57 x 10
write in standard form
[tex]\huge\text{Hey there!}[/tex]
[tex]\textsf{3.57}\times\textsf{10}^\mathsf{3}\\\\\mathsf{10^3}\\\mathsf{\rightarrow 10\times10\times10}\\\mathsf{\rightarrow100\times10}\\\mathsf{\rightarrow 1,000}\\\\\textsf{3.57}\times\textsf{1,000}\\\rightarrow\textsf{3,570}\\\rightarrow\mathsf{3.57\times10^3}\\\\\huge\boxed{Answer: {\frak{3.57\times 10^3}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
giải phương trình
tan6x nhân tan7x= -1
Recall that
• tan(x) = sin(x) / cos(x)
• sin(x) sin(y) = - 1/2 (cos(x + y) - cos(x - y))
• cos(x) cos(y) = 1/2 (cos(x + y) + cos(x - y))
Then we can write
tan(6x) tan(7x) = (sin(6x) sin(7x)) / (cos(6x) cos(7x))
tan(6x) tan(7x) = - (cos(13x) - cos(x)) / (cos(13x) + cos(x))
Make this replacement in the original equation and simplify:
tan(6x) tan(7x) = -1
- (cos(13x) - cos(x)) / (cos(13x) + cos(x)) = -1
(cos(13x) - cos(x)) / (cos(13x) + cos(x)) = 1
cos(13x) - cos(x) = cos(13x) + cos(x)
2 cos(x) = 0
cos(x) = 0
Solving for x gives
x = π/2 + nπ = (2n + 1)π/2
where n is any integer. However, since 2n + 1 is odd, for any odd multiple of π/2, we would end up with
tan(6 (2n + 1)π/2) = tan((2n + 1)×3π) = tan(odd multple of π/2)
since odd×odd = odd, and cos(odd multiplie of π/2) = 0, which would make tan(6x) undefined.
Therefore there are no solutions to this equation.
Can anyone please help me to find the area of this please
9514 1404 393
Answer:
√35 +3√7 -6 . . . square units
Step-by-step explanation:
The area can be figured a number of ways. The figure can be divided into parts, and the areas of those parts added.
Or, the area of the enclosing rectangle can be found, and the rectangle at upper right that is not shaded can be subtracted from that. We choose the latter.
The overall width is the sum of the given partial widths:
width = (√7 -2) + (2) = √7
Then the area of the bounding rectangle is ...
A = LW = (√5 +3)(√7) = √35 +3√7
The area of the upper right empty-space is ...
A = LW = (3)(2) = 6
Then The area of the shaded figure is ...
√35 +3√7 -6
A company manufactures and sells shirts. The daily profit the company makes depends on how many shirts they sell. The profit, in dollars, when the company sells x x shirts can be found using the function f ( x ) = 7 x − 40. f(x)=7x−40. Find and interpret the given function values and determine an appropriate domain for the function. f ( − 10 ) = f(−10)= , meaning if the company sells shirts, they would make a profit of dollars. This interpretation in the context of the problem. f ( 10 ) = f(10)= , meaning if the company sells shirts, they would make a profit of dollars. This interpretation in the context of the problem. f ( 9.5 ) = f(9.5)= , meaning if the company sells shirts, they would make a profit of dollars. This interpretation in the context of the problem. Based on the observations above, it is clear that an appropriate domain for the function is .
What is the solution set of - lxl= -8?
Answer:
8
Step-by-step explanation:
The absolute value of |x| is x
-x = -8
Distribute the - on the other side but since two negatives make a positive:
- and - = +
x = 8
Hope this helped.
PLEASE HELP ASAPPPPPPPPPPP
[tex]\boxed{\boxed{\sf Area\:of\:the\:figure=10x^4-50x^3+5x^2+246x-196}}[/tex]
Refer to the attachment for calculations.
5. You want to have a pizza party this weekend for some friends and family. You have $48
budgeted for the pizza and plan on having 56 pieces available. A large pizza has 16 pieces and
costs $14. A medium pizza has 12 pieces and costs $10. How many large and medium pizzas do
you need to buy?
Simplify each expresssion. A-i
Answer:
I hope this answer will help you
a)42+(-17) b)8-(-9) c)8(-9) d)-42+(-7)
=42-17 =8+9 =(-72) =-42-7
=25 =17 =-49
e)-2(-3)(-4) f)-18-7 g)(-5)^2 h)-5^2
=-2*12 =-25 =25 =25
=24
i)ans
7
PLEASEE help me please I’m so confused :( marking the first best answer as brainliest
I wrote it roughly.
Hope it helps.
I am sorry.
Answer:
1 look pic
2 1/75
3 21/75 = 7/25
Step-by-step explanation:
hope it help
Please help solve due soon!!
Answer:
2. 7.2
3. (7,6)
4. (6,-7)
sorry but question no 1 i cant answer cause the pic is too blurry
Find the 11th term of the arithmetic sequence -5x + 6, -9x + 11, -13x + 16
Answer:
11th term is -45x+56
Answer:
a_11 = -45x + 56
Step-by-step explanation:
An arithmetic sequence has a constant difference which can be found by subtracting a term from the next term.
constant difference = d = -9x + 11 - (-5x + 6)
d = -9x + 11 + 5x - 6
d = -4x + 5
The nth term of an arithmetic sequence is
a_n = a_1 + (n - 1)d
a_11 = a_1 + (11 - 1)(-4x + 5)
a_11 = -5x + 6 + 10(-4x + 5)
a_11 = -5x + 6 - 40x + 50
a_11 = -45x + 56