Answer:
Step-by-step explanation:
Complete the square
[tex]x^{2}[/tex] + 2x - 13 = 0
[tex]x^{2}[/tex] + 2x = 13
[tex]x^{2}[/tex] + 2x + [tex]1^{2}[/tex] = 13 +1 (take 1/2 of the b term , the 2 )
[tex]x^{2}[/tex] + 2x + 1 = 14
(x +1)^2 = 14
Answer:
Complete the square:
x² + 2x - 13 = 0x² + 2x + 1 - 14 = 0(x + 1)² - 14 = 0(x + 1)² = 14x + 1 = ± √14x = -1 ± 3.74x = 2.74, x = -4.74Please explain how to convert from mixed surds to entire surds.
by process:
√×=n√an×x
hope itz helpful
trigonometry. please help
Answer:
C) 3/5
Step-by-step explanation:
Have you heard of this way to memorize the trig ratios?
SOH-CAH-TOA (Say it out loud so you remember it.)
It represents these ratios:
Sine = opposite side / hypotenuse
Cosine = adjacent side / hypotenuse
Tangent = opposite side / adjacent side
In this problem, cos C = adj / hyp = BC / AC = 24 / 40.
That simplifies to 3/5
Help ASAP no links
Find all the missing elements:
A
A
C = 120°
b = 5
c= 11
A А
b C
A = [?]° B = [ ]º a = [ ]
Round to the nearest tenth.
!HELP I'M GOING TO FAIL! Find the missing horizontal side. Vertical side, and area of the playground.
Answer:
Horizontal side: 7 ft
Vertical side: 12 ft
Area: 286 ft
Step-by-step explanation:
horizontal: 25 - 18 = 7
vertical: 10 + 2 = 12
area= (25x12) - (2x7) = 286
How to solve the following question attached?
Answer: AB=21.88 mm, BC=51.54 mm
Step-by-step explanation:
Given
[tex]\angle A=67^{\circ}[/tex]
[tex]AC=56\ mm[/tex]
The other two sides can find out using trigonometry
[tex]\Rightarrow \sin 67^{\circ}=\dfrac{BC}{AC}\\\\\Rightarrow \sin 67^{\circ}=\dfrac{BC}{56}\\\\\Rightarrow BC=56\sin 67^{\circ}\\\Rightarrow BC=51.54\ mm[/tex]
Similarly, for AB
[tex]\Rightarrow \cos 67^{\circ}=\dfrac{AB}{AC}\\\\\Rightarrow \cos 67^{\circ}=\dfrac{AB}{56}\\\\\Rightarrow AB=56\cos 67^{\circ}\\\Rightarrow AB=21.88\ mm[/tex]
Angle C is given by
[tex]\angle C=90^{\circ}-67^{\circ}\\\angle C=23^{\circ}[/tex]
11x8½= i need help plzz
Should I simplify? Get the factor? Multiply? Evaluate? Can you tell me?
Please help with this questions.
Answer:
11 m= 3 12 slope is 4 and y intercept is 2
Step-by-step explanation:
11 slope = gradient of a line formulae y2-y1 / x2 - x1
12-6 / 4-2 =3
12 slope is the gradient so and is found as m in the equation y=mx + c
so 4 is the slope and the y intercept is where x= 0 so y = 2
Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
the 3rd option (36, 48, 60)
Step-by-step explanation:
i used a²+b² = c²
What is the value of the expression: 5(3 - 70) when b = 2? Show work.
Answer:
-335
Step-by-step explanation
5x3=15
5x70=350
15-350= -335
since there is no b in your question this is the answer but if there is I might edit this
Consider the following data set:
0, 10, 12, 3, 13, 7, 2,5
Find the median.
Answer:
Sort them from lest to greast
0, 2, 3, 5, 7, 10, 12, 13
the median is 6
the lower quartile is (0, 2, 3, 5)
the upper quartile is (7,10,12,13)
Step-by-step explanation:
Anyone help pls no links!! Only help me on #8 plss
Answer:
90
Step-by-step explanation:
First you do s^2. In this case s is 3 and 3x3=9. Then multiple 9 by r. 9x2=18. Finally, multiply 18 by t. 18x5=90. The solution is 90
Step-by-step explanation:
4.5(9+d)-6
5(9+3)-65×12-6546.3h-j
3×8-11138.r(s)²(t)
2(3)²(5)2×9×590hope it helps.
1. A box has square ends. Its length is 13 cm longer than its width and the volume of the box is 60 cubic centimeters. What are the dimensions of the box?
Answer:
2 cm
Step-by-step explanation:
Given that
The length is 13 cm longer than its width
And, the volume of the box is 60cm^3
We need to find out the dimension of the box
Since the box has square ends
So,
the height is equivalent to the width
Let us assume the width be W so the height also be W
Now the length is W + 13
The volume is
W × W × (W + 13) = 60
After solving this W is 2 cm
Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) - CC). Which
expression represents P(x), if R(I) = 224 – 3x3 + 2x – 1 and C(x) = 24 – + 22 + 3?
3.14 - 31" - 22 + 4x + 2
** _ 3.7? _ 22 +42 + 2
I _ 313 + x² - 4
208_32
I NEED HELP ASAP
Answer:
Step-by-step explanation:
Profit, P(x), is the difference between revenue, R(x), and cost, C(x)
R(x) = 2x^4 - 3x^3 + 2x - 1
C(x) = x^4 -x^2 + 2x + 3
Substituting into the equation
P(x) = R(x) - C(x)
= (2x^4 - 3x^3 + 2x - 1) - (x^4 -x^2 + 2x + 3)
= x^4 - 3x^3 + x^2 - 4
The answer is the lower left option.
Answer:
[tex]P(x)=x^4-3x^3+x^2-4[/tex]
(This is the option found in the lower-left corner)
Step-by-step explanation:
When given the following functions,
[tex]R(x)=2x^4-3x^3+2x-1[/tex]
[tex]C(x)=x^4-x^2+2x+3[/tex]
The problem asks one to find ([tex]P(x)[/tex]), moreover, one is given the following information,
[tex](P(x))=(R(x))-(C(x))[/tex]
Substitute,
[tex]P(x)=(2x^4-3x^3+2x-1)-(x^4-x^2+2x+3)[/tex]
Simplify, multiply everything in the second parenthesis by the negative sign outside of it,
[tex]P(x)=2x^4-3x^3+2x-1-x^4+x^2-2x-3[/tex]
Combine like terms, only operations between coefficients of the same variable with the same degree (exponent) can be performed,
[tex]P(x)=x^4-3x^3+x^2-4[/tex]
!!!PLEASE HELP WILL MARK BRAINLIEST!!!
The Area of a Circular plate is 625π square inches. If the Radius of the plate is tripled, what is the area of the new circle?
A) 1090π in. squared
B) 1270π in. squared
C) 6715π in. squared
D) 5625π in. squared
Answer:
5625in²
Step-by-step explanation:
Area=3.14r2
625=r²
r=25in
25x3=75
75²x3.14
I would like a little help please.
Gru has 20 minions. The minion population increases by 20 each week. El Macho has 80 evil minions. His population decreases by 10 minions each week. When will they have the same number of minions? How many minions??
x:
y:
solution:
system:
meaning of solution:
What is the mean absolute deviation of the following data: 61, 63, 64, 68, 70, 76 ROUND TO THE NEAREST HUNDREDTH Single line text.
Answer:
4.33 infinity.
Step-by-step explanation:
The infinity should just be a line over the 3's
Answer:
4.33
Step-by-step explanation:
First, find the mean value.
Mean = 67
61 - 67 = |-6| = 6
63 - 67 = |-4| = 4
64 - 67 = |-3| = 3
68 - 67 = 1
70 - 67 = 3
76 - 67 = 9
Add: 6 + 4 + 3 + 1 + 3 + 9/6 = 4.33333333333
4.33333333333 rounded to the nearest hundredth = 4.33
Helppp I’m on a math test
option (D) 28 √6 is the answer
Explanation :
p =3√6 + 2√24 + 7√54
3√6 + 2√2×2×6+ 7√3×3×6
3√6 +2 ×2√6 + 7 ×3√6
3√6 +4√6 + 21√6
28√6
What is the value of x in the equation One-third x minus two-thirds = negative 18?
Answer:
-52
Step-by-step explanation:
Tim has 5 yellow and 10 blue marbles in a bag. What is the probability of randomly choosing a yellow marble from the bag?
Helppp pleaseee!!!!!!!
Answer:
1234567891011121314151617181920
Step-by-step explanation:
2k – 6 = 12
whats the answer
Answer:
k=9 is the answer
Add 6 on each side then gives you 2k=18
then 2 divided by 18 is 9
ILL BRAINLIEST YOU IF YOU GET IT RIGHT PLEASE HELP
Answer:
B
Step-by-step explanation:
I am smart
Answer:
B
Step-by-step explanation:
A translation is a type of transformation that moves each point in a figure the same distance in the same direction.
A recipe requires 4 cups of flour to make 12 servings and 7 cups of flour to make 21 servings. How many cups of flour is needed to make 18 servings
Answer:
6
Step-by-step explanation:
to get cups to servings multiply by 3
if you need 18 servings then divide by 3
Find the missing term of the following arithmetic sequence.
...5,_?_,29, ...
Answer:
13, 21
Step-by-step explanation:
d = (29 - 5)/3
d = 8
5 + 8 = 13
13 - 8 = 21
Identify the slope and the y-intercept of the following equation:
y = -7x + 12
Slope:
Y-Intercept:
Answer:
Slope =-7, y intercept =12
Step-by-step explanation:
y-Mx+b where m is slope and b is y-intercept.
Slope is -7
y intercept is 12
This question is kinda confusing I need help
Answer:
D) p³ + 2; when p = 3 the number of plants is 29.
Step-by-step explanation:
Illiana cubed (³) the number of original plants, p, in the garden. Then, she added 2 more plants. We will use n for the number of total plants.
So, the equation should be p³ + 2. Substitute our value for p into the equation and solve.
p³ + 2 = n
3³ + 2 = n
27 + 2 = n
29 = n
There are 29 total plants.
The answer, then, is the last option, p³ + 2; when p = 3 the number of plants is 29.
Good luck ^^
Can someone help please
Answer:
sorry i dont know
Step-by-step explanation:
Answer:
Sorry for the long wait i was taking my cumulative exam for precal and it took a bit but i hope im correct. My brain is fried and dont know if i even came close.
what number is this?5·10²+3
Answer:
503
Step-by-step explanation:
10 squared is 100
so you get 5x100+3
multiply 5x100 to get 500
add 500+3 and you get 503
Answer:
5.03*10^2 in Scientific notation
503 in expanded form
2^x = 1/2
A:-1
B:-1/2
C:1
Help me out please???