Answer:
si, por qué ecuación da diferente resultado
PLEASE HELP I WILL MARK YOU BRAINLIEST determine the exact and approximat solutions for 4(x + 5)^2 = 21 show your steps
Answer:
x = − 5 + 1/2 √ 21 or x = − 5 + − 1/2 √ 21
Step-by-step explanation:
Let's solve your equation step-by-step.
4(x+5)^2=21
Step 1: Simplify both sides of the equation.
4x^2+40x+100=21
Step 2: Subtract 21 from both sides.
4x^2+40x+100−21 =21−21 4x^2+40x+79=0
For this equation: a=4, b=40, c=79
4x^2+40x+79=0
Step 3: Use quadratic formula with a=4, b=40, c=79.
x= −b±√ b^2−4ac/2ax
= −(40)+√ (40)^2−4(4)(79)/2(4)
x = 40^2±√ 336/8
x= −5+1/2 √ 21 or x = −5+ − 1/2√ 21
Answer: x = − 5 + 1/2 √ 21 or x = − 5 + − 1/2 √ 21
( I hope this was helpful) >;D
What is the value of n?
Your answer in the box n=
5m 15m n 2m
Answer:
12.5
Step-by-step explanation:
because it's a progress
Solve a-3=13
What is Z
Answer:
a = 16 hope this helps
Step-by-step explanation:
PLS HELP!! URGENT!!
PLS HELP ASAP
Answer:
a.
perimeter of rectangular = 2 times length + 2 times wide = 2L + 2W = 2 (L + W)
since L is x m and W is y meter, then
perimeter = 2 (L + W) = 2 (x + y)
p = 2(x + y)
(the correct is actually this one
70 ≤ 2(x+y) ≤ 96
b. minimum perimeter
to find minimum perimeter, use the minimum length (which is 20) and minimum wide (which is 15)
p(min) = 2 * ( x(min) + y(min))
p(min) = 2 * (20 + 15)
p(min) = 2 * (35) = 70
c. maximum perimeter
to find maximum perimeter, use the maximum length (which is 30) and maximum wide (which is 18)
p(miax) = 2 * ( x(max) + y(max))
p(max) = 2 * (30 + 18)
p(max) = 2 * (48) = 96 m
Which student has the greater median test score?
Answer:
amy, since the middle term is further up the graph
Step-by-step explanation:
median is the middle term, amy's middle term is further
I need help PLEASE . Number four, what’s the answer and please explain
One large bubble separates into four small bubbles so that the total area of the small bubbles is equal to the area of the large bubble. Each small bubble has a radius of 5 centimeters. What is the radius of the large bubble?
Answer:
R = 10 cm
Step-by-step explanation:
The area of a spherical shape is given by :
[tex]A=4\pi r^2[/tex]
Where
r is the radius of the sphere
ATQ,
One large bubble separates into four small bubbles so that the total area of the small bubbles is equal to the area of the large bubble.
The radius of each small bubble is 5 cm
Using the given condition,
[tex]4\pi R^2=4\times (4\pi r^2)\\\\R^2=4r^2\\\\R=\sqrt{4r^2} \\\\R=2r\\\\R=2\times 5\\\\R=10\ cm[/tex]
So, the radius of the large bubble is equal to 10 cm.
Answer:
20cm
Step-by-step explanation:
5cm+5cm+5cm+5cm=20cm
a university directory has 25 pages filled with students' names. There are a total of 15,050 names in the directory. Each page has an equal number of names. How many names are on each page?
p l e a s e h e l p ; - ;
Find the measure of the angle indicated... please help
Answer:
Step-by-step explanation:
41). Measure of an external angle of a triangle is equal to the sum of teh opposite two angles.
140° = (13x + 9)° + (5x + 5)°
140 = 18x + 14
18x = 140 - 14
18x = 126
x = 7
m∠R = (13x + 9)
= 13×7 + 9
= 100°
42). m∠DCA = m∠E + m∠D
126° = (6x + 2)° + (5x + 3)°
126 = 11x + 5
11x = 126 - 5
11x = 121
x = 11
m∠D = (5x + 3)
= 5(11) + 3
= 58°
43). m∠DPQ = m∠Q + m∠R
11x + 3 = 70° + (x + 13)°
11x + 3 = x + 83
11x - x = 83 - 3
10x = 80
x = 8
m∠R = (x + 13)
= 21°
44). m∠QST = m∠T + m∠U
13 + 13x = 100 + (3x + 3)
13 + 13x = 3x + 103
13x - 3x = 103 - 13
10x = 90
x = 9
m∠U = 3x + 3
= 3(9) + 3
= 27 + 3
= 30°
The area of a circle is 100 pi ft2. What is the circumference, in feet? Express your
answer in terms of pi
Answer:
314 ft²
Step-by-step explanation:
(100 × pi) ft²
100 × 3.14 ft²
314 ft²
This graph shows two lines, A and B
based on the graph which statement is correct about the solution to the system of equations for lines A and B
(4,4) is the solution to line A but not to line B.
(4,4) is the solution to both lines A and B.
(5,1) is the solution to line B but not to line A
(0,2) is the solution to both lines A and B
Answer:
The answer is B. (4, 4) is the solution to both lines A and B. I took the test and got 100% your're welcome!
Step-by-step explanation:
pls answers, my test in 20 mins
Answer:
1) 10r
2) 5h
3) 7+2d
4) 15ey
5) 5e * 4y = 20ey
6) 4r+10s
7) 7z
8) 36p^2
9) 16r^2
Step-by-step explanation:
HELP ASAP!
How much NaBr solute is saturated at 70 degrees?
A.
110
B.
B.120
C.
130
D.
140
120l NaBr solute is saturated at 70 degrees. In this case option b is correct when saturated at 70 degrees.
NaBr is the chemical formula for sodium bromide. It is an inorganic compound composed of sodium (Na) and bromine (Br). Sodium bromide is a white, crystalline solid that is highly soluble in water.
In terms of its properties and uses, sodium bromide has various applications. It is commonly used in the pharmaceutical industry as a sedative and anticonvulsant drug. Sodium bromide is also used in the oil and gas industry as a completion fluid in well drilling and workover operations. Additionally, it finds applications in photography as a component of some film developers.
As a salt, sodium bromide dissociates into sodium ions (Na+) and bromide ions (Br-) when dissolved in water. These ions can participate in various chemical reactions and have different effects depending on the specific application or purpose.
To know more about "solute." here
https://brainly.com/question/25326161
#SPJ2
A
49. OO at the right is inscribed in square ABCD and circumscribed
about square PQRS. Which is smaller, the blue region or the yellow
region? Explain.
P
s
R
50. Circles T and U each have radius 10 and TU = 10. Find the area of the
region that is contained inside both circles. (Hint: Think about where T
and U must lie in a diagram of OT and OU.)
I need help on the same one!!
Can someone round these to the nearest .1
1.602564102564103
2.380952380952381
Answer:
1.6; 2.4
Step-by-step explanation:
five or more round up
4 or less leave as is
Together Jason and Judy have read 24 mystery novels. Judy has read less than three times as many as Jason. How many mystery novels have each of them read.
Omitted / Incomplete Question : Judy has read 4 Less than three times as many as Jason
Answer:Jason has read 7 mystery novels and Judy has read 17 mystery novels
Step-by-step explanation:
Total number of mystery books read by Jason and Judy =24
Let Number of mystery books read by Jason=x
and Number of mystery books read by Judy= 3x-4
So that the total number of book read by both of them will be expressed as
x +(3x-4) =24
x +3x-4 =24
4x=24+4
4x=28
x=28/4=7
There fore Jason has read 7 mystery novels
and Judy = 3x-4 = 3 X 7- 4 =21-4=17mystery novels
cat face x+4/5=45 sa il aflu pe x
Given:
The equation is
[tex]x+\dfrac{4}{5}=45[/tex]
To find:
The value of x.
Solution:
We have,
[tex]x+\dfrac{4}{5}=45[/tex]
Isolating the variable, we get
[tex]x=45-\dfrac{4}{5}[/tex]
[tex]x=\dfrac{225-4}{5}[/tex]
[tex]x=\dfrac{221}{5}[/tex]
[tex]x=44.2[/tex]
Therefore, the value of x is 44.2.
A fan has 5 congruent blades that are spaced equally as shown below.
What is the measure of the angle of rotation if blade M moves clockwise to the position of blade P?
9514 1404 393
Answer:
d 72°
Step-by-step explanation:
Moving from M to P, the fan has rotation 1/5 of the way around the 360° circle. Its angle of rotation is ...
360°/5 = 72°
In a triangle, the measure of two angles is 95° and 55°, then the third angle is
the correct answer will get brainliest
Answer:
30
Step-by-step explanation:
angles in a triangle add up to 180, so:
let x be the third angle
[tex]x+95+55=180\\x + 150 = 180\\x = 30[/tex]
If JKLM is an isosceles trapezoid, find each value listed below. Help ASAP !!
Maria es una estudiante de la seccion 7-9 que le gusta leer mucho. Actualmente lee un libro que tiene 288 paginas, silee 12 paginas por dia, en cuanto tiempo leera maria todo el libro
Responder:
24 días
Explicación paso a paso:
Dado que:
Total de páginas = 288
Número de páginas leídas por día = 12
Número de días que se necesitarán para leer el libro completo:
Total de páginas / número de páginas leídas por día
288/12
= 24
Por lo tanto, a María le tomará 24 días leer el libro completo, si lee 12 páginas del libro por día.
Composite Figures Question 2.
A. 74 ft
B. 24 ft
C. 81 ft
D. 69 ft
Write an expression equivalent to m+m+m+m that is sum of two terms
the answer is 4m
and 2 plus 2 is 4
i don't know if I'm right
Rationalize the denominator. I just don't get it. Please help.
∛(5x/3y)
Answer:
Uh, this isnt solvable, you sure u got the right problem???
Step-by-step explanation:
in a class of 80 students every student studied economic or geography or both If 65students study economic and 50students study geography how many students study both subjects
Find the number of two digit numbers which are
divisible by 6
Answer:
36 ÷ 6 = 12
24 ÷ 6 = 4
12 ÷ 6 = 2
Step-by-step explanation:
There are way more numbers that can be divised by 6 but these can be chosen.
Answer:
15.
Step-by-step explanation:
These are:-
12, 18, 24 , ........... 96
There are (96 - 12) / 6 + 1 =
= 14 + 1
= 15.
Helpppppppppppp plz helpppppppppppppp
Answer:
trueeee :) that is my answer
hey....lol i need help on this
Answer:
W = 32
Step-by-step explanation:
lol.
like terms have the same _____ with the same _______
Answer:
like terms have the same VARIABLES with the same POWER
:)
Answer:
Variables; Powers
Step-by-step explanation:
Like terms have the same variables with the same powers. Eg:-
[tex]3 {x}^{2} \: and \: 9 {x}^{2} [/tex]
These are like terms as they both have the same variables and powers
Can someone please give me the correct answer.
I will mark you brainliest
This is a big test
Solve the problem by finding x
Answer:
x=55
Step-by-step explanation:
All the sides of a triangle add up to 180
100+25=125
180-125=55
X=55 Hope this helps