Answer:
x = -0.5 or 6
Step-by-step explanation:
→ First find the first set of terms in brackets
( 2x + ? ) ( x - ? )
→ Find 2 numbers which multiply to give -6 and subtract to give -11 when multiplied by 2
( 2x + 1 ) ( x - 6 ) = 0
→ Now solve
x = -0.5 or 6
Answer:
x = 6 and -0.5
Step-by-step explanation:
Equation; 2x² - 11x - 6 = 0
a = 2
b = -11
c = -6
Substitute in the values of the equation for the quadratic formula;
-b ± [tex]\sqrt{b^2 - 4ac}[/tex] / 2a
-(-11) ± [tex]\sqrt{(-11)^2 - 4(2)(-6)}[/tex] / 2(2)
11 ± [tex]\sqrt{121+48}[/tex] / 4
11 ± 13 / 4
=> 11 + 13 / 4 = 6
=> 11 - 13 = -0.5
So;
x = 6 and -0.5
Hope this helps!
What is the solution to the system of equations
Answer:
(0,3)
Step-by-step explanation:
solve for 2y
-X-2y= -6
2y=6+2x
substitute the given value of 2y into the equation -x-2y=-6
-x-(6+3x)= -6
solve for x
x=0
substitute the given value of X into the equation 2y=6+3x
2y=6+3×0
solve for y
y=3
the solution is (0,3)
Find all real square roots of 25.
Mark has 10 pens. Kate has 5 times as many pens as Mark.
Which equation below answers how many pens Kate has? (y = number of Kate's pens
10 = 5 × y
10 = 5 + y
y = 5 × 10
y = 10 ÷ 5
Answer:
The third one, y = 5 x 10
Step-by-step explanation:
y = number of Kate's pens, 5 = how many times more pens Kate has than Mark, and 10 = how many pens Mark has.
PLS HELP PLS !!!!!! k
Answer:
The top right is 5,1
top left -4,3
bottom left the one near the -4 is -4,1
and the one below that is -2,5
And last the bottom right is 4,1
Step-by-step explanation:
Your welcome :)
In 2008, the Los Angeles Times asked members of the American public whether free international trade has helped or hurt the economy. Of those surveyed, a.16 percent said free international trade hurt the economy. b.26 percent said free international trade helped the economy. c.57 percent said free international trade helped the economy. d.30 percent said free international trade hurt the economy.
Answer:
Option B
Step-by-step explanation:
Of those surveyed, 26 percent said free international trade helped the economy.
They claimed that trade liberalization and increase in investment in physical capital was the main reason behind the growth of the economy.
Hence, option B is correct
Jodi has two bank accounts. Her parents started Account A for her. It currently has $100 in it, and Jodi deposits $20 into it each month. Jodi's grandparents started Account B for her. It ccurently has $300 in it, and her grandparents deposit $40 into it each month.
Account A is modeled by the function f(x)=20x+100
and Account B is modeled by the function g(x)=40x+300
, where x
represent the number of months from now.
Write a new function (f+g)(x)
that represents the total amount of money Jodi has in both accounts. Simplify your answer.
Answer: [tex]60x+400[/tex]
Step-by-step explanation:
Given
Account A can be modeled by [tex]f(x)=20x+100[/tex] and
Account B can be modeled by [tex]g(x)=40x+300[/tex]
So, the function that represents the total amount of money Jodi has can be modeled by
[tex]\Rightarrow (f+g)(x)=20x+100+40x+300\\\Rightarrow (f+g)(x)=60x+400[/tex]
i need help with 3x + 1 >_ 22=
Answer:
x>7
Step-by-step explanation:
help me please!!!!!!!
Answer:
Step-by-step explanation:
julie has 28 cards
gene has 14 cards
sharon has 19 cards
intotal they all have 61 cards
A droga da amizade.
1 como Miguel conheceu o calú?
2. Como Miguel começou a turma dos karas?
3. Qual rumo cada personagem tomou?
4. Quem criou o código morse no livro A droga da amizade?
5. Como os kara se conheceram
6. Porque Andrade era um policial diferente, melhor do que qualquer outro?
7. E o que terá acontecido com eles depois de todas as aventuras que este 7 heróis viveram?
8. Como cada um deles demonstrou ao líder dos karas que era uma pessoa especial, tanto pela coragem, quanto pela honestidade, pelo caráter e pelo seu desejo de mudar o mundo para melhor?
9. Faça uma breve sinopse da história lida.
POR FAVOR ME AJUDEM PRECISO DISSO PARA HOJE OU AMANHÃ.
11/06
Tô colocando matéria com matemática mas é português não tem opção!!!!!:(
Answer: yes because of what is given
Step-by-step explanation: Exactly.
Một ủy ban an toàn kiểm tra ngẫu nhiên 900 công nhân xây dựng trong thời gian làm việc, thấy có 48 công nhân không mang mũ bảo hộ. Hãy ước lượng tỷ lệ công nhân không mang mai bảo hộ trong thời gian làm việc với độ tin cậy 98%
Answer:
The percentage of workers not wearing the helmets is 5.3 %.
Step-by-step explanation:
A safety committee randomly examined 900 construction workers during their work, and found that 48 workers were not wearing helmets. Estimate the percentage of workers who do not wear protective masks during their working time with 98% confidence
total workers = 900
Not wearing helmet = 48
Percentage which are not wearing the helmets
= [tex]\frac{48}{900}\times 100 = 5.3 %[/tex]%
Which of the following statements are true? Check all that apply.
What is the perimeter of the right triangle?
Answer:
Right triangle is 3 by 4 by
square root of (3^2 + 4^2) = 5
perimeter = 3+4+5 = 12
Step-by-step explanation:
for the equation y=1-2x,find the value of y when
(a)x=-4,
(b)x=-2,
(c)x=0,
(d)x=2.
Step-by-step explanation:
1st answer y=1-2×-4
y=1+8
y=9
2nd answer y=1-2×-2
y=1+4
y= 5
3rd answer y=1-2×0
y=1-0
y=1
4th answer y=1-2×2
y=1-4
y=-3
f(x) = |7x + 1|– 8
g(x) = -2
Find (f - g)(2).
O A. (f – g)(x) = |7x] – 5
B. (f - g)(x) = 172 – 7 + 2
O c. (f – g)(x) = 17x +11 – 6
O D. (f - g)(x) = 17x – 5||
Answer:
f-g)(x)= | 7x + 1 | -6 Is correct
Step-by-step explanation:
Functions f(x) and g(x) are illustrations of composite functions.
The value of (f - g)(x) is |7x + 1| - 6
The functions are given as:
[tex]\mathbf{f(x) = |7x +1|- 8}[/tex]
[tex]\mathbf{g(x) = -2}[/tex]
The function (f - g)(x) is calculated using:
[tex]\mathbf{(f - g)(x) = f(x) - g(x)}[/tex]
So, we have:
[tex]\mathbf{(f - g)(x) = |7x + 1| - 8 - (-2)}[/tex]
Remove bracket
[tex]\mathbf{(f - g)(x) = |7x + 1| - 8 +2}[/tex]
Simplify
[tex]\mathbf{(f - g)(x) = |7x + 1| - 6}[/tex]
Hence, the value of (f - g)(x) is |7x + 1| - 6
Read more about composite functions at:
https://brainly.com/question/20379727
Evaluate the expression when g=8 and h=7.
4g-h
Answer: 25
Step-by-step explanation: you replace the letters with the numbers, so it would be:
4(8) - (7)
32-7
=25
Given
m∠LOM = 51° and m∠LON = 133°,
find the measure of ∠MON.
HELPPP PLEASEE
Answer:
m<MON = 82degrees
Step-by-step explanation:
According to the given question;
m<LON = m<LOM + m<MON
m<MON = m<LON - m<LOM
m<MON = 133 - 51
m<MON = 82degrees
pleaseeeeee help!!!!!!!!!
Answer:
x = 3
Step-by-step explanation:
Formula
CE * DE = AE * BE
Notice how the chords cut each other. Also notice how the segments are equated. See the givens.
Givens
CE = 3
DE = x + 11
AE =x+3
BE = 7
Solution
3*(x + 11) = 7(x + 3) Remove the brackets
3x + 33 = 7x + 21 Subtract 21 from both sides
3x + 33 - 21 = 7x Combine the left
3x + 12 =7x Subtract 3x from both sides
12 = 7x - 3x
12 = 4x Divide by 4
12/4 = 4x/4
x = 3
WILL MARK BRAINILIEST
are the angles corresponding, alternate interior, alternate exterior, or constructive interior
they are alternate interior angles
Answer:
The answer is constructive interori
Step-by-step explanation:
3
0
5
3
7
4
11
6
O A. {-3,0,3,4,5,6,7, 11}
O B. (-3,4,5,7}
O C. {3, 5, 7, 11)
O D. {-3, 0,4,6}
Answer:
A. {-3,0,3,4,5,6,7, 11}
Step-by-step explanation:
I'm prettybsure that A is the range because the range of numbers goes from -3 to 11
Find the co-ordinates of the points where the line represented by the linear equationy = 2x -4 intersects x-axis and y-axis.
Step-by-step explanation:
x-intercept => point (2, 0)
y-intercept => point (0, -4)
If is an angle in quadrant II, what is the value of ?
What if I don’t have a opposite in my trigonometry is it Sah Coh or toa
Answer:
Without an opposite, the only operation that can be used is C a/h or Cos Adjacent/ Hypotenuse
Answer:
sah
Step-by-step explanation:
Which of the following is the function f(x) if f^-1(x) = 5x - 19?
A. f(x) = x - 19 over 5
B. f(x) = x + 19 over 5
C. f(x) = 5x + 19
D. f(x) = x over 5 + 19
Answer:
number of A is correct answer
Which number is located to the right of on the horizontal number line?
A. - 1 1\3
B. - 2 1/3
C. - 2 2/3
D. 3- 1/3
Answer:
D. 3- 1/3
Step-by-step explanation:
3-1/3 = 2 2/3 which is positive, thus being on the right side of the number line.
Hope this helps! :)
I know i’m asking a lot of questions but help me please. Is this correct?
Answer:
Option A
Step-by-step explanation:
ok so firstly this is super duper easy! all you have to see first in these type of questions is the "sequence" or the "pattern". and you have to make a ittle equation with this, so the first picture has 1 square, secound one has 5, the third one has 9, and the fourth one has 13.
- so firstly see or find a specific sequence.
13 - 9 = 4
9 - 5 = 4
5 - 1 = 4
so we found out "4" is the main changing unit. Now lets make a short formula which will help us determine any number ahead of the picture.
so lets do 4x = number of squares, x= figure number
4(1) = 4 :: wrong, because the first figure has only one square
so, 4x - 3
4(1) - 3 = 1 :: correct! this euqation works!
Now, we need to find how many squared there are in figure 100, so ->
4(100) - 3 = 397 squares!
and now doing the question will be easier, because option A says 1 square in the centre and 99 sqaures on each side.
So-> 99 + 99 + 99 + 99 +1 = 397! boom!! got the answer!
Find the area of the shape below. GUS PLEASE HEL
Answer:
122 squared cm
Step-by-step explanation:
[tex]6*12=72[/tex]
[tex]10*5=50[/tex]
[tex]72+50=122[/tex]
Hope this helps
Answer:
122 squared cm
Step-by-step explanation:
First we split the figure into 2
12 x 6
And,
10 x 5
12 x 6 = 72
and
10 x 5 = 50
Now we add 72 + 50 = 122
Hey, I WANT A BESTIE PLEASE (imagine I put the lightskin face emoji)
Answer:
Heyy
Step-by-step explanation:
The perimeter of the scalene triangle is 54.6 cm.
*pretend this is the triangle
3a, a b
Which equation can be used to find the value of b if side a measures 8.7 cm?
A. 8.7 + b = 64.6
B. 17.4 + b = 54.6
C. 21.6 + b = 54.6
D, 34.8 + b =54.6
Answer:
D, 34.8 + b =54.6
[tex]perimeter = s + s + s \\ 54.6 = 3a + a + b \\ 54.6 = 4a + b \\ (4 \times 8.7) + b = 54.6 \\ 34.8 + b = 54.6[/tex]
[ Easy Math ] Help me pls
Answer:
1) you're going to have to flip the coins (or fake numbers) for the experimental trials.
2) for the theoretical, there is 1/2 chance for heads or tails with each toss, so you'd expect that out of 10 tosses, 5 heads, 5 tails. out of 100 tosses- 50 heads, 50 tails.
When tossing 2 coins- 1/2×1/2 = 1/4 (25%) chance that 2 heads, 2 tails, or 1 heads & 1 tails. Deviation value comes from after you done your flipping and recorded your data. So if on 100 flips you actually got 50 and 50 (rarely us that exact ;), the deviation from the expected of 50/50 would be 0.00. If however you flipped 100 heads or 100 tails (impossible), then the deviation value would be 1.00.
|(100-50)| ÷ 50 = 50÷50 = 1.00
So usually you may have data like: 47/53 or something a little off than 50/50, making deviation |(47-50)| ÷ 50 = 3÷50 = 0.06.
Now the number of flips is important for the outcome! So if a coin toss if 10 times had 4 heads, 6 tails, the deviation value would be:
|(4-5)| ÷ 5 = 1÷5 = 0.20
So increasing the # flips DECREASES the deviation value!!
Whether it's from 10 to 100, or from 100 to 200. Look at my example of how the 10-flip deviation of 0.20 decreased to 0.06 with 100-flip
Select the correct answer.
Consider this equation.
cos(9) =
V11
5
If & is an angle in quadrant I, what is the value of sin(0)
OA.
V14
5
B.
154
11
OC.
14
5
0D.
154
11
Answer:
c
Step-by-step explanation:
because x=9
Aan angle in quadrant I, the value of sin[tex]\theta[/tex] is [tex]\rm Sin \theta=\dfrac{\sqrt{14} }{5}[/tex].
What is the sin theta?Sin theta is defined as the ratio of perpendicular and hypotenuse.
The given equation is;
[tex]\rm Cos\theta=\dfrac{\sqrt{11} }{5}[/tex]
The cos[tex]\theta[/tex] is given by;
[tex]\rm Cos\theta=\dfrac{Base}{hypotenuse}[/tex]
By applying Pythagoras theorem the value of base is;
[tex]\rm (5)^2=Perpendicular^2+ (\sqrt{11} )^2\\\\ Perpendicular^2= 25-11\\\\ Perpendicular^2=14\\\\ Perpendicular =\sqrt{14}[/tex]
The value of sin[tex]\theta[/tex] is;
[tex]\rm Sin \theta=\dfrac{Perpendicular}{Hypoteunse}\\\\Sin \theta=\dfrac{\sqrt{14} }{5}[/tex]
Hence, the value of sin[tex]\theta[/tex] is [tex]\rm Sin \theta=\dfrac{\sqrt{14} }{5}[/tex].
Learn more about trigonometry here;
https://brainly.com/question/26719838
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