Answer:
x=1
Step-by-step explanation:
First, we distribute the 3 to the 8 and the 4x.
Now we have 24-12x=12
Then, we subtract 24 from 12
Now we have -12x=-12
Finally, we devide -12 by -12
Now we have x=1
Hope that helps!
What are the zeros of f(x) = x2 + x - 12?
O A. x= -4 and x = 3
O B. x=-2 and x = 6
O C. =-3 and x = 4
O D. X=-6 and x = 2
Answer:
(x+4)(x-3) or A
Step-by-step explanation:
I'm going to assume that you meant to write x² and not x2
which means we have
x²+x-12
and we need to factor this
to do this we need two numbers that add up to 1 (b) but mulitply to -12 (a*c)
our two numbers are
4, -3
Which means the answer is
(x+4)(x-3)
[tex]{ \large{ \bf{f(x) = x {}^{2} + x - 12}}}[/tex]
[tex]{ \large{ \bf{zeros = \dfrac{ - b± \sqrt{b {}^{2} - 4ac } }{2a} }}}[/tex]
[tex]{ \large{ \bf{zeros = \dfrac{ - 1± \sqrt{1 {}^{} + 48 } }{2} }}}[/tex]
[tex]{ \large{ \bf{zeros = \dfrac{ -1± 7 }{2} }}}[/tex]
[tex]{ \large{ \bf{➢ \: \: zeros = - 4 \: \: and \: 3 }}} \: \: \: \: \: \: (ans)[/tex]
Opt A.) is the answerTo write a percent as a decimal, _____.
Answer:
To convert from a percent to a decimal, divide by 100 (and remove the "%" sign). To convert from a percentage to a decimal, divide by 100 (and remove the "%" sign).
Step-by-step explanation:
To write a percent as a decimal, divide by 100 and remove the %
y = 1/2x + 4
x - y = 8
*Substitution
Answer:
y=16, x=24
Step-by-step explanation:
First simplify: x-(1/2x+4)=8
Isolate x for 1/2x-4=8
Add 4 to both sides:
1/2-4+4=8+4
Simplify :1/2=12
Multiply both sides by 2:
2*1/2x=12*2
Simplify:
x=24
Substitute x=24:
y=1/2*24+4
1/2*24+4=16
1/2*24=12
12+4
Add the numbers: 12+4=16
y=16
The solutions to the systems of equations are:
y=16,x=24
PLEASE HELP! this is due today! Brainlist for right answer!
Answer:
2550.5
Step-by-step explanation:
We have a circle and are asked to find the area.
We know the diameter already, but the formula to find area requires a raidus, which is unknown to us yet.
To find radius, all you need to do is follow [tex]\frac{d}{2}[/tex]. D being diameter.
D = 57.
[tex]\frac{57}{2}= 28.5[/tex]
The radius is 28.5, now do the formula of area.
[tex]A = \pi *r^2[/tex]
[tex]A = \pi *28.5^2[/tex]
[tex]28.5^2[/tex]
[tex]812.25[/tex]
[tex]A=\pi *812.25[/tex]
[tex]A=3.14 * 812.25[/tex]
[tex]A = 2550.465[/tex]
Now we need to round to the nearest tenths, since 6 is the knowledge that we round up, round up.
[tex]2550.5[/tex]
Two boats are on the water at points A and B, and a lighthouse is located at point C. The three points form a
triangle, where BC = 24 kilometers, m_A = 90°, and m_B=45°. Leaving your answer in simplified root form, what is the
distance between the boat at point A and the lighthouse?
Answer:
49
Step-by-step explanation:
i took the quiz and used brainly to check my awnser
What is m∠1?............
the answer is 101
hope that helped
The Math problem is called "Multiply Imaginary Numbers'
How do you solve
(−10√3)(7√−10)
Answer:
-700√3 √-
Step-by-step explanation
(-10√3) (7√-10)
Remove the parentheses
-10√3 * 7√- * 10
Multiply numbers: 10*7*10=700
Answer:
-700√3 √-
Write the equation for "25 more than a number x is the same as 44"
Answer:
25 + x = 44
Step-by-step explanation:
Substitute the words with the math symbols.
25 more than a number x is the same as 44
more than means to +
is the same as means =
25 more than a number x is the same as 44
25 + x = 44
25 + x = 44
Can someone please help me !
Answer: 14
Step-by-step explanation:
1.75x -2 + 1.75x -2 + 1.75x -2 =67.5
5.25x-6= 67.5
5.25x =73 .5
X = 14
Answer:
1.75x-2= -3.14
-3.14 x 1.75= -5.495 -2= -7.495
x=3.14
P=-22.485
Step-by-step explanation:
Can someone plssss help!!
Answer:
x=20 degrees
Step-by-step explanation:
7x+(x+20)=180
8x+20=180
8x=160
x=20
David was thinking of a number. David doubles it, then adds 3 to get an answer of 81.6. What
was the original number?
Answer:
39.3
Step-by-step explanation:
81.6 - 3 = 78.6
78.6 ÷ 2 = 39.3
A composite figure is divided into two congruent trapezoids, each with a height of 4 cm.
What is the area of this composite figure?
A. 32cm
B. 40cm
C. 64cm
D. 80cm
Answer:
the answer is C
Step-by-step explanation:
8. Find the values of x and y. The diagram is not to scale.
50°
120/xº
Do
x = 120; y = 50
x = 60; y = 70
x = 60; y = 60
x = 80; y = 50
Answer:
A
Step-by-step explanation:
An adult leatherback turtle weighs 750 kilograms.
This is approximately 1.5 x 10^4 times its weight when it hatched.
To express the weight of the turtle when it hatched so that the number of units will possible whole number value, which of the following units of measure should be used?
(Note: 1 metric ton = 1,000 kilograms.)
A) Metric tons
B) Kilograms
C) Grams
D) Milligrams
Answer:
the answer is C)
Step-by-step explanation:
answer
B is the answear
Step-by-step explanation:
Solve it step by step using substitution.
y = 2x - 1
y = 5x - 7
Answer: look at the picture
Step-by-step explanation: hope this help
Find the coordinates of the vertex of the following parabola using graphing
technology. Write your answer as an (x,y) point.
y = x2 – 2x - 3
(X2) the 2 pose to be on the top right of x as in power to the 2
(1,-4)
build a table to plot the curve
y=x^2 - 2x - 3
x ¦ y
-2. 5
-1 0
0. -3
1. -4
2. -3
graph from desmos
While studying a population of porcupines, a group of scientists caught and tagged 95 porcupines. A week later, the scientists counted 640 porcupines and saw that 38 of them had tags. To the nearest whole number, what is the best estimate for the porcupine population?
Answer:
Step-by-step explanation:
95/p=38/640
p=95(640)//38
p=1600
HELP ILL GIVE BRAINLYIST
Answer:
560
Step-by-step Explanation
Since, 476 students make 85%.
Therefore, let x students will make 100%.
[tex] \frac{476}{85} = \frac{x}{100} \\ \\ x = \frac{476 \times 100}{85} \\ \\ x = \frac{47600}{85} \\ \\ x = {560} [/tex]
Question # 1 : If Question # 2 : How are lines, rays, and segments different? How are they the same?
Answer:
A line segment has two endpoints. It contains these endpoints and all the points of the line between them. A segment is named by its two endpoints. A ray is a part of a line that has one endpoint and goes on infinitely in only one direction. You cannot measure the length of a ray.
Step-by-step explanation:
An encryption key is used to help decrypt messages. True or False. Explain why
Answer:
True!
Step-by-step explanation:
USE THE ASSOCIATIVE PROPERTY TO ADD THESE FRACTIONS: 1/3 + (1/3 + 1/6) = (____ + _____) + _____= _____
Answer:
(1/3 + 1/3) + 1/6 = 5/6
Step-by-step explanation:
If 7 more boys join the Waverly Waves, how many girls should be added to the team in order to maintain the same ratio of boys to girls? Justify your answer.
Fireworks are set off from a hill 80 feet above the Mississippi. The outer
shells will fall after exploding at its maximum height. The firework's height
about the surface of the river is given by the function h(t) = -16t^2 + 64t +
80. What is the height of the rocket after 1.5 seconds?
Answer:
752 ft
Step-by-step explanation:
Assuming t represents time, and the time we are trying to find is how high the rockets go after 1.5 seconds, we must take the equation and put 1.5 in wherever t occurs, this looks like:
-16(1.5)²+64(1.5)+80
solving this, we get:
-24²+96+80
576+96+80
752
2.
Today, everything at a store is on sale. The store offers a 20% discount.
A.the regular price of a t-shirt is $18.what is the discount price?
Answer:
3.6
Step-by-step explanation:
20% of $18
20/100 x 18 = 180/50 =3 30/50 = 3 60/100 = 3.6
What is the sum of this expression 9x+3 and 6x
Answer:
15x+3
Step-by-step explanation:
its simple math
Answer:
15x+3
Step-by-step explanation:
ILL MARK BRAINLIEST
Directions: Solve the following system of equations using substitution.
Show your complete steps and make sure to have your solution as (x, y).
y = 3x - 5
5x - 4y = -3
why do systems of nonlinear equations sometimes have more than one solution
Answer:
System has equal number of unknowns and equations.
Manipulation easily yielded expressions for 4 of the 7 unknowns.
However it seems that the remaining 3 unknowns x,y,z are not fixed by the equations. Different combinations (x0,y0,z0) seem possible without violating the system equations.
Is this possible, or did I most probably make a mistake in counting degrees of freedom?
Step-by-step explanation:
help please, im confused on what exactly y is
Answer:
3
Step-by-step explanation:
Answer:
Dont understand what the question is?
Step-by-step explanation:
Evaluate and ill change my response..
614 divided by 15??????????
Answer:
122.8 brainliest plzzz
Step-by-step explanation:
Answer:
040
1 5 6 1 4
− 0
6 1
− 6 0
1 4
− 0
1 4
Step-by-step explanation:
40 reminder 14 is the answer
Can somebody help me?
Answer:
The last two
Step-by-step explanation:
x= 0.6·25
60/100= x/25