Simplify
a(2a - 3) + 6(a - 0.5) - (2a^2 - 5)
Answers
Answer:
The answer to your question is 3a+2
Answer:
3a +2
Step-by-step explanation:
a(2a -3) +6(a -0.5) -(2a^2 -5)
rewrite to all show terms and operations:
a * (2a -3) + 6 * (a - 0.5) -1 * (2a^2 -5)
distribute:
2a^2 -3a +6a -3 -2a^2 +5
combine like terms:
-3a +6a -3 +5
3a+2
Related Questions
PLEASE HELP!! Need help with my homework!
Answers
Answer:
Line segment: AD (without arrow)
Ray: BA (with one sided arrow)
Rays with common endpoint: AC and AD (with one sided arrow)
Intersection: AE (double sided arrow)
Collinear points: B, A, C
PLEASE MARK AS BRAINLIEST
Find the slope, if it exists, of the line containing
(-8,-5) and (-19,- 13)
Answers
Answer: 8/11
Step-by-step explanation:
To find slope you can use this formula:
y2-y1/x2-x1
substitute the values with the ones from the 2 points
-13-(-5)= -8
-19-(-8)=-11
you then divide -8/-11
and you get 8/11
8/11 is the slope of those 2 points.
Please explain how this diagrams works
Answers
Answer:
x = 21°
Step-by-step explanation:
opposite angles are equal
therefore, (3x + 1)° = 64°
open the brackets
3x + 1 = 64
3x = 64 - 1
3x = 63
divide both sides by 3
x = 21°
Help ASAP I will give 20 pionts!
Answers
solve for p in the literal equation 8p+5r=q
Answers
PLEASE HELP
Twice a number n is at least 30
Answers
Answer: n = 15
Step-by-step explanation: 2x15 = 30
Answer:
15
Step-by-step explanation:
15 times 2 is 30. Therefore, 15 can be the correct answer!
Please mark me brainliest if I helped you! Thank you so much!
:)
what’s.the perimeter of a square with an area of 49 cm2
Answers
Answer:
28Step-by-step explanation:
Area of a square =
[tex]s^2[/tex]
Perimeter =
[tex]4\times s[/tex]
Where s = side
Solve for s using the area
[tex]A =49\\\\49 = s^2\\\\Square\:root \:both\:sides\:of\:the\:equation\\\\\sqrt{49} = \sqrt{s^2} \\\\7 =s\\\\s =7[/tex]
Find the perimeter
[tex]4\times s\\\\= 4 \times 7\\\\= 28[/tex]
If there are 7533 students at Rocky Valley College and 1/3 of the students take speech, how many students take speech at Rocky Valley College?
Answers
Answer:
no of student take speech at college = 1/3*7533=2511
Step-by-step explanation:
What is 200 ÷ 6.24 How do you work this out
Answers
= 32.051
Approximately = 32.1
In Noah's classroom, there are 6 girls for every 2 boys. What is the ratio of boys to the total number of students?
A. 3:1
B. 1:4
C. 4:1
D. 1:3
Answers
Answer:
A-3:1
Step-by-step explanation:
Simplify 6:2 by dividing by 2
88 students for 4 classes
what is the unit rate?
Answers
Answer:
22
Step-by-step explanation:
Answer:
22/1
Step-by-step explanation:
Help me ASAP plssssssssssssssss
Answers
Answer: it’s B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
What is the related rate of the ratio 90 to 3?
Answers
Answer:
30:1
Step-by-step explanation:
90:3
90÷3=30
3÷3=1
=30:1
If 4 pounds of sugur cost $2, the cost of 1 pound of sugar cost
Answers
Answer:
50 cent
Step-by-step explanation:
Answer:
.50¢
Step-by-step explanation:
50 cents = 1 pound
$1.00 = 2 pound
$1.50 = 3 pounds
$2.00 = 4 pounds
basically adding 50 cents equals to $2
On the map, the school and the sports park are 12 centimeters apart.
What is the actual distance between the school and the park?
Answers
Answer:
15 kmStep-by-step explanation:
On the map, the school and the sports park are 12 centimeters apart.
scale 4cm : 5km
find;
What is the actual distance between the school and the park?
solution:
12 cm = 4 cm
X km 5 km
cross multiply:
4 cm X km = 12 cm (5 km)
X = 12 cm (5 km)
4 cm
X = 15 km
therefore, the distance between the school and the sports park is 15 km
claude spends $315 to rent a car. The car costs $45 per day. He had a coupon for 2 free days. Complete equation to find number of days claude rents the car. D represents the number of days. _ (_-_)=_
Answers
Answer:
9 DAYS
Step-by-step explanation:
he has + 2 days first then you do 315/45 =5 + 2 = 7
(3 + 5i) + (11 -7i) Write answer in standard form a +bi
Answers
Answer:
Step-by-step explanation:
3 + 11 + 5i - 7i
14 - 2i
3(x+5) = -6x+6 two column proof
Answers
Answer:
- 1
Step-by-step explanation:
Step 1:
3x + 15 = - 6x + 6
Step 2:
9x + 15 = 6
Step 3:
9x = - 9
Answer:
x = - 1
Hope This Helps :)
40.4 x 18=? Please help
Answers
Answer:727.2
Step-by-step explanation:40.4x18=727.2
PLEASE HELP ME SOLVE THIS ASAP WITH WORK!!
Answers
Answer:
6
Step-by-step explanation:
If you multiply a number from the big polygon by 2/3s, you will get the corresponding number on the small polygon. For example, 6 × 2/3 = 4To find x, find the corresponding number on the big polygon and multiply it by 2/3s. The number on the big polygon is 9. 9 × 2/3 = 6I hope this helps!
A recent survey shows that the probability of a college student drinking alcohol is 0.6. Further, given that the student is over 21 years old, the probability of drinking alcohol is 0.8. It is also known that 30% of the college students are over 21 years old. Of the students who are not over 21, what is the probability they drink alcohol? Group of answer choices
Answers
Answer: 0.5143
Step-by-step explanation:
Probability of students who are over 21 years old = 30% = 0.3
Probability of students who are under 21 years old = 100% - 30% = 70% = 0.7
Probability of drinking alcohol for over 21 = 80% = 0.8
Probability of not drinking alcohol for over 21 = 100%- 80% = 20% = 0.2
Let the probability of the students who are not over 21, that drink alcohol be p.
Total probability of a college student drinking alcohol = (0.3 × 0.8) + (0.7 × p)
0.6 = (0.3 × 0.8) + (0.7 × p)
0.6 = 0.24 + 0.7p
0.7p = 0.6 - 0.24
0.7p = 0.36
p = 0.36/0.7
p = 0.5143
The probability of the students who are not over 21, that drink alcohol is 0.5143.
What is the value of the expression 2.58 x - 53?
Answers
Answer:
-136.74
Step-by-step explanation:
the solution to the division problem writtren as a mixed number is 10x426=4260
Answers
Answer:
266 1/4th. I hope this helped, and I would appreciate it if you gave it a good rating. :)
Step-by-step explanation:
1,065 ÷ 4 = 266 and remainder = 1 =>
1,065 = 266 × 4 + 1 =
1,065/4 =
(266 × 4 + 1) / 4 =
266 + 1/4 =
266 1/4
The required division is given as 4260 / 10 = 426.
Given that,
The solution to the division problem writtren as a mixed number is 10x426=4260
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
What is arithmetic?In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
Here.
10 * 426 = 4260
4260 / 10 = 426
Dividend / divisor = quotient,
Thus, the required division is given as 4260 / 10 = 426.
Learn more about arithmetic here:
brainly.com/question/14753192
#SPJ2
What is the domain of the given function?
{(3, –2), (6, 1), (–1, 4), (5, 9), (–4, 0)}
Answers
3, 6,-1, 5, -4
find the value of x
WILL MARK AS BRAINLIEST!
Answers
Answer:
37
Step-by-step explanation:
180-(81+62)=37
Answer:
x = 37°
Step-by-step explanation:
The sum of all internal angles in a triangle will always equal 180.
Thus, we know that 81 + 62 + x must equal 180.
81 + 62 + x = 180
143 + x = 180
Subtract 143 from both sides:
x = 180 - 143
x = 37
Answer: x = 37°
The screenshot is the question.
Answers
Answer:
23
Step-by-step explanation:
∠ABE=∠BEF=4x (AC║EF)
∠DBE=5x
∠DBF=180=∠DBE+EBF=5x+65
5x=180-65
x=23
One side of triangle is 3x -5.. the other side is 19-x and the base is 2x. What is the perimeter of the triangle
Answers
Answer:
4x+14
Step-by-step explanation:
In order to find the perimeter of an triangle you need to add up all the sides of the triangle.
3x-5+19-x+2x ---> 3x+14-x+2x --> 4x+14
Find mDCAˆ. the question says that the angle is 3x+19 the smaller arc is 91 and the bigger is 17x-3 it is one of those problems were the difference in the arcs divided by two equals the angle
Answers
Answer: Option C.
Step-by-step explanation:
Let as consider the below figure is attached below.
We know that angle between tangent and secant is half of difference of major and minor arcs.
[tex]\angle ABC=\dfrac{arc(AD)-arc(AC)}{2}[/tex]
[tex]3x+19=\dfrac{17x-3-91}{2}[/tex]
Multiply both sides by 2.
[tex]6x+38=17x-94[/tex]
[tex]38+94=17x-6x[/tex]
[tex]132=11x[/tex]
Divide both sides by 11.
[tex]12=x[/tex]
The value of x is 12.
[tex]arc(AD)=17(12)-3[/tex]
[tex]arc(AD)=204-3[/tex]
[tex]arc(AD)=201^{\circ}[/tex]
Now,
[tex]arc(DCA)=360^\circ-arc(AD)[/tex]
[tex]arc(DCA)=360^\circ-201^{\circ}[/tex]
[tex]m\widehat {DCA}=159^{\circ}[/tex]
Therefore, the correct option is C .
What is 15 x minus 3 y = 0 written in slope-intercept form? y = 5x y = negative 5 x x = one-fifth y x = 5 y
Answers
Answer:
y=5x
Step-by-step explanation:
Answer:
y=5x
Step-by-step explanation:
Find the perimeter P of ▱JKLM with vertices J(−3,−2), K(−5,−5), L(1,−5), and M(3,−2). Round your answer to the nearest tenth, if necessary.
Answers
Given:
Vertices of JKLM are J(−3,−2), K(−5,−5), L(1,−5), and M(3,−2).
To find:
The perimeter P of a parallelogram JKLM.
Solution:
Distance formula:
[tex]D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Using distance formula, we get
[tex]JK=\sqrt{\left(-5-\left(-3\right)\right)^2+\left(-5-\left(-2\right)\right)^2}[/tex]
[tex]JK=\sqrt{\left(-5+3\right)^2+\left(-5+2\right)^2}[/tex]
[tex]JK=\sqrt{\left(-2\right)^2+\left(-3\right)^2}[/tex]
[tex]JK=\sqrt{4+9}[/tex]
[tex]JK=\sqrt{13}[/tex]
Similarly,
[tex]KL=\sqrt{\left(1-\left(-5\right)\right)^2+\left(-5-\left(-5\right)\right)^2}=6[/tex]
[tex]LM=\sqrt{\left(3-1\right)^2+\left(-2-\left(-5\right)\right)^2}=\sqrt{13}[/tex]
[tex]JM=\sqrt{\left(3-\left(-3\right)\right)^2+\left(-2-\left(-2\right)\right)^2}=6[/tex]
Now, perimeter P of ▱JKLM is
[tex]P=JK+KL+LM+JM[/tex]
[tex]P=\sqrt{13}+6+\sqrt{13}+6[/tex]
[tex]P=2\sqrt{13}+12[/tex]
[tex]P=2(3.61)+12[/tex]
[tex]P=7.22+12[/tex]
[tex]P=19.22[/tex]
[tex]P\approx 19.2[/tex]
Therefore, the perimeter P of ▱JKLM is 19.2 units.