Answer:
Substitution property
Step-by-step explanation:
whats the answer to 13(9−6m)+14(12m−8)
Answer:
90m+5
Step-by-step explanation:
117-78m+14(12m-8)
117-78m+168m-112
90m+5
Answer:
90m+5
Step-by-step explanation:
117-78m+14(12m-8)
117-78m+168m-112
90m+5
Fifteen is equal to 7 more than twice a number. Write the equation and
nd the number.
a.
The expression V18+ V8 is equivalent to
572
b. 1072
2V9
d. 26
c.
b
The answer is A :)
5.
(plz helppp)
Mrs. Thompson’s class measured the rainfall at their school for four weeks.
Week 1:
Week 2: 3.2 inches
Week 3:
Week 4: ?
How much rain fell in week 4 if the total rainfall for the four weeks was 7 inches?
Answer: 1.26 inches
explanation :
because if you subtract 7 by 3.2 you'll get
3.8, 3.8 will be the total of rain if you add week 1 2 4 , then youll have to find the average by dividing 3.8 by 3 youll get 1.26 . so that means the average lenth of the rain for 1 2 4 is 1.26 inches
Triangle XYZ has vertices X(8, −2.3), Y(6.5, 5), and Z(6, 3). When translated, X′ has coordinates (3.8, −0.3). Enter a rule to describe this transformation. Then find the coordinates of Y′ and Z′. Drag and drop each number into the correct box to complete the statements.
In isosceles triangle ABC, AD is altitude .Prove that angle B = angle C
In an arithmetic sequence, the sum of the 3rd and 8th term is 1. Given that the sum of the first seven terms is 35, determine the first term and the common difference.
Answer:
first term: a₁ = 14 the common difference: d = -3Step-by-step explanation:
The sum of the 3rd and 8th term is:
[tex]a_3+a_8=1\\\\a_1+2d+a_1+7d=1\\\\\underline{2a_1+9d=1}[/tex]
The sum of the first seven terms is 35:
[tex]S_7=35\\\\\dfrac{a_1+a_7}2\cdot7=35\\{}\qquad\quad^{\div7\qquad\div7}\\ \dfrac{a_1+a_1+d}2=5\\{}\qquad\qquad^{\cdot2\qquad\cdot2}\\2a_1+6d=10\\{}\qquad\ ^{\div2\qquad\div2}\\a_1+3d=5\\{}\quad\ ^{-3d\quad\ -3d}\\a_1=5-3d[/tex]
[tex]2a_1+9d=1\\\\2(5-3d)+9d=1\\\\10-6d+9d=1\\{}\qquad\qquad^{-10\quad-10}\\{}\qquad3d=-9\\{}\qquad^{\div3\qquad\div3}\\{}\qquad d=-3\\\\\\a_1=5-3(-3)=5+9=14[/tex]
How many x-intercepts and y-intercepts can a linear function have?
Evaluate the following:
The square root of 90
Round 1 decimal place if necessary.
Answer:
9.5
Step-by-step explanation:
The equation c = 2r + 8 represents the cost of an amusement park. C represents the total cost, r is the cost per ride and 8 is the entrance fee to enter. Determine whether there is a proportional relationship between r and c.
Answer:
yes there is because if you do
Expand: f(x) = x4 − x3 + x2 + x −
Answer:
7
7
21
30
Step-by-step explanation:
its right i got it on edge 2020
Answer:
keep it simple 7, 7, 21, 30
Step-by-step explanation:
Carlos is saving money for the new PlayStation 5 that costs $400. He has already saved $150 by walking his neighbors' dogs
for the past few months. He plans on saving the same amount each week. Carlos wants to buy the gaming system on the
release date in 5 weeks. Select the inequality that best represents his savings plan.
O A. 150w+5> 400
OB. 400 > 150w+5
OC. 400 > 5w+ 150
OD. 400 < 5W+150
Answer: D
Step-by-step explanation:
Alicia watched a drone take off from a bridge. The height of the drone (in meters above the ground) t minutes
after takeoff is modeled by
h(t) = -3t2 + 12t +96
Alicia wants to know when the drone will land on the ground.
1) Rewrite the function in a different form (factored or vertex) where the answer appears as a number in the
equation
h(t) =
2) How many minutes after takeoff does the drone land on the ground?
minutes
Answer:
h(t) = -3(t-8)(t+4). and 8 minutes
Step-by-step explanation:
The function can be written as: h(t) = - 3(t² - 4t - 32). As per quadratic equation, after take off, the drone will land on the ground after 8 minutes.
What is a quadratic equation?A quadratic equation is an equation that contains a variable with highest degree of 2.
Given, the height of the drone t minutes after take off is modeled by
h(t) = - 3t² + 12t + 96 = - 3(t² - 4t - 32)
Therefore, the function can be written as: h(t) = - 3(t² - 4t - 32)
Therefore, we can write the equation as:
t² - 4t - 32 = 0
⇒ t²- 8t + 4t - 32 = 0
⇒ t(t - 8) + 4(t - 8) = 0
⇒ (t + 4)(t - 8) = 0
Hence, (t + 4) = 0 and (t - 8) = 0
Therefore, t = -4, 8.
As 't' can't be negative, therefore, t = 8.
Therefore, after take off, the drone will land on the ground after 8 minutes.
Learn more about a quadratic equation here: https://brainly.com/question/11872809
#SPJ2
Mya tests out her new drone by sending it farther and farther away before dropping it to the ground. These distances follow the arithmetic sequence 11 m, 22 m, 33 m, ..., 77 m. What is the total distance that Mya's drone travels during the tests?
Answer:
308m
Step-by-step explanation:
11+22+33+44+55+66+77=308
will give 100 pts and brainliest
Answer:
y = [tex]\sqrt{19^2 + 8.2^2}[/tex]
Step-by-step explanation:
to get the hypotenuse:
use the Pythagorean theorem:
a² + b² = c²
where a = 19, b = 8.2 c = y
plugin values:
19² + 8.2² = y²
y = [tex]\sqrt{19^2 + 8.2^2}[/tex]
Answer:
y = [tex]\sqrt{19^2+8.2^2}[/tex]
Step-by-step explanation:
Find the hypotenuse
I will give Brainliest Pleaasee Help!
The best approximation for the square root of 10 is _____.
a) 25
b) 3.1
c) 5
d) 100
Answer:
b) 3.1
Step-by-step explanation:
3*3=9
Answer:
B) 3.1
Step-by-step explanation:
The square root of 10 is 3.1622776, but when it's estimated the answer is b) 3.1
A car uses 4 gallons of gasoline for a
trip of 30 miles. How many gallons of
gasoline would be used on a trip that is 81
miles?
Answer:
I wish I've known, but try using Symbo-Lab or Math-Way. They help a lot.
Step-by-step explanation:
Which number has 2 as a factor
Answer: 2 and 1 are the only factors
Step-by-step explanation: The definition of factor is the numbers that can be multiplied to get the said number. In this case the said number is 2. The only numbers that multiply to get 2 are 2 and 1.
A steel beam can be cut to different lengths for a project.
Assuming the weight of a steel beam is proportional to its length, what information would you need to know to write an equation that represents this relationship?
Answer:None
Step-by-step explanation:
You can write a statement of proportionality without any additional information:
weight = k × length for some constant k
If you need to know the specific weight of a specific length, then you need to know the constant of proportionality (the value of k).
Please help me please
Answer:
False.
Step-by-step explanation:
They will intersect if the lines continue.
________________________
✩ Answer:
✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*
[tex]\bold{Hello!}\\\bold{Your~answer~is~below!}[/tex]
✩ Step-by-step explanation:
✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*✧･ﾟ: *✧･ﾟ:*
✺ Divide both sides by −3. Since −3 is negative, the inequality direction is changed:
-3 ÷ -3 = Cancels OutTurns into: [tex]\frac{-9}{-3} >5x-2[/tex]✺ Divide −9 by −3 to get 3. Since they are both negatives it turns into a positive:
-9 ÷ -3 = 3Turns into: [tex]3 > 5x - 2[/tex]✺ Swap sides so that all variable terms are on the left hand side. This changes the sign direction once more:
Turns into: [tex]5x-2<3[/tex]✺ Add 2 to both sides:
Turns into: [tex]5x<3+2[/tex]✺ Add 3 and 2 to get 5:
3 + 2 = 5Turns into: [tex]5x<5[/tex]✺ Divide both sides by 5. Since 5 is positive, the inequality direction remains the same:
5 ÷ 5 = Cancels OutTurns into: [tex]x<\frac{5}{5}[/tex]✺ Divide 5 by 5 to get 1:
5 ÷ 5 = 1✺ So your answer is B, [tex]\boxed{x<1}[/tex].
(Number line is below.)
[tex]Hope~this~helps~and,\\Best~of~luck!\\\\~~~~~-TotallyNotTrillex[/tex]
Answer:
[tex]\boxed {x < 1}[/tex]
Step-by-step explanation:
Solve the following inequality:
[tex]-9 < -3(5x - 2)[/tex]
-When you are dividing an integer by a negative integer, then the inequality sign changes. So, divide both sides by [tex]-3[/tex]:
[tex]\frac{-9}{-3} < \frac{-3}{-3} + 5x - 2[/tex]
[tex]3 > 5x - 2[/tex]
-Switch sides:
[tex]5x - 2 < 3[/tex]
-Add [tex]2[/tex] to both sides:
[tex]5x - 2 + 2 = 3 + 2[/tex]
[tex]5x < 5[/tex]
-Divide both sides by [tex]5[/tex]:
[tex]\frac{5x}{5} < \frac{5}{5}[/tex]
[tex]\boxed {x < 1}[/tex]
The number line graphed (if needed):
during this year's basketball season, michael averaged 22.075 points per game. which numbers are less than 22.075
A) 21.9
B)22.08
C)23.06
D)22.07
E)22.079
Answer:
A) 21.9 and D) 22.07
Step-by-step explanation:
Answer:
A and D
Step-by-step explanation:
22.075
A=0.175 less
B=0.005 more
C=0.985 more
D=0.005 less
E=0.004 more
2x - 1y = 6
-3y = -6x + 18
please explain how you got your answer thank you :)
Answer: {x,y}={6,21}
Step-by-step explanation:
// Solve equation [2] for the variable x
[2] 3x = 18
[2] x = 6
// Plug this in for variable x in equation [1]
[1] 2•(6) - y = -9
[1] - y = -21
// Solve equation [1] for the variable y
[1] y = 21
// By now we know this much :
x = 6
y = 21
We are done
Answer:
y = 2x -6. A dependent system, so all numbers on this line.
Step-by-step explanation:
2x - y = 6
-3y = -6x + 18
In order to solve a system of equations, you want to get isolate y. One equation already has done that for us, so that makes it easier.
2x - y = 6
In order to isolate y in this equation, you must simply subtract 2x from both sides, which would give us:
-y = -2x + 6
Now, you can't leave y negative. Normally you'd divide the y by its variable, but this one doesn't have a variable. so you must divide both sides by -1.
[tex]\frac{-y}{-1} =\frac{-2x+6}{-1}[/tex]
We divide both sides because what you do to one side you must do to the other. This leaves us with the equation:
y = 2x - 6
Now, for the other equation. It's simple since y is already isolated.
-3y = -6x + 18
Once again we will be dividing both sides, but this time it's by -3.
[tex]\frac{-3y}{-3} =\frac{-6x+18}{-3}[/tex]
We are dividing by -3 instead of -1 because y in this equation has a variable of -3. This would give us:
y = 2x - 6
Now, normally in order to get the answer, you must graph both of these equations, but since these equations ended up being the same, the answer is every number that appears on the line. This is called a dependent system.
The explicit rule for a sequence and one of the specific terms is given. Find the position of the given
term.
f(n) = 1.25n+ 12.5; 25
25 is the BLANK th term
Answer:
10.2
Step-by-step explanation:
F(n) is basically a fancy substitute for y
25= 1.25n + 12.25
subtract 12.25 from both sides
12.75=1.25n
n=10.2
plug back in to double check
1.25(10.2) + 12.25
it equals 25, therefore the answer is
10.2
Helps me solve this problem please
Answer:
-4 hope it helps :)
Step-by-step explanation:
Step-by-step explanation:
mark as brainlistyour answer is -4
simplify 2 x 5^2.
A- 49
B- 20
C- 100
D- 50
Damien Bowled five games. His scores were
83,82,65,84,76
Answer:
I have no idea what your askin but here-
the mean 78
No mode
range is 19
median is 82
Arrangement of order 65,76,82,83,84
BRAINLIEST ANSWER!
A repair bill for your car is $553. The parts cost $265. The labor cost is $48 per hour. Write and solve an equation to find the number of hours, t, of labor spent repairing the car.
Answer:
the answer is 311
Step-by-step explanation:
the answer is 311
I need help with this
Answer:
First add all the equations like (11y-32)+(3x-16)+(6x+7)=180
Step-by-step explanation:
You would first combine all the like terms so put all the variables on one side and the numbers on the other. After you have done that, you would just solve.
5. Why Lily loves her cheese so much?
a. It gives her strong bones.
b. It makes her happy.
c. It makes her sad.
Answer:
b. It makes her happy.it is % correct answer.Thank you ☺️☺️