Answer:
x=-4
Step-by-step explanation:
1. Distribute
3(2x+8)=0
6x+24=0
2. Subtract 24 from both sides.
6x+24=0
6x+24-24=0-24
3. Simplify
6x=-24
4. Divide both sides of the equation by the same term
6x=-24
[tex]\frac{6x}{6}[/tex] = [tex]\frac{-24}{6}[/tex]
5. Simplify
x=-4
And thats the answer.
I hope this helps :)
This year Adeele paid £465 for her car insurance. This is an increase of 20% on last year's payment. How much did Adele pay last year?
Answer:
Insurance cost (last year)= £387.5
Step-by-step explanation:
Giving the following information:
Insurance cost= £465
Increase growth rate= 20% = 0.2
To calculate the cost of insurance last year, we need to use the following formula:
Insurance cost (last year)= insurance cost / (1 + insurance growth rate)
Insurance cost (last year)= 465 / (1 + 0.2)
Insurance cost (last year)= £387.5
The amount that Adele pay last year was:£387.5.
Car insurance:Using this formula
Amount paid= Insurance cost / (1 + Insurance growth rate percentage)
Where:
Insurance cost= £465
Increase growth rate percentage=20% or 0.20
Let plug in the formula
Amount paid= £465 / (1 + 0.20)
Amount paid= £465/1.20
Amount paid= £387.5
Inconclusion the amount that Adele pay last year was:£387.5.
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What is the proportion for x
Which equation can be simplified to find the inverse of y = 2x²?
O1/y=2x²
Oy=1/2x²
O-y= 2x²
O x= 2y²
Answer:
y=1/2x²
Step-by-step explanation:
y=2x-²
y=1/2x²
The equation can be simplified to find the inverse of y = 2x² is y=1/2x², the correct option is B.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.
We are given that;
Equation y = 2x²
Now,
To find the inverse of a function, you need to swap the x and y variables and solve for y. So, the equation that can be simplified to find the inverse of y = 2x² is x = 2y². You can simplify it by dividing both sides by 2 and taking the square root of both sides. The inverse function is y = ±√(x/2).
Therefore, by the equation the answer will be y=1/2x²
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Solve for x.
-5x = -10
Answer:
x=2
Step-by-step explanation:
divide -5 to both sides to isolate the x. two negatives make a positive therefore x=2.
i hope this helps :)
Answer:
2
Step-by-step explanation:
-10 divided by -5 is 2. Therefore, x=2.
Find the cube roots of unity in standard form (a+bi). Use exact values.
Every non-zero complex number has three cube roots. In general, any non-integer exponent, like
1
3
here, gives rise to multiple values. The way we find them is by multiplying
z
by 1 before exponentiating. We write
1
using Euler's Identity to the
2
k
power for integer
k
. That's
based on sample one, how many students from the entire student population preferred the 8:30 am start time
PLEASE HELP WILL GIVE BRAINLIEST IF CORRECT
Let y = 2t+ 5 be a linear function representing the distance
from home for an ant t minutes after starting out from a
location near its home. What does the number 2 represent in
this function?
O A. The ant is 2 feet from its home after t minutes.
O B. The ant is moving 2 feet every 5 minutes.
O C. The ant is crawling at 2 feet per minute.
O D. The ant started out 2 feet from its home.
Each side of a square is 3inches long.a student increases the length of each side by 3inches.the are of the new Square is how many times the area of original square?
A=2
B-3
C=4
D=a
Help please someone please give me the correct answer
I will mark you brainliest for the correct answer!!
This is a test!!!
Answer:
Angle X and W are verticalStep-by-step explanation:
It's wrong statementA 10 ft tall tent standing next to a woman
casts a 16 ft shadow. If the woman is 5 ft
tall, then how long is her shadow?
Answer:
8 ft
Step-by-step explanation:
Set up a proportion: 10/16=5/x
Solve for x: 80=10x
x=8
If ∠ A and ∠ B are supplementary angles and ∠ A is seventeen times as large as ∠ B, find the measures of ∠ A and ∠ B.
supplementary angles = 180°
A : B
17 : 1
170 : 10
Pleasr help fast it's due today
1. Consider the surface area of the following pyramid.
224 am
4 am
4 am
2.24 cm
4 cm
3 cm
4 cm
4 cm
3 cm
13 cm
4 cm
4 cm
3 cm
4 cm
4 cm
3 cm
(a) Calculate the total surface area of the pyramid. Show your work.
the answer is 26.88 i wish that helped :)
neeed help againnnnnn
Answer:
look at the picture i sent............
Zoom in giving 5 stars to right answer
Answer:
Can u take a better picture?
PLEASE HELO ME AND EXPLAIN PLEASE. AND PLEASE SHOW IN STEPS!! i will mark brainliest if you get it correct!
Step-by-step explanation:
The height of the swipe card is given by :
[tex]h(t)=-3t^2+15t+18[/tex] .....(1)
We need to find the maximum height of the swipe card and the time to reach the maximum height.
For maximum height, put dh/dt = 0
So,
[tex]\dfrac{d}{dt}(-3t^2+15t+18)=0\\\\-9t+15=0\\\\t=\dfrac{15}{9}\\\\t=1.67\ s[/tex]
It will take 1.67 seconds to reach the maximum height.
Now, put t = 1.67 s in equation (1).
[tex]h(1.67)=-3(1.67)^2+15(1.67)+18\\\\=34.68\ feet[/tex]
Hence, the maximum height of the swipe card is 34.68 feet and the time to reach this height is 1.67 s.
A blank expression like (3+5)x(4-1) is a combination of numbers and least one operation
Answer:
Hey the answer is = 24x
Step-by-step explanation:
An algebraic expression comprises both numbers and variables together with at least one arithmetic operation. To evaluate an algebraic expression you have to substitute each variable with a number and perform the operations included.
HOPE THIS HELPS!
The given numerical expression is simplified to 24.
What is PEDMAS rule?PEMDAS is an acronym used to mention the order of operations to be followed while solving expressions having multiple operations. PEMDAS stands for P- Parentheses, E- Exponents, M- Multiplication, D- Division, A- Addition, and S- Subtraction.
The given numerical expression is (3+5)×(4-1).
Solve Parentheses first, that is
8×3
=24
Therefore, the given numerical expression is simplified to 24.
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Write in standard form:
the quotient of 29 and r
1. 29r
2. 29 divided by r
3. 29 - r
Answer:
2
Step-by-step explanation:
quotient of two numbers means that you divide those two numbers.
Answer:
2. 29 divided by r
Step-by-step explanation:
this is division, so the key term divided by must come in.
Keenan bought 9 books about plants and 6 books about fish. He also bought 8 science magazines. Each book cost $20 and each magazine cost $3. How much did Keenan spend in all?
Answer:
$324
Step-by-step explanation:
Cost per books = $20
Book cost = $20 * (9 + 6) = 20 * 15 = $300
Cost per magazine = $3
Number of magazines = 8
Magazone cost = 8 * $3 = 24
Total cost = $300 + $24
= $324
Find x (the answer is a decimal) Picture posted below.
Answer:
x = 37.5
hope that helps
Which r-value suggests a weak negative correlation?
A. r = 0.13475
B. r = 0.95768
C. r = -0.13475
D. r = -0.95768
Answer:
r = -0.13475
Step-by-step explanation:
Here, we want to select a value for a weak negative correlation
When a correlation is week, its value is usually less than -0.5
In this case, we have our correct answer as r = -0.13475
Kayla bought seven boxes. A week later, half of all her boxes were destroyed in
a fire. There are now only 22 boxes left. With how many did she start? Show your work.
Answer:
Let's call the number of boxes Maria started with:
There are 37 boxes
Step-by-step explanation:
Let's call the number of boxes Kayla started with:
Then we can write:
22
=
b
+
7
2
Where:
22
is the number of boxes Kayla has left.
(
b
+
7
)
is the number of boxes Kayla started with plus the
7
she bought
The division by
2
represents
1
2
of the total boxes Kayla had being destroyed by fire.
We can solve this by first multiplying each side of the equation by
2
to eliminate the fraction while keeping the equation balanced:
2
×
22
=
2
×
b
+
7
2
44
=
2
×
b
+
7
2
44
=
b
+
7
Now, subtract
7
from each side of the equation to solve for
b
while keeping the equation balanced:
44
−
7
=
b
+
7
−
7
37
=
b
+
0
37
=
b
b
=
37
Kayla started out with 37 boxes.
What is 6 - 8? Please provide answers with the - sign.
PLEASE HELP ME!
Answer: -2
Step-by-step explanation: 6-6=0, and 0-2= -2, so that is how i got my answer
Answer:
-2
Step-by-step explanation:
6 - 8 = -2
please mark as brainliest
PLEASE HELP!!!!!
find the area of the polygon.
Answer:
2 cm is were youll find the polygon at. it shouldnt be hard to see the area of were the polygon is
Answer:
208 cm²
Step-by-step explanation:
14 cm × 16 cm = 224 cm²
14 cm - 6 cm = 8 cm
8 cm × 2 cm = 16 cm²
224 cm² - 16 cm² = 208 cm²
Victoria has a points card for a movie theater.
She receives 65 rewards points just for signing up.
She earns 12.5 points for each visit to the movie theater.
She needs at least 215 points for a free movie ticket.
Use the drop-down menu below to write an inequality representing vv, the number of visits she needs to make in order to get a free movie ticket.
Answer: she needs to go 12 times
Step-by-step explanation:
Answer:
*12=3x+4m-3x2.......THE ANSWER IS 10
Step-by-step explanation:
divide 12 by 3
add that answer by 4
subract that by 3
then multiply it by 2
and it gives you... (10)
Your Welcome
Can someone helpppp plssss
Answer:
angleQ+angleR is 180degrees because of the properties of isoceles trapezoid. So, if you set equation and solve, you'll get the fact that x is 12, and angleR is 130degrees, and angleQ is 50degrees. According to the properties of isoceles trapezoid, angleQ is the same as angleT. So, angleT is 50degrees
Answer:
Step-by-step explanation:
p which- x2+8x+p=0 will have equal roots
Answer:
The correct answer is the 162xsquare
90% of the stores at a shopping mall sell clothing. If 63 of the stores sell clothing, how many total stores are at the mall?
Someone please help me on this please
A telecommunications company in a small town had 450 phone subscribers before they introduced a plan for newly joining members. The company recorded an approximate 50% increase each month in the number of new phone subscribers, where they had one new subscriber at the start of the plan. The number of phone subscribers x months after the plan was launched is modeled by the function below.
Answer:
450 x (1 + 0.5) ^ X = Phone subscribers
Step-by-step explanation:
Since a telecommunications company in a small town had 450 phone subscribers before they introduced a plan for newly joining members, and the company recorded an approximate 50% increase each month in the number of new phone subscribers, where they had one new subscriber at the start of the plan, to determine the number of phone subscribers x months after the plan was launched, the following function must be considered and solved:
450 x (1 + 0.5) ^ X = Phone subscribers
So, for example, in 3 months, the number of subscribers would be the following:
450 x (1 + 0.5) ^ 3 = 1,518.75
Thus, in 3 months, the company would have 1,518 subscribers.
Which pair of equations below is a result of constructing the altitude, h, in Triangle ABC?
sinA= h/c
sinC= h/a
sinA= h/c
sinB= b/c
sinA= b/c
sinC= b/a
sinA= h/a
sinB= b/a
40 points!!!
Answer:
a
Step-by-step explanation:
Bc i just did on edge
The pair of equations below is a result of constructing the altitude, h, in Triangle ABC is A; sin C = h/a and sin A = h/c.
What are trigonometric identities?Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.
We know:
[tex]\sin(\theta) = \dfrac{\text{Length of perpendicular}}{\text{Length of Hypotenuse}}[/tex]
So from the attached figure;
sin C = h/a
sin A = h/c
These expressions have an h term in common. We can combine them if we can find forms of the expressions in terms;
h = a (sin C)
h = c (sin A)
Thus, option A is correct pair.
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