Answer:
The equation that models the situation is [tex]y = 8 - 0.75t[/tex]
Step-by-step explanation:
Equation of a line:
The equation of a line, in slope-intercept formula, has the following format:
[tex]y = mx + b[/tex]
In which m is the slope(how much y changes when x changes by 1 unit) and b is the intercept, which is the value of t when x = 0.
A candle is 8 inches tall and burns at 3/4 inch each hour.
Using t as number of hours and y as the height.
Initial height of 8 inches, that is, when [tex]t = 0, y = 8[/tex], so [tex]b = 8[/tex]
Burns at 3/4 inch each hour.
That is, the height decreases by a rate of 3/4 inch each hour, so [tex]m = -\frac{3}{4} = -0.75[/tex]
So
[tex]y = 8 - 0.75t[/tex]
On a family vacation, Melissa's family drove 480 miles from Cincinnati,
Ohio to Charlotte, North Carolina. Her dad drove 35% of the way and her
mom drove 65% of the distance her dad drove. If her brother drove the
remaining miles, about how many miles did her mom, dad, and brother
each drive
Answer:Melissa's mom, dad, and brother each drove 312miles, 168miles and 0 miles respectively
Step-by-step explanation:
If Mellisa's dad drove 35% of the way
and Melissa's mum drove 65% of the way,
Then
Melissa's brother did not drive at all because
Miles covered by her dad = 35% x 480 = 0.35 x480= 168 miles
Miles covered by her mum= 65% x 480 = 0.65 x 480=312miles
her mom, dad, and brother each drove 312miles, 168miles and 0 miles respe ctively
I need help on this for real
Answer:
x < 3
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
Gang ima just take them points tbh
Step-by-step explanation:
Two secretarial students, Agyemang and Ike
are used Typewriter dealers. They found that the
length of time before a major repair is required on
Typewriter sold is normally distributed with a mean
equal to 11 months and
Standard deration & 2
montes. If the dealers wand only s% of the
Cars to fail before the end of the guarantee
period, for how
many
minth should the Typewriters
be guaranteed
how me
,
Step-by-step explanation:
22
A thermally insulated vessel contains
150 g of water at 0°C. Then the air from the
vessel is pumped out adiabatically. A
fraction of water turns into ice and the rest
evaporates at 0°C itself. The mass of
evaporated water will be closest to:
(Latent heat of vaporization of
water = 2.10 x 106 Jkg - and Latent heat of
Fusion of water = 3.36 x 105J kg-1)
You roll a die 8 times. What is the probability of rolling EXACTLY six fours?
Answer:
it should be did the math 1/5
Convert the equation to vertex form.
y = x2 – 8x + 10
Answer:
Step-by-step explanation:
y = (x² - 8x) + 10
Complete the square
coefficient of the x term: -8
divide it in half: -4
square it: (-4)² = 4²
use 4² to complete the square and keep the equation balanced:
y = (x²-8x + 4²) - 4² + 10
y = (x-4)² - 6
Answer:
y = (x - 4)² - 6
Step-by-step explanation:
use the 'completing the square' method:
x² - 8x + 10 = 0
x² - 8x + 16 = -10 + 16
(x - 4)² = 6
y = (x - 4)² - 6
work out the surface area of this cylinder
Answer:
A=2πrh+2πr2=2·π·2·4+2·π·22≈75.39822
Step-by-step explanation:
if i buy 4m of cloth at N1.75 per m how much change shall I receive out of N10.00
Answer:
$3
Step-by-step explanation:
4 x 1.75 = $7
$10 - $7 =
$3
Hope that helps!
The amount of change you will receive after buying the cloth is N3.00.
What is function? Differentiate between equation and expression? function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.Given is that you bought 4m of cloth at N1.75 per meter.
The amount of change you will receive after buying the cloth is -
N10 - N(1.75 x 4)
N{10 - 1.75 x 4}
N{10 - 7}
N3.00
Therefore, the amount of change you will receive after buying the cloth is N3.00.
To solve more questions on functions, expressions and polynomials, visit the link below -
brainly.com/question/17421223
#SPJ2
help pls the question is in screen shot below
Answer:
15 liters
Step-by-step explanation:
Answer:
107
Step-by-step explanation:
24/9=2.66666-Its a repeating decimal
2.666666...(40)=106.66666......
That is about 107 liters
<3 Good Luck
What is -1 - 9
Solve for 2x-4y =20
X=4
Answer:
So -1-9= -10
And if x =4 then 2(4)-4y=20
Y= -3
Step-by-step explanation:
2(4)-4y=20
8-4y=20
-4y=12
y=-3
Answer:
-1 - 9 = -10 &
y = -3
Step-by-step explanation:
2x - 4y = 20
2(4) - 4y = 20
8 - 4y = 20
-4y = 12
y = -3
good luck, i hope this helps :)
Plz help me with math I am bad at it plzz
Answer:
c im pretty sure because im good at this
Which formula represents how to find r in a polar coordinate?
Answer:
Here's the answer:
r = √ ( x2 + y2 )
Answer:
To convert from Cartesian Coordinates (x,y) to Polar Coordinates (r,θ):
1. r = √ ( x2 + y2 )
2. θ = tan-1 ( y / x )
I hope it's helpful!
Samantha has 1/3 gallon of milk left and wants to make 55 smoothies. If she wants to use the same amount of milk in each smoothie, how much milk can she put into each smoothie?
Answer:
She can put 1/165 in one smoothie.
Step-by-step explanation:
1/3 divided by 55/1
1/3 x 1/55 = 1/165
Hope this helps! :)
plz make me the Brainiest
How do you graph x>12
Answer:
socratic
Step-by-step explanation:
just use the app
9(3x + 4) - 22 = 11 +5(42 - 1)
Answer:
13
Step-by-step explanation:
because I know cause my dad is adam sandler
Answer:
hello! :) have a good day!
Exact Form:
x = 202/27
Decimal Form:
x = 7.481
Mixed Number Form:
x = 7 13/27
Financial algebra: Karen wants to make a deposit of $500 each week into an account that earns %5 interest compounded weekly(52 weeks/year). How much money will be in the account at the end of 1 year?
How much money in interest will be the account earned at the end of the year?
One of the legs of a right triangle measures 4 cm and the other leg measures 19 cm. Find the measure of the hypotenuse. If necessary, round to the nearest tenth.
Answer:
A2 + B2 = C2, so 4 squared + 19 squared = C2, 16 + 361 = 377. 377's square root is 19.4.
Step-by-step explanation:
The measure of the hypotenuse is 19.4 cm.
Given that, one of the legs of a right triangle measures 4 cm and the other leg measures 19 cm.
What is the Pythagoras theorem?The Pythagoras theorem which is also referred to as the Pythagorean theorem explains the relationship between the three sides of a right-angled triangle. According to the Pythagoras theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a triangle.
Let the measure of the hypotenuse be x.
Using Pythagoras theorem,
x² = 4² + 19²
⇒ x² = 16 + 361
⇒ x² = 377
⇒ x = √377
⇒ x = 19.4 cm
Therefore, the measure of the hypotenuse is 19.4 cm.
To learn more about the Pythagoras theorem visit:
https://brainly.com/question/21926466.
#SPJ2
7 (w+13)= 35 what the value of w
Answer:
w=-8
Step-by-step explanation:
take both sides and divide by 7
(w+13)=5
subtract both sides by 13
w=-8
Each of the Space Shuttle's solid rocket motors burns 680,400 kilograms of propellant in 2.5 minutes. How much propellant does each motor
Answer:
Step-by-step explanation:
Victoria opens a saving account with $200. She earns 1.6% interest. How much will she have after 4 years?
Answer:
i think it is 212.8
Step-by-step explanation:
Answer: it’s 212.8
Step-by-step explanation:
A new building is being constructed a distance of 420 feet from the ocean, and the builder wants to have a rooftop patio
with a view of the ocean. Another building, in between the new building and the ocean, is located a distance of 180 feet
from the ocean and has a height of 15 feet. The angle of elevation from the ocean to the top of the new building, O.
represents the minimum angle for a person on the rooftop to view the edge of the ocean
rooftop
patio
15 ft.!
180 ft.
420 ft.
. To the nearest hundredth, what is the measure of in degrees?
. Construction for the new building has a maximum height restriction of 32 feet Is it possible for the builder to have a
rooftop patio with a view of the ocean? Justify your answer. In your response, make sure to define your variables
and show all your work
Enter your answers and justification in the box
Math symbols
Relations
No
Answer:
[tex]\theta = 4.8^\circ[/tex]
It is possible
Step-by-step explanation:
Given
See attachment for the construction
Solving (a): The minimum angle
This is calculated as thus:
[tex]tan(\theta) = \frac{Opposite}{Adjacent}[/tex]
[tex]tan(\theta) = \frac{15}{180}[/tex]
[tex]tan(\theta) = 0.0833[/tex]
Calculate [tex]\theta[/tex]
[tex]\theta = tan^{-1}(0.0833)[/tex]
[tex]\theta = 4.761[/tex]
[tex]\theta = 4.8^\circ[/tex] --- approximated
Solving (b):
First; calculate the height of the building using the following equivalent ratio.
[tex]h : 420 = 15 : 180[/tex]
Where h is the height of the building
[tex]\frac{h }{ 420 }= \frac{15 }{ 180}[/tex]
[tex]h= \frac{15 }{ 180}*420[/tex]
[tex]h= \frac{15*420 }{ 180}[/tex]
[tex]h= \frac{6300}{ 180}[/tex]
[tex]h= 35[/tex]
This means that it is possible that the builder builds a 32 feet high building
From the picture attached,
Angle of depression = Angle of elevation (θ) [Alternate angles]
Apply tangent rule in ΔCDP,
[tex]\text{tan}\theta=\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
[tex]\text{tan}\theta=\frac{CD}{DP}[/tex]
[tex]=\frac{15}{180}[/tex]
[tex]=\frac{1}{12}[/tex]
[tex]\theta=\text{tan}^{-1}(0.08333)[/tex]
[tex]\theta=4.76^\circ[/tex]
Similarity of two triangles:If two triangles are similar, their corresponding sides will be proportional.Use this property to get the height of the new building.
Since, ΔABP and ΔCDP are the similar triangles, their corresponding sides will be proportional.
[tex]\frac{AB}{BP}=\frac{CD}{DP}[/tex]
[tex]\frac{AB}{420}=\frac{15}{180}[/tex]
AB = [tex]\frac{420\times 15}{180}[/tex]
= 35 feet
But the construction for a new building has a maximum height restriction of 32 feet.
And the height of the building is more than the restricted height.
Therefore, it is not possible for the builder to have a rooftop patio with a view of the ocean.
Learn more about the similar triangles here,
https://brainly.com/question/10043253?referrer=searchResults
Use equivalent ratios to complete each table. Fill in the blanks
Tables: 8 _ 16 _ _
Chairs: 32 16 _ _ _
Answer:
Step-by-step explanation:
8 4 16 ? ?
32 16 64 ? ?
i dont know the last two but here
what fraction is equivalent to -1.25
Answer:
-5/4
Step-by-step explanation:
because 1/4 would be .25 so .25 x 5 = 1.25
and then just make it negitive
Answer:
Step-by-step explanation:
There are an infinite number of fractions which equal -1.25.
But for simplicity realize that this is equal to -1.25/1. Multiply the numerator and denominator by 4 to get
-5/4
Multiply and simplify. (4x−7)(x+5)
What is the answer?
Question 3 options:
5x−2
5x2+13x−35
4x2+13x−35
4x2+27x+35
Answer:
C) 4x^2 + 13x - 35
Step-by-step explanation:
(4x-7)(x+5)
4x × x + 4x × 5 - 7x - 7 × 5
4x^2 + 20x - 7x - 35
4x^2 + 13x - 35
In AGHI, the measure of ZI=90°, HI = 1.1 feet, and IG = 7.5 feet. Find the measure of
ZG to the nearest tenth of a degree.
Answer: 8.3
Step-by-step explanation:
will received a 2% increase in pay, He was making $1,190/biweekly.
a. How much was his raise?
b. How much is he making now?
Answer:
A: His raise was $23.8
B: He is making $1213.8
Step-by-step explanation:
Do 1190 divided by 100 and your answer will be
11.9 which is 1%, then do (11.9 + 11.9) + 1190 which will equal 1213.8
a. Will's raise was the amount of $23.80. b. Will is now making $1,213.80 biweekly.
What is the percentage?The percentage is defined as a ratio expressed as a fraction of 100.
For example, If Misha obtained a score of 67% on her exam, that corresponds to 67 out of 100. It is expressed as 67/100 in fractional form and as 67:100 in ratio form.
Will receive a 2% increase in pay, He was making $1,190/biweekly.
a. Will's raise was $23.80. This can be calculated by multiplying his original biweekly payments of $1,190 by 2% (0.02).
b. Will is now making $1,213.80 biweekly. This can be calculated by adding his raise of $23.80 to his original biweekly payments of $1,190.
Learn more about the percentages here:
brainly.com/question/24159063
#SPJ2
PLEASE HELP!!!!
angle A is complementary to angle B . The measure of angle A is(2x+5)^ The measure of angle B is twice the measure of angle A . Part A Write an equation that can be used to determine the value of . Enter the correct answer in the box
Answer:
angle A =90- angle B
angle A=(2x+5)
angle B =2x(let the angle A be x)
(2x+5)=90-2x
2x+5=90-2x
4x+5=90
4x=90-5
4x=85
x=85/4=21.25
angle A=2(21.25)+5=42.5+5=47.5
angle B =2(21.25)=42.5
11). Miguel has $87,255 in a savings account that earns 9% interest per year in simple interest. To the nearest cent, how much will he have in 4 years? OA). $31,411.80 O B). $123,167.55 O C). $35,912.55 OD). $118,666.80
Answer:
[tex]A). \: \$31,411.80[/tex]
Step-by-step explanation:
[tex]s.i = \frac{p \times r \times t }{100} \\ \\ s.i = \frac{87255 \times 9 \times 4}{100} = 31,411.8[/tex]
Answer:A
Step-by-step explanation:
Which value is the solution to the equation 20=y+12 ? ( use substitution to find solutions to equations.)
Answer:
8 = y
Step-by-step explanation:
In order to find a solution to an algebraic equation such as this one we simply need to isolate the variable. We do this by applying the opposite operation to each side in order to get rid of the other factors and get the variable alone. Like so...
20 = y + 12 ... we need to subtract 12 from both sides to get rid of the 12 on the right side with the variable y.
20 - 12 = y + 12 - 12
8 = y
Finally, we can see that the value of the variable y is 8
57/4 × 1/6 = 57/24 =
57/24 = 19/8 (divide numerator and denominator by 3)
Hope this helps.
Q) 57/4 × 1/6 = 57/24 = ?
→ 57/4 × 1/6
→ 57/24 = 19/8
Therefore the final answer is,
→ 57/4 × 1/6 = 57/24 = 19/8
Use the following information for Questions 7 - 10. Last year two sections of probability and statistics were taught by an instructor. The first section had 20 students and the second had 30 students. Each student had to complete a project. The projects were randomly ordered before grading. Consider the first 15 graded projects. Question 7: Which type of probability distribution best describes the problem
Answer:
Hypergeometric distribution
Step-by-step explanation:
The hypergeometric distribution is the type of geometric distribution that best describes this problem.
The hypergeometric distribution is a distribution function where weake selections from 2 groups and by doing so no members of the groups are replaced. The 2 groups are the two sections of probability and statistics.
