i’ve tried to figure it out && i can’t figure it out,, any help ?
Answer:
y = -4x - 11
Step-by-step explanation:
slope intercept form:
y = mx + b
Find y-intercept with slope of -4 and passes through point (-3, 1):
y = mx + b
1 = -4(-3) + b
1 = 12 + b
b = -11 <======== y-intercept
Equation using the given slope of -4 and y-intercept above:
y = mx + b
y = -4x - 11
suppose the depth of the tide in a certain harbor can be modeled by y = 20 + 5 cos (pi/6 t), where y is the water depth in feet and t is the time in hours. Consider a day in which t = 0 represents 12:00 midnight. For that day, when are high tide and low tide and what is depth of each
Answer:
- high tide occurs at 12 noon and 12 midnight
- Low tide occurs at 6 a.m and 6 p.m
- maximum depth value = 20 ft
- Minimum depth value = 15 ft
Step-by-step explanation:
The depth is modelled as;
y = 20 + 5 cos (πt/6)
We are told that t = 0 represents 12:00 midnight.
This is high tide because at t = 0, the cos function will be at it's maximum value of 1 since cos 0 = 1.
Max depth value is;
y = 20 + 5(0)
y = 20 ft
Minimum depth value will be the low tide and it will be when the cos function is equal to -1.
Thus;
y = 20 + 5(-1)
y = 15 ft
Since t represents number of hours and since at 12 midnight, t = 0, thus; high tide will occur again at;
12 noon
Also, let's check for low tide.
Let's try t = 6 which means 6 a.m
Thus;
y = 20 + 5 cos (π(6)/6)
y = 20 + 5 cos π
Cos π has a value of -1
Thus;
y = 20 + 5(-1)
y = 20 - 5
y = 15 ft
Thus;
Low tide occurs at 6 a.m and 6 p.m
Lamar ate 35% of the candies in the bag. If Lamar ate 28 candies, how many candies were there total in the bag?
Answer:
80
Step-by-step explanation:
Which number line shows the solution of 2x- 8>-4?
Answer:
The answer is B I just checked a math sumulater
Step-by-step explanation:
Desperately need help
The values of A, B and C that would complete the table is 0, -3 and -7 respectively.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given the equation y = -2x - 3. Using the table of values:
When x = -1; y = -2(-1) - 3 = 0
When x = 0; y = -2(0) - 3 = -3
When x = 2; y = -2(2) - 3 = -7
The values of A, B and C that would complete the table is 0, -3 and -7 respectively.
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PLS HELP WILL GIVE 25 POINTS
by what percent should jack increase the number x to get 9/4*x
Answer:
125%
Sorry for no explaination ;-;
Find the distance d(A,B) between points A and B.
A(2,-6); B(2,2)
What has been your biggest learning for this year?
Answer: my biggest learning is for this year is how bill of rights works
Step-by-step explanation:
Is the given sequence arithmetic? If so identify the common difference. 3,8,13,28
Answer:
yes,5
Step-by-step explanation:
Help ASAP
Liz sewed a quilt with an area of 900 square inches. The length of the quilt is 30 inches. What is the perimeter of the quilt? Enter your answer in the box below.
inches
Answer:
The answer is 120 inches
Step-by-step explanation:
900 is the area the area of a rectangle is A=lw
So 900=30w
900/30=w
30=w
multiply 30 by 4 to get the perimeter
Write a linear equation with a rate of change of -5 and initial value at (0, 4)
Answer:
Initial Value: 25, Rate of change -5.
Step-by-step explanation:
First. Lets find the rate of change.
y2-y1/x2-x1 = m
We have A(1,20) B(3,10)
10-20/3-1=-5
m=-5(Rate of change)
Now let's find the initial value using slope-point form.
y-y₁=m(x-x₁)
y-20=-5(x-1)
=-5x+5+20
=-5x+25
The initial value is the value of y when the value of x is equal to 0. (Also the Y-Intercept)
Initial Value = -5(0)+25
=25
Please show work!! Will rate 5 stars and give thanks
Using proportions, we have that:
6. From the last pool, 46.43% of voters were for the candidate.
7. Janie makes the triple amount of Jenny.
8. The balance has increased by 3.02% during the year, not 3%.
9. The statement that 10% of the students in the class are men with blond hair is correct.
10. There is a intersection between the percentages of Democrats and of union members, hence we can not affirm that the sets are independent and that 18% of the voters are Democrats who are union members.
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.
For item 6, we have that:
A 40% increase is represented by 1.4x.The resulting percentage is of 65%.Hence:
1.4x = 65
x = 65/1.4
x = 46.43%.
From the last pool, 46.43% of voters were for the candidate.
For item 7, we have that 200% more than a measure is given by:
x + 2x = 3x.
As the measure by itself is of 100%, hence:
Janie makes the triple amount of Jenny.
For item 8, we have that:
The 1% increase on the first semester is represented by 1.01.The 2% increase on the second semester is represented by 1.02.Hence the yearly increase is given by:
1.01 x 1.02 = 1.0302 = 3.02%.
The balance has increased by 3.02% during the year, not 3%, because the 2% increase on the second semester is over the 1% increase in the first semester, hence the coefficients are multiplied.
For item 9, we have that:
50% of the students are men.Of the men(50%), 20% have blond hair.Hence:
0.2 x 0.5 = 0.1.
The statement that 10% of the students in the class are men with blond hair is correct.
For item 10, we have that:
45% of the voters are Democrats.40% of the voters are union members.There is a intersection between the percentages of Democrats and of union members, hence we can not affirm that the sets are independent and that 18% of the voters are Democrats who are union members.
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A department store sells a pair of shoes with an 87% markup. If the store-bought
the pair of shoes for $55.25, what is the selling price to the nearest dollar?
Answer:
Step-by-step explanation:
55.25x.87=48.07
55.25+48.07=103.32
Show how to solve this two step problem. My item is 40% off. The original price is X. Explain the two one step equations you would use to solve this (to find the sales price). a. Now, I figured out that the original cost was $145, what is the real sales price?
What is the quotient of 6/7and 3/14?
Answer:
4
Step-by-step explanation:
PLEASE ANSWER ASAP !!!!!
Find the length of the missing side
Answer:
52
Step-by-step explanation:
To solve, use the Pythagorean Theorem, which says c² = a² + b². Enter 20 as a and 48 as b and square them both. This will give you 400 for a, and 2304 as b. Add them to get 2704. So, c² = 2704. Find the square root of this to get 52. So, the third side is 52 in length.
pls solve the question attached
Answer:
The answer is 75.011
add the given values only make sure the decimal points are in the same line
a basketball player shoots 50 times during practice. Score 28 baskets. What is the ratio of your total shots and your scores?
Answer:
total shots to baskets - 50:28 or as a fraction 20/28
Simplified - 25:14 or 25/14
Step-by-step explanation:
Ratios can be written as fractions
If you wanted to do baskets to total shots you would just switch around your numbers and the ratio would become reversed as well.
At the beginning of the year, Alyssa had $100 in savings and saved an additional $7
each week thereafter. Colton started the year with $55 and saved $10 every week. Let
A represent the amount of money Alyssa has saved t weeks after the beginning of the year and let C represent the amount of money Colton has saved t weeks after the
beginning of the year. Write an equation for each situation, in terms of t, and determine the amount of money Alyssa and Colton have saved in the week that they
have the same amount of money saved.
Answer:the answer is 4.55
Step-by-step explanation:
What is the image point of (7,-5)(7,−5) after a translation right 3 units and down 1 unit?
Answer:
The translated image point would then be (10, -6) (10, -6)
Step-by-step explanation:
The image point of (7,-5)(7,−5) after a translation right 3 units and down 1 unit is (4,-6)(4,−6)
What is translation?A translation is a type of transformation that takes each point in a figure and slides it the same distance in the same direction.
Now the given points are,
(7,-5)(7,−5)
So, when the image points translates right 3 units there is change in x coordinate. Thus,
(7,-5)(7,−5)
= (7-3,-5) (7-3,−5)
= (4,-5)(4,−5)
and, when the image points translates down 1 unit there is change in y coordinate. Thus,
(4,-5)(4,−5)
= (4,-5-1)(4,−5-1)
= (4,-6)(4,−6)
Thus, the image point of (7,-5)(7,−5) after a translation right 3 units and down 1 unit is (4,-6)(4,−6).
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1. Find the GCF of the terms of each polynomial.
a. 15x2 + 18
Answer:
4894-
Step-by-step explanation:
dsfghbsvacfvgb VSCDFVRGb vzxVfd xvf cdv
3x-2y=10
y=2x-5
I NEED HELP PLS
Helppp! I’m stuck on this . What is the weekly profit ?
Answer:
$901
Step-by-step explanation:
x=37units
48 (37) - 875
1776-875
901
what is 1000m in 2 minutes?
is this somthing that your looking for?
simplify the ratio 24 over 36
Answer:
2:3
Step-by-step explanation:
I checked it and it’s right. I hope this helps!
Benjamin deposit $3,000 into each of two savings accounts the first savings account pays 5% interest compounded annually the second savings account pays 5% simple interest annually if Benjamin makes no other deposits or withdrawals what will be the difference between the interest earned by the two savings accounts after 4 years?
A) $46.52
B) $28.8
C) $646.52
D) $3,046.52
Answer:
The answer is B
Step-by-step explanation:
Example 3: The following data was collected by a taxi driver who was interested in how much fuel he used on different journeys. Length of journey 100 250 150 180 220 (miles) 300 Fuel Used (liters) 24 59 44 50 59 97 Estimate how much fuel would be needed for a 200-mile journey.
Answer:
For a 200 mile journey, 55.5 liters of fuel
is needed
Step-by-step explanation:
Here, we want to estimate the fuel needed for a 200 mile journey
we can use this by having an average
By adding all and dividing by 6
Mathematically, that will be;
(24 + 59 + 44 + 50 + 59 + 97)/6
= 55.5
The reason for this is because if we added all the lengths and divide by 6, what we get is 200
Thus, if we added the liters of fuel used per each and divide by 6, we can have an estimate for a 200-mile journey
A large deer population lives in Pleasant view. As more and more people move to the city, the deer population is on the decline. Current deer population is 1600. It is declining 12% each year. What is the Equation, and table of values ?
em 2008 lançou o primeiro voto que não sei de quem não sei
What is the coordinate of the solution for the following equations? y = 4x – 9 y = -3x + 12
Answer:
x = 60/17, y = 24/17
Step-by-step explanation: