Part A: x = -5/4, 3 || (-5/4, 0) (3, 0)
To find the x-intercepts, we need to know where y is equal to 0. So, we will set the function equal to 0 and solve for x.
4x^2 - 7x - 15 = 0
4 x 15 = 60 || -12 x 5 = 60 || -12 + 5 = -7
4x^2 - 12x + 5x - 15 = 0
4x(x - 3) + 5(x - 3) = 0
(4x + 5)(x - 3) = 0
4x + 5 = 0
x = -5/4
x - 3 = 0
x = 3
Part B: minimum, (7/8, -289/16)
The vertex of the graph will be a minimum. This is because the parabola is positive, meaning that it opens to the top.
To find the coordinates of the parabola, we start with the x-coordinate. The x-coordinate can be found using the equation -b/2a.
b = -7
a = 4
x = -(-7) / 2(4) = 7/8
Now that we know the x-value, we can plug it into the function and solve for the y-value.
y = 4(7/8)^2 - 7(7/8) - 15
y = 4(49/64) - 49/8 - 15
y = 196/64 - 392/64 - 960/64
y = -1156/64 = -289/16 = -18 1/16
Part C:
First, start by graphing the vertex. Then, use the x-intercepts and graph those. At this point we should have three points in a sort of triangle shape. If we did it right, each of the x-values will be an equal distance from the vertex. After we have those points graphed, it is time to draw in the parabola. Knowing that the parabola is positive, we draw in a U shape that passes through each of the three points and opens toward the top of the coordinate grid.
Hope this helps!
Answer:
Give the other guy brainliest
Step-by-step explanation:
Part A: The x-intercepts are (-5/4, 0) and (3, 0)
0=4x^2-7x-15
0=4x^2-12x+5x-15
0=4x(x-3)+5(x-3)
0=(4x+5)(x-3)
Basic math:
x=-5/4
x=3
Part B: The vertex is going to be minimum because if a>0, then the parabola opens up and it is a minimum (a as in ax^2+bx+c).
In order to find the vertex's coordinates, we can use -b/2a. In the equation, b=-7, and a=4. The formula would look like or 7/8. We now know the x coordinate. We can use that to find the y value.
y=4(7/8)^2-7(7/8)-15=y=18 =-18.0625=289/16
Part C: Graph the x-intercepts found in part A, then graph the vertex found in part B. Then graph a U shape that opens up going through all the points to make the parabola. Because it is positive, the U will face up, not down.
A large box of biscuit mix costs $6.48. The box contains 72 servings of biscuit mix. One serving is equal to 1/4 cup of biscuit mix. This table shows the amount of mix and water needed to make different numbers of biscuits. (The table is the picture attached)
Part A
What is the total number of cups of biscuit mix in one box? Show your work or explain your answer.
Part B
What is the total number of biscuits that can be made using one box of the biscuit mix?
Show your work or explain your answer.
Part C
What is the cost, in dollars and/ or cents, per biscuit? Show your work or explain your answer.
Answer:
Part A: Total number of cups of biscuit mix in one box is 18 cups.
Part B: You can make 54 biscuits using one box of biscuit mix.
Part C: 0.12 $ per biscuit.
Step-by-step explanation:
Part A: 72 x 1/4
Part B: In the chart, it shows us a pattern. The number of cups required times 3 = the number of biscuits or vice versa. So the number of cups required is 18 and 18 x 3 is 54 so we can make 54 biscuits.
Part C: 6.48$/54
Good Luck!
helppppppppppppppppppppppppppppppp
Answer:
It is a closed circle going toward the right
Step-by-step explanation:
Since it has the line under the inequality sign that makes it so it will be equal to 5 and whatever is a greater number than 5.
I hope this helps!
GIVING BRAINLIEST AND %) POINTS!!!!!
Answer:
here-
Step-by-step explanation:
hope it helped-
Answer:
now u can make the other person brainliestttt :DD
Step-by-step explanation:
Find the volume of the pyramid. Write your answer as a fraction or mixed number.
A triangular pyramid. The base is a triangle with base of 5 yards and height of 4 yards. The height of the pyramid is 8 yards.
Answer:
20.388 m^3
Step-by-step explanation:
Do you know the area of the pyramid's base?
If so, enter it into the calculator.
If not, check what data about the base you do know: choose the appropriate option in our calculator and enter your data. The base area will be calculated for you.
Enter the pyramid's height.
The triangular pyramid volume calculator will then return your pyramid's volume :)
Help me please? I Can only give 1 person the Brainiest sorry so it won't be fair but i can give 5 stars, and a like.
Based on the information given:
⇒ there are 12 people --> Emily, Delvenal, 10 other friends
⇒ the pan of brownies needs to be evenly split among them.
Consider the possibilities:
One option: cut the pan of brownies into the 12 pieces⇒ so that everyone gets one piece of brownie
Second Option: cut the pan of brownies into 24 pieces⇒ so that everyone can gets two piece of brownie
In other words, you can cut a number of pieces that must be divisible by 12 in other to split equally within the group.
Hope that helps!
im very confused. on my paper homework it says “check your work” and i have no idea what it means. could someone help.
Answer:
All your doing is going over your work to make sure you did not miss anything on the test and that u completed the whole test make sure to put your whole full name on the paper and the date.
Step-by-step explanation:
the simple answer
brailiest pls
Answer:
it means use other ways/methods that will lead you to the same answer e.g 45+45=90 or 90-45=45
80 POINTSSSSS
Over the years, separate teams of scientists have been tracking and studying different bird species in Africa. They want to know if certain bird populations have been increasing or decreasing over time. For 8 years, one team of scientists has tracked the African Fish Eagle. When their research began, there were 32,800 African Fish Eagles in Africa. Today, there are 43,952 African Fish Eagles living in Africa. Meanwhile, another team of scientists have been tracking the Tawny Eagle. Over the last 8 years, the population of Tawny eagles went from 7,900 to 10,981. Which eagle species saw a larger percent increase to their population over the last 8 years?
Answer:
Tawny Eagle
Step-by-step explanation:
Percent Change Formula
[tex]\sf percent\:change=\dfrac{final\:value-initial\:value}{initial\:value} \times 100[/tex]
African Fish Eagle
Given:
Initial population = 32,800Final population = 43,952[tex]\implies \sf percent\:change=\dfrac{43952-32800}{32800} \times 100=34 \%[/tex]
Tawny Eagle
Given:
Initial population = 7,900Final population = 10,981[tex]\implies \sf percent\:change=\dfrac{10981-7900}{7900} \times 100=39 \%[/tex]
Solution
Therefore, the Tawny Eagle species saw a larger percent increase to their population over the last 8 years.
5pts and the person with the correct answer gets brainliest
also can u do everything that it tells u to do pls
Answer:
(a) 5
(b) 3rd quartile
(c) 2nd quartile
Step-by-step explanation:
There are four quartiles in a box plot (or box and whisker plot).
The 1st is from 5 to 13
The 2nd is from 13 to 35
The 3rd is from 35 to 40
The 4th is from 40 to 48
(a) The lowest that this box plot goes is 5 (between the 4 and 6)
(b) 3rd quartile — we can see that the left and right borders are close together, meaning that the data values for this quartile are close together, and therefore concentrated
(c) 2nd quartile — we can see that this quartile is the widest, and therefore the data values are spread out
Answer the following about estimating 557/6.
Answer:The given Divisor = 6 and Dividend = 557
The Quotient is 92 and the Remainder is 5
Step-by-step explanation:
a) is the correct answer and It is underestimate.
what is estimation in maths?Definition for estimate in math is an approximate value close enough to the correct value. A lot of guesses are made to make math easier and clearer.
Given here: 557/6=92.83
a) 540/6=90
b)600/6=100
Clearly a is the better estimate and it is underestimate by 2.83
Hence, a) is the correct answer and It is underestimate.
Learn more about estimation here:
https://brainly.com/question/17961193
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PLEASE HELP I WILL GIVE BRAINLYEST
Explain if you agree or disagree with Blake's claim..
Ok i have thought about this and
no.
How do you explain the solution for -2(3n-3)+3.
I am getting 2 different answers.
Answer:
n=-1.5
Step-by-step explanation:
−2(3n−3)+3
Use the distributive property to multiply −2 by 3n−3.
= −6n+6+3
Add 6 and 3 to get 9.
= −6n+9
n=9/-6=-1.5
Hard hard hard hard hard hard hard hard
Answer:
She is incorrect
Step-by-step explanation:
She ran 5 miles per hour
The amounts below show the change (measured in feet) in water level over four months. What is the average monthly change in water level?
-2.54, -3.16, -2.82, 1.6
Which shapes have all the properties shown? Select all that apply.
A. Isosceles triangle
B. Parallelogram
C. Rectangle
D. Right triangle
E. Square
F. Trapezoid
Answer:
A, B, C, E, F
Step-by-step explanation:
Hope I helped!! PLs give brainliest!!
Eight people were asked, "How many times have you been on an airplane?" Their responses are listed below.
Answer:
Range⇒ 8
Mode⇒ 3
Step-by-step explanation:
Hope this helps
Answer:
mode is 2
Range is 6
Step-by-step explanation:
range is when you take the highest number which would be 8 and you minus by the lowest number which is 2 thus equals 6
WILL CHOOSE BRAINLIEST!!! Quadrilateral ABCD is congruent to quadrilateral RSTU. Without seeing the figures visually, which statement below is true?
1. ∠A ≌ ∠U
2. ∠AB ≌ ∠RS
3. ∠B ≌ ∠R
4. ∠AD ≌ ∠ST
2nd option
hope it helps...!!!
LOL! Just use this: https://school.ckseattle.org/documents/2019/2/6_6_Trapezoids_and_Kites.pdf
Pls pls help me answer ii put this attachment
Answer:
1/4 is ur answer :)
Step-by-step explanation:
Hoped It Helped
Venell put together a model train with 25 train cars. Each train car is
80 millimeters long. How many meters long is Venell's model train if
there are
no gaps between the cars? (1 meter = 1,000 millimeters)
Show your work.
Answer:
2,000 or 2 meters :)
Step-by-step explanation:
We must multiply :)
80 x 25 = 2,000
Since 1 meter equals 1,000 millimeters, 2,000 millimeters will equal 2 meters :)
Have an amazing day!!
Please rate and mark brainliest!!
If each square that is broken into 100 parts is considered a whole, which model represents 0.68 of 2?
2 models divided into 100 parts. Left: 68 are shaded gray. Right: 68 are shaded gray.
2 models divided into 100 parts. Left: 70 are shaded dark gray. 30 are shaded light gray. Right: 0 are shaded dark gray. 40 are shaded light gray.
2 models divided into 100 parts. Left: 60 are shaded dark gray. 40 are shaded light gray. Right: 20 are shaded dark gray. 20 are shaded light gray.
2 models divided into 100 parts. Left: 100 are shaded gray. Right: 100 are shaded gray.
Answer:
A. 2 models divided into 100 parts. Left: 68 and shaded gray. Right: 68 are shaded gray.
Step-by-step explanation:
What can I do to get my experimental probability closer to the theoretical probability?
Answer:
The more trials you carry out
Step-by-step explanation:
(for example, the more times you toss the coin), the closer the experimental probability is likely to be to the theoretical probability.
Help!! if you show work that would be good
Answer:
pi*r2=103.04
Step-by-step explanation:
mult. 3.14*6*6
A recipe calls for 2/3 cup of butter to make 2 1/2 cups of sauce. What would be the amount of butter needed to make 10 cups of sauce?
A. 1 1/3 cups
B. 2 cups
C. 2 2/3 cups
D. 3 1/6 cups
Answer:
make me brainliest
Step-by-step explanation:
10/2.5=4
4 times 2/3=2.6 recurring
so 8/3=2 2/3
please help i need to solve for m and n
Answer:
[tex]\Longrightarrow:\boxed{\sf{x=22}}[/tex]
Step-by-step explanation:
To find the value of x, isolate it on one side of the equation.
Given:
[tex]\Longrightarrow: \sf{m: (2x-26)}\\\\\\\Longrightarrow: \sf{n: (7x+8)}[/tex]
[tex]\Longrightarrow: \sf{2x-26+7x+8=180}[/tex]
First, combine like terms.
[tex]\Longrightarrow: \sf{2x+7x-26+8=180}[/tex]
Add the numbers from left to right.
2x+7x=9x
[tex]\Longrightarrow: \sf{9x-26+8=180}[/tex]
-26+8=-18
[tex]\Longrightarrow: \sf{9x-18=180}[/tex]
Add by 18 from both sides.
[tex]\Longrightarrow: \sf{9x-18+18=180+18}[/tex]
Solve.
Add these numbers from left to right.
180+18=198
[tex]\Longrightarrow: \sf{9x=198}[/tex]
Divide by 9 from both sides.
[tex]\Longrightarrow:\sf{\dfrac{9x}{9}=\dfrac{198}{9}}[/tex]
Solve.
Divide the numbers from left to right.
198/9=22
[tex]\Longrightarrow: \boxed{\sf{x=22}}[/tex]
Therefore, the correct answer is x=22.I hope this helps. Let me know if you have any questions.
What's the answer to this math problem?
Answer:
Step-by-step explanation:
pls help
In a small town, the population increased from 2,500 people in 2020 to 3,200 people in 2021. What is the percent increase in population?
The percentage of increase in population from 2020 to 2021 is 28 percent.
Given that, in a small town, the population increased from 2,500 people in 2020 to 3,200 people in 2021.
Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Here, difference in population between 2021 and 2020 is
3200-2500
= 700
The percent increase in population is
= 700/2500 ×100
= 700/25
= 28 percent
Therefore, the percentage of increase in population from 2020 to 2021 is 28 percent.
To learn more about the percentage visit:
brainly.com/question/24159063.
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would make my life easier thank you
are of A circle = πr² = 3.14×3×3
28.27cm² or π9cm²
hope it helps...!!!
Draw a rectangle that is 4 squares long and 1 2 of a square wide. Then add up the partial squares to find the area. Multiply to check your answer
Answer:
Area: 2
I just answered the part about the area because drawing the rectangle is easy.
Another garden in the shape of a parallelogram covers 76 square feet. Its height is 4 feet. What is its base?
Answer:
b=19ft
Step-by-step explanation:
You do 76(area)/4(height) which gives you 19ft
Who is Keisha Alexinne Bertulfo
Answer:
i dont know
Step-by-step explanation:
Please Help Me???
Which equation matches the graph?
A.
B.
C.
D.