Answer:
A quadratic equation is an equation of the second degree, meaning it contains at least one term that is squared. The standard form is ax² + bx + c = 0 with a, b, and c being constants, or numerical coefficients, and x is an unknown variable. One absolute rule is that the first constant "a" cannot be a zero.
Step-by-step explanation:
WILL MARK YOU BRAINLIEST!!!
10. x = 180-81= 99 = 180-(99+19)= 62°
11. x = 180-115= 65 = 180-(65+41)= 74°
12. x = 180-(36+42) = 102 = 180-102 = 78°
13. a = 180-(112+33) = 35°
14. b = 180-(71+35) = 74°
15. c = 180-(43+71) = 66°
The roots of a quadratic equation are 6 and -3. Which of the following quadratic equations has these roots?
A.x ² − 3 − 18 = 0
B.x ² + 3 + 18 = 0
C.x ² − 3 + 18 = 0
D. x² + 3 − 18 = 0
√³512 =
what is the answer?
Answer:
8
Step-by-step explanation:
Write in exponential form, then simplify the root.
Answer:
67.882 about 67.9 or 68
Step-by-step explanation:
three square root 512
Need help ASAP Tysm!
Answer:
Step-by-step explanation:
35
It cost $75 to rent a limo, plus $20 per hr. Write an equation to represent the total cost,c, of renting the limo for T hours.
We must create the equation from the information. Well, we know that there is a 75 dollar fee right off the top, and there is the word "plus" in the information meaning there will be adding.
1. Add the given cost plus the addition sign.
75 + ___ = ?
Now, we must find out what fills in "__." It says that it costs $20 per hour to rent the limo. However, it doesnt tell you how many hours it is being rented for, however it does say that the amount of hours is represented by T. So, fill in that information.
2. Fill in the second number.
75 + 20T = ?
Since there isn't a number to finish the second number to the equation, we know that there isn't going to be a completed answer. So, fill in the final cost with "c" as explained in the equation.
3. Write the answer.
75 + 20T = c
So, the equation to this problem is:
75 + 20T = c
Which is how to find out how much the limo costs to rent it.
if f(x) = 2(x-3) + 4, what is f(-2)?
Answer:
-6
Step-by-step explanation:
First, replace x with -2. your equation then looks like:2(-2-3)+4. Then, you multiply 2 by everything in the parenthesis. After you multiply -2 and -3, you are left with -4, -6 +4. You then add everything together, and you get -6.
PLEASE HELP WILL GIVE BRAINLIEST AND 25 POINTS!!!
A model rocket is launched upward at a speed of 96 feet per second from a platform 7 feet above the ground. The path of the rocket can be modeled by the projectile equation, h(t)=-16t^2+v₀t+h₀
1. What is the maximum height the rocket will reach?
2. What is the average rate of change from the initial height to the maximum height?
Answer:
151 ft
48 ft/s
Step-by-step explanation:
h(t)=-16t^2+v₀t+h₀
v₀ = 96 and
h₀ = 7
h(t)=-16t^2+96t+7
The maximum height is at the vertex
The x values of the vertex is at
x = -b/2a = -96/ (2*-16) = -96/-32 =3
Substitute this into the function to find the maximum height
h(3) = -16 ( 3)^2 +96*3+7
-16*9 +288+7
151
The maximum height is 151 ft
Average rate of change from 0 to 3
h(3) - h(0)
---------------
3-0
151 -7
------------
3
144/3
48ft/s
the ribbon on a roll is 3 1/2m long. Joe wants to cut pieces of ribbon that are each 1/6 m long. he needs 50 pieces. how many rolls will he need?
Anggggggggggggggu
Step-by-syuuyyuuytion:
gggggggg
Which of the following pairs of angles are
complementary?
A. 24° and 66°
B. 56° and 124°
C. 24° and 66°; 34° and 56°
D. 56º and 124°; 66° and 114°
Answer:
C.
Step-by-step explanation:
Complementary pairs add up to 90 degrees.
24+66=90.
34+56=90.
Which transformation takes Figure A to Figure B in Pair 2:
• translation
• rotation
• reflection
Explain your reasoning:
NEEDED ASAP!!
Answer:
reflection
Step-by-step explanation:
if you look at it, its like its mirrored itself, so its reflection
Can somebody help me with these graphs please
Answer:
10 is B and D
9 is B,C, and D
Been here for hours which one is it
Answer:
3 I do belive
Step-by-step explanation:
Answer:
-1/4 slope and 50 y intercept
Step-by-step explanation:
from,
m= (y-y1)/(x-x1)
just decide what values of x and y will be your y,x and y1 ,x1
y=50, y1=25,x=0,x1=100
m is the slope.
y intercept is the value of y
What is the x- intercept of the line?
Answer:
x-int=(-1,0) y-int=(0,2)
Step-by-step explanation:
because on the x axis (x,y) xis on 1 and on the y is on 2 so then fill in the blanks with a zero.
Answer: (-1, 0)
Step-by-step explanation: The x-intercept is the point
on the graph where the line crosses the x-axis.
So the x-intercept for the line in this graph is (-1, 0).
All x-intercepts have a y-coordinate of zero.
The Initial count of a certain type of bacteria in a culture is 350. If the bacteria grows at the rate of 20% per hour, which
function models the number of bacteria after thours?
Answer:
I think it is 350(1.2)^t because you take the starting amount (350) and then multiple it by the growth rate (which is 20%, but when added to 100 and the put into a decimal is 1.2) raised by the number of hours (t).
I hope this helps.
Step-by-step explanation:
Do I just add them together?
Answer:
yes
Step-by-step explanation:
Answer:
yes you do need to just add them
Suppose that the function f(x)=5.32+0.80x represents the cost of mailing an
object that weighs x pounds. How much would it cost to mail an object that
weighs 35 pounds?
Answer:
$33.32
Step-by-step explanation:
f(x)=5.32+0.80(35)
=5.32+28
=$33.32
The required cost of mail of the object of 35 pounds is $33.32.
Given that,
f(x)=5.32+0.80x represents the cost of mailing an object that weighs x pounds.
To determine how much would it cost to mail an object that weighs 35 pounds.
Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
Here,
function f(x) represents the cost of mail of x weigh object,
Now for the x = 35
f(x) = 5.32 + 0.80 * 35
f(x) = 5.32 + 28
f(x) = 33.32
Thus, the required cost of mail of the object of 35 pounds is $33.32.
Learn more about function here:
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Write the sentence as an inequality. 14 is no less than 8 times a number x plus 6.
Answer: 14 ≤ 8x+6
i think this is it
What is 4% of 50% of 5 ?
Answer:
0.1
Step-by-step explanation:
1. Convert percents to decimals.
0.04, 0.5
2. Solve.
(0.04)(0.5)5
0.1
Answer:
0.1
Step-by-step explanation: Solve from right to left using multiplication.
50% = 1/2
5 x 1/2 = 2.5
4% = 0.04
2.5 x 0.04 = 0.1 :)
simplify the expression 8a-2b+4 for the value a=3 and b = -5
Answer:
38
Step-by-step explanation:
Simply plug in 3 where a is, and -5 where b is as such.
[tex]8(3) - 2(-5) +4[/tex]
[tex]24 + 10 + 4[/tex]
= [tex]38[/tex]
Answer:
38
Step-by-step explanation:
Don't worry this is pretty easy! Simply plug in your given values into the expression. So if a=3 and b=-5, we would put this in the equation.
8(3)-2(-5)+4
24+10+4<--- -2(-5) would be 10 since negatives cancel out. Remember to first to parentheses, then multiply/divide next.
38
What is the domain of the following set of points? *
{(3,4), (7,-2), (11, -8)}
Answer:
{3,7,11}
Step-by-step explanation:
Domain is all of x-values. In case of this problem, it is 3,7,11.
16X = 22 + 5x
what is x
Answer:
x=2
Step-by-step explanation:
16x = 22+5x
1) 16x-5x = 22 + 5x - 5x =
11x = 22
x=2
Answer:
x=2
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
16*x-(22+5*x)=0
Pull out like factors :
11x - 22 = 11 • (x - 2)
Solve : 11 = 0
This equation has no solution.
A non-zero constant never equals zero.
Solve : x-2 = 0
Add 2 to both sides of the equation :
x = 2
Your cousin plays point guard for her community basketball team. When she plays in a game, four out of every seven baskets she scores for her team are lay-ups.
If your cousin scores fourteen baskets for her team at Saturday night's game, how many were lay-ups?
If, during the course of the season, your cousin scores one hundred nineteen baskets for her team, how many were lay-ups?
If, during a month of playing in basketball games, your cousin makes twenty four lay-ups, how many total baskets did she score for her team?
Answer:
Step-by-step explanation:
8
because if you devide 14 by 7 you get 2 so you times 4 by 2 and get 8
Answer:
1. 8 are lay ups
2. 68 are lay ups.
3. She scored 42.
Step-by-step explanation:
I need a 2 step equation that equals 22
2. Find the product of (x+1)(x^2-3x+7)
Answer:
x
2
+
3
x
−
7
=
0
Add
7
to both sides of the equation.
x
2
+
3
x
=
7
To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of
b
.
(
b
2
)
2
=
Add
7
to both sides of the equation.
x
2
+
3
x
=
7(
3
2
)
2
Add the term to each side of the equation.
x
2
+
3
x
+
(
3
2
)
2
=
7
+
(
3
2
)
2
Simplify the equation.
Tap for more steps...
x
2
+
3
x
+
9
4
=
37
4
Factor the perfect trinomial square into
(
x
+
3
2
)
2
.
(
x
+
3
2
)
2
=
37
4
Solve the equation for
x
.
Tap for more steps...
x
=
±
√
37
2
−
3
2
The result can be shown in multiple forms.
Exact Form:
x
=
±
√
37
2
−
3
2
Decimal Form:
x
=
1.5413812
,
−
4.54138126
Step-by-step explanation:
Answer:x^3-2x^2+4x+7
Step-by-step explanation:
What is the definition of a quotient?
Answer:
When two numbers get divided, they form a number, this newly formed number is the definition to QUOTIENT.
If my answer helped, kindly mark me as the brainliest!!
Thank You!!
Answer:
In mathematical terms, quotient is the value that is created after quantities have been divided.
For example, if you are asked:
What is the quotient of 24 divided by 6?
[tex]6\sqrt{24}[/tex]
The answer/quotient would be 4.
5 +5 + 9 + 0 + 2 + 8 + 9 - 5 °°
answer and ill give you brainlyest ∝ ω
Answer: 33
Step-by-step explanation: Hope this helps! :)
Answer:
-462 if the °° are 0's
Step-by-step explanation:
Pointed teeth help tear apart food, and large, flat teeth are used to grind food. Based on this information, what types of teeth are characteristic of animals that eat plants and animals that eat other animals? Plz Help ASAP
Answer:
the meat eating animals need the pointed teeth and the flat teeth. the animals that eat plants only need the flat teeth
Simplify 8x – 3x – 2x – x
Answer:
2x
Step-by-step explanation:
Use the table below to answer questions 1-4. MINUTES 0 3 6 a 12 WORDS TYPED 120 2 360 480 1 point 1. Kenny is practicing for a typing test to obtain a job as a paralegal. The number of words he can type is proportional to the number of minutes. If the test is 18 minutes long, how many words will Kenny be able to type?
Answer:
720
Step-by-step explanation:
Given the data:
Minutes ___0___3 ____6____a____12
W/typed__ 0___120 __ ____360 __480
If number of words typed is proportional to number of minutes
Word typed α number of minutes
Word typed = k * number of minutes
k = constant of proportionality
Take
120 = k * 3
k = 120/3 ; k = 40
If test is 18 minutes long ;
Word typed = k * 18
Word typed = 40 * 18
Word typed = 720
A bakery sold 168 mocha cupcakes in a day, which was 84% of the total number of cupcakes sold that day. How many total cupcakes did the bakery sell that day?
Answer:
200 cupcakes
Step-by-step explanation:
We have, 84% × x = 168
or,
84/100 × x = 168
Multiplying both sides by 100 and dividing both sides by 84,
we have x = 168 × 100/84
x = 200
If you are using a calculator, simply enter 168×100÷84, which will give you the answer.
Answer:
200
Step-by-step explanation:
168 is 84/100 of the total cupcakes. You just need to divide by 84 and the multiply by 100. So:
168÷84=2
2×100=200