Answer:
(-2x²- 4x + 2) - (-6x + 2) = -2x²+ 2x
Step-by-step explanation:
(-2x²- 4x + 2) - (-6x + 2)=
= -2x²- 4x + 2 + 6x - 2 =
= -2x²+ 2x
solve for x!!! !!!!!!!!!!!!!!!!!!!!!!!!
Answer:
X=8
Step-by-step explanation:
2(x+1)+3=3(x-1)
2x+2+3=3x-3
2+3+3=3x-2x
8=x
Question 2 - Find the nth term of the following
a) 10, 7, 4, 1
b 6, 4, 2,0
c) 9,4 -1,-6
d) 2.5, 2. 1.5, 1
Please help me quick
Answer:
nth term = 10 + (n - 1)-3
Step-by-step explanation:
a) 10, 7, 4, 1
First term,a = 10
Common difference,d = 7 - 10 = -3
nth term = a + (n - 1)d
nth term = 10 + (n - 1)-3
b 6, 4, 2,0
First term,a = 6
Common difference,d = 4 - 6 = -2
nth term = a + (n - 1)d
nth term = 6 + (n - 1)-2
c) 9,4 -1,-6
First term,a = 9
Common difference,d = 4 - 9 = -5
nth term = a + (n - 1)d
nth term = 9 + (n - 1)-5
d) 2.5, 2. 1.5, 1
First term,a = 2.5
Common difference,d = 2 - 2.5 = -0.5
nth term = a + (n - 1)d
nth term = 2.5 + (n - 1)-0.5
Given the equation 1/2(d + 4) = 4.25, what is the value of d?
2
d = 4.5
d = 3.75
d = 0.25
d = 8
Answer:
d=4.5
Step-by-step explanation:
how many gallons of gas can you get for $15.80
PLEASE I NEED HELP FAST ITS PAST DUE AND IM STUCK ON THIS ONE. ILL MRK BRAINLIEST FOR THE FIRST PERSON WHO GIVES ME THE CORRECT ANSWER
Answer:
[tex]-27x^2\\[/tex]
Step-by-step explanation:
(Assuming you can use a calculator)
[tex]\sqrt[3]{-729x^6} = \sqrt[3]{-1} * \sqrt[3]{729} * \sqrt[3]{x^6} \\\sqrt[3]{-1} =-1\\\sqrt[3]{729} = 27\\\sqrt[3]{x^6} = ((x^6)^{1/3}) = x^(6/3) = x^2\\\\hence\\\sqrt[3]{-729x^6} = -1*27*x^2 = -27x^2[/tex]
Answer:
d
Step-by-step explanation:
use cross products property to solve the proportion a/6=15/2
Answer:
a = 45
Step-by-step explanation:
[tex]\frac{a}{6} = \frac{15}{2}[/tex] Original equation.
[tex]a = 6(\frac{15}{2})[/tex] To solve for a, multiply both sides by 6 to isolate a.
[tex]a = 3(15)[/tex] 6 reduces to 3 when divided by 2.
[tex]a=45[/tex] Multiply 3 and 15 to get a.
PLEASE HELP ME SOMEONE UGH I HATE WORK IM SO BAD :(
Answer:
X=19/3
Step-by-step explanation:
3x=14+5
3x=19
X=19/3
and I feel you hegarty can be a pain in the a.ss
Answer:
see the answer above by picture. i think i helped mark me as brainlist plz
A triangle has a base of 3 inches and an area of 5 to square inches. Find the height of
the triangle. Show your reasoning.
Answer:
Four Is The Answer
Step-by-step explanation:
Thx Me Later
9+3x+7=4x do this pls
Answer:
x=16
Step-by-step explanation:
9+3x+7=4x
9+7=x
x = 16
Answer:
x=16 is the answer to this question
How many three-digit numbers are divisible by 2,3 or 5? plEASe helP I aM DeSpeRatE
GIVE ME THE RIGHT ANSWER
Answer:
30
Step-by-step explanation:
- A number is divisible by 2 if its last digit is 2, 4, 6, 8 or 0
- A number is divisible by 3 if ist sum of digits is divisible by 3.
- A number is divisible by 5 if its last digit is a 5 or a 0.
_
The least 3 digit number divisible by 30 is 120 and the greatest is 990.
Answer: 30
Step-by-step explanation:
Divisible by 2,3 and 5 means divisible by 2*3*5=30
So we require to calculate number of multiples of 30 in the range 100 to 999.
The least 3 digit number divisible by 30 is 120 and greatest is 990.
This is an AP series with common difference 30.
First number is 120 and n'th number is 990.
We need to find n.
Using the AP series formula
120 + (n-1)*30= 990
or n= 30
There are 30 3-digit numbers divisible by 2,3 and 5.
Diamond is playing a game. In the game she has to spin a spinner
that is divided into 4 equal sections of green, red, blue, and yellow.
What is the probability that on her first spin she will land on green
and then red on her second spin?
Answer: 1/16
In decimal form, this is equivalent to 0.0625
=====================================================
Explanation:
Each of the four sections are of equal area, so that means the probability of landing on any given color is 1/4.
The probability of landing on green first is 1/4, then followed by red is another 1/4. We multiply these fractions. This is valid because each event of spinning the spinner is independent of one another. None of the spins affect any others.
We then get (1/4)*(1/4) = (1*1)/(4*4) = 1/16
The probability of Diamond landing on the green on her first spin and then red on her second spin is 1/16.
What is probability?It is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required event / Total number of outcomes.
Example:
The probability of getting a head in tossing a coin.
P(H) = 1/2
We have,
Assuming that each section of the spinner has an equal chance of being landed on, the probability of landing on the green on the first spin is 1/4.
Since each spin is independent of the others, the probability of landing on red on the second spin is also 1/4.
To find the probability of both events happening, we multiply the probabilities of each event:
P(green and red) = P(green) × P(red) = 1/4 × 1/4 = 1/16
Therefore,
The probability of Diamond landing on the green on her first spin and then red on her second spin is 1/16.
Learn more about probability here:
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Giving brainliest to the most accurate
13) Find the measure of an exterior angle of a regular 20-gon.*
360
n
A) 18°
OB) 20°
0 C) 162
Kari bought a fountain online. It cost $946 plus 28% shipping and handling. What was the total cost?
Answer:
$1210.88
Step-by-step explanation:
100 + 28 = 128
946/100 X 128 = 1210.88
What is the circumference of the circle
below?
You can buy a 49 pound bag of flour for nine dollars or you can buy a one pound bag for $.41 compare the per pound cost for the large and small bags
Answer:
49 pound bag=$.19 per pound
one pound = $.41 per pound
Step-by-step explanation:
49 pound bag for $9
$9/49=$0.1836 per pound
49 pound bag=$.19
one pound = $.41 per pound
Is the following function discrete, continuous, or neither?
continuous function
is correct :D
Where are my smart friends?? I had $13.00. My Mom gave me $10.00. My Dad gave me $30.00. My Aunt, My Uncle, and grandma gave me $100.00. I had another $7.00. How much did I have? I won against Nancy Boyd
Answer:
This would bring you to $160.00. This is because you initially had $20.00, because of the $13 and $7. Then, your family gave you a total of $140.00, and 140 + 20 = 160.
Step-by-step explanation:
The total amount of money he had is $160 and this can be determined by using the arithmetic operations and the given data.
Given :
I had $13.00. My Mom gave me $10.00. My Dad gave me $30.00. My Aunt, My Uncle, and grandma gave me $100.00. I had another $7.00.The arithmetic operations can be used in order to determine the total amount of money he had.
The initial amount of money he had is:
= $13 + $7
= $20
His Mom gave him $10.00. So, the total amount of money now he had is:
= $20 + $10
= $30
His Dad gave him $30.00. So, the total amount of money now he had is:
= $30 + $30
= $60
His Aunt, Uncle, and Grandma gave him $100. So, the total amount of money now he had is:
= $60 + $100
= $160
For more information, refer to the link given below:
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What is the value of y?
40°
y +30
A. 1100
B. 10°
C. 55°
D. 850
Answer:
the answer is c or 55
Step-by-step explanation:
good luck on your quiz!
A rancher needs to build a water storage tank for her cattle. The cattle drink 3 cubic meters of water each day and the rancher wants the new tank to hold a 5-day supply of water. If the new tank has a radius of 2 meters, how tall will the tank need to be?
Answer:
The height of the storage tank would be approximately 1.2 m.
Step-by-step explanation:
The cattle drink 3 cubic meters of water each day.
For 5 days,
the cattle would drink = 3 cubic meters x 5
= 15 cubic meters of water
Thus,
The volume of the storage tank = 15 cubic meters
But,
volume of a cylinder = [tex]\pi[/tex][tex]r^{2}[/tex]h
where r is the radius and h the height.
So that,
15 = [tex]\frac{22}{7}[/tex] x [tex]2^{2}[/tex] x h
15 = [tex]\frac{22}{7}[/tex] x 4 x h
15 = 12.57h
h = [tex]\frac{15}{12.57}[/tex]
= 1.1933
h = 1.2 m
The height of the storage tank would be approximately 1.2 m.
Pleaseeee helppp answer correctly !!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answer:
x = 39º; y = 45º
Step-by-step explanation:
97 + 44 + x = 180
141 + x = 180
x = 39º
y + 52 = 97
y = 45º
Which expression is equivalent to 2.2m2 – 3.5(4m – 1.4) + 3.6(8m2 – 4.5m)?
Answer:
31m2−30.2m+4.9
Step-by-step explanation:
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The equivalent expression to 2.2m² – 3.5(4m – 1.4) + 3.6(8m² – 4.5m) is
31m² - 30.2m - 4.9
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
2.2m² – 3.5(4m – 1.4) + 3.6(8m² – 4.5m)
Remove the parenthesis.
2.2m² - 3.5 x 4m - 3.5 x 1.4 + 3.6 x 8m² - 3.6 x 4.5m
2.2m² - 14m - 4.9 + 28.8m² - 16.2m
Combine the like terms.
31m² - 30.2m - 4.9
Thus,
The equivalent expression to 2.2m² – 3.5(4m – 1.4) + 3.6(8m² – 4.5m) is
31m² - 30.2m - 4.9
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The value of x in the equation 161 - 6 - 26 is
Answer:
129
161-6=155-26=129 so x is 129
Answer:
x= 129
Step-by-step explanation:
161-6-26=x
161-6= 155
155-26= 129
x=129
Suppose I randomly choose 4 distinct integers between 1 and 60. Is it true, or is it not true, that at least 2 of them must differ by no more than 19.
Answer:
It’s true
Step-by-step explanation:
Proof by induction
Let the four chosen numbers be x_1, … x_4 and, without loss of generality, let x_1 < x_2, … < x_4.
For x_1 = 1, the smallest possible choice, let x_2 = x_1 + 20 = 21 be the smallest possible choice that has a difference larger than 19. Likewise, x_3 = x_2 + 20 = x_1 + 40 = 41. Then x_4 has to be at least x_3 + 20 = x_1 + 60 = 61 which is out of range.
For the induction, suppose that x_4(n) = x_1(n) + 60 > 60 and therefore x_4(n) can’t be chosen for a given x_1(n). Then incrementing x_1(n+1) = x_1(n) + 1 would require x_4(n+1) to be at least x_1(n) + 1 + 60 = x_4(n) + 1 > 61, so this is out of range as well.
For another induction, suppose that x_4(n) = x_2(n) + 40 > 60 and therefore x_4(n) can’t be chosen for a given x_2(n). Then incrementing x_2(n+1) = x_2(n) + 1 would require x_4(n+1) to be at least x_2(n+1) + 40 = x_4(n) + 1 > 61, so this is out of range as well.
Likewise, for the induction, suppose that x_4(n) = x_3(n) + 20 > 60 and therefore x_4(n) can’t be chosen for a given x_3(n). Then incrementing x_3(n+1) = x_3(n) + 1 would require x_4(n+1) to be at least x_3(n+1) + 20 = x_4(n) + 1 > 61, so this is out of range as well.
Therefore all choices of x_1, x_2, x_3 with differences greater than 19 leaves no choice of x_4 within range with x_4 > x_3 + 19.
Given a triangle with side lengths of a, b, and c, where c is the longest side, which statement is true?
Answer:
If a^2 + b^2 =c^2, then the triangle is a right triangle.
Step-by-step explanation:
Given
Shape: Triangle
Sides: a, b, c
Longest: c
Required
Select the true statements (See comment section for options)
From the options, we can see that we need to prove if the triangle is right-angled or not.
Since side c is the longest side, it means that side c is the hypotenuse.
Applying Pythagoras theorem
We have that:
[tex]a^2 + b^2 = c^2[/tex]
If the above mathematical statement is true, then the triangle is right-angled
Answer:
If a^2 + b^2 =c^2, then the triangle is a right triangle.
Step-by-step explanation:
LA BASE DE UN RECTANGULO ES 8 M MAYOR QUE LA ALTURA, EL AREA MIDE 65 METROS CUADRADOS ¿CUANTO MIDEN LA BASE Y ALTURA?
Answer:
23 m and 15 m
Step-by-step explanation:
THE BASE OF A RECTANGLE IS 8 M GREATER THAN THE HEIGHT, THE AREA MEASURES 65 SQUARE METERS HOW MUCH DO THE BASE AND HEIGHT MEASURE?
Let the height of the rectangle is h.
Base = 8+h
Area of the rectangle, A = 65 m²
We need to find the base and height of the rectangle. The area of a rectangle is given by :
A = bh
So,
[tex]65=(8+h)\times h\\\\65=8h+h^2\\\\h^2+8h-65=0\\\\(h-5)(h+13)=0\\\\h=5\ m\ \text{and}\ x=-13\ m[/tex]
Neglecting negative value, h = 15 m
Base = 8+15 = 23 m
So, the base and height of the rectangle is 23 m and 15 m respectively.
What is the probability of the spinner stop on an even number?
Answer:
Depends on what numbers are there.
Step-by-step explanation:
If the numbers are 0-10 then there is a 50% chance of the spinner stopping on an even number because there is 5 even numbers and 5 uneven numbers.
The probability of the spinner stopping on an even number will be equal to 5/10.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
P(E) = Number of favorable outcomes / total number of outcomes
The total number on the spinner is 10
The total even number on the spinner is 5.
Probability = 5/10
Therefore, The probability of the spinner stopping on an even number = 5/10
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Complete question:
-5=d/4+3 show work please.
Answer:
d= -32
Step-by-step explanation:
d/4+3=-5
d/4=-8
d=4 x (-8)
d= -32
A children's ride at an amusement park has a rule that a person must be shorter than 4 feet tall to ride it.
Create an inequality that shows the height 3, in feet, a person must be to go on this ride.
Answer:
Step-by-step explanation:
16. Which is greater, 4^-2 or
2^-4? How do you know?
Those are exponents.
Answer:
Both are equal to [tex]\frac{1}{16}[/tex]
Step-by-step explanation:
If the exponent is negative we can turn it into a fraction and make it positive.
This means the number goes to the denominator and the numerator becomes one. Therefore the following.
[tex]4^{-2} = \frac{1}{4^{2} } =\frac{1}{16}[/tex]
[tex]2^{-4} =\frac{1}{2^{4} } = \frac{1}{16}[/tex]