Answer: 12x^2 +5x + 7
Step-by-step explanation:
You just need to combine like terms. you can combine 8x^2 and 4x^2 since they both have the same x^2 value. There is nothing to combine 5x with, so it remains 5x. Finally, you add the two integers, 4 and 3. This gives you the final answer, which is a quadratic equation.
Answer:
12x^2+5x+7
Step-by-step explanation:
Round 10,982 to the nearest ten thousand
Answer:
10980
Step-by-step explanation:
10,000
Since the thousand is 0 you keep the ten thousand at 1 and make all other digits 0.
Factor as the product of two binomials 81 + 18x + x*2
Answer:
(x+9)(x+9)
Step-by-step explanation:
Factor 81+18x+x^2
x^2+18x+81
=(x+9)(x+9)
Pls help I’ll brainlest):
Step-by-step explanation:
cross-multiply
4y = -2
y = -2/4
y = -1/2
Answer-
y=-1/2
Multiply each side by -2 to isolate the variable.
1/4 x -2 = -1/2
Blake is going to invest in an account paying an interest rate of 3% compounded annually. How much would Blake need to invest, to the nearest ten dollars, for the value of the account to reach $83,000 in 16 years?
Answer:
51720
Step-by-step explanation:
Elsa, Chang, and Bob have a total of 104 in their wallets. Chang has 3 times what Bob has. Elsa has 6 more than Bob. How much does each have?
Answer:
Bob=19.60
Elsa=25.60
Chang=58.80
Step-by-step explanation:
(E)lsa + (C)hang + (B)ob=104
C=3B
E=B+6
substitute
(B+6)+3B+B=104
5B+6=104
5B=98
5B/5=98/5
B=19.60
E=19.60+6=25.60
C=3(19.60)=58.80
What is -2.5(8-b) simplified
. Given that r satisfies the inequality 20.x > 33,
find the smallest value of x if .r is a prime number.
Answer: x = 2.
Step-by-step explanation:
By an online search, i found that the question is:
"Given that x satisfies the inequality 20*x > 33, find the smallest value of x if x is a prime number."
To find the smallest value of x we need to input different possible values of x (where we have the condition that x must be a prime number) and see which one is the first one that makes the inequality true.
The prime numbers are:
2, 3, 5, ....
Let's start with the smaller one, x = 2
So we input it in the inequality and get:
20*2 > 33
40 > 33
this is true.
Then we can have x = 2, which is the smaller prime number that satisfies the inequality.
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•ayuda please •
is important
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ayúdenme porfis, al menos♧ la primera operación ♧
Answer:
Step-by-step explanation:
number 2= 2 (rounded)
same thing for 1
Step-by-step explanation:
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Solve y = x + 6 for X.
x= y + 6
x= -y + 6
x = y - 6
x= -y - 6
Answer:
x=y-6
Step-by-step explanation:
First, flip the equation.
x+6=y
Finally, add -6 to both sides.
x+6+−6=y+−6
x=y−6
Justin bought 12 souvenirs
during 6 days of vacation. How
many days will Justin have to
spend on vacation before he will
have bought a total of 20
souvenirs?
Answer:
10 days
Step-by-step explanation:
12 souvenirs during 6 days = 2 souvenirs per day
2x = 20
divide 2 on each side
x = 10
The expression below shows how to convert 12 gallons to cups with one part missing
.
Which value completes the expression?
A.
B.
C.
D.
Answer:
The answer would be C
Step-by-step explanation: I got it correct on my test
Answer:
C. 4 quarts 1 gallon
Step-by-step explanation: i got it correct on the test, and someone else said it which validates me
3 1/3x-5.3= -2 solve for x
Answer:
x = -3.1832
Step-by-step explanation:
3 1/3x-5.3=-2
3.33x-5.3=-2 Change fraction into decimal
5.3*-2= -10.6 rearrange
3.33x=-10.6 rearrange
10.6/3.33 = -3.1832 divide
what is the binomial expansion of (x+1)^8
Bradley's Copiers sells and repairs photocopy machines. The manager needs weekly forecasts of service calls so that he can schedule service personnel. Use the actual demand in the first period for the forecast for the first week so error measurement begins in the second week. The manager uses exponential smoothing with a = 0.1. Forecast the number of calls for week 6, which is next week.
Week Actual Service Calls 2
1 8
2 34
3 38
4 27
5 25
The forecast for week 6 is ________ service calls.
Answer:
28.86
Step-by-step explanation:
According to the scenario, computation of given data are as follows,
Exponential smoothing a = 0.1
we can calculate forecast for each week by using following formula,
Forecast for week = Forecast of last week + a × ( actual calls of last week - forecast of last week)
By using this method, forecast for all week are as follows
Week Actual calls Forecast Calculation
1 28 28
2 34 28 [28 + 0.1 × ( 28 - 28)]
3 38 28.60 [28 + 0.1 × ( 34 - 28)]
4 27 29.54 [28.6 + 0.1 × ( 38 - 28.6)]
5 25 29.29 [29.54 + 0.1 × ( 29 - 29.54)]
6. 28.86 [29.29 + 0.1 × ( 25 - 29.29)]
2.5x + 1.5 = 4x - 11 what is x
Answer:
X = 8.3 (shortened)
Steps for answer!
1. Subtract 2.5x from both sides.
1.5=4x-11-2.5x
2. Simplify 4x-11-2.5 to 1.5x-11
1.5=1.5x-11
3. Add 11 to both sides.
1.5+11=1.5x
4. Simplify 1.5+11 to 12.5.
12.5=1.5x
5. Divide both sides by 1.5.
12.5/1.5=x
6. Simplify 12.5/1.5 to 8.3333338.333333.
8.333333=x
7. Switch sides.
x=8.333333
The word " _____ " in a word problem probably indicates you may estimate an answer.
Answer:
"in an average of" / "approximately"
Step-by-step explanation:
these clue words do not hold any definite value. therefore, it can be used for estimating.
X=5y +2 X-4y=5
What is the x and the y
Answer:
x=17 y=3
Step-by-step explanation:
x=5y+2
(5y+2)-4y=5
5y+2-4y=5
y=3
x=5(3)+2
x=17
Clara makes and sells paintings. The supplies needed to make each painting cost her $13.00. She earns $75.00 for each painting she sells.
Which set of integers best represents these values?
Answer:
im not sure, but i think its 88$-13$=75
Step-by-step explanation:
x-13$=75$=>x=88$
. A manufacturer of salad dressings uses machines to dispense liquid ingredients into bottles that move along a filling line. The machine that dispenses salad dressings is working properly when 8 ounces are dispensed. Suppose that the average amount dispensed in a particular sample of 35 bottles is 7.91 ounces with a variance of 0.03 ounces squared. Is there evidence that the machine should be stopped and production wait for repairs
Answer:
The calculated value |t| = |-3.082| =3.082 > 2.0322 at 0.05 level of significance
The null hypothesis is rejected
An alternative hypothesis is accepted
There is evidence that the machine should be stopped and production wait for repairs
Step-by-step explanation:
Step(i):-
Given that the mean of the Population(μ) = 8 ounces
Given that the sample size 'n' = 35
The mean of the sample(x⁻) = 7.91
The variance of the sample S² = 0.03 ounces
S = √0.03 = 0.1732
Step(ii):-
Null Hypothesis: H₀: There is no evidence that the machine should be stopped and production wait for repairs
Alternative Hypothesis: H₁: There is evidence that the machine should be stopped and production wait for repairs
[tex]t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }[/tex]
[tex]t = \frac{7.91 -8}{\frac{0.1732}{\sqrt{35} } }[/tex]
t = - 3.082
|t| = |-3.082| =3.082
Degrees of freedom
ν = n-1 = 35-1=34
t₀.₀₅ = 2.0322
The calculated value |t| = |-3.082| =3.082 > 2.0322 at 0.05 level of significance
The null hypothesis is rejected
An alternative hypothesis is accepted
conclusion:-
There is evidence that the machine should be stopped and production wait for repairs
For a large order, Mr. Magoo made 3/8 kg of fudge in his bakery. He then got 1/6 kg from his sister’s bakery. If he needs a total of 1 1/2 kg, how much more fudge does he need to make? Put your answer in fraction form. Example: Mr. Magoo needs to make #/# more fudge.
(PS: Please show your work)
Answer:
Amount fudge he needs = 23/24 kg
Step-by-step explanation:
Given:
Total fudge wants = 1[tex]\frac{1}{2}[/tex] = 3/2 kg
His sister gave = 1/6 kg
He make = 3/8 kg
Find:
Amount fudge he needs
Computation:
Amount fudge he needs = Total fudge wants - His sister gave - He make
Amount fudge he needs = 3/2 - 1/6 - 3/8
Amount fudge he needs = 23/24 kg
7. Si el perímetro de un cuadrado es igual 48 m El área del mismo es igual
a) 134 m? b) 144 m2 C) 154 m2 d) 124 m2
Answer:
D) 124 m2 creo .............
In ΔIJK, k = 7.2 cm, ∠J=55° and ∠K=67°. Find the length of i, to the nearest 10th of a centimeter.
Answer:
6.6
Step-by-step explanation:
The length of i is 6.6 units(after the nearest 10th of a centimeter) if in ΔIJK, k = 7.2 cm, ∠J=55°, and ∠K=67°.
What is the triangle?The triangle can be defined as a three-sided polygon in geometry and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.
We have a triangle:
As we know the sum of the triangle is 180°
So I = 180 - 55 - 67 = 58°
Applying sin law to calculate the value of i:
[tex]\rm \frac{i}{sin58} = \frac{k}{sin67}[/tex]
[tex]\rm i = \frac{7.3\times sin 58}{sin67}[/tex]
i = 6.633 units ≈ 6.6 units (sin58 = 0.848, and sin67 = 0.920)
Thus, the length of i is 6.6 units(after the nearest 10th of a centimeter) if in ΔIJK, k = 7.2 cm, ∠J=55°, and ∠K=67°.
Learn more about the triangle here:
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Define proportional reasoning
Answer:
It is coming to a conclusion based on rational thinking, comparing quantities to values.
Figurative Language Escape Room: Find the 4-Digit Code
Answer:
A = 3
B = 8
C = 2
D = 5
Step-by-step explanation:
The language is solved and the four digit code is given by
A = 3
B = 8
C = 2
D = 5
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
2 + 1 = A
On simplifying the equation , we get
A = 3
Now , 3 + 5 = B
B = 8
And , D + 3 = 8
Subtracting 3 on both sides , we get
D = 5
And , 3 + C = 5
Subtracting 3 on both sides , we get
C = 2
Hence , the four digit code is A = 3 , B = 8 , C = 2 , D = 5
To learn more about equations click :
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joan grew a plant from a seedling the seedling was 3/8 inch tall when she planted it one week later the plant was 7/8 inch tall how much did the plant grow in that week
Answer:
4/8 or 1/2
Step-by-step explanation:
7/8-3/8= 4/8 or 1/2 because 4 is half of 8
Which equation can be used to solve for in the following diagram?
(8x - 20)°
3xº
Answer:
A. 3x° + (8x - 20)° = 90°Step-by-step explanation:
The two given angles are complementary and sum to 90°
3x° + (8x - 20)° = 90°Therefore correct choice is A.
Write the phrase as an expression.
the total of 6 and 10
An expression is:
Answer:
Answer:
The phrase 'The total of 6 and 10' can be written in an algebraic expression as:
The total of 6 and 10 = 6 + 10The expression can be further simplified such as:
6 + 10 = 16Step-by-step explanation:
Given
The phrase is:
'The total of 6 and 10'To determine
Write the phrase as an expression.
The 'total' means 'the sum' and 'the sum' is denoted by the symbol '+'Therefore,
In order to write the phrase 'The total of 6 and 10' in an algebraic expression, all we need is to add 6 and 10.
Thus,
The total of 6 and 10 = 6 + 10
Hence, the phrase 'The total of 6 and 10' can be written in an algebraic expression as:
The total of 6 and 10 = 6 + 10The expression can be further simplified such as:
6 + 10 = 16Answer:
that is wrong
Step-by-step explanation:
Find a solution to the linear equation y=−x+7 by filling in the boxes with a valid value of x and y.
Answer:
[tex](x,y) = (0,7)[/tex]
[tex](x,y) = (3,7)[/tex]
Step-by-step explanation:
The question and the attached image are different. However, the attached image answers the question y = -4 correctly.
So, I will solve for: [tex]y = -x + 7[/tex]
Given
[tex]y = -x + 7[/tex]
Required
Possible values of x and y
Let x = 0:
[tex]y = -x + 7[/tex]
[tex]y = -0 + 7[/tex]
[tex]y = 7[/tex]
So, we have:
[tex](x,y) = (0,7)[/tex]
Let y = 4
[tex]y = -x + 7[/tex]
[tex]4 = -x + 7[/tex]
Collect Like Terms
[tex]x = -4 + 7[/tex]
[tex]x =3[/tex]
So, we have:
[tex](x,y) = (3,7)[/tex]
So, all you need to do is: assume a value for either x or y, then solve for the other variable.
A coin is flipped and a number cube is rolled.Use a tree diagram to find the probability of getting heads and a number greater than 2?
For the coin: 2 possibilities, either head or tail. So probability of head is 1/2.
For the cube (assuming numbers are 1 to 6): 6 possibilities (1 2 3 4 5 6). We have 3 odd numbers, so probability of odd number is 3/6=1/2.
You want both head and an odd number, so you multiply the 2 probabilities: 1/2×1/2=1/4.
So the answer is 1/4.
You can use a tree to better understand probabilities.
Can anyone Help me !?.
Answer:
484
Step-by-step explanation:
22^2 is equal to 22*22 which is 484