Answer:
8x-2=-9+7x equals X=-7
Answer:
x = -7
Step-by-step explanation:
What’s the mathematical expression for “ three times x no less than 9”
Answer:
not simplified: 3x≤9
simplified: x≤3
how to make something a subject
Answer:
I dont understand the question?
Step-by-step explanation: your trying to pick a subject??
Help I need help with this question
Answer:
X = 208
Step-by-step explanation:
NEED HELP PLEASE WORTH 78 POINTS!!!
27. 1,3,5,15
28. 1,2,3,5,6,10,15,30
29. 1,2,3,6,9,18
30. 1,17
--------------------------------------
31. 30x30=900
32. 12x12x12x12= 20,736
33. 11x11x11= 1331
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9514 1404 393
Answer:
27. 15 = 1×15 = 3×5
28. 30 = 1×30 = 2×15 = 3×10 = 5×6
29. 18 = 1×18 = 2×9 = 3×6
30. 17 = 1×17
31. base: 30; power: 2; value: -900
32. base: 12; power: 4; value: 20,736
33. base: 11; power: 3; value: 1,331
Step-by-step explanation:
27-30: The factor pairs can be found by looking at the unique subsets of the set of prime factors. The product of the elements of each subset will be a divisor. The "empty" set can be considered to contain 1. When divisors are listed in numerical order, the factor pairs can be found by pairing factors from each end of the list, working toward the center. If the number is a perfect square, there will be an odd number of divisors, and the center number will be used twice
Examples:
18 = 2×3×3 (prime factorization).
Subsets of these factors are {}, {3}, {3}, {3,3}, {2}, {2,3}, {2,3}, {2,3,3}. Then the divisors are 1, 2, 3, 6, 9, 18. The factor pairs are 1×18, 2×9, 3×6.
25 = 5×5 (prime factorization).
Unique subsets are {}, {5}, {5,5}. Divisors are 1, 5, 25. Factor pairs are 1×25, 5×5.
__
The purpose of an exponent is to indicate repeated multiplication. That is, just as 2×3 means 2+2+2 (repeated addition), the use of an exponent means repeated multiplication: 2³ means 2×2×2.
This idea can be extended to give several rules of exponents--rules for multiplication, division, powers, and roots. All of these rules derive from the basic idea of repeated multiplication.
The number that is repeatedly multiplied is called the base. The exponent is called the power.
In plain text, the caret (^) symbol is used to signify an exponent. If an exponent is other than a single number or variable, it must be enclosed in parentheses, so that there is no confusion regarding what the exponent consists of. (This is an "order of operations" issue, since exponentiation must happen before any other operation.) In typeset math expressions, an exponent is rendered in superscript text.
31. -30^2 = -900 . . . base is 30, power is 2. The minus sign is not part of the base. Again, this interpretation is based on the "order of operations".
32. 12^4 = 20,736 . . . base is 12, power is 4.
33. 11^3 = 1,331 . . . base is 11, power is 3
What integer is equal to |-10| + |-20|
Please answer
Answer:
30
Step-by-step explanation:
The absolute value function always gives a positive value, that is
| - a | = | a | = a
Given
| - 10 | + | - 20 |
= 10 + 20
= 30
Answer:
|-10| + |-20| = 30
Step-by-step explanation:
Absolute Value
The absolute value of x, written |x| is a positive number that represents the distance from the origin and the number.
In practice, the absolute value is found writing the number without the negative sign, if present.
For example:
|-9| = 9
|76| = 76
|0| = 0
The given expression is
|-10| + |-20|
Calculate each absolute value separately:
|-10|=10
|-20|=20
Thus:
|-10| + |-20| = 10+20 = 30
|-10| + |-20| = 30
Given f(x) = -6(4 - x), what is the value of f(-0.6)?
A)-30
B) -27.6
C) -60
D) -24.6
Step-by-step explanation:
f(x) = -6(4-x) which f(-0.6)
therefore:
we multiple -6×4= -24 and -×- =+ this implies +6×x = 6x
we add:
-24 + 6x which we already know x is = -0.6
-24 + 6 (-0.6)
-24 + 3.6
= the big number always carry the sign
the answer is = -27.6
2 (t -3) ² - 72=0?
Math by extracting square roots
Answer:
2(t-3) ^2 = 72
(t - 3)^2 = 36
t - 3 = 6 or t - 3 =-6
t = 6+3 = 9. or t =-6 +3 = -3
t = 9 or -3
We have that
The Value of t is
t=9
From the question we are told
2 (t -3) ² - 72=0
In Answering the Question we must follow these few steps
Firstly we must make t the subject of the FormulaSecondly,We perform the necessary arithmeticFinally,The value of t will be gottenGenerally the derivation of t is mathematically given as
[tex](t-3)^2=\frac{72}{2}\\\\t-3=\sqrt{\frac{72}{2}}\\\\t-3=6\\\\t=9[/tex] [Firstly we must make t the subject of the Formula
Firstly we must make t the subject of the FormulaSecondly,We perform the necessary]
Therefore
The Value of t is
t=9 [Finally,The value of t will be gotten]
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A triangle has exactly three sides. Prove the conditional by proving the contrapositive. If a polygon has more than three sides, then it is not a triangle. Contrapositive: If _____, then _____. Since ______, the contrapositive is _____, the original statement must be _____.
Answer:
If a polygon is a triangle, then it has exactly three sides
Since as have been presented above, the contraposition is true, the original statement must be true
Step-by-step explanation:
The contrapositive statement; If a polygon has more than three sides, then it is not a triangle
We have that the definition of a triangle = A polygon with exactly three sides
Therefore;
A polygon with more than three sides is not a triangle and has (n - 1)/2×180 degrees interior angle, where n = The number of sides
Therefore, when n > 3, (n - 2)/2×180 > 180°
The sum of interior angles of a triangle = 180°
Therefore, the contrapositive statement, if a polygon has more than three sides, then it is not a triangle is true
Therefore, we have;
If a polygon is a triangle, then it has exactly three sides
Since as have been presented above, the contraposition is true, the original statement must be true
Solve for y 2x-5y=10
Answer:
y = 2/5x - 2
Step-by-step explanation:
Step 1: Write equation
2x - 5y = 10
Step 2: Solve for y
Subtract 2x on both sides: -5y = 10 - 2xDivide both sides by -5: y = -2 + 2/5xRewrite: y = 2/5x - 2Solve the equation f(x)= g(x) algebraically.
f (x)= In e2x+2
g(x)= 3x - 3
What is 1 and 3 5ths divided by 2 and one half
Write and graph an inequality for the given solution set {n∣n≥−2}
Answer:
Explanation:
An inequality is used to represent unequal expressions or numbers. An inequality with the solution set [tex]n \ge -2[/tex] is: [tex]2n - 6 \ge -10[/tex]
Given that:
[tex]n \ge -2[/tex] --- the solution
To generate an inequality with the above solution, we do the following:
Subtract 3 from both sides of the inequality
[tex]n - 3 \ge -2 - 3[/tex]
[tex]n - 3 \ge -5[/tex]
Several operations can be carried out. The most important thing to note is that, whatever operation is done on the right-hand side of the inequality must be done on the left-hand side.
We can also multiply both sides by 2
[tex]2 \times (n - 3 )\ge -5 \times 2[/tex]
[tex]2n - 6 \ge -10[/tex]
Hence, an inequality with the solution set [tex]n \ge -2[/tex] is:
[tex]2n - 6 \ge -10[/tex]
See attachment for graph
Read more about inequality at:
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how much is 3375.9 missing to reach 6567.66 , in scientific notation
Answer: 3.19176 * 10^3
Step-by-step explanation:
Step 1: Subtract 3,375.9 from 6,567.66 = 3191.76
Step 2: Convert 3191.76 to scientific notation
Note: The purpose of scientific notation is to make big numbers into small numbers by moving the decimal point and then showing how many decimal places you moved by using powers of ten.
Step 3: Move the decimal 3 places to the left, and multiply by 10^3.
3.19176 * 10^3
what is the equation of a like that goes through the point 5,-2 and has a slope of. 6/5
Answer:
y= 6/5x -8
Step-by-step explanation:
The slope-intercept form (basically the form for the equation of a line)
y=mx+b
m is the slope
x is the value you want to plug in, or the x term in a point (x, y)
we know so far,
y=6/5x + b
so to find the missing value let's plug in the x & y value from (5, -2) and use the given slope
-2 = 6/5(5) + b
6 / 5 x 5/1 or 6/5 times 5 is 30/5 or 6
so
-2 = 6 + b
subtract 6 from each side to isolate the b value or y-intercept ( the point on the graph that is on the y-axis)
-8 = b
SOMEONE HELP ME PLZ ASAP!!!!
A=22cm
B=21cm
C=23cm
Good luck
44 Points Please help me on this
Answer:
Yes.
Step-by-step explanation:
This is because on a protractor a 180 degree angle is just a line.
after taking a test, mias grade dropped from 85% to 81%
Answer:
I would say Jessica
Step-by-step explanation:
Because Mia's grade dropped by 4% and Jessica's grade increased by 5%
1% difference in the grades
What is the value of K? k=___
Answer:
I'm pretty sure the answer is 2
Step-by-step explanation:
Answer:
Step-by-step explanation:
In triangle LON, <O = 90°
According to Pythagoras' Theorem
(Hyp)² = (Base)² + (Perp)²
m² = 4² + 8²
m² = 16 + 64
m² = 80
Taking square roots on both sides
√m² = √80
m = 8.94
In triangle LMN, <N = 90°
According to Pythagoras' Theorem
(Hyp)² = (Base)² + (Perp)²
(8 + k)² = l² + 4²
2/3 of 1/2
What is the answer.
Answer:
1/3 or 0.33333333333_
Step-by-step explanation:
What are 2 examples of proportional relationships?
Answer:
A proportional relationship is states that they are the same. For example, 1/2 and 6/12 have a proportional relationship, which means they are the same.
Step-by-step explanation:
hope this helped ✨
Answer:
A proportional relationship is states that they are the same. For example, 1/2 and 6/12 have a proportional relationship, which means they are the same.
Step-by-step explanation:
If y varies directly as x and the constant variation is -2, which equation represents this relationship?
please answer by 11:59 10-5-2020
Answer:
y = -2xStep-by-step explanation:
If y varies directly with x, it is:
y = kxConstant is -2, it means k= -2
y = - 2xwhat is the following sum? 4(5rootx2y)+3(5rootx2y)
Answer: Choose which answer you think fits
Step-by-step explanation:
The roots are there to confuse you. They have the exact same numbers under the radical, so you can treat it like a variable and add 4 + 3 since theyre like terms.
[tex]7(5\sqrt{x2y} ) = 35\sqrt{x2y}[/tex]
If that's an x^2, bring the x out and keep the y inside the radical to get:
[tex]35x\sqrt{y}[/tex]
Consider the following Expression.
6x-9x-2=-2x-2
What is the value of x?
Answer:
The answer is X = 0
13 POINTS! EVALUATE AND SHOW ALL WORK
Answer:
0Step-by-step explanation:
Solving in steps
3| 4.5 - 2| - 5 |-1.5 -(- 3)| =3 |2.5| -5 |-1.5 + 3| =3*2.5 - 5|1.5| =7.5 - 5*1.5 =7.5 - 7.5=0Choose the best description for the real number 4 point 6 repeating . (4 points)
Question 2 options:
1)
Irrational, because it is a terminating decimal
2)
Irrational, because it is a repeating decimal
3)
Rational, because it is a terminating decimal
4)
Rational, because it is a repeating decimal
Answer:
4
Step-by-step explanation:
Irrational number are real numbers that do not end and cannot be written as a fraction.
4.66666...
can also be written as 4 2/3 therefore it is rational because it can be written as a fraction.
It is not a terminating decimal because it doesn't end(repeating).
i need help on the multi choice answer
What are the next three terms of the geometric sequence 32, -16, 8, …?
a.
2, 1, 1/2
c.
-8, 16, -32
b.
4, 2, 1
d.
-4, 2, -1
Answer:
B is your answeer
Step-by-step explanation:
GL hope i helped<333!!
Evaluate the expression:
3(a + b - 3) - 2(2a + b - 4) when a = -1 and b = 1
Answer:
1
Step-by-step explanation:
There are 14 girls and 21 boys in Mrs. Andrews’s gym class. To play a certain game, the students must form teams. Each team must have the same number of boys and girls. What is the greatest number of teams Mrs. Andrews can make if every student is on a team?
Answer:
7 teams of five with 2 girls and 3 boys
Jackie and Luke are working on a project for social studies.
They create a slide show with 250 slides. if they worked on it for 8 hours,
How many slide did they created per hour?
Answer:
31.25 slides per hour.
Step-by-step explanation:
250 slides ÷ 8 hours = 31.25 slides per hour
You're welcome!
Answer:
You are trying to find how many slides they did per hour so the answer to that would be 31.25
Step-by-step explanation:
250 ÷ 8 = 31.25