Answer:
36.
Step-by-step explanation:
6 plus 3 is 9 and 9 times 4 is 36, hope this helps.
1. 9x - 2 + 7 - X
Terms
Like Terms
Answer:
Hi I can help!!
Step-by-step explanation:
1. Collect like terms.
9x-X+(-2+7)9x−X+(−2+7)
2. Simplify.
9x-X+59x−X+5
3. Get the final answer 8x-9
A line with a slope of 3 passes through (2,5). Which choice is an equation of this line?
Answer:
y=3x-4
Step-by-step explanation:
a slope of 3 means that the equation will definitely start like this
y=3x +/- b
to find b, substitute the coordinates given, so
5=3 x 3 +/- b
5=9 +/- b
5-9=b
-4=b
so the equation would be
y=3x-4
slope for (1,-1) (-1,-2)
lol sorry
Answer:
m = 1/2
Step-by-step explanation:
Slope(m) = (y-y1)/(x-x1)
= (-1 - (-2))/(1 - (-1))
= (-1+2)/(1+1)
= 1/2
Two people enter a whispering gallery and want to know where they should stand so they can hear the other person's whisper. The gallery is 100 feet wide and the vertical distance from their head to the peak of the ceiling is 30 ft.
Answer:
The two people should stand 40 feet from the center so that they can hear each other whisper
Step-by-step explanation:
From the question
Width of the gallery = 100 feet
Width = 2a
a = Width/2
a = 100/2 = 50 feet
Height of the gallery = b = 30 feet
Hence, the distance is
d² = a² - b²
d = √a² - b²
d = √50² - 30²
d = √2500 - 900
d = √1600
d = 40 feet
Hence, the two people should stand 40 feet from the center so that they can hear each other whisper.
NEED HELP ASAP ! answers !
Answer:
92 degrees
Step-by-step explanation:
what is the solution for 2x-5=7
Answer:
x = 12
Step-by-step explanation:
Answer:
x=6
Step-by-step explanation:
1. Add 5 to both sides.
2x = 7 + 5
2. Simplify 7+5 to 12.
2x = 12
3. Divide both sides by 22.
x = 12/2
4. Simplify 12/2 to 6
x = 6
write an equation in slope intercept form that passes through the points (-4,3) and (0,2)
Answer:
[tex]y = -\frac{1}{4}x +2[/tex]
Step-by-step explanation:
Slope-intercept form: y = mx + b
Slope formula: [tex]\frac{y2-y1}{x2-x1}[/tex]
Given points: (-4, 3), (0, 2)
(0, 2) = (x1, y1)
(-4, 3) = (x2, y2)
To write the equation in slope-intercept form, we need to find the slope(m) and the y-intercept(b) of the equation.
First, let's find the slope. To do this, input the given points into the formula used to find slope:
[tex]\frac{3-2}{-4-0}[/tex]
Simplify:
3 - 2 = 1
-4 - 0 = -4
[tex]\frac{1}{-4}= -\frac{1}{4}[/tex]
The slope is [tex]-\frac{1}{4}[/tex].
To find the y-intercept, input the slope and one of the given points(in this example I'll use point (0, 2)) into the equation and solve for b:
[tex]2 = -\frac{1}{4} (0)+b[/tex]
2 = 0 + b
2 = b
The y-intercept is 2.
Now that we know the slope and the y-intercept, we can write the equation:
[tex]y = -\frac{1}{4}x +2[/tex]
Use a quick picture to model 0.62 -0.18. Then write in your answer.
Answer:
0.44
Step-by-step explanation:
Subtraction is just like addition. How much do you need to make 0.18 0.62? then you have your answer. This is just a strategy.
Which of the following is a rational number?
Answer:
B.)
Step-by-step explanation:
A rational number is a number with no repeating decimals or decimals that go on “forever” like pi. An expample of a rational number is 2 where 2.3333333... is not a rational number. Pi isn’t a rational number either since forth there is no known end to that.
So, when solved:
A.) = 1.58113883... (irrational)
B.) = -8 (rational)
C.) = 8.94427191... (irrational)
D.) = 3.794733192... (irrational)
I hope you see the pattern. Hope this helps!
If 3x−y=12, what is the value of 8^x/2^y?
Answer:
3x + 3x + 3x = 3x . but as 1 x + 1x equals 7/8, but 7 x 4 - 3 x 6 = 100002.0389487384, where as dim + dim = ddiimm
Step-by-step explanation:
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey
was done on 23 students, and the distribution of total study hours per week is bell-shaped with a mean of
14 hours and a standard deviation of 2.9 hours.
Use the Empirical Rule to answer the following questions.
a) 68% of the students spend between
hours and
hours on Statistics each week.
b) 95% of the students spend between
hours and
hours on Statistics each week.
C) 99.7% of the students spend between
hours and
hours on Statistics each week.
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Given f(x)= -9x^2 - x - 7 and g(x)= 8x² + 3x – 3, find (f-g)(x).
Trey has answered 15 emails. This is 20% of emails he must answer how many emails does he needs to answer
Answer:
60
Step-by-step explanation:
15 times 5 is 75 75 minus 15 is 60 so the answer is 60
Answer:
Step-by-step explanation:
answer this please my teacher isnt available
Answer:The length of one side would be 11
Step-by-step explanation:
Answer:
11 cm
Step-by-step explanation:
The area (A) of a square is calculated as
A = s² ( where s is the side length )
Here A = 121 , then
s² = 121 ( take the square root of both sides )
s = [tex]\sqrt{121}[/tex] = 11
Name the type of factoring (DoPS, GCF, Trinomials, factoring by parts, factoring with a leading coefficient)
Answer:
1) (x - 9)(x + 2) ==> trinomials
2) (s + z) (3m - 2n) ==> factorising by parts
3) (x + 2)(5x + 3) ==> factorising with a leading coefficient
4) 9y²(3y² - 2) ==> GCF
5) (4m - 12)(4m + 12) ==> DoPS
Step-by-step explanation:
1). Find multiples of -18 that add up to -7
Multiples of -18 : (only one number can be negative, because positive*negative = negative)
1, 18 or 3, 6 or 2, 9
Only one pair adds up to -7 which is -9 + 2
Hence ==> (x - 9)(x + 2)
2). Find the common things between the terms and factorise it out
3m(s + z) - 2n(s + z)
Since the terms inside the brackets are the same, you simplify it to:
(s + z) (3m - 2n)
3). Multiply the first coefficient with the last coefficient: 5(6) = 30
Find two numbers that multiply to 30 and add up to the middle coefficient -13.
Multiples of 30 are: 1, 30 or 2, 15 or 3, 10 or 5,6, but only one pair would add to -13 and that is 3 and 10
So the next step is to write it in this form: 5x² + 10x + 3x + 6
Factorise: 5x(x + 2) + 3(x + 2)
(x + 2)(5x + 3)
4). Find the greatest common factor within 27y⁴ and 18y², which is 9y²
9y²(3y² - 2)
5). Square root each number: √16 = 4 and √144 = 12
(4m - 12)(4m + 12)
You are baking a cake, and the recipe calls for 3/8 of a cup of flour and 1/2 of a cup of sugar. What is the total amount of flour and sugar, as a reduced fraction?
Answer:
[tex]\frac{7}{8}[/tex]
Step-by-step explanation:
To find the total amount of flour and sugar, you have to find a common denominator for the two fractions and then add them together.
[tex]\frac{1}{2}[/tex] multiplied by 4 equals [tex]\frac{4}{8}[/tex].
Now that the fractions both have a common denominator of 8, we can add them together:
[tex]\frac{3}{8}[/tex] + [tex]\frac{4}{8}[/tex] = [tex]\frac{7}{8}[/tex]
The total amount of flour and sugar is [tex]\frac{7}{8}[/tex]
Hope this helps :)
Answer:
7/8
Step-by-step explanation:
convert 6,700 miligrams to grams
Answer:
6.7
Step-by-step explanation:
Which of the following is a vertical stretch of the
parent function f(x)=x^2
y=4x^2
y=1/4+x^2
y=(1/4x)^2
y = x^2-4
The expression "[tex]y = 4x^2[/tex]" is a vertical stretch of the parent function f(x) = [tex]x^2[/tex].
What is the functions?
Functions are mathematical relations that describe the relationship between inputs (often called "input values" or "arguments") and outputs (often called "function values" or "results").
The vertical stretch of the parent function f(x) =[tex]x^2 \\[/tex] can be identified by the coefficient multiplied with the squared term.
Among the given options:
y = [tex]4x^2[/tex] - This is a vertical stretch of the parent function f(x) = [tex]x^2[/tex] by a factor of 4, which means the graph of the function is stretched vertically by a factor of 4.y =[tex]1/4 + x^2[/tex] - This is a vertical shift and addition of a constant to the parent function f(x) = [tex]x^2,[/tex] but not a vertical stretch.y = [tex](1/4x)^2[/tex] - This is not a vertical stretch of the parent function f(x) = [tex]x^2[/tex]. It involves a reciprocal and squaring operation on x, but not a vertical stretch.y = [tex]x^2 - 4[/tex] - This is a vertical shift and subtraction of a constant from the parent function f(x) = [tex]x^2[/tex], but not a vertical stretch.Hence, the correct option that represents a vertical stretch of the parent function f(x) =[tex]x^2[/tex] is y = [tex]4x^2[/tex] (Option 1).
To learn more about functions, Visit
https://brainly.com/question/11624077
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What are the angle names given in the picture?
Plzzzz anyone answer I post question but no one answers them but plz anyone answer this time it’s a project and it’s due date is today plz helppp
Answer:
tbh there are quite a lot of possibilities
I'll just name the properties but not show which angle applies to it cos that's too time consuming
Step-by-step explanation:
vertically opposite angles
interior / exterior alternate angles
corresponding angles
angles on a straight line are supplementary
Solve for x:3x+4=9x+3
Answer:
Step-by-step explanation:
3x+4=9x+3 subtract 3 each side
3x+1=9x subtract 3x
1=6x divide by 6
x= 1/6
What is -3/4 + 2 3/4
line a has a slope of -4/3 and line b has a slope of -3/4 are both lines perpendicular.
Answer:
No they are not perpendicular.
Step-by-step explanation:
No they are not because they are both line b is still negative.
In order for them to be perpendicular is if the slopes were like this....
-4/3x and 3/4x
or
4/3x and -3/4x
They have to be complete opposites.
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1/2(6x - 3) - X=2x 1
Answer: X= -3 = 2
Step-by-step explanation:
In ΔABC, m ∠ A = ( 3 x + 1 ) ∘ m∠A=(3x+1) ∘ , m ∠ B = ( x + 14 ) ∘ m∠B=(x+14) ∘ , and m ∠ C = ( 4 x + 5 ) ∘ m∠C=(4x+5) ∘ . What is the value of x ? x?
Answer:
x = 20
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 given angles and equate to 180
3x + 1 + x + 14 + 4x + 5 = 180, that is
8x + 20 = 180 ( subtract 20 from both sides )
8x = 160 ( divide both sides by 8 )
x = 20
Which ratio is less than 7/15
A. 9/15
B. 2/5
C. 3/5
D. 24/45
Answer:
B
Step-by-step explanation:
2/5 + 2/5 +2/5 = 6/15 < 7/15
does anyone know the answerrr ?
Answer:
120
Step-by-step explanation:
Can someone solve this for me
Answer:
A is correct pls give likes and brainliest (I actually checked the work sheet for answer key)
The temperature in Alaska dropped –50.16°C in 5.7 hours. How much did the temperature drop per hour?
Answer:
-8.8
Step-by-step explanation:
hope this helps!! :)
Pls answer this geometry question 100% smart people struggle
Answer:
This is how you do it. Find the radius of it. There is ur answer
Step-by-step explanation:
In your own words, describe the steps you take to round a decimal.
Answer:
if its .5 round up if its .4 or lower round down
Step-by-step explanation:
Answer:
Step-by-step explanation:
i look at the number to the very decimal and then if it is 5 or higher i round up if it is 4 or lower i round down then leave out the rest of the numbers unless it tells you to round to the tenths, hundreds, or thousands place and so on.
