A model house has a scale of 1cm:3m. If the real house is 21m wide, how wide is the model house?
Answers
Answer:
1/2
Step-by-step explanation:
Related Questions
6. Which of the following is equivalent to the expression shown?
(x - 5)(x + 5)
(A) x2 – 10x - 25
(C) x2 – 25
x2 - 10x + 25
(D) x2 + 25
(x–52) (x+5)
x²-524
X2-10
I’m stuck on this help anyone ? :(
Answers
Answer:
its x^2 -25
Step-by-step explanation:
simply we know,
a^2-b^2=(a-b)(a+b)
Amber is solving the inequality X+61- 12 < 13 by graphing. Which equations should Amber graph?
O Y1 = +6 Y2 - 25
O y1= x+6y2 = 25
O Y1 = X+61.72 = 13
O Y1 = X+6.82 = 13
Answers
Therefore, Amber should graph the equation Y1 = X+61.
What is inequality?An inequality is a mathematical statement that compares two values or expressions using one of the inequality symbols: < (less than), > (greater than), ≤ (less than or equal to), ≥ (greater than or equal to), or ≠ (not equal to). Inequalities are used to describe a range of possible values for a variable, rather than a single value. Inequalities can be solved by performing operations on both sides of the inequality symbol, just like equations. However, there are some important differences between solving equations and solving inequalities. For example, if we multiply or divide both sides of an inequality by a negative number, we need to reverse the direction of the inequality symbol.
Here,
To graph the inequality X+61- 12 < 13, we need to rearrange it to the form Y < MX + B, where Y is on the left-hand side and X is on the right-hand side. This gives:
Y < -X + 64
Now we can graph the line Y = -X + 64 and shade the region below it, since we want Y to be less than this expression.
Out of the equations given, Y1 = X+61 is the closest to the inequality we are trying to graph. However, the coefficients of X and Y are reversed, so we need to rearrange it to the desired form:
Y - X < 61
Y < X + 61
To know more about inequality,
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The linear function g is defined by g(x) = 4x.
a. Determine g(3).
b. Determine g(2).
c. Determine g(3) - g(2)
Answers
Answer:
the answer is D.
Step-by-step explanation:
well, the y-intercept for f(x) is at
as you can see from the slope-intercept form is at 4, and it has an slope of 2/3.
for g(x), well an y-intercept is when x = 0, what is it from that table? well, is at 0,3, so when x = 0, y = 3, so no dice on that one.
c)
whenever an x-intercept occurs, y = 0, for f(x) that's at
what about the x-intercept for g(x)? well, let's check, when is y = 0? aha! at -9, 0, so when y = 0, x = -9, so no dice on that one either.
d)
well, what is the slope of g(x) anyway? well, let's pick two points off the table to get it hmmm the first two let's use,
and from a), using the slope-intercept form, we know f(x) has a slope of 2/3.
well, 2/3 is larger than 1/3, so no dice.
b)
well, you already know.
NO LINKS OR ELSE YOU'LL BE REPORTED! Only answer if you're very good at Math.No guessing please.
Simplify: [3(2a)^3/2]^2
A: 34^4√2a^9
B: 72a^3
C: 216a^3
D: 24a^3
Answers
==================================================
Explanation:
We have something of the form [M*N]^2 where M = 3 and N = (2a)^(3/2)
Squaring the M leads to M^2 = 3^2 = 9
Squaring the N leads to N^2 = (2a)^3 = 8a^3
Notice how the fractional exponent goes away. The denominator '2' cancels with the '2' from the squaring operation
In other words, the rule is [tex]\left(x^{1/2}\right)^2 = x[/tex] where x is nonnegative.
A more general form of the rule is [tex]\left(x^{p/2}\right)^2 = x^p[/tex]
-------------
After squaring M and N, we then get to
[MN]^2 = M^2*N^2 = 9*8a^3 = 72a^3
So that shows why choice B is the answer.
What is the distance between (-5, -6) and (-3, -8)?
Answers
A container has 3 apple juice boxes, 4 grape juice boxes and 5 orange juice boxes. Alex picks one juice box, drinks it and then picks another juice box. What is the probability that Alex picks grape juice and then orange juice?
a. 5/33
b. 5/44
c. 5/36
d. 1/11
Answers
Answer:
a) 5/33
Step-by-step explanation:
P(G then O) = 4/12 x 5/11
this is 1/3 x 5/11 which equals 5/33
Plz help solve this thanks
Answers
Answer:
y= -3/2
Step-by-step explanation:
........................
Multiply x^2+2x+3 times 4x^2-2x+1
Answers
Answer:
4x^4 + 6x^3 + 9x^2 − 4x + 3
Step-by-step explanation:
Simplify the expression. 4x^4 + 6x^3 + 9x^2 − 4x + 3
Step-by-step explanation:
Answer:
answer for this solution is 4x^4+6x^3+9x^2-4x+3
Select the correct answer. What is this expression in simplified form?(6v2)(-3v5) options: A. -90 B.-18v10 C.-18v7 D. 3v7
Answers
Answer:
[tex]-18\sqrt{10}[/tex]
Step-by-step explanation:
[tex](6\sqrt{2})(-3\sqrt{5} )[/tex]
[tex]6\sqrt{2} * -3\sqrt{5}[/tex]
[tex](6*-3)\sqrt{2*5}[/tex]
[tex]-18\sqrt{10}[/tex]
brainlest! to first one pls help mehh
Answers
Answer:
A
Step-by-step explanation:
Answer:
option a and b
Step-by-step explanation:
peanuts=1/4 cup ratio=1:4
raisins=1/2 cup ratio=1:2
chocolate chips=3/4 cup ration=3:4
granola =1 cup ration=1:1
a. ratio of cop of rasins to cup of peanuts=2:1 or 2/1
1/2 = 1/4=2/1
do cross multiplication
4*1=2*1=2/1
4/2=2/
2/1=2/1
2:1=2:1 this is satisfied
b.ratio of cup of granola to cup of peanuts=1:4 or 1/4
1/1=1/4
do crss multiplication
1*1/4*1=1/4
1/4=1/4
1:4=1:4 this is satisfied as both are equal
c.the ratio of cup of chocolate chips to cup of raisins=3:1 or 3/1
3/4=1/2
do cross multiplication
3*2=4*1=3/1
6/4=3/1
6:4=3:1 this is not satisfied as they are different.
d.the ratio of cup of raisins to cup of granola=1:3 or 1/3
1/2=1/1
do cross multiplication
1*1=2*1=1/3
1/2=1/3
1:2=1:3 this is not satisfied as they are different.
e. the ratio of cup of granola to cup of chocolate chips =4:3 or 4/3
1/1=3/4
do cross multiplication
3*1=4*1=4/3
3/4=4/3
3:4=4:3 this is not satisfied as they are not equal
therefore ur answer is option a and b.
Please help, im stuck.
Answers
Answer:
4x^2 + 12x + 9
Step-by-step explanation:
(2x + 3)^2
it is in the form of (a + b)^2
(a + b)^2 = a^2 + 2*a*b + b^2
(2x + 3)^2
(2x)^2 + 2*2x*3 + (3)^2
4x^2 + 12x + 9
In the diagram of circle O shown to the right, PA and PB are tangent to circle O at points A and B, respectively. If mACB 266, then mAPB
Answers
Answer: 86 degrees
Step-by-step explanation:
Which shows a graph of a linear equation in standard form Ax + By = C, where A = 0, B is positive, and C is negative? A coordinate plane with a vertical line passing through (1, negative 4), (1, 0) and (1, 4). A coordinate plane with a vertical line passing through (negative 2, negative 4), (negative 2, 0) and (negative 2, 4). A coordinate plane with a horizontal line passing through (negative 4, 4), (0, 4) and (negative 4, 4). A coordinate plane with a horizontal line passing through (negative 4, negative 3), (0, negative 3) and (4, negative 3).
Answers
Answer:
A coordinate plane with a horizontal line passing through (negative 4, negative 3), (0, negative 3) and (4, negative 3).
Step-by-step explanation:
Ax + By = C, where A = 0, B is positive, and C is negative
By= C or y= C/B which is negative
Since A is zero and C is negative, the line is parallel to x- axis and has negative value for y, so it is a horizontal line below zero
---------------
A coordinate plane with a vertical line passing through (1, negative 4), (1, 0) and (1, 4).
no, the line is horizontal
A coordinate plane with a vertical line passing through (negative 2, negative 4), (negative 2, 0) and (negative 2, 4).
no, the line is horizontal
A coordinate plane with a horizontal line passing through (negative 4, 4), (0, 4) and (negative 4, 4).
no, the y-values should be negative
A coordinate plane with a horizontal line passing through (negative 4, negative 3), (0, negative 3) and (4, negative 3).
yes, this is horizontal line below zero
Answer:
D
Step-by-step explanation:
15.
.
X
Income Earned
Which statement below accurately represents the graph?
Click on the picture to enlarge
Dollars Earned
900
BOO
700
600
500
400
300
200
100
0 1 2 3 4 5 6 7 8 9
Hours Worked
a) $100 is earned for each hour worked
b) $200 earned for every 2 hours workedis
the unit rate
+
c) $500 is earned for every 8 hours worked 0 d) $300 is earned after working 4 hours
Answers
Answer:
C.
Step-by-step explanation:
❌Option A is incorrect
Rationale: from the graph, 1 hr on the x-axis doesn't correspond to $100 on the y-axis
❌Option B is incorrect
Rationale: from the graph, 2 hrs on the x-axis doesn't correspond to $200 on the y-axis. It can't also be the unit rate because unit rate would be the amount of dollars per 1 hr.
✅Option C is CORRECT
Rationale: from the graph, 8 hrs on the x-axis corresponds to $500 on the y-axis
❌Option D is incorrect
Rationale: from the graph, 4 hr on the x-axis doesn't correspond to $300 on the y-axis
How to solve and what is the answer for this question
Answers
Answer:
O DC = 65 and DE = 33.5
Step-by-step explanation:
DC is already given by AB
so DC is 65
DE would be BD split
DE is 33.5
Answer: O DC = 65 and DE = 33.5
1 Officials estimate the probability that England will host the World Cup in 2018 is 58%. If the estimate is correct, what is the probability that England will not host the World Cup?
2 A weather forecast predicts the probability that it will snow the
following day is 23.
What is the probability that it will not snow the following day?
3 There is a 0.7 chance a tennis player will win her next match.
The probability that she will lose her next match is 0.2.
What is the probability the tennis player will draw her next match?
4 At a college, 160 students study Psychology.
120 of the students are female.
What is the probability a Psychology student chosen at random
will be female?
6 A train company calculates that the probability that a train will break down on any one day is 0.012.
On one particular day, the train company has 650 trains running.
How many trains does the train company estimate will break down that day?
Answers
Answer:
42%1/231.14. 3/4
Step-by-step explanation:
100%_58%=42%The pentagon shown could be reflected over which line to be carried onto itself?
Answers
Answer:
on the x axis because it is reflected there
Solve the system of equations.
y=8x-6
y=5x+9
Answers
Answer:
x= 5 , y = 34
Step-by-step explanation:
8x-6=5x+9
3x-6=9
3x=15
x=5
-
8(x5) - 6 =
34
25(x5) +9 =
34
Answer:
x = 5 and y = 34
Step-by-step explanation:
I used substitution method and did this ;
8x - 6 = 5x + 9 .....put like terms together
8x - 5x = 9 + 6
3x = 15
x = 5
y = 8 (5) - 6
y = 40 - 6
y = 34
PLEASE HELP!!!
WILL MARK BRAINLIEST!!!
If A=28, then the measure of arc BA is_____
Answers
Answer:
124
Step-by-step explanation:
Have a nice day :)
Arc AC is 180º, arc BC is 56º:
[tex]180+56 +\arc{BA} = 360\implies BA = 124[/tex]
Write image as a complex number. Question 6 options: A) 3 + i B) 3 – i C) –3 + i D) –3 – i
Answers
Answer:
that's right B) 3 - √3i
Step-by-step explanation:
(12 - √-48) / 4 =
12/4 - √-48 /4
= 3 - √(-48/16)
= 3 - √-3
= 3 - √ 3i
[tex]\\ \rm\Rrightarrow \dfrac{12-\sqrt{-48}}{4}[/tex]
[tex]\\ \rm\Rrightarrow \dfrac{12}{4}-\dfrac{\sqrt{48}i}{4}[/tex]
[tex]\\ \rm\Rrightarrow 3-4\sqrt{3}i/4[/tex]
[tex]\\ \rm\Rrightarrow 3-\sqrt{3}i[/tex]
What is the MEDIAN or Q2 of the data set: 24. 25. 29. 30. 31. 31. 32. 34. 34 ?
Answers
Answer:
n=9
Step-by-step explanation:
median =n +1/2
=9+1/2
=10/2
=5
5 th term is 31
Find the measure for angle b
Answers
Which of the following is not a property of a rectangle?
O A) All sides are congruent.
B) Diagonals bisect each other.
C) All angles are congruent.
D) Diagonals are congruent.
Answers
Answer:
A
Step-by-step explanation:
Congruent means equal and not all the sides of a rectangle are equal
Which statement is true about the function shown in the graph?
Answers
Answer:
A
Step-by-step explanation:
The function that is shown in the graph is strictly decreasing
What is a function?"A function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function."
The given function has a value of (- 5) at a certain point.
After that the function is decreased to a value of (- 10).
Therefore, we can conclude that the function is strictly decreasing.
Learn more about a function here:
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Barbara sales ice teas for $1.49 per bottle and water for $1.25 per bottle she wrote an equation to find out the number of bottles she needs to sell to earn $100
Answers
Answer:
I dont know
Step-by-step explanation:
i think its 1.34
How to solve and answer to the question
Answers
Answer:
7
Step-by-step explanation:
AB//CD (Opposite sides of parallelogram are parallel)
Angle A + Angle B = 180 (Sum of interior angles=180)
138 + 7x - 7 = 180
7x - 7 = 180 - 138
7x = 42 + 7
7x = 49
x = 49/7
x = 7
What is the value of x? Also show work pls
Answers
Answer:
x = 34
Step-by-step explanation:
The angles are corresponding angles and corresponding angles are equal if the lines parallel
2x+3 = 71
Subtract 3 from each side
2x+3-3 = 71-3
2x = 68
Divide by 2
2x/2 = 68/2
x = 34
Type the correct answer in each box.
Find the solution for this system of equations.
2x + 4y = 8
x = 3y − 6
Answers
AnswerY=2
Answer:
X=0
Y=2
Step-by-step explanation:
Just finished and i got it right
Find the measure of the numbered angles
Answers
Answer:
Step-by-step explanation:
∡1 = 180-30-90 = 60°, because sum of all interior angles of a triangle is 180°
∡2 =30°, because vertical angles are congruent
∡3 =180-70-30 = 80°, because sum of all interior angles of a triangle is 180°
Help please need ASAP
Answers
Answer:
Step-by-step explanat
126
612
126
