[tex](\stackrel{x_1}{4}~,~\stackrel{y_1}{-2})\qquad (\stackrel{x_2}{-2}~,~\stackrel{y_2}{4}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{4}-\stackrel{y1}{(-2)}}}{\underset{run} {\underset{x_2}{-2}-\underset{x_1}{4}}}\implies \cfrac{4+2}{-6}\implies \cfrac{6}{-6}\implies -1[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-2)}=\stackrel{m}{-1}(x-\stackrel{x_1}{4}) \\\\\\ y+2=-x+4\implies y=-x+2[/tex]
4
3
С
2
1
In the similarity
transformation of AABC
to ADEF, AABC was dilated by
a scale factor of [?], reflected
across the [ ], and moved
through the translation [ ].
B.
A
-7
-6
-5
-4
-2
-1 0
1
2
3
+
E
D
-2
-3
F
A. 2
B. 1/2
C. 3
D. 1/3
Answer: A
Step-by-step explanation:
Since DE=4 and AB=2, we know the scale factor of the dilation was 4/2 = 2.
Find the probability of a couple having at least one boy when a couple has three children
Answer:
7/8
Step-by-step explanation:
assuming the probability of getting a boy and girl is 50 50,
(1/2)^3=1/8
1-1/8=7/8
How many solutions does the nonlinear system of equations graphed below
have?
A. Two
B. Zero
C. One
D. Four
The solutions of a system of equations is also the intersection of the two lines. In this case the red parabola and the blue linear equation intersects at One point and there fore the answer is C.) One
I hope it helped, if you need more explanation just comment and I will try to explain better!
2 When you multiply a a number by 7 and add 8 to the answer, you get 50. What is the number?
Answer:6
Step-by-step explanation:
the correct answer would be 6. Step-by-step explanation: when 7 is multiplied by 6 it gives 42 ,then we have to add 8 to the product and it gives 50
please help with this
Answer:
1. 120[tex]m^{2}[/tex]
2. 192[tex]ft^{2}[/tex]
3. 48[tex]cm^{2}[/tex]
Step-by-step explanation:
First triangle:
1. Find out the height
[tex]h^{2} +8^{2} =17^{2}[/tex]
[tex]h^2+64=289[/tex]
-64 -64
[tex]h^2=225[/tex]
h=15
2. Find the area
A=1/2 x 16 x 15
A=120[tex]m^{2}[/tex]
Second triangle:
1. Find out the height
[tex]h^2+16^{2} =20^{2}[/tex]
[tex]h^2+256=400[/tex]
-256 -256
[tex]h^{2} =144[/tex]
h=12
2. Find the area
A=1/2 x 32 x 12
A=192[tex]ft^{2}[/tex]
Third triangle:
1. Find out the height
[tex]h^2+6^2=10^{2}[/tex]
[tex]h^2+36=100\\[/tex]
-36 -36
[tex]h^2=64[/tex]
h=8
2. Find the area
A=1/2 x 12 x 8
A=48[tex]cm^{2}[/tex]
Type the single exponent that would appear on the 7: *
7^5 (exponent 5) x 7^6 (exponent 6) x 7^2 (exponent 2)
7^5 x 7^6 x 7^2
Do I add the exponent or multiply?
You add the exponent. You never multiply it.
Hope this helps!
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~~~PicklePoppers~~~
Pls help me and thanks rounding
Answer:
Step-by-step explanation:
1399 rounds to 1400 so A is not the answer
1449 rounds to 1400 so B is not the answer
1589 rounds to 1600 so D is not the answer
The hundreds place is second from the left. Third from the left determines what happens to second from the left. 5 and over round up. Less than 5 just use the first 2 digits left and 2 zeros.
The answer is C
1457 rounds to 1500
1547 rounds to 1500
3.
What is the value of the expression below when a = 3 and b = 5?
8a^2– 6b + 10
Answer: 52
Step-by-step explanation:
We can plug in the values for a and b.
= 8*3^2 - 6*5 + 10
= 72 - 30 + 10
= 42 + 10
= 52
Answer:
52
Step-by-step explanation:
Start by substituting the given values into the expression:
[tex]8a^2-6b+10\\8(3^2)-6(5)+10\\\text{Solve the expression}\\8(9)-30+10\\72-30+10\\42+10\\52[/tex]
Remember Order of Operations:
Parentheses
Exponents
Multiplication/Division (Whichever comes first)
Addition/Subtraction (Whichever comes first)
What is the surface area?
32 cm
11 cm
15 cm
Answer:
(rectangular prism) Opposite sides are equal;
Area of bottom base:-
11 x 15 = 165
Above base, (165 x 2) = 330
Area of front:-
15 x 32 = 480
Area of back, (480 x 2) = 960
Area of left side:-
11 x 32 = 352
Area of right side, (352 x 2 ) = 704
Add the sums of all the areas;
330 + 960 + 704 = 1,994 square cm
ABC is a straight line where BC = 3AB. OA = a, AB = b Express OC in terms of a and b.
What is the missing numbers in the synthetic division problem below?
Answer:
A. 9
Explanation:
2×4=8 and 8+1=9 so that's it.
There are 90 kids in the band. 20% of the kids own their own instruments, and the rest rent them.How many kids own their own instruments?
Answer:
18 kids
Step-by-step explanation:
because you multiply 0.2 by 90 and it equals 18
An employee works as a teacher at an online school making $38,900 per year. However, the school is hiring a principal at a salary of $59,500 per year.
The employee went back to school to become a principal.
How much more money could the employee make working as a principal instead of a teacher over 5 years?
Enter your answer in the box
Answer:
$103,000
Step-by-step explanation:
teacher : 38,900 x 5 = 194,500
principal : 59,500 x 5 = 297,500
$297,500 - $194,500 = $103,000 more
Madison is buying a laptop for $586. He paid for the laptop
using four $100 bills, fifteen $10 bills and forty-six $1 bills. How
much did Madison pay?
x/3 = 2,how to calculate x?
please help me
Answer:
[tex]\displaystyle{ \frac{x}{3} = 2}[/tex]
[tex]x = 2 \times 3[/tex]
[tex]x = 6[/tex]
Let's check:-[tex]\displaystyle{ \frac{x}{3} = 2 }[/tex]
[tex]\displaystyle{ \frac{6}{3} = 2 } [/tex]
[tex] = > 2 = 2[/tex]
-7 < 3x + 2 < 5.
Solve for x
Answer:
-3 < x < 1, This is the domain
Hank is painting houses this summer. He can paint 7 houses in 5 weeks. At this rate, how many houses did he paint in 18 weeks?
[tex]\begin{array}{ccll} houses&weeks\\ \cline{1-2} 7&5\\ x&18 \end{array}\implies \cfrac{7}{x}=\cfrac{5}{18}\implies 126=5x \\\\\\ \cfrac{126}{5}=x\implies 25\frac{1}{5}=x[/tex]
Repost of the last question.. Sorry it wasn't full.
someobe please help me here
Answer:
[tex]y < -\frac{4}{5} x+4[/tex]
Step-by-step explanation:
To graph the equation, draw the line [tex]y = -\frac{4}{5} x+4[/tex] and shade in the lower left part of the graph under the line to illustrate the inequality
Then pick two points to test
Tony needs to buy hotdogs and hotdog buns for his cookout
Answer:
then what happened next so I can answer your questions
Answer:
Do you have any more information on this question so we can answer it for you?
The length of the sides of a polygon are in the ratio of 3: 4: 2: 5. If the perimeter is 84 cm, find the N length of the shortest side
Answer:
12 cm
Step-by-step explanation:
First, divide the perimeter by the sum of ratios.
=> 84 / (3 + 4 + 2 + 5)
=> 84 / 14
=> 6
Shortest side
= 2x
= 2(6)
= 12 cm
Which equation has the same solution as x^2 - 6x - 14 = 0?
A (x + 3)^2 = 23
B (x - 3)^2 = 23
C(x + 3)^2 = 5
D (x-3)^2 = 5
Answer: B
Step-by-step explanation:
[tex]x^{2}-6x-14=(x-3)^{2}-14-9=(x-3)^{2}-23[/tex]
evauluate the equation r/15 = (-3)
A. r=45
B. r = 18
C. r = -18
D. r = -45
Answer:
The choice D. r= - 45
Step-by-step explanation:
[tex] \frac{r}{15} = ( - 3) \\ \\ r = ( - 3) \times 15 \\ \\ r = - 45[/tex]
What’s the correct answer for this question?
Answer:
Absolute change: $1,700
Relative change: 7.6577%
Step-by-step explanation:
Absolute change: $22,200 - $20,500 = $1,700
Relative change: (100 × $1,700) : $22,200 ≈ 7.6577%
(57x2:3)+32x450-[39-(4+2):2[+8=
Answer:
57×2/3+32×450-[39-4+2]/2+8
57×2/3+32×450-(39-6/2)+8
57×2/3+32×450-36+8
57×2/3+14400-28
57×2/3+14372
38+14372
14410
what are the zeros of f(x)=x^2+2x-80
Answer:
The zeros are 8 and -10, all u have to do is substitute x for those values, factor it, or graph it.
Step-by-step explanation:
The sum of two numbers is 16. One number is 2 less than the other. Find the numbers
Answer:
9+7=16
Step-by-step explanation:
For any real number c, sqrt c^2 =
A. I
B. ?
C. c
D. 1
Answer:
option A. |c| is the answer.
because sqrt of any number is always positive. that's why we add the modulas symbol around the interger.
1. what is the y-intercept of this line?
2. what is the slope of this line?
3. what is the equation for this line?
Step-by-step explanation:
1. The y-intercept is the value for y when x = 0.
When x = 0, y equals 7.
Represented as:
(0, 7)
2. How to find the Slope?
Find 2 points on the graph then use the slope formula.
[tex] \frac{y2}{x2} - \frac{y1}{x1} = m[/tex]
m = slope
2 points:
(0, 7)
(2, 3)
Substitute the points into the formula:
[tex] \frac{3}{2} - \frac{7}{0} = m[/tex]
Subtract:
[tex] \frac{ - 4}{2} = m[/tex]
[tex] \frac{ - 4}{2} = m[/tex]Simplify:
[tex] \frac{ - 4 \div 2}{2 \div 2} = - \frac{2}{1} [/tex]
The slope is -2.
Forming an equation:
Use the slope-intercept format.
[tex]y = mx + b[/tex]
m = slope
b = y-intercept
Substitute 7 for b, and -2 for m.
[tex]y = - 2x + 7[/tex]
Solve the follow inequality. ∣3x−4∣≥8
Hello.
Let's solve the absolute value inequality.
In order to do that, let's imagine that |3x-4| is positive.
Since the absolute value of |3x-4| is 3x-4, we write 3x-4 and solve:
[tex]\mathrm{3x-4\geq 8}[/tex]
Now, move -4 to the right, using the opposite operation:
[tex]\mathrm{3x\geq 8+4}[/tex]
Add:
[tex]\mathrm{3x\geq 12}[/tex]
Divide both sides by 3:
[tex]\mathrm{x\geq 4}[/tex]
However, this is only 1 solution.
Let's imagine that |3x-4| is a negative number.
So, the inequality looks like so:
[tex]\mathrm{-3x+4\geq 8}[/tex]
Move 4 to the right:
[tex]\mathrm{-3x\geq 8-4}[/tex]
[tex]\mathrm{-3x\geq 4}[/tex]
Divide both sides by -3:
[tex]\mathrm{x\leq \displaystyle-\frac{4}{3} }[/tex]
Therefore, the solutions are
[tex]\mathrm{x\geq 4}\\\mathrm{x\leq \displaystyle-\frac{4}{3} }[/tex]
[tex]\bigstar[/tex] Note:
If we divide both sides of an inequality by a negative number, we flip the inequality sign.
I hope this helps you.
Have a nice day.
[tex]\boxed{imperturbability}[/tex]
new shopping mall is considering setting up an information desk manned by one employee. Based upon information obtained from similar information desks, it is believed that people will arrive at the desk at a rate of 20 per hour. It takes an average of 2 minutes to answer a question. It is assumed that the arrivals follow a Poisson distribution and answer times are exponentially distributed.
a Find the probability that the employee is idle.
The probability that the employee is idle in the shopping mall based on the information given will be 0.33.
How to calculate probability?From the information given, it is believed that people will arrive at the desk at a rate of 20 per hour and that it takes an average of 2 minutes to answer a question.
Therefore, the probability that the employee is idle will be:
= 1 - (20/30)
= 1 - 0.67
= 0.33
Therefore, probability that the employee is idle is 0.33.
Learn more about probability on:
https://brainly.com/question/24756209
