Answer:
can't gfygdgdgyfdfzdfxdgguf
2/3x−1/5x=x−1
Solve this equation
Answer:
x = 1.56 and x = − 0.56
Step-by-step explanation:
2/3x - 1/5x
(2/3 x 5) - (1/5 x 3 )
10/15 - 3/ 15
13 / 15x
show x-1
13 / 15x = x - 1 here we cannot set to 0 so multiply the variable by 15x
15x^2
−15x−13 = 0
quad formula - b+/- sqrt (b^2 - 4 x a x c ) /2
x =1.556724499 and x =−0.556724499
help! 30 points if you help
Answer:
the first, the third and the last one are true
Step-by-step explanation:
Find the missing angle
25 points plus a thanks, 5 star and brainliest
tan ? = 22/48
tan ? = 11/24
tan ? = 0.4583
? = 24.62 degrees ( approximately )
[tex]\tan(?)=\dfrac{22}{48} \\\\ ?=\arctan\dfrac{22}{48} \approx24^{\circ}[/tex]
Order the following numbers from least to greatest 1/2, -0.67, -2/5, 0.54, -1.2
Answer:
-1.2; -0.67; -2/5; 1/2; 0.54
Step-by-step explanation:
because there are negative numbers, we put those first. the bigger the number behind the negative is, the smaller it is
-1.2 is the only negative with a ones place so it goes first
-0.67 comes right before -2/5, or -0.4
then we move into the positive numbers: 1/2 and 0.54
1/2 is 0.5, which is less than 0.54
so the order is -1.2; -0.67; -2/5; 1/2; 0.54
Watch help video
Find the length of the third side. If necessary, round to the nearest tenth.
20
10
Answer:
Submit Answer
attempt 1 out of 2
Answer:
if it is a right angle triangle then;
step 1 Determine if hypotenuse or side
step 2 calculate a^2+b^2 = c^2 or c^2-b^2 = a^2 if not given hypotenuse.
if it is an obtuse or scalene triangle then
step 1. Determine the triangle third length we use trigonometry as cos (side a/sideb) to determines the angle between a and b.
With such angle for opposite side we can use sin (angle) x side to find hypotenuse or sin(angle) x hypotenuse to find side.
Step-by-step explanation:
2. What is the standard form of y = 2/5x - 6
Answer:
3rd option
Step-by-step explanation:
The equation of a line in standard form is
Ax + By = C ( A is a positive integer and B, C are integers )
Given
y = [tex]\frac{2}{5}[/tex] x - 6 ( multiply through by 5 to clear the fraction )
5y = 2x - 30 ( subtract 5y from both sides )
0 = 2x - 5y - 30 ( add 30 to both sides )
30 = 2x - 5y , or
2x - 5y = 30 ← in standard form
Answer:
I hope this helps.
Step-by-step explanation:
5
What is the measure of the angle shown?
will give brainliest
Answer:
between 180 and 365 cuz it's a reflex angle
I’m taking the PSAT tomorrow and advice or tips you guys can give me?
Answer:
sit near th front of the room so you dont have distractions take a sweater or sweatshirt extra pencils(No2) stay focused if you get bored skip a few questions forward then come back see if you can bring some water and get a graphing calculator
Step-by-step explanation:
Kathy is a scientist who is working in a remote part of Australia. She earns a salary of $86 840 plus a weekly allowance of $124.80 for working under extreme and isolated conditions. Calculate Kathy’s fortnightly pay.
Answer:
$3589.60
Step-by-step explanation:
Salary per fortnight {52 weeks in a year; 2 weeks in a fortnight}
= 86840 / 52 × 2
= 3340
Allowance per fortnight = 124.80 × 2 = 249.60
Therefore, total fortnightly pay is:
3340 + 249.60 = 3589.60
Please help me with this Question
Answer:
Total volume equals V1 - V2
[tex]v = \pi {r}^{2} h[/tex]
[tex]v = 12\pi {r1}^{2} - 12\pi {r2}^{2} [/tex]
where:
r1 = radius 1
r2 = radius 2
Step-by-step explanation:
[tex]r1 \\ v1 = 12\pi {3.5}^{2} \: is \: approx. \: 461.81 {cm}^{3} [/tex]
[tex]r2 \\ v2 = 12\pi {3.3}^{2} \: is \: approx. \: 410.54 {cm}^{3} [/tex]
Total Volume v is
[tex]461.81 - 410.54 = 51.27 {cm}^{3} [/tex]
Which table represents a linear function?
Answer:
Table 2Step-by-step explanation:
Table 1x- values change 1 to 4y- values change inconsistently and repeat at -2This is not a linear function
Table 2x- values change 1 to 4y- values change consistently, with common difference of -2This is a linear function
Table 3x- values change 1 to 4y- values change inconsistently, the difference is not commonThis is not a linear function
Table 4x- values change 1 to 4y- values change inconsistently, the difference is not commonThis is not a linear function
The sum of three numbers is 21. The second number is two more than twice the first number. The second number is three times the third number. What are the numbers?
Answer:
The numbers are:
5, 12 and 4
Step-by-step explanation:
a + b + c = 21 Eq. 1
b = 2a +2 Eq. 2
b = 3c Eq. 3
From Eq. 2:
b - 2 = 2a
(b-2)/2 = a Eq. 4
From Eq. 3:
c = b/3 Eq. 5
Replacing Eq. 4 and Eq. 5 in Eq. 1:
(b-2)/2 + b + b/3 = 21
3(b-2)/6 + 6b/6 + 2b/6 = 126/6
3(b-2) + 6b + 2b = 126
(3*b + 3*-2) + 8b = 126
3b - 6 + 8b = 126
11b = 126 + 6
11b = 132
b = 132/11
b = 12
from Eq. 4
(b-2)/2 = a
(12-2)/2 = a
10/2 = a
a = 5
from Eq. 5
c = b/3
c = 12/3
c = 4
Check:
from Eq. 1
a + b + c = 21
5 + 12 + 4 = 21
ced: 7
Assignment: Lesson 2.12 & 2.13
13
Problem ID; PRABMTKN
Explain or show that the point (5,-4) is a solution to this system of equations:
3x - 2y = 23
2x + y = 6
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Answer:
2.15
Step-by-step explanation:
substitute using elimination method and divide ur answers together.
Angle X and angle Y are complementary angles. If m
Louise left her home at 11 30 a.m. and cycled to the supermarket.
She got to the supermarket at 12 15 p.m.
Louise cycled at a speed of 12 mph.
(a) (Work out the distance Louise cycled.
We are asked to find the distance Louise cycled.
Speed Louise cycled = 12 mph
Time = 11: 30 am to 12 : 15 pm
= 45 minutes
Convert 45 minutes to hour
60 minutes = 1 hour
45 minutes = 3/4 hour
Speed = Total distance ÷ Total time taken
Distance = Speed × Time
= 12 mph × 3/4 hour
= 36 / 4
= 9 miles
Therefore, the total distance Louise cycled is 9 miles
Read more:
https://brainly.com/question/25005733
Given the function f(x) = 2x, evaluate f (3).
Answer:
6
Step-by-step explanation:
Given that f(3), x=3.
Since f(x) = 2x, we plug in 3 for x, and get 2 times 3. Therefore, the answer comes out to 6.
When f(3)
Then we have:
3=2x
Now we divide by 2 (on both sides)
and are left with
x = 1.5
Hope this helps :)
John's Phone is at 50%. It charges 5% every minute.
Answer:
The phone used 10 minutes to get to 50%, and 20 minutes to full
find the square root of 196 with process.
Answer:
The square root of 196 is 14
Step-by-step explanation:
Prime factorization of 196:
2² × 7²Prime factors of 196 in pairs:
(2 × 2) × (7 × 7)Now square root of 196:
√196 = √(2 × 2) × (7 × 7) √196 = √(2 × 7)²√196 = (2 × 7) = 14Thus, The square root of 196 is 14
-TheUnknownScientist 72
Answer: [tex]\sqrt{196} =14[/tex]
Step-by-step explanation:
[tex]{\begin{array}{c|c}196 & 2 \\ 98&2 \\49 &7 \\7&7 \end {array }[/tex] [tex]196=2\cdot 2\cdot 7\cdot 7=2^4\cdot 7^2 \\\\\sqrt{196} =\sqrt{2^2\cdot 7^2} =2\cdot 7=14[/tex]
Describe the translation in each function. Then graph the function.
Y=x^2 + 4
Please give a detailed answer I don't understand
It's a Quadratic that doesn't have any real roots as the parabola doesn't cross the x-axis.
For graphing:
If you're familiar with the parabola of y=x^2, then you could graph that but just translate it upwards by +4 on the y such that f(x)+4 will be equal to it.
If you aren't, then we know the y-intercept is 4, and that's also the point of the minimum point of the curve. If I were you, I'd write a table of some of the integer values:
x y
-2 8
-1 5
0 4
1 5
2 8
The value of y is the same for x and -x as anything squared is positive.This means that there is a line of symmetry in the y-axis.
This then makes it much easier to graph, simply place these points on the graph and make sure the curve is exponential. This means the gradient (steepness) gets greater the bigger the value of x.
Which inequality models this problem?
Reiko started a business selling home medical supplies. She spent $6500 to obtain her merchandise, and it costs her $550 per week for expenses. She earns $900 per week for general expenses.
What is the minimum number of weeks it will take for Reiko to make a profit?
a.) 900w ≥ 6500 + 550w
b.) 900w < 6500 + 550w
c.) 900w > 6500 + 550w
d.) 550w > 6500 + 900w
Answer:
C
Step-by-step explanation:
$6500 is a one time purchase so there is no variable attached.
$550 and $900 per week is reoccurring so there will be a variable attached.
Since $900 is what she is making each week, this will be separate from her costs (can eliminate D).
To make a profit, her amount earned will need to be greater than her expenses, so the answer is C.
Plsss help me with this question!!
Answer:
Step-by-step explanation
So mean is average
So total 26 hours studied
and there are 20 students
so 26/20
= 1.3
The polynomial 8x + 7y + 4 is prime.
True
or
False
Answer:Is there a picture?
Step-by-step explanation:
Answer:
The WRTX is 8, 8 is not a prime number, so I believe this would be false.
Step-by-step explanation:
In the given figure, the alternate interior angles are A: 2,1 B: 2,3 C: 2,4 D: 2,5
Answer:
The alternate interior angles are 2 and 3
So it's (B)
An arcade charges a flat fee for $7 to enter and then $1.25 per ticket to play games. Write an equation that models the charges (C) in terms of the number of tickets (t) that you use:
Answer:
C = 7 + 1.25t
Step-by-step explanation:
7 remains constant
1.25 changes according to t
Answer:
C(t ) = 1.25t + 7
Step-by-step explanation:
We can establish the following equation:
C(t ) = 1.25t + 7
Where:
C(t ) = represents the total cost relative to the t number of tickets used
t = number of tickets used to play games
1.25 = cost per ticket to play games
7 = flat fee to enter the arcade
HELP QUICKKK PLZZZZ HELP ME RESLLY QUICKK
Answer:
$1.75
Step-by-step explanation:
What is the net pay?
27.25 hours worked
$5.95 an hour
Federal tax deduction $13.29
Social Security deduction $9.65
Other deductions $6.37
$122.69
$132.83
$159.41
$162.14
Net pay for the individual is $132.83
Given that;
Number of hour worked = 27.25
Per hour pay = $5.95
Federal tax deduction = $13.29
Social Security deduction = $9.65
Other deductions = $6.37
Find:
Net pay
Computation:
Net pay = [(27.25)(5.95)] - 13.29 - 9.65 - 6.37
Net pay = [(27.25)(5.95)] - 13.29 - 9.65 - 6.37
Net pay = 162.1375 - 29.31
Net pay = 132.8275
Net pay = $132.83
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5 of 8
Here is a list of numbers:
-12, -19, 1, 8, 9, 13, -15, -19, 11, 0
-
State the median.
Real numbers can be written in the form a b, where a and b are integers and b≠0, are called __________.
Answer:
Rational number
Step-by-step explanation:
.................
...
help please i suck at math
Answer:
1. -.2x
2. -.2x
3. -27
Step-by-step explanation:
First add -.65x and .45x to get -.2x then divide 5.4 by -.2 to get x alone and you get x=-27
Both the ranges and the interquartile ranges for the data sets are the same.
Neither the ranges nor the interquartile ranges for the data sets are the same.
The interquartile ranges for the box plots are the same, but their ranges are different.
The ranges for the box plots are the same, but their interquartile ranges are different.
Answer:
to find range of interquartile sets of data
you see 5 vertical lines 1 is start point 2 is start of 2nd quartile 3 is start of 3rd quartile and also represents the median. the 4th start of 4th quartile and 5th is very end point.
Therefore the interquartile is from start line 2 to start line 4
apply to each by if it says 10 and 34 then we show workjings 34-10 = 24 and that is the range once we deduct data from each other.
Therefore full range is start line 1 to end line 5
if this says 2 to 45 then full range is 45-2 = 43 and apply to each boxplot.
Step-by-step explanation: