7a* Consider the distance is x
2/3x = 240
x = 360
The Distance between two points = 360 Km
7b* Consider the average speed at 2/3 distance was V
(45+V)/2 = 54
45+V = 108
V= 108-45= 63km/hr
The average speed for the last 2/3 trip was 63 km/hr
I NEED HELP PLEASE !!
Answer:14=x
Step-by-step explanation:
What is the perimeter of triangle XYZ?
Answer:
126
Step-by-step explanation:
Factor x2 – 19x – 20 completely.
Answer:
Step-by-step explanation:
x^2-19x-20
=x^2-(20-1)x-20
=x^2-20x+x-20
=x(x-20)+1(x-20)
=(x-20)(x+1)
Please Help me need help
Answer:
-1 * (x/y)
Step-by-step explanation:
-x/y = x /-y
Factor out the negative
-(x/y) = -(x/y)
This is equal to -1 * (x/y)
I need help with this problem. please help.
Answer:
B
Step-by-step explanation:
What is the equation of the line that has a slope of -2 and passes through the point (-1, 2)?
Answer:
[tex]{ \bf{y = mx + c}} \\ 2 = ( - 2 \times - 1) + c \\ c = 0 \\ \\ { \boxed{ \bf{y = - 2x}}}[/tex]
Answer:
y = -2x
Step-by-step explanation:
The equation of a line in slope intercept form
y = mx+b where m is the slope and b is the y intercept
y = -2x +b
Using the point
2 = -2(-1)+b
2 = 2+b
Add -2 to each side
2-2 =b
0=b
y = -2x+0
y = -2x
-2(5x+8)=14+6x step by step
Answer:
x=-15/8
Step-by-step explanation:
Hi there!
We're given the equation -2(5x+8)=14+6x and we need to find the value of x
we do this by isolating the variable so that x is on one side, and everything else is on the other
First, we need to do the distributive property on the left, as the -2 is factored out of 5x+8 and it makes solving for x harder
-2(5x+8)=14+6x
multiply both 5x and 8 by -2
-10x-16=14+6x
add 16 to both sides to clear it from the left side (-16+16=0)
-10x-16=14+6x
+16 +16
_____________
-10x=30+6x
subtract 6x from both sides (6x-6x=0)
-10x=30+6x
-6x -6x
_____________
-16x=30
now, we do have x by itself, but we have -16 attached to it; we need the value of 1x, or x without any coefficient in the front of it
divide both sides by -16
x=30/-16
simplify (divide both sides by -2)
x=-15/8
we can leave it as an improper fraction
Hope this helps! :)
Answer:
x = 15 / 8
Step-by-step explanation:
−2(5x+8) = 14 + 6x
Simplify both sides of the equation.
−2(5x+8) = 14 +6x
(−2)(5x) + (−2)(8) = 14 +6x (Distribute)
−10x +−16 = 14 +6x
−10x −16 = 6x +14
Subtract 6x from both sides.
−10x −16 −6x = 6x + 14 −6x
−16x −16 = 14
Add 16 to both sides.
−16x −16 +16 = 14 + 16
−16x=30
Divide both sides by -16.
-16 x / - 16 = 30/-16
Simplify ( divide RHS side by - 2 )
x = 15 / 8
can someone help me pls
answer chocices
a.80
b.180
c.100
d.90
Answer:
<1= 100°
Step-by-step explanation:
<1=<5 Corresponding angles are equal
To find <5
180-80=100
Therefore <1=100
In the diagram below, lines h and s are parallel. If the m∠2 = 70°, what is the angle measurement of m∠7?
a. 70
b. 130
c. 7
d. 110
Answer:
c
Step-by-step explanation:
took it
Can anyone help with Qs 22-25 pls !!
Or the ones you can do
Answer:
24 is C and 25 is B , ill try and do the other questions if u need me to explain 24 and 25 lmk!
Suppose a normal distribution has a mean of 48 abd a standard deviation of 5. What is the probability that a data value is between 48 and 52?
Answer:
P(48<x<52) = 0.2881
Step-by-step explanation:
P(48<x<52) = normalcdf(lower,upper,µ,σ) = normalcdf(48,52,48,5) ≈ 0.2881
Therefore, the probability that a data value is between 48 and 52 is 0.2881, or about a 28.81% chance of occurrence.
A newspaper conducted a survey to find out how many high school students play video games. The two-way table below displays the data from the survey. Based on these data in the table, which statement is true? A. There were 2,451 boys surveyed and about 29% of them play video games. B. There were 2,996 girls surveyed, and about 45% of them play video games. C. There were 5,447 students surveyed, and about 54% of them do not play video games. D. There were 2,493 students surveyed, and about 34% of them are girl who do not play video games.
Answer:
c
Step-by-step explanation:
Match the corresponding sides.
Solve the problem.
A teacher is going to assign each student a 3-digit code using the digits 0 through 4. How many codes are possible if no repetitions are allowed?
A.) 60
B.) 125
C.) 24
D.) 64
Answer:
24 codes are possible
Step-by-step explanation:
0 through 4 means we are to select from 0,1, 2 , and 4
That’s a total of 4
The first number has 4 choices, the second 3, the 3rd two and the last 1
The product of the choices are;
4 * 3 * 2 * 1 = 24 codes
Find the sum of the following series 5+10+20+...+40960
Please help I’ll give Brainlyiest
Answer:
40995
Step-by-step explanation:
not sure, your question is not as clear, therefore, rephrase it so i can provide a clearer answer
What is the gradient of the blue line?
The slope or gradient of the blue line from the given graph is -3.3.
The equation of line is shown in the graph.
What is slope or gradient of a line?The slope or gradient of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The formula to find the slope of a line is slope or gradient = Rise/Run
From the given graph, the gradient of a line is
Slope = rise/run
= -4/1.2
= -3.3
Hence, the slope or gradient of the blue line from the given graph is -3.3.
To learn more about the slope of a line visit:
https://brainly.com/question/14511992.
#SPJ1
Evaluate the value of x to 1 d.p
Thank you
Answer:
value of x = 2.8
Step-by-step explanation:
By law of cosines,
[tex] {a}^{2} = {b}^{2} + {c}^{2} - 2 \times b \times c \times cos(100) \\ {x}^{2} = {13}^{2} + {10}^{2} - (2 \times 13 \times 10 \times cos100) \\ = 169 + 100 - 260 \times 0.862 \\ = 269 - 260 \times 0.862 \\ = 7.758 \\x = \sqrt{7.758 } \\ = 2.785 \\ = approx \: 2.8[/tex]
need help on this please giving brainlest! :)
4n + 2 = 6 (1/3n-2/3)
N=???
l give brainiest
Answer:
N= -3
Step-by-step explanation:
4n+2 = 6(1/3n - 2/3)
4n+2 = 2n - 4
2n +2 = -4
2n = -6
n = -3
Answer:
- 3
Step-by-step explanation:
4n + 2 = 6 ( 1 / 3 n - 2 / 3 )
Divide 2 on both sides,
2n + 1 = 3 ( 1 / 3 n - 2 / 3 )
2n + 1 = 3n / 3 - 6 /3
2n + 1 = n - 2
2n - n = - 2 - 1
n = - 3
the interest for 3 years on Rs2400is Rs576 find the interest on Rs 4200 for 2 yrs at the same rate of interest
Answer:
Solution given:
time [t]=3years
principal [p]=Rs2400
rate[r]=?
simple interest [S.I]=Rs 576
we have
S.I=ptr/100
576=2400*3*r/100
576=72r
r=576/72
r=8%
now
principal [p]=Rs 4200
time[t]=2years
rate[r]=8%
simple interest [S.I]=?
we have
S.I= ptr/100=4200*2*8/100=Rs 672
The required interest is Rs 672.
please help!! i have no clue what to do and this packet is due tonight.
Answer:
[D] ∞
General Formulas and Concepts:
Calculus
Limits
Step-by-step explanation:
Step 1: Define
Identify
[tex]\displaystyle \lim_{n \to \infty} s(n)[/tex]
[tex]\displaystyle s(n) = (\frac{5}{4n^4})(3n^5 + 3n^4 + 2n^3 + n^2)[/tex]
Step 2: Evaluate
Substitute in function [Limit]: [tex]\displaystyle \lim_{n \to \infty} (\frac{5}{4n^4})(3n^5 + 3n^4 + 2n^3 + n^2)[/tex]Multiply: [tex]\displaystyle \lim_{n \to \infty} \frac{5(3n^5 + 3n^4 + 2n^3 + n^2)}{4n^4}[/tex]Power Method: [tex]\displaystyle \lim_{n \to \infty} \frac{5(3n^5 + 3n^4 + 2n^3 + n^2)}{4n^4} = \infty[/tex]Since the degree of the polynomial is greater in the numerator than in the denominator, the top will always increase faster than the bottom, thus getting infinitely larger.
Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Limits
Book: College Calculus 10e
A recipe calls for 2 teaspoons of orange juice. A can of orange juice is 22 fluid ounces. How many teaspoons of juice are in a can
Answer:
132 teaspoons in a 22 ounce can
Step-by-step explanation:
There are 6 teaspoons in 1 ounce
22 * 6 = 132
With a 20% discount, Ella was able to save $40 on a dress. What was the original price of the dress?
8. Which of the following is not a true statement?
A) 33.326 > 33.316
B) 24.10009 < 24.11
C) 34.32 = 34.3200000
D) 27.4200 > 27.42
Answer:
Answe is D
Step-by-step explanation:
The zero doesn't mean any sense when it comes to decimal..
Answer:
i think its D
Step-by-step explanation:
27.42000 > 27.42000 is wrong because they're equal.
correct answer:
27.42000 = 27.42000
hope this helps!
Please help with this
Step-by-step explanation:
multiply 455 by 0.20
convert percentage to decimal
20% = 0.20 ( multiply by 10^-2)
why does this work?
convert to a fraction
20/100 ( this is also how you get decimal)
simplify 20/100 = 1/5
so multiplying 455 by 0.20 is the same as dividing by 5
find the ratio of the perimeter of two similar trapezoids with area 49cm^2 and 9cm^2
Answer:
3260 is the ratio of two similar trapizoids
Answer:
7:3
Step-by-step explanation:
(Ratio of perimeter)^2 = ratio of area.
Therefore
ratio of perimeter = sqrt(ratio of area) = sqrt(49/9) = 7/3
At Barlow School,4/9 of the 873 students are boys. Add to Willow school, 2/3 of the 630 students are girls. Which school has the greater number of boys and by how many?
Answer:
Barlow School has more boys. It has 178 more boys than Willow School.
Step-by-step explanation:
[tex] \frac{4 \times 873}{9} = \frac{3492}{9} = 388[/tex]
Barlow School has 388 boys.
[tex] \frac{630 \times 2}{3} = \frac{1260}{3} = 420[/tex]
There are 420 girls in Willow School. To find the number of boys, subtract the number of students with the number of girls.
630 - 420 = 210
Willow School has 210 boys
388 - 210 = 178
Barlow School has 178 more boys than Willow School
Estimate 16.26+4.169 by first rounding each number to the nearest tenth.
Answer:
16.3 + 4.2 = 20.5 (20.5 has not been rounded)
Step-by-step explanation:
I just rounded both numbers to the nearest tenth, it should be accurate. I hope I helped :)
What is the sum of the pink and green area?
Answer:
I think the answer is 11x
Answer:
11x
Step-by-step explanation:
Pink area = 6x
Green area = 5x
Total (sum) = 6x+5x =11x
2 birds are building a nest. Bird A is flying toward the nest at the same time bird B is flying away from it
Answer:
Step-by-step explanation:
is it that 1 bird is at the nest and the other is flying away ?
