Answers
Answer:
z = 17.5
Step-by-step explanation:
segment RX is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is
[tex]\frac{RS}{RT}[/tex] = [tex]\frac{SX}{TX}[/tex] , substitute values
[tex]\frac{15}{z}[/tex] = [tex]\frac{6}{7}[/tex] ( cross- multiply )
6z = 105 ( divide both sides by 6 )
z = 17.5
Related Questions
Sampling and Design
In an experiment, _____________ means keeping other variables constant for all experimental units.
Answers
Answer is in a photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
cutt.us/tWGpn
Help me please I need help
Answers
Answer:
a=11
Step-by-step explanation:
hold on our servers are swamped
Production shows that only 3 of the first 10 phones are working which is 30% of the phones describe how the percentage other working phones changes if the 11th and 12th phone won't work correctly
Answers
Answer:
If you have 10 phones, this is the 100%
then:
10 = 100%
Now we know that only 3 of them work correctly, then the percentage of pones that works correctly can be related to:
3 = X%
To find the value of X%, we can take the quotient of the equations:
3 = X%
and
10 = 100%
We ge:
(3/10) = (X%/100%)
We solve this for X and we get:
(3/10)*100% = X% = 30%
As we already know.
Now let's see how this percentage changes if we add more phones that do not work correctly.
Now we add another phone that does not work, so we have a total of 11 phones and 3 of them work.
then:
3 = X%
11 = 100%
The quotient is:
(3/11) = (X%/100%)
(3/11)*100% = X% = 27.3%
If we add another phone, now we have 12 phones and only 3 of them works, then 12 is the 100%, and we have the equations:
3 = X%
12 = 100%
Then we get:
(3/12) = X%/100&
(3/12)*100% = X% = 25%
2.2.2 A woman has a mass of 350lb. what is the mass in kg?
Answers
Answer:
158.757
Step-by-step explanation:
look it up
Answer:
Step-by-step explanation:
1 kg = 2.205 lb
350 lb × (1 kg)/(2.205 lb) = 157.8 kg
A car traveled 3600 miles in 3 hours. Find the speed of the car.
Answers
Answer:
speed=distance/time
speed=3600/3
speed=1200m/s
Answer:
The car is going 1200 miles per hour.
Step-by-step explanation:
5 - 2 (4а + 1) - За - 13 I need help
Answers
Answer:
-11a - 10
Step-by-step explanation:
simplify in order of terms: -2(4a + 1) - 3a - 13 + 5
simplify: -8a - 2 - 3a - 8
simplify again: -11a - 10
5 -8a -2 - 3a - 13
3 - 11a - 13
-10 - 11a
and if you want to solve for a:
-10 - 11a = 0
-11a = 10
a = -10/11
Help I have 10 minutes left
55
15x + 5
8
09
0.7
O 3,3
Answers
Someone help and please make sure it’s right
Answers
Answer:
20°
Step-by-step explanation:
Look at the attached photo.
∠a and ∠e are equal because they are vertical angles.
So, m∠a = 110°
Then, ∠f is an exterior angle to angles a and c. So,
m∠f = m∠a + m∠c
Substitute and solve.
130 = 110 + m∠c
m∠c = 20°
Then, ∠c and ∠d are vertical angles so they are equal.
m∠c = m∠d
m∠d = 20°
I hope this helps! Feel free to ask any questions!
A scooter costs $160. A bicycle costs 20% more than the scooter. How much does the bicycle cost? ?
Answers
Answer:
$192
Step-by-step explanation:
160 = 100% or 1.00
20% = 0.2 + 1.00
= 1.20
160 x 1.20 = $192
Answer:
$192
Step-by-step explanation:
$160 + 20% = $192
what is 30% of $240?
Answers
Answer:
72
Step-by-step explanation:
.30×240
72
Answer:
$72
Step-by-step explanation
You need to turn a percent into a decimal. To do that, you move the decimal twice to the left so, 30%=.3.Multiply: 240*.3=72$72Hope this helped!! :)
Stay safe and have a wonderful day/night!!!!!
Brainliest?!?!
Make this into a smaller word problem
7.4z−5(−1.6z+2.4)
:D
Answers
Expand by distributing terms.
2 Remove parentheses.
3 Collect like terms.
4 Simplify.
A person invests 2000 dollars in a bank. The bank pays 4.75% interest compounded
quarterly. To the nearest tenth of a year, how long must the person leave the money
in the bank until it reaches 3500 dollars?
A = P(1 + + ?.)nt
n
00
Answer:
Submit Answer
Answers
Answer:
t = 2.7
Step-by-step explanation:
1. Use formula provided
2. A = 3500 B = 2000 r = 4.75 n = 12months/4 = 3 months t = ?
3. Solve
3500=2000(1+4.75/3)^3t
3t=logbase(31/12)*1500
t=logbase(31/12)*1500 / 3
t ≅2.568
Answer:11.9
Step-by-step explanation:
please answer asap 17 brainy points is all I had left
Answers
Answer:
A) 69.08 m
Step-by-step explanation:
C=2πr
C=2π(11)
C=22π
C≈69.12
Answer:
drraaaaaa wild'n out boiii
Step-by-step explanation:
Taking my points back.
12x^2-36x=0 solve for x
solve for x
Answers
Answer:
x = 0 or x = 3
Step-by-step explanation:
This is a quadratic equation, but because the constant term is zero, we can speed up the solution by factoring 12x^2 - 36x = 0:
12(x^2 - 3x) = 0, or
12(x)(x - 3) = 0
Thus, either x = 0 or x = 3
A sample of a radioactive isotope had an initial mass of 360 mg in the year 1998 and
decays exponentially over time. A measurement in the year 2004 found that the
sample's mass had decayed to 270 mg. What would be the expected mass of the
sample in the year 2011, to the nearest whole number?
Answers
Answer:
193 mg
Step-by-step explanation:
Exponential decay formula:
[tex]A_t = A_0e^r^t[/tex]where Aₜ = mass at time t, A₀ = mass at time 0, r = decay constant (rate), t = timeOur known variables are:
1998 to the year 2004 is a total of t = 6 years.The sample of radioactive isotope has an initial mass of A₀ = 360 mg at time 0 and a mass of Aₜ = 270 mg at time t.Let's solve for the decay constant of this sample.
[tex]270=360e^-^r^(^6^)[/tex][tex]270=360e^-^6^r[/tex] [tex]\frac{3}{4} =e^-^6^r[/tex][tex]\text{ln} (\frac{3}{4} )= \text{ln}(e^-^6^r)[/tex] [tex]\text{ln} (\frac{3}{4} )=-6r[/tex] [tex]r=-\frac{\text{ln}\frac{3}{4} }{6}[/tex] [tex]r=0.04794701[/tex]Using our new variables, we can now solve for Aₜ at t = 7 years, since we go from 2004 to 2011.
Our new initial mass is A₀ = 270 mg. We solved for the decay constant, r = 0.04794701.
[tex]A_t=270e^-^(^0^.^0^4^7^9^4^8^0^1^)^(^7^)[/tex] [tex]A_t=270e^-^0^.^3^3^5^6^2^9^0^7[/tex][tex]A_t=193.01982213[/tex]The expected mass of the sample in the year 2011 would be 193 mg.
A line passes through the point (-6, 5) and has a slope of -3.
Write an equation in slope-intercept form for this line.
Answers
Answer:
y
Step-by-step explanation:
y
=
4
x
−
26
Explanation:
The slope-intercept form of a line is:
y
=
m
x
+
b
where:
m
is the slope of the line
b
is the y-intercept
We are given that
m
=
4
and the line passes through
(
7
,
2
)
.
∴
2
=
4
⋅
7
+
b
2
=
28
+
b
b
=
−
26
Therefore the equation of the line is:
y
=
4
x
−
26
graph{y=4x-26 [-1.254, 11.23, -2.92, 3.323]}
One equation in a system is 4x – 2y = 8. Which equation gives the system no solution?
Answers
Answer:
-8
Step-by-step explanation:
Correct me if i'm wrong
Manuel can mow 2 yards per hour. Let h represent the number of hours. Which equation best represents how long it will take him to mow 30 yards?
A=2h=30
B=30(2)=h
c 30h=2
D h/2=30
Answers
Answer:
2h = 30
Step-by-step explanation:
i hope helper
Okay last question, please someone help me !
Answers
Answer:
hey mate!!
Step-by-step explanation:
-28 is the answer
Answer:
-28
Step-by-step explanation:
Please simplify this expression.
1 + 4.25n + 32p – 3 + (–2p) + 54n
Answers
Answer:
58.25n+30p-2
Step-by-step explanation:
Given the expression as;
1 + 4.25n + 32p – 3 + (–2p) + 54n
collect like terms
1-3+4.25n+54n+32p-2p
-2+58.25n+30p
58.25n+30p-2
I have copied one brainly user's answer, sorry for that...
However, hope it helps you!!!
Find the value of x. Round to the nearest tenth if needed.
Answers
144 + 36 = x^2
180 = x^2
13.416407865 = x
rounded
x = 13.4
x + 6 = -6
please help me pls
Answers
explanation...
−
6
=
6
−
6
+
6
=
6
+
6
add both sides to the equation
and then simplify
this is a lil hard can i get help?
Answers
Answer:
A. 5+3=3+5
Step-by-step explanation:
The commutative property of addition says that changing the order of numbers does not change the sum. In this case, they both equal 8 even though the numbers are switched.
Find the intersection of the circle x² + y2 = 29 and y = x-3 algebraically.
Answers
Answer:
(x=-5 and y =-2) or (x=2 and y=5)
Step-by-step explanation:
i did the math it wasn't that hard
Determine the slope of the line that passes through the points (-1,7) and (2,9)
Answers
Answer:
y=2/3x+23/3
check image
Please help with math
Answers
Answer:
Scale factor = 3
Step-by-step explanation:
Using similar triangles
AT/AG = AB/AC
9/3 = x+10/3x-10
Cross multiply
3(x+10) = 9(3x-10)
Expand
3x+30 = 27x-90
3x-27x = -90 - 30
-24x = -120
x = 120/24
x = 5
For the larger triangle;
AC = 3x-10
AC = 3(5)-10
AC =15-10
AC = 5
AB = x+10
AB = 5+10
AB = 15
For the scale factor;
Since AT/AG = AB/AC
9/15 = 3/5
3*3/5*3 =3/5
Since the numerator and denominator of the larger triangle is multiplies by the same factor i.3 3. Hence the scale factor is 3
The dimensions of a rectangular community garden are 47 ft by 27 ft. The gardeners plan to divide the garden into equal-sized square plots. What is the greatest possible side length of each square plot? Use pencil and paper. How many square plots will there be with this side length? What will be the total area of the square plots? Explain how you can use the total area to check your work.
Answers
Answer:
the greatest possible length of each square plot is 1 ft.
1,269 square plots
Step-by-step explanation:
Since the plots are going to be squares then the width and length need to be the same. This means that the largest size of these plots would be calculated as the largest common divisor of the length and width of the garden. In this scenario, since 47 only has two divisors 1 and 47, and 27 is not divisible by 47 then the GCD of these two numbers would be 1. Meaning that the greatest possible length of each square plot is 1 ft.
To calculate the total number of plots needed we divide the square footage of the garden by the square footage of each individual plot like so...
47 * 27 = 1,269 sq. ft.
1 * 1 = 1 sq. ft.
1,269 / 1 = 1,269 plots
Finally, we see that we need a total of 1,269 square plots to cover that same area of the garden.
203/4108 as a percent
a. 4.94%
b. 20.24%
c. 0.049%
d. 49.42%
Answers
please help will mark brainlyist
Answers
Answer:
45.5
Step-by-step explanation:
66+3x+8=5x+50
3x+74=5x+50
75=2x+50
2x=25
x=12.5
3×+8=45.5
what do I do and how do I do it ?
Answers
Answer:
10
Step-by-step explanation:
because it is
Answer:
Step-by-step explanation:
A line is
y=mx+b where m is the slope, however we are told that this is a horizontal line, thus the slope is zero as y does not change, With zero slope y=mx+b becomes
y=b where the constant b is the value of y. We have the point (5,-7) so b=-7 and the line is
y=-7