Answer:
Step-by-step explanation:
6x+y = 4x+11y, isolate y terms on one side and x terms on another side by subtract 11y to both sides and subtract 6x to both sides
y -11y = 4x -6x, combine like terms
-10y = -2x , divide both sides by -10
y = (-2/-10)x, simplify the fraction
y = (1/5) x
[tex]\tt 6x+y=4x+11y\\\\6x-4x=11y-y\\\\2x=10y\\\\y=0.2x[/tex]
1.1.1 4x - 8x x 1.1.2 3x-2x =14 (Correct to two decimal places) 1.1.3 2x-2
Answer:
I think I have a ride to the dispo house and I have to go to the dispo and get the rest of the day you can get it done before you get home and I'll be there in about to be a little late to the dispo and I will be there in a few minutes to get there so we can get it done before we get back and I will be home you can get it done
Change 4972 metres to kilometers
Answer:
4.972 kilometers
Step-by-step explanation:
meters => kilometers => divide by 1000
=> 4972/1000
=> 4.972 km
Answer:
4.972
Step-by-step explanation:
divide by 1000
hope it helps
The number of people estimated to vote in an election was 7000. The actual number of people who voted was 5600
Answer:
If you mean the percentage error then look at this
Step-by-step explanation:
% error = Estimated - Actual x 100
Estimated. 1
% error = 7000 - 5600 x 100
7000. 1
% error = 1400 x 100
7000
% error = 140000/7000
% error = 20%
SAS (SIDE-ANGLE-SIDE) CONGRUENCE POSTULATE
Answer:
Step-by-step explanation:
We need all three sides to be congruent to use the SSS theorem of congruency. Either the sides are marked on the picture congruent or are congruent by reflexive property -a side is congruent with itself. Other wise the sides are not congruent.
1.
a)Yes (AB≅CD, BC≅DA, CA≅CA)
b) ΔABC≅ΔCDA
2.
a)No ( AC≅BC, CD≅CD, AD not ≅ BD)
b) ΔACD is not ≅ ΔBCD
3.
a)NO (DM≅CM, AD not ≅BC, AM not ≅BM)
b)ΔADM is not≅ΔBCM
4.
a) Yes (AC≅EG, CR≅GO, RA≅OE )
b) ΔACR≅ΔEGO
5.
a) No (QR≅SD, QS≅QS, RS is not≅ DQ)
b)ΔQRS is not≅Δ SDQ
Help me please. I cannot do it.
Answer:
1608 cm²
Step-by-step explanation:
To find the surface area of a triangular prism, we add up the area of all sides.
Rectangles:
10 * 30 = 300 cm² 21 * 30 = 630 cm² 17 * 30 = 510 cm² 300 + 630 + 510 = 1440 cm²Triangles:
8 * 21 = 168 cm²Both:
1440 + 168 = 1608 cm²If every 5 minutes I get 3 coins then how long will it take for me to get 75 coins?
Find PS.
PS= ________________
Answer:
12?
Step-by-step explanation:
i mean its the same one for SR so....
a technology task force is being formed to study technology awareness among instructors. Assume that ten people will be randomly chosen to be on the committee from a group of 28 volunteers, 20 who are technically proficient and eight who are not. Find the probability that at least five on the committee are not technically proficient.
pls Help I give brainlyest
Answer:
increased by 10%
Step-by-step explanation:
Question:
The mean lifetime of 100 mobile phones in a sample is 1,500 hours and their standard deviation is 120 hours, u is the mean lifetime of all the mobile phones produced. Perform a test of hypothesis that the sample comes from a population whose mean is 1,600 hours at 586 significance level 10 marks
Using the t-distribution, as we have the standard deviation for the sample, it is found that since the absolute value of the test statistic is greater than the critical value for the two-tailed test, there is enough evidence to conclude that the sample does not come from a population whose mean is 1,600 hours.
What are the hypothesis tested?
At the null hypothesis, it is tested if the mean is of 1600 hours, that is:
[tex]H_0: \mu = 1600[/tex]
At the alternative hypothesis, it is tested if the mean is different of 1600 hours, that is:
[tex]H_1: \mu \neq 1600[/tex]
What is the test statistic?It is given by:
[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]
The parameters are:
[tex]\overline{x}[/tex] is the sample mean.[tex]\mu[/tex] is the value tested at the null hypothesis.s is the standard deviation of the sample.n is the sample size.In this problem, the values of the parameters are:
[tex]\overline{x} = 1500, \mu = 1600, s = 120, n = 100[/tex]
Hence, the value of the test statistic is:
[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]
[tex]t = \frac{1500 - 1600}{\frac{120}{\sqrt{100}}}[/tex]
[tex]t = -8.33[/tex]
What is the decision rule?
Considering a two-tailed test, as we are testing if the mean is different of a value, with 100 - 1 = 99 df and a significance level of 0.01, the critical value is of [tex]t^{\ast} = 1.66[/tex].
Since the absolute value of the test statistic is greater than the critical value for the two-tailed test, there is enough evidence to conclude that the sample does not come from a population whose mean is 1,600 hours.
More can be learned about the t-distribution at https://brainly.com/question/13873630
What are the phase shift and period for the function y=2cos1/2(0+30°)-4
Phase shift 30° left, period 720°
Phase shift 30° right, period 330°
Phase shift 30° right, period 90°
Phase shift 30° left, period 180°
Answer:
The last one is because the phase shift happens to the left.
And the period 2pi/2
The area of 8 cm
8 cm
6 cm
7.2 cm
7.2 cm
Answer: 2(6+7+8)cm =42cm
Step-by-step explanation:hope it helps you!
Write the equation of the line that passes through the point (2, -1) and has a slope of
-3
A. Y=3x+5
B. Y=-3x+5
C. Y=-3x - 5
D. Y=3x -5
Let's recall that , the equation of line that passes through the point [tex]{\bf (x_{1},y_{1})}[/tex] and has a slope m is [tex]{\bf y-y_{1}=m(x-x_{1})}[/tex]
Now using the same concept in our question , we have ;
[tex]{:\implies \quad \sf Y-(-1)=-3(x-2)}[/tex]
[tex]{:\implies \quad \sf Y+1=-3x+6}[/tex]
[tex]{:\implies \quad \sf Y=-3x+6-1}[/tex]
[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{Y=-3x+5}}}[/tex]
Hence , Option B) Y = -3x + 5 is correct :D
Quinn is playing in a trivia competition. He earns 50 correct points for each correct response variable =c. He loses 25 points for each wrong variable =w. Write an algebraic expression to represent Quinn's points
(PLEASE RESPOND QUICKLY!!!)
Answer:
50c-25w=p
Step-by-step explanation:
Let p be Quinn's total points.
c represents the amount that he got right, therefore, earning 50 points per c's that he gets.
w is the amount of points that he loses, therefore we must subtract it from the points that he has gained from the correct questions.
What is the value of x
Step-by-step explanation:
There's no value for x. After solving, there was no value for x. therefore x=0
Sunny’s Surf Shop sold 20 surfboards last week. This week, they will sell 320 percent as many. How many surfboards will Sunny’s sell this week?
Answer:
64
Step-by-step explanation:
3.2*20=64
Answer:
Multiplying 20 by 320% is the same thing as multiplying 20 by 3.2, or 20(3.2)=64. Hope this helped!
Step-by-step explanation:
No step just very smart im only in 5th grade so i should know this if i was paying attentionSOMEONE HELP ME WITH THIS PROBLEM PLS!!!!!
Find the maximum(s), minimum(s), interval(s) of increasing, interval(s) of decreasing, end behavior and symmetry for the function f(x)=x^4-8x^2+16.
Step-by-step explanation:
I think It might be this im not sure
After 1 year, $10,000 deposited in a savings account with simple interest had earned
$700 in interest. What was the interest rate?
Step-by-step explanation:
12x × 10,000 = 700
x = 700 ÷ (12 × 10,000)
x = 700 ÷ 12,000
x = 0.58%
Vivian approximated the value of `\sqrt{35}` to be 5.8. William found a closer approximation to the value than Vivian did.
c. What could be the approximation that William found? Show or explain how you got your answer.
Answer:
7\sqrt{25}
Step-by-step explanation:
The closest and most accurate would be this because, in the number, the square root of 25 can be found, it is 5, 5 multiplied by 7 is 35, so 7 multiplied by the square root of 25 would still equal 35
Discuss the present and the future of information system in Ghana.*
Write an equation in slope-intercept form for the line that goes through points (1.4,0) and (1.-2). y= x +
pretened the 5 isn't there btw>>
Answer:
x+[1+4+0]and {1×2}
Step-by-step explanation:
can you mark me brainlist
The extended warranty on a garage door is $238. If the warranty costs 35% of the purchase price, how much does the garage door itself cost, to the nearest dollar?
Answer:
$680
Step-by-step explanation:
X = total price of garage door
238 = .35x
divide both sides by .35
680 = x
The door cost $680
how far is the jump from 45 from 65
the jump is 20
Step-by-step explanation:
because it is the difference
Chad has 40% less money than Erin.Erin has $240 .How much money does chad have?
Answer:
96
Step-by-step explanation:
Use g00g*e- just type --% of $----.
sorry its censors the word.
Answer:
Chad has: $144
Step-by-step explanation:
First we need to get 40% of 240 which we can do by multiplying 240 by 0.40.
240 * 0.40 = 96
Now we can just take what we got for 40% of 240, and then subtract it from 240.
240 - 96 = 144
what is a double prime in geometry?
provide example if possible.
Answer/Step-by-step explanation:
A double prime is a symbol used to distinguish a third quantity x^('') ("x double prime") from two other related quantities x and x^' ("x prime). Double primes are most commonly used to denote transformed coordinates, conjugate points, and derivatives. A double prime is also used to denote the number of arc seconds in an angle measure, or the number of inches in a length.
can I have help with the problem in the picture pls
A square has side length y. The side length of a second square is 2 more than y. Express the area, A, of the second square in terms of y.
Work Shown:
Area = (side length)^2
Area = (y+2)^2
Area = (y+2)(y+2)
Area = y^2 + 2y + 2y + 4
Area = y^2 + 4y + 4
Find the equation for the line that passes through the point (3,4) and that is parallel to the line with the equation x=4
Answer:
x = 3
Step-by-step explanation:
This is a slightly special case because x = 4. That means that there is no slope to the line.
Since our parallel line goes through the point (3, 4) the equation will be x = 3 to "match" the slope, or lack of, to the original line.
Answer correctly and give the solution.
Answer:
(a) Independent variable: b (number of bags sold)
Dependent variable: p(b) (profit)
(b) 25
(c) 84700
(d) 70
(e) b < 25
Step-by-step explanation:
(a) Independent variable: b (number of bags sold)
Dependent variable: p(b) (profit)
(b) To break even, set p(b) to zero and solve for b:
⇒ 350b - 8750 = 0
⇒ 350b = 8750
⇒ b = 8750 ÷ 350
⇒ b = 25
(c) Substitute b = 267 into equation and solve for p(b):
⇒ 350(267) - 8750 = 84700
(d) Set p(b) to 15750 and solve for b:
⇒ 350b - 8750 = 15750
⇒ 350b = 15750 + 8750
⇒ 350b = 24500
⇒ b = 24500 ÷ 350
⇒ b = 70
(e) If she breaks even when she sells 25 bags, if she sells less than 25 bags she will have a negative profit. So b < 25
Do you guys know the answer?
Answer:
147
Step-by-step explanation:
This is because, 33 and x are supplementary so you just solve for x;
33 + x = 180
-33 -33
x = 147