Answer: Two equivalent ratios form a proportion. Equivalent ratios have the same value.
Shelley's cup of tea cooled down 1/2 of a degree in 10 minutes. At what rate is her tea cooling down?
1degree every 20 minutes or
3degrees per hour
What is the area of this trapezoid
ZA and B are vertical angles. If mZA = (2x + 7)º and m B = (5x + 16),
then find the measure of ZB.
Answer:
1°
Step-by-step explanation:
What is 21.933 rounded to the nearest ten thousand
Answer:22,000
Explanation:
21.933=21.930
21.930= 21.900
21.900 = 22,000
I need help with surface area
Answer:
Area=2πrh+2πr2Area=2πrh+2πr2=2×π×3·4+2×π×32
≈131.94689
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
Answer:
132.3
Step-by-step explanation:
A= 2 π r h+2 π r²
A=2×3.14×3×4+2×3.14×3²
A=6.3×3×4+6.3×9
A=75.6+56.7
A=132.3
(π is rounded up to 3.14)
NOTE:
The answer might defer from the calculator answer (which is 131.9) and that is because the value of pi taken by the calculator is the whole value and here it is rounded up to 3.14 which is what you take when calculating manually
Samantha is mixing yellow and red paint to make orange paint. The table below shows the ratio of drops of red paint to yellow paint needed to make orange paint. Complete the table to determine how many drops of red paint are needed when 35 drops of yellow paint are used.
Order these coordinates least to greatest:
-2, 0
4, 12
1, -3
-4, 12
0, -4
3, 5
-3, -2
2, 0
Answer:
-4, 12
-2, 0
-3, -2
0, -4
1, -3
2, 0
3, 5
4, 12
Step-by-step explanation:
We can see then when we graph it, check attached
[] The greater numbers have both their x and y positive
[] The lesser numbers have both their x and y negative
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
315 is what percent of 750?
Answer:
42
Step-by-step explanation:
✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨✨
Please help! I will mark brainliest!
Answer:
(x⁴ + 1)(x⁴ + 4)
Step-by-step explanation:
You can treat this equation in exactly the same way as a quadratic equation since the power of the second term is half that of the first;
The powers don't have to be 2 and 1.
FAST ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
0.5
Step-by-step explanation:
just use any point you can find in the graph
and use the dollar to divided by the cups.
the point I chose is 1 dollar for 2 cups. So it's 0.5 dollar for 1cup
Help
9x−7=29
Ancwer options:
x=4
x=36
x=229
x=−4
Answer:
x=4
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
9x-7=29
9x=29+7
x=36/9
x=4
Write the STANDARD FORM of the equation of each line given the Slope and y-intercept.
1) Slope = 8, y-intercept = 3
2) Slope= -2/3, y-intercept = 1
Answer: See below
Step-by-step explanation:
The basic form of an equation of a straight line in slope intercept form is y=mx+b, where m is the slope and b the y intercept (the value of y when x=0)
1) Slope = 8, y-intercept = 3
y=mx+b: y = bx + 3
2) Slope= -2/3, y-intercept = 1
y=mx+b: y = -(2/3)x + 1
Abook sold 42,500 copies in its first month of release. Suppose this represents 7.8% of the number of copies sold to date. How many copies have been sold to date? Round your answer to the nearest whole number.
l 3F - 2g l + 2 if F= -2 and g= 1
Answer:
Step-by-step explanation:
3f-2g
Find the value of x.
VALUE OF X = 465756 X 366765=X
4. Determine the measure of angle 1 in the figure.
PLEASE can anyone answer these questions? this is due tomorrow and still havent turned in anything URGENT
#1 Mrs. Galicia sells online math and reading games. Her revenue for each game (in dollars) is modeled by the given equations, where x is the number of days since the games went on sale.
Math game: M(d)=x^2-9x-10
Reading game: R(d)=2x+10
Solve the system algebraically.
a) what are the two solutions to this system? SHOW YOUR WORK.
b) after how many days is the revenue for each game the same?
#2 Mrs. Galicia dropped a ball from the top of a tower. At the same time, her son, Antonio, launches a rocket from a different level of the tower.
The height of the tennis ball in feet after t seconds can be represented by the quadratic function:
b(t)=-t^2-2t+36
The height of Antonio's rocket after t seconds can be represented by the linear function:
p(t)=-2t+20
a) what are the two solutions to this system? SHOW YOUR WORK.
b) explain which solution is not reasonable in this situation.
c) after how many seconds do the rocket and the ball reach the same height?
What letter on this number line represents -(3/2)?
Step-by-step explanation:
B Represent [tex] \sf{ - ( \dfrac{3}{2}) }[/tex]
PLZZ HELP OTA DUE TODAY AND REALLY NEED HELP ILL GIVE 25 POINTS
Rearrange them in the correct order
Answer:
See below for answer.
Step-by-step explanation:
∠BCD is a right angle Given
∠ACB ≅∠CAD Given
A is in the interior of ∠BCD Given
m ∠BCD =90° Definition of right angle
m ∠ACD + m ∠ACD = m ∠BCD Angle Addition Postulate
m ∠ACD + m ∠ACD = 90° Substitution
∠ACD is complementary to ∠ACD Definition of complementary
∠CAD is complementary to ∠ACD If two angles are congruent, then their
complements are congruent.
determine the zeros of the function f(x) = 2(x – 6)^2 – 4
Answer:
x = 6 ± [tex]\sqrt{2}[/tex]
Step-by-step explanation:
To find the zeros equate f(x) to zero , that is
2(x - 6)² - 4 = 0 ( add 4 to both sides )
2(x - 6)² = 4 ( divide both sides by 2 )
(x - 6)² = 2 ( take square root of both sides )
x - 6 = ± [tex]\sqrt{2}[/tex] ( add 6 to both sides )
x = 6 ± [tex]\sqrt{2}[/tex]
The zeros are x = 6 - [tex]\sqrt{2}[/tex] , x = 6 + [tex]\sqrt{2}[/tex]
The College Board states that the average math SAT score is 514 with a standard deviation of 117. Colleen gathered data from 50 students in her graduating class and found the average score to be 523. She thinks that her class’s math SAT score is different from the average. Which of the following are the correct null hypothesis and alternate hypothesis? H0: Mu = 514; Ha: Mu greater-than 514 H0: Mu not-equals 514; Ha: Mu = 523 H0: Mu = 514; Ha: Mu not-equals 514 H0: Mu = 514; Ha: Mu = 523.
From the hypothesis test, we have that:
The null hypothesis is [tex]H_0: \mu = 514[/tex].The alternative hypothesis is: [tex]H_1: \mu \neq 514[/tex]At the null hypothesis, it is tested if her average is the same as the national of 514, hence:
[tex]H_0: \mu = 514[/tex]
At the alternative hypothesis, it is tested if it is different, hence:
[tex]H_1: \mu \neq 514[/tex]
A similar problem is given at https://brainly.com/question/24330815
Answer:
c
just took on edge
\
Step-by-step explanation:
please help Evaluate a-[20}{b}
Step-by-step explanation:
a = 33
b = 5
= a - 20/b
= 33 - 20/5
= 33 - 4
= 29
if 9^(2x-1)=81^(x-2)/3^x find x
The answer is to your question is x=-6
write the general form of the equation of a line that is parallel to the given line and passes through the given point. y+2= -(x+1); (-2,6)
Answer:
y = -x + 4
Step-by-step explanation:
y + 2 = -x - 1
y = - x - 1 - 2
y = -x - 3
Point: (-2,6)
Slope -1
y-intercept: 6 - (-1)(-2)
= 6- 2 = 4
Mai received a $70 gift card for a coffee store. she used it in buying some coffee that cost $8.69 per pound. after buying the coffee, she had $35.24 left on her card. How many pounds of coffee did she buy?
Answer:
4
Step-by-step explanation:
[tex] \frac{70 - 35.24}{8.69} [/tex]
[tex] \frac{34.76}{8.69} [/tex]
[tex] = 4[/tex]
Brainliest pleaseJulie likes to ride her bike during summer vacation. In June, she rides her
104.78 miles. In July, she rides 129.53 miles. In August, she rides 61.05 miles.
Which statements are true?
® Julie rides 68.48 miles less in August than in July.
® Julie rides a total of 295.36 miles during summer vacation.
© Julie rides 43.73 miles more in June than in August.
Julie rides more miles in June than in July.
© Rounded to the nearest tenth, Julie rides 129.6 miles in July.
PLEASE HELP ASAP
1. The amount of Kelly's paycheck varies directly with the number of hours
she works. Kelly receives $139.80 for 12 hours of work.
(a) Write a direct variation equation that relates the amount of Kelly's paycheck, y, to the number of hours, x,
that Kelly works.
(b) use the equation to find the amount of Kelly’s paycheck when she works 40 hours.
Answer:
(A) p=11.65h
(B) h=22
(C) p=466
Step-by-step explanation:
A) The equation for direct variation is usually y=kx, K being the constant variation, Y being the amount of Kelly’s paycheck, and x being the number of hours. So the equation would turn into p=kh. Then you have to plug in the numbers they gave you which would be, 139.80=12k. When you plug that into a calculator you get, K=11.65. So, the answer would be p=11.65h
B) For B we’re keeping the same format of the equation from question A which would be p=11.65h, but were plugging in p, the amount of paycheck she receives so, the 256.3 so our new equation would be 256.3=11.65h, putting that into a calculator will give you the answer which is h=22.
C) Same thing as question B we are keeping the same format of the equation as Question A but this time we’re pluggin in h, the amount of hours Kelly works. So our equation would be p=11.65(40). Plugging that into the calculator will give you p=466.
Hope this helps.
A birdhouse has a shadow that is 12 feet long.
Jin is 5 feet tall, and he is standing next to the birdhouse.
Jin has a shadow that is 3 feet long.
Use this information to complete the statement about the birdhouse.
Answer:
7.2
Step-by-step explanation:
3/5 * 12
3
8. Ally bikes 4 miles in
of an hour.
What is the unit rate at which Ally is biking?
Hurry!!!!
Answer:
A Mile in a flat road race takes about 3 to 4 minutes. On a flat surface, the ride is relatively smooth with no significant hurdles, hills or tricky manoeuvers.
Step-by-step explanation:
Valentina's parents are planning a trip to the Typhoon Towers resort. They plan to get a 6-day Fun Pass, which will give Valentina access to all the slides and pools at the resort during their stay. Her parents also plan to get her a $30 arcade pass. Altogether, Valentina's parents will spend $129 on passes. What is the daily cost of a Fun Pass?
Answer:
$16.50
Step-by-step explanation:
Subtract the money $129-$30=$99
$99 divided by 6
The daily cost of the fun pass paid by Valentina's parents is $16.5 per day.
A linear equation is in the form:
y = mx + b
where y, x are variables, m is the slope of the line and b is the y intercept.
Let y represent the total cost for x number of days.
Since they plan to get her a $30 arcade pass, hence b = 30. Also they will spend $129 on passes. y = 129, x = 60. Hence:
129 = m(6) + 30
6m = 99
m = 16.5
Therefore the daily cost of the fun pass is $16.5 per day.
Find out more at: https://brainly.com/question/13911928
