Answer:
x=1.666667,−1.666667
Step-by-step explanation:
9x^2−25=0
Step 1: Add 25 to both sides.
9x^2−25+25=0+25
9x^2=25
Step 2: Divide both sides by 9.
9x^2/9=259
x^2=25/9
Step 3: Take square root.
x=±25/9
x=1.666667,−1.666667
-9 (c + 7) = -13c +7
What value of c makes the equation true? Enter the answer in the box.
Answer:
c=17,5Step-by-step explanation:
-9(c+7) = -13c+7
<=> -9c - 63 = -13c+7
<=> -9c + 13c = 7+63
<=> 4c = 70
<=> c = 70/4 = 35/2 = 17,5
CHECK THE ANSWER:-9(c+7) = -13c+7
-9(17,5+7) = -13×17,5+7
-220,5 = -220,5
Hope it's help u:))For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
a. Yes; y = 1.2x
b. Yes; y = 2x
c. Yes; y = x + 1
d. no; y does no vary directly with x.
if the recipe takes 60 minutes to cook at a temperature of 350 degrees how many minutes would it take at 200 degrees
Answer:
34.28 minutes
Step-by-step explanation:
60:350=x:200
12000=350x
x=34.28
Answer: 105 minutes
Step-by-step explanation: inverse variation = 350/200 = x/60
Help me with this please !!!
Answer:
x = 61°
Step-by-step explanation:
x and 61° are alternate exterior angles and are congruent, thus
x = 61°
Answer:
X=61.
Step-by-step explanation:
✍✍✍✍✍✍✍
Tony's family owns a Chihuahua that gets 3 dog bones each day for doing tricks. Tony has a total of
16 dog bones he must give his dog for doing tricks. Write an algebraic equation that describes the
relationship between the number of days (d) and the number of bones remaining (b).
9514 1404 393
Answer:
b = 16 -3d
Step-by-step explanation:
If Tony gives 3 dog bones per day, then he uses 3d dog bones for d days. The number remaining will be this value subtracted from the original number:
b = 16 -3d
Help!!!! Find the value of x
Answer:
180=x+10+64
-x=74-180
-x= -106
x=106
Step-by-step explanation:
Find the area of the rectangle and the triangle independently. What is the ratio comparing the area of the triangle to the area of the rectangle? (Must be in Reduced Form)
Answer:
hello your question is incomplete attached below is the complete question
answer : 2
Step-by-step explanation:
Area of rectangle = [tex](\frac{b}{h}) (\frac{h}{2})[/tex]
Area of triangle = [tex]\frac{1}{2}bh[/tex]
therefore the ratio of the area of the triangle to the area of the rectangle
= [tex]\frac{\frac{1}{2} bh}{\frac{b}{2}*\frac{h}{2} }[/tex] = 2
Substitute 9 into each equation to determine if 9 is the solution. Drag each equation into the correct column.
Answer:
m times 3 = 27
b plus 4 = 13
p minus 5 = 4
Those can all be solved with 9
the other can not
Step-by-step explanation:
i hope this helped
What type of triangle has one obtuse angle and two acute angles?
Answer:
Obtuse Triangle.
Step-by-step explanation:
If you search it up, you will see, and I hope that this helps! <3
Answer:
An obtuse triangle.
Step-by-step explanation:
An obtuse triangle has one obtuse angle. It must also have two acute angles because of the triangle sum theorem.
Hope this helps.
Which of these figures have lines of symmetry? If so, how many?
Answer:
1, 4, 0
Step-by-step explanation:
the way you did it was just right, the arrow can only be split 1 time with equal sides. The hexagon can be split 4 times with equal sides. But the lighting strike cannot be split with equal sides symmetry.
mark brainliest if helped :D
In 1998, Journeys sold 15 million pairs of Vans across the
U.S. In 2008, Journeys sold 45 million pairs of Vans. What
was the average rate of change in shoe sales for the store?
Answer:
3 million/yearStep-by-step explanation:
Average rate of change is the slope in same interval:
(45 million - 15 million)/(2008 - 1998) years=30 million / 10 years =3 million/yearIn 1998, Journeys sold 15 million pairs of Vans.
In 2008, Journeys sold 45 million pairs of Vans.
To Find:The average rate of change in show sales for the store.
Formula:Final year : 2008
Initial year : 1998
Final sale : 45 million
Initial sale : 15 million
Average sales = Final sale - Initial sale / Final year - Initial year
Explanation:Average sales = 45 million - 15 million / 2008 - 1998
Average sales = 30 million / 10 years
Average sales = 3 million / 1 year
Answer:The average rate of change in show sales for the store is 3 million per year.
how many dimes are in 16 quarters
uhh....umm 4 .....6 no 16 .....uh no carrots
Answer:
40 dimes
Step-by-step explanation:
how do you write 5,520 in scientific notations
Answer:
5.52 × 10^ 3
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
The equation x=-3 is:
Answer:
C
Step-by-step explanation:
It Is not a function, please check out the definition of function on google.
Answer:
Since x=-3, as a vertical line, has infinite values of y associated with this single value of x this is not a function. hope this helps.
Step-by-step explanation:
Triangle FGH was dilated using a scale factor of 1/2 to create triangle PQR
Which statement is true?
A. Angle F is two times the measure of angle P.
B. Angle P is two times the measure of angle F.
C. Side FG is the same length as side PQ.
D. Side FG is two times the length of side PQ.
URGENT !!!
a dairy farmer sells milk at a farmer’s market. the graph shows what she charges for different quantities of milk.
questions:
a. what is the slope of the line?
b. how much will the farmer charge for half a gallon of milk?
for every 15 students who run track there are 7 students who play baseball there are 112 more students who run track than play basball
Answer:
How many students run TRACK? 210
How many students play BASEBALL? 98
15*14= 210 and 7*14 = 98, 210 - 98 = 112
Answer:
There are 210 students who run track and 98 students who play baseball.
Step-by-step explanation:
15x= Students who run track
7x= Students who play baseball
15x - 7x = 112 (*combine like terms)
8x = 112 (*divide 112 by 8)
X = 14 (*now plug X into both equations stated earlier)
15x = 15 x 14 = 210 (Number of students who run track
7x = 7 x 14 = 98 (Number of students who play baseball)
While mining, Fred found a large metal bar that weighed 45 grams. Fred was also able to
determine that the bar had 33 grams of nickel. What percent of the weight of the bar was
nickel? Round your answer to the nearest tenth if necessary.
A.73.3%
B.70%
C.55.6%
D.71.3%
Which conic section is represented by the following equation?
3x2 – 7x + 8y2 - 2y + 1 = 0
Answer: ellipse
Step-by-step explanation:
on edge you can graph it too if you want to check.
Help please math is so hard
Answer: Well the answer is 21 lol and that is all can do for you dude! XD
Step-by-step explanation: I DUMB! XD
Find the x-intercepts for the parabola defined
by this equation:
y=3x² + 3x - 6
Write your answer as two ordered pairs:
(x1.yı). (x2,42)
Separate the values with a comma. Round, if
necessary, to the nearest hundredth
Answer:
[tex]x-intercept(s): (1,0),(-2,0)[/tex]
Step-by-step explanation:
Guess the car GIVING BRAINIEST
Hint**1959**
Google image search wont work ;)
Answer:
A ford Angelina
Step-by-step explanation:
Answer:
a cadillac..................?
What is 15% of 90? a
Answer:
13.5
Step-by-step explanation:
Jordan has $20 to share with three people how much money do three people get
Answer:
each person would get 6.66 dollars and 2 dollars would remain left iver
Solve the problem below by finding a common denominator.
5/6-2/5
Answer:
I know how to this in one of two ways and I'm not sure if they're correct but anything to help.
5/6-2/5 would get you 1/3 because if you cross multiply and cross out factors that can go into each you cant pretty much get that answer. ( i think)
or
the common denominator would be 30 multiply 5 by 5 and 2 by 6. 25-12 is 13. How I was taught was find a number that both denominators can go into then multiply by that number. So 6*5= 30 so you would multiply 5 by 5 to get 25.
Hope I explained this well, I don't really think so.
Willing to Paypal Who every can Answer this question I created.
MUST BE CORRECT OR REPORTING!
Answer: 17
Step-by-step explanation:
Each side has one line on it indicating each side is equal therefore 5y-3= 4y+1. Once you put them equal to each other you solve for y. You start by isolating the variable by inverse operations so you add 3 to both sides which leaves 5y=4y+4 and then you subtract 4y from both sides leaving y=4. Now that you found the value of y you input that value into one of the expression for one of the sides and solve. 5(4)-3= 17
is y=1/100(31)x a exponential decay?
(#4) which IS NOT a linear equation?
the king is having a sale where customers can buy 4 new tires for 419.96 what is the unit price of the tires
Answer:
you just do 419.96/4 which in this case equals 104.99
Step-by-step explanation:
6 It takes one hour to drive 80 km. How far can you drive in 20 minutes at that speed?
a) 20 km
b) 25 km
c) 27 km
d) 30 km
Please help I want with steps
Answer:
c) 27 kmStep-by-step explanation:
Speed is 80 km/h
Time is:
20 min = 20*1/60 h = 1/3 hDistance = Speed*Time
Distance is:
80*1/3 = 26.66Closest answer choice is c) 27 km
Answer:
C
Step-by-step explanation: