Answer:
Review both cases and pick the most appropriate answer
Step-by-step explanation:
First case where it's 9(x^2):
9x^2 + x = 3^4
9x^2 + x = 81
9x^2 + x - 81 = 0
x = b±√(b²-4ac) / 2a
x = 1±√(1²-4(9)(-81)) / 2(9)
x = 1±√(1+2916) / 18
x = 1±√(2917) / 18
x = 1+√(2917) / 18
x = 1-√(2917) / 18
Second case where it's (9x)^2:
(9x)^2 + x = 3^4
(9x)^2 + x = 81
81x^2 + x = 81
81x^2 + x - 81 = 0
x = b±√(b²-4ac) / 2a
x = 1±√(1²-4(81)(-81)) / 2(81)
x = 1±√(1+26244) / 162
x = 1±√(26245) / 162
x = 1+√(26245) / 162
x = 1-√(26245) / 162
plsss help me as soon as possible!
id say the answer is ether C or A i would go with C but i might be wrong im very sorry if i am wrong
Tim's credit card has a restriction that he must pay either 15 percent of the unpaid balance or $25, whichever is greater
Which will he pay if he has an unpaid balance of $216?
A) $25
B) 15%
Answer:
He has to pay 15% as that is 32 and more than $25
Step-by-step explanation:
If you take 15% out of 216 it will become 32.
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(x + 3) - [(x+ 2)(x2 - 1)]
Step-by-step explanation:
can show you step by step how to figure it out it comes in handy a lot of times
PLEASE HELP ME! I WILL GIVE YOU BRAINLIEST! 50 POINTS
I. Collect data from several fast-food chains on the number of fat calories and grams of saturated fat in menu items. A record at least 12 ordered pairs of (fat calories, grams of saturated fat). Organize your data in a table.
II. Make a scatter plot of the data on graph paper. Be sure to label the axes and use an appropriate title for the graph.
You may wish to use a graphing calculator, spread sheet, or other technology resource (such as the graphing utility link below) to aid you in graphing.
III. Draw a trend line for the scatter plot. Use the following scatter plot of the ordered pairs (fat grams, total calories) as an example.
IV. Calculate the slope of the trend line. (Choose two points on the line and find vertical change over horizontal change.)
Note: Graphing calculators and spread sheets have features with which to draw trend lines and determine the equation. You may choose to use one of these options. If you use technology, indicate what steps were taken to arrive at your equation.
V. Using the slope and y-intercept, write the equation of the trend line ( y = mx + b).
VI. Choose a "calories from fat" value that is not in your collected data set and that is at least 10 fat calories away from any collected value. Use the equation calculated in step V to predict the number of fat grams in an item having that number of fat calories. Be sure to show your work.
VII. Search for an item in a fast-food menu having the same number of fat calories as the one you chose above. (If you cannot find the exact value, get as close as you can.) Compare the calculated value from step VI to this actual value. Explain why (or why not) you would have expected your prediction (calculated value) to be close to the actual value.
Answer:
IV. Two points: (21,430), (29,541)
29/541 - 21/430, 541-430 = 111, 29 - 21 = 8 ,
now we have 111/8 which equals 13.87, or rounded to 14the slope is 14
V. the equation is y = 14x + 94
VI. If an item has 600 calories: y = 14x + 94, substitute for y, 600 = 14x + 94, 600 - 94 = 506, 506 divided by 14 = 36.14. There are approximately 36 grams of fat in an item that has 600 calories.
VII. In my estimate, I calculated that there would be approximately 36 grams of fat in a 600 calorie item. When compared to a menu item of 600, there was only about 29 grams of fat. There are many factors that can cause such a guessed difference in between these items' grams of fat. My estimate for one was expecting a higher content of fat than what is actually advertised on this fast food menu. The fast food items that I include in my scatter plot may have all had a higher calories to fat grams ratio in general compared to this singular menu item. The location of these fast food restaurants influences the produce, meat, and other ingredients that all add to the grams of fat in the item served on the menu.
in circle k secant pec intersects chord bkd at f if ae is congruent to ab the measure of arc ed is 32 and arc bc: arc cd is 2:1 then find the measure of angle p
Answer:
60°
Step-by-step explanation:
Diameter of circle = BD ; Hence, BD = 180°
Arc BC : CD = 2 : 1
BD = BC + CD = 180
BC = 2/3 * 180 = 120°
CD = 1/3 * 180 = 60°
Since ED = 32°
BE = 180 - 32 = 148°
BA = AE
BE = BA + AE
BA = AE = 148° / 2 = 74°
Arc ABC = BA + BC
Arc ABC = 74° + 120 = 194°
P = (Arc ABC - AE) / 2
P =(194 - 74) / 2
P = 120 / 2
P = 60°
The height of the corn stalk in inches over the first 8 weeks of growth could be roughly modeled by the function
h(t) = 2(1.6 t)
where t is measured in weeks.
On which week of growth would the corn stalk grow to 21 inches?
A.week 1
B.week 4
C.week 3
D.week 5
Answer:
D
Step-by-step explanation:
The graph show that the corn stalk grown to 21 inches at week 5.
The measures of the angles of a triangle are shown in the figure below. Solve for x.
Study the graph,
YAB (1,6)
C (4,6)
C' (6,4)
A (1,3)
A' (3,1)
B' (6,1)
Which transformation will map ABC onto image AA'B'C'?
A a rotation of 90° about the origin
B, a rotation of -90° about the origin
C. a reflection in the line yx
D. a reflection in the line y=-*
E a translation of 2 units to the right and 2 units down
I got this wrong and I’m taking the test again please tell me which one is right
Answer:
2q+5=s
Step-by-step explanation:
You wouldn't subtract the 5 extra credit, you would add it
Answer:
2q + 5
Step-by-step explanation:
Each question is worth 2 points and Q represents every question. You would only add the 5 because Katelyn gets 5 extra points when she answers only one question.
How many favorable outcomes are there,
if an even number is wanted, when rolling
a dice?
Answer:
The answer is 3 out of 6 for a single die. If you're talking probability then it's a 1/3
1. 20% of 150 is what number?
Answer:
The other guy was right, it's 30.
Step-by-step explanation:
Think of this as 150% of 20, or 1.5 x 20.
This makes it easier to get the answer of 30.
Just a life hack I saw that made math easier :)
Have a good day!
10 POINTS.... write the equation of the line that has a y intercept of (0.4) and a slope of -3/2
Answer:
y = -3/2 x + 4
Step-by-step explanation:
y-4 = -3/2 ( x-0)
y = -3/2 x + 4
What is an equation of the line that passses through the points (-8,-6) and (3,-6)
Answer:
y = -6
Step-by-step explanation:
Notice the y coordinate of both points is -6
Therefor the line is horizontal
y = -6
Step-by-step explanation:
[tex]gradient = \frac{( - 6 - ( - 6))}{(3 - ( - 8))} \\ = \frac{0}{11} \\ = 0 \\ from \: \: y = mx + c \\ at \: (3, \: - 6) \\ - 6 = (0 \times 3) + c \\ c = - 6 \\ y = mx + c \\ y = - 6[/tex]
Alonzo is $120 in debt. He makes 15 per hour. He wants to have at least $75 left over after he has paid off his debt.
Inscribed angles math lib
Need help with 5, 6, 7, 8 thank you !!!
Answer:
5. B) x = 7
6. D) 35°
7. C) 67°
8. A) 142°
Step-by-step explanation:
5. Inscribed angle of a semicircle is equal to 90°. Therefore,
16x - 22 = 90
Solve for x
16x - 22 + 22 = 90 + 22
16x = 112
16x/16 = 112/16
x = 7
6. Recall: inscribed angle = ½(intercepted arc)
3x - 1 = ½(8x - 26)
2(3x - 1) = 8x - 26
6x - 2 = 8x - 26
Collect like terms
6x - 8x = 2 - 26
-2x = -24
-2x/-2 = -24/-2
x = 12
m<LMN = 3x - 1
Plug in the value of x
m<LMN = 3(12) - 1 = 36 - 1
m<LMN = 35°
7. Recall: inscribed angle = ½(intercepted arc)
Therefore,
4x + 28 = ½(11x - 1)
2(4x + 28) = 11x - 1
8x + 56 = 11x - 1
Collect like terms
8x - 11x = -56 - 1
-3x = -57
-3x/-3 = -57/-3
x = 19
Arc BC = 360° - (Arc AC + Arc AB) (Full circle)
Substitute
Arc BC = 360 - (11x - 1 + 85)
Plug in the value of x
Arc BC = 360 - (11*19 - 1 + 85)
Arc BC = 360 - (209 - 1 + 85)
Arc BC = 360 - 293
Arc BC = 67°
8. Inscribed angles intercepted by the same arc are equal. Therefore,
8x - 41 = 5x + 1
Collect like terms
8x - 5x = 41 + 1
3x = 42
3x/3 = 42/3
x = 14
5x + 1 = ½(arc PS) => inscribed angle = ½ of intercepted arc
2(5x + 1) = arc PS
Plug in the value of x
2(5*14 + 1) = arc PS
2(70 + 1) = arc PS
2(71) = Arc PS
Arc PS = 142°
Inscribed angles math lib
Need help with number 2 , 3 , and 4 thank you!!!
Answer:
See solutions below
Step-by-step explanation:
2) angle at the vertex is half that of its intercepted arc;
51 = 1/2(14x-38)
51*2 = 14x-38
102 = 14x-38
14x = 102 + 38
14x = 140
x = 140/10
x = 14
3) 9x+7 = 1/2(68)
9x + 7 = 34
9x = 34-7
9x = 27
x = 27/9
x = 3
4) 114 = 1/2(30-(8x-36+40))
114 = 1/2(360-8x+36-40)
114*2 = 356 - 8x
-8x = 228-356
-8x = -128
x = 128/8
x = 16
Answer:2
Step-by-step explanation:
51+14x-38=180
13+14x=180
14=167
X=12
complete the steps to find the value of x
Diameter of a cylindrical tank is 9 feet and the height of a tank is 25 feet. Find the volume of the cylindrical tank to the nearest hundredth place.
Answer:
write a story or description in your society caused by extremity
A pie has a diameter of 9 inches. What is the circumference of the pie
Answer:
pretty sure it is 56.55
Step-by-step explanation:
Please solve the question below - a/3 = -12
Mariana earned $132 in tips while waiting tables on Friday night. On Saturday, she earned $148 in tips. On Sunday, she went shopping and spent $79 of her tip money. How much does she have left?
Answer:
201
Step-by-step explanation:
152+148=280
280-79=201
Please help me answer this i’m being timed, tysm ur the best!:)
Answer:
See below.
Step-by-step explanation:
X-intercepts: (-1, 0) & (5, 0)
Y-intercept: (0, -5)
Vertex: (2, -9)
Axis of Symmetry: x = 2
11. What is the unknown number in
Sequence 2 in the chart?
1
7
2
14
7
Sequence Number
Sequence 1
Sequence 2
A 126
3 5
21 35
63 | 105
49
21
42
?
B 127
C 147
D 154
Answer: 1/2 of an answer is zero answer.
Step-by-step explanation:
which situation can be represented by this equation?
2,500 + 40x = 7,300-60x
Answer:
x= 48
Step-by-step explanation:
[tex]2500+40x+60x=7300\\40x+60x=7300-2500\\100x=7300+2500\\100x=4800\\x=4800/100\\x=48[/tex]
Which best compares the volumes of cylinder X and cylinder Y?
Aaron has 50cent. he buys a pencil for 40cent how much change does he get
Answer:
10¢
Step-by-step explanation:
Step 1: Subtract 40 from 50
[tex]50 - 40 = 10[/tex]
Then, Aaron will get 10 cents back
Answer:
10 cents
Step-by-step explanation:
hii! please help asap. i’ll give brainliest
Answer: D
Step-by-step explanation: The amount of times a number appears is the amount of x's you put over it. D matched it.
this is an emergency please help!!!!!!!!!!!!!
its d0wn below will mark brainlist
Answer:
ill edit this message in a moment with the answers
Step-by-step explanation:
What is the length of the hypotenuse of the triangle when x = 9?
4x+5
3x
Help ASAP
Answer:
[tex]4x + 5 \: if \: x = 9 \\ 4(9) + 5 \\ = 41 \\ \\ 3x = 3(9) \\ = 27[/tex]
[tex]41 + 27 \\ = 68[/tex]