solve 4x^2 +x-3 using the box method
Answers
Answer:
(4x - 3)(x + 1)
Step-by-step explanation:
=4x² + x - 3
=4x² + 4x - 3x - 3
=4x(x + 1 ) - 3( x + 1)
=(4x - 3)(x + 1)
Related Questions
Make a conjecture of what the x-intercepts of the function
f(x) = (2x - 1)(x + 3) will be.
Answers
Answer:
x=-3,x1/2
Step-by-step explanation:
f(x)=(2x-1)(x+3)
TI find x intercept/zero substitute
f(x)=0
0=(2x-1)x(x+3)
swap the sides of the equation
(2x-1)x(x+3)=0
when the product of factors equals 0,at least one factor is zero
2x-1=0
x+3=0
solve the equation for x
x=1/2
x+3=0
solve the equation of x
x=-3
The equation has two solution
x=-3
x=1/2
2007 Federal Income Tax Table
Single:
Over But not over The tax is
$0 $7,825 10% of the amount over $0
$7,825 $31,850 $788 + 15% of the amount over $7,825
$31,850 $77,100 $4,386 + 25% of the amount over $31,850
$77,100 $160,850 $15,699 + 28% of the amount over $77,100
$160,850 $349,700 $39,149 + 33% of the amount over $160,850
$349,700 And Over $101,469 + 35% of the amount over $349,700
Tim Tradesman had a taxable income of $82,500. He figured his tax from the table above.
1. Find his earned income level.
2. Entered the base amount. = $
3. Found the amount over $ = $
4. Multiplied line 3 by % = $
5. Added Lines 2 and 4 = $
Answers
Answer:
Tax= $ 7,173.5
Step-by-step explanation:
Her taxable income is $ 43,000 which lies in the tax category $ 31,850 to
$ 77,100.
Tax for $ 31,850 is $ 4,386
Plus 25% of the amount = ( $ 43,000- $ 31,850 )= $ 11,150 over
25 % of $ 11,150= $ 2,787.5
Total Tax= $ 4386 + $ 2787.5= $ 7,173.5
Step-by-step explanation:
Will GIVE BRAINLIEST
A ganza is a percussion instrument used in samba music.
a. Find the surface area of each of the two labeled ganzas in terms of π , rounded to the nearest thousandths and as a decimal, round to the nearest whole number.
Surface area of smaller ganza =
π≈
cm2
Surface area of larger ganza =
π≈
cm2
b. The weight of the smaller ganza is 1.1 pounds. Assume that the surface area is proportional to the weight. What is the weight of the larger ganza to the nearest tenth of a pound?
The weight of the larger ganza is about
pounds.
Answers
Answer:
1036.2 sq. cm
Step-by-step explanation:
The surface area of the smaller ganza = 2πr2 + 2πrh
surface area = 2 x 3.14 x 3.5 x 3.5 + 2 x 3.14 x 3.5x 10
surface area = 76.93+ 219.8
surface area = 296.73 sq. cm
The surface area of the larger ganza = 2πr2 + 2πrh
surface area = 2 x 3.14 x 5.5 x 5.5 + 2 x 3.14 x 5.5x 24.5
surface area = 189.97+846.23
surface area = 1036.2 sq. cm
a. The surface area of the smaller ganza is [tex]296.73cm^{2}[/tex]
The surface area of the larger ganza is [tex]1036.2cm^{2}[/tex]
b. The weight of the larger ganza is [tex]3.84[/tex] pounds.
Surface area :From given figure,
Radius of smaller ganza ,[tex]r_{1}=3.5/21.75cm[/tex]
height of smaller ganza, [tex]h_{1}=10cm[/tex]
a. The surface area of the smaller ganza is,
[tex]S_{1}= 2 \pi r^{2} + 2\pi rh[/tex]
[tex]S_{1}=2 * 3.14 * 3.5 * 3.5 + 2 * 3.14 * 3.5* 10\\\\S_{1}=76.93+ 219.8\\\\S_{1}=296.73cm^{2}[/tex]
The surface area of the larger ganza
[tex]S_{2}= 2\pi r^{2} + 2\pi rh[/tex]
[tex]S_{2}= 2 * 3.14 * 5.5 * 5.5 + 2 * 3.14 * 5.5* 24.5\\\\S_{2}= 189.97+846.23\\\\S_{2} = 1036.2 cm^{2}[/tex]
b. Since, the surface area is proportional to the weight.
and The weight of the smaller ganza is 1.1 pounds.
[tex]\frac{1.1}{w}=\frac{296.73}{1036.2}\\ \\ w=\frac{1036.2*1.1}{296.73}\\ \\w=3.84[/tex]
Learn more about the surface area here:
https://brainly.com/question/16997207
A class used cars and vans to go on a field trip because all of the buses were already in use. They Used 10 vehicles to go on the trip. Each car holds 5 students and each van holds 13 students. If 82 students went on the trip, then how many of each type of vehicle did the class use?
Answers
Answer:
4 vans, 6 cars
Step-by-step explanation:
Whats the answer to this i can't figure it out can someone help.
Answers
Answer:
D!
Step-by-step explanation:
TRUST ME :) SINCE IT'S A RIGHT ANGLE YOU DO 90 DEGREES MINUS THE NUMBER IT GIVES, 38 TO GET 52. THEN YOU DIVIDE 52 BY 2 BECAUSE THERE'S OLP AND NLO :))) you get 26 after that. I hope I helped!
Leila bought lunch at school. She had a sandwich and a shake that cost her $8. Her shake cost
$3.75. Solve the equation 8 =s +3.75 to find the cost of Leila's sandwich, s.
Answers
Answer: I think that the sandwich is $4.25 (I'm not sure)
Answer:
s=4.25
Step-by-step explanation:
look at the screenshot for the steps! :)
answer the following this is reading!!
Answers
Answer:
A I assume
Step-by-step explanation:
I was between A and D ( The first one and the last) but I think a makes more sense
What is the solution of the system of equations?
x + 3y= -4
3x + 9y = –12
A. (-1,-1)
B. no solution
C. infinely many solutions
D. (1,3)
Answers
cómo se calcula las medidas de un rectángulo solo sabiendo cuánto mide el area
Answers
plz help fast i have to find the surface area of a 3d shape
Answers
label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area. Hope this helps! plz mark brainliest if possible
Step-by-step explanation:
I need help finding the area to the trapezoid for geometry class :)
Answers
Answer:
313.5 feet cubed
Step-by-step explanation:
A = a+b /2 (h)
14+24/2(16.5)
38/2 (16.5)
= 313.5
Someone please help me?
Answers
Answer:
Option 2 (open circle at 6 with arrow going to the right.
Step-by-step explanation:
Open circle means "excluding that number". Since x>6, x cannot be 6 so we have an open circle at 6. x>6 also means x has to be greater than 6, so we have the arrow going to the right since 7 is greater than 6, 8 is greater than 6, and so on so forth.
Which list orders –3.216, 5.34, –3.62, –1.8, and 5.4 from greatest to least?
5.4, 5.34, –1.8, –3.216, –3.62
–3.62, –3.216, –1.8, 5.34, 5.8
–1.8, –3.216, –3.62, 5.34, 5.4
5.34, 5.4, –1.8, –3.62, –3.216
Answers
Answer:
A
Step-by-step explanation:
Ur welcome
Find C. Leave your answer in simplified radical form.
Answers
9514 1404 393
Answer:
7√2
Step-by-step explanation:
The triangle is a "special triangle", an isosceles right triangle. The side lengths of this triangle have the ratios 1 : 1 : √2. Multiplying these ratio values by 7, the length of the leg, you find ...
c = 7×√2
c = 7√2
_____
If you like, you can go through the Pythagorean theorem and/or trigonometry to find the same thing.
7/c = sin(45°)
c = 7/sin(45°) = 7/(1/√2) = 7√2
Or ...
c² = 7² + 7² = 98 . . . . using the Pythagorean theorem*
c = √98 = 7√2
__
* This requires you recognize the triangle is isosceles, so the other leg is also 7. Of course, you know that as soon as you see a 45° acute angle in a right triangle.
I need help please help me
Answers
Answer:
8×3x - 8×y
Step-by-step explanation:
24x-8y this is the answer
Points a and b both on line y=3x+7 work out the missing y coordinate for a and the missing x coordinate for b
Answers
Answer:
Missing [tex]y[/tex] coordinate for [tex]a[/tex] is [tex]3x+7[/tex]
Missing [tex]x[/tex] coordinate for [tex]b[/tex] is [tex]\frac{b-7}{3}[/tex]
Step-by-step explanation:
Given: Equation of a line is [tex]y=3x+7[/tex]
To find: missing [tex]y[/tex] coordinate for [tex]a[/tex] and the missing [tex]x[/tex] coordinate for [tex]b[/tex]
Solution:
First find missing [tex]y[/tex] coordinate for [tex]a[/tex]
Put [tex]x=a[/tex] in [tex]y=3x+7[/tex]
[tex]y=3(a)+7=3a+7[/tex]
Now find the missing [tex]x[/tex] coordinate for [tex]b[/tex]
Put [tex]y=b[/tex] in [tex]y=3x+7[/tex]
[tex]b=3x+7\\3x=b-7\\\\x=\frac{b-7}{3}[/tex]
EXPLAIN why the solution to the absolute value inequality | 4x - 9 | ≥- 12 is all real numbers.
Answers
Answer:
no matter what value you substitute for x, the absolute value will force the result to be a positive number and any positive number is greater than -12
Answer: Since the absolute value of any number is always greater than or equal to zero, then the given inequality holds for every real number.
Explanation: It doesn't matter which number you substitute for x, as the absolute value will convert the number into a positive one, which will always be greater or equal to 0. Hence, every real number can be a possible answer.
Please help due in 5 minutes !
Answers
7th grade and 30 points
i have to show work
Answers
Answer:
Step-by-step explanation:
amount of discount = $10
percentage discount = $10/$39.99 ≅ 0.25 = 25%
amount of sales tax = $1.95
sales tax rate = $1.95/$29.99 ≅ 0.065 = 6.5%
cost of jeans × 1.60 = $39.99
cost of jeans = $39.99/1.60 ≅ $24.99
discounted selling price = $29.99
markup = $29.99/$24.99 ≅ 1.20 = 20%
Del Taco sells 4 Tacos for $5.00. Taco Bell sells 5 tacos for $7.50. is a better deal, because it costs less per taco.
Answers
Answer:
Tacos costs 12.50
Step-by-step explanation:
Answer:
The taco will cost aproxapilly 12.51 or 12.50
Step-by-step explanation:
HELP PLEASE!!
What is M BCD
Answers
Answer:
m(BCD)=180°-m(BCA). In the triangle ABC m(BCA)=m(ABC)=(180-52)/2=64°. Finally, m(BCD)=180-64=116°
Step-by-step explanation:
I’ll give the Brainliest to who answers this question with a reasonable explanation.
The distance that a object covered in time was measured and recorded in the table. What equation would describe this motion?
A) y = 2x + 1
B) y = 3x + 1
C) y = 2x
D) y = 3x
Thank you.
Answers
Answer:
D y=2x
Step-by-step explanation:
Using slope formula change in y over change in x
[tex] \frac{2}{1} [/tex]
the slope is 2 and when we plug the x value in it gives us our corresponding y value so the answer is D
PLEASE HELP PLEASEEE!!!!
Answers
PLS HELP BRAINLIEST !!!! BE SERIOUS PLS
dont want to report anyone :((
Answers
I say the answer would be No because the triangles are not the same Width, length or height..
Which of the following occurs within the solution process for sqrt 3(5x-2)- sqrt 3 (4x) = 0 asquaring both sides once
squaring both sides twice
cubing both sides once
cubing both sides twice
Answers
Answer:
C
Step-by-step explanation:
cubing both sides once
Answer:
C is correct
Step-by-step explanation:
Jus did it on EDGE!!!!
PLEASE HELP ME!!!!!!
2j<8, if j=8
Answers
Answer:
[tex]\\ \boxed{ \huge \boxed{\tt{} False}}[/tex]
the statement is always false because
[tex]\tt{2j=64\:and\:j=8}[/tex]
⊱┈──────────────────────┈⊰
[tex] \\ \huge\boxed{\ddot\smile}[/tex][tex] \\ \huge\boxed{\ddot\smile}[/tex][tex] \\ \huge\boxed{\ddot\smile}[/tex]
ASSESSMENT
Solve for the following problems.
1. 30 is 15% of what number?
2. What is 78% of 100?
3. 8 is what percent of 16?
4. What percent of 35 is 7?
5. 22% of what number is 66?
6. 24% of 300 is what number?
7.12 is 40% of what number?
8. What is 90% of 30?
9.7 is what percent of 14?
10. What percent of 45 is 9?
Answers
Answer:
1. 200
2. 78
3. 50%
4. 20%
5. 14.52
6. 72
7. 30
8. 27
9. 50%
10. 20%
I hope this helps:D
Marcus purchased 4 1/2 pounds of rice on Monday and 2 1/3 pounds of rice on Tuesday, What was the total weight, in pounds, of rice purchased by Marcus in the two-day period?
A. 6 1/6
B. 6 2/5
C. 6 1/3
D. 6 5/6
E. 7 5/6
Answers
Answer:
he would have bought 6 5/6 pounds of rice.
Step-by-step explanation:
4 1/2 + 2 1/3 = ?
First, you want to get common dominaters. And the closest number is 6
4 3/6 + 2 2/6 = 6 5/6
This can not be simplifyed so that would be your answer.
The total weight, in pounds, of rice purchased by Marcus in the two-day period is [tex]6\frac{5}{6}[/tex] pounds.
Addition of fraction:It is given that,
Amount of rice purchased on Monday = [tex]4\frac{1}{2} pounds[/tex]
Amount of rice purchased on Tuesday[tex]=2\frac{1}{3} pounds[/tex]
the total weight, in pounds, of rice purchased by Marcus in the two-day period is computed as;
[tex]=4\frac{1}{2}+2\frac{1}{3} \\\\=\frac{9}{2} +\frac{7}{3} \\\\=\frac{27+14}{6} \\\\=\frac{41}{6}\\ \\=6\frac{5}{6} pounds[/tex]
Therefore, the total weight of rice is [tex]6\frac{5}{6}[/tex] pounds.
Learn more about the fraction here:
https://brainly.com/question/78672
One inch equals 2.54cm.A ribbon 100in.long is how many cmlong?
Answers
Answer:
fesgqwa
Step-by-step explanation:
Answer:
254 cm
Step-by-step explanation:
multiply the 100 by the 2.54
Kaytelyn makes $10 an hour and receives weekly bonus of $25. How many hours dose she need to work this week to make more than $250
Answers
Answer:
$22.5
Step-by-step explanation:
[tex]250\leq 10x +25\\225\leq 10x\\x\geq 22.5[/tex]