Factor and find the roots of y= 4×^2+4×-15
Answers
=(2x - 3)(2x + 5)
roots (zero)
2x - 3 = 0
2x = 3
x = 3/2
x = 1.5
2x + 5 = 0
2x = -5
x = -5/2
x = -2.5
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Nat spent $28 on 8 DVDs. At this rate, how much would 5 DVDs cost? What is the unit rate?
Melissa and Joey enjoyed dinner at a restaurant. They paid the waiter $100.50 plus a 20% tip. How much did each person pay if they split the total bill in half?
169.6 inches cubed
667.8 inches cubed
706.8 inches cubed
Answers
Answer:
667.8 cm³
Step-by-step explanation:
To find the volume of a box;
simply multiply the length, width, and height - and you're good to go! For this case, the box is 9x7x10.6 cm, then the volume of a box is 667.80 cubic centimeters. For dimensions that are relatively small whole numbers, calculating volume by hand is easy. Therefore, the volume of the box is 667.8 inches cubed
Answers
4/25 prefered digital copies
21/25 prefered hard copies
21 is more than 4.
The only one of the possible answers that imply that more people prefered hard copies was the third option. Therefore, "More grandparents prefer using a hard copy than a digital copy." is the most likely to be true.
.
5
cups of tomatoes to make each batch of pasta sauce. If
t
represents the number of cups of sauce, which equation models this situation?
Answers
..........(dots are to fill in the spots)
t=4.5s, where s is the number of batches
hope this helps :)
Answers
To simplify the problem, we should get the amount of money 200g of flour will cost.
So we do 5/6 (5=amount of parts off 200g and 6=the amount of money) which equal to $1.2/200g
1.2*2=$2.4
Hence 400g=$2.4
g(x) = 2x3 + 3x2 - 4x + 2
Find (f – g)(x).
Answers
Answer:
-x^3-3x^2+2x+4
Step-by-step explanation:
Just calculate each coefficient of the polynomial separately.
x^3-2x+6-(2x^3+3x^2-4x+2) = (1-2)x^3+(0-3)x^2+(-2-(-4))x+(6-2) = -x^3-3x^2+2x+4.
Answer:
- x³ - 3x² + 2x + 4
Step-by-step explanation:
(f - g)(x) = f(x) - g(x)
f(x) - g(x)
= x³ - 2x + 6 - (2x³ + 3x² - 4x + 2) ← distribute by - 1
= x³ - 2x + 6 - 2x³ - 3x² + 4x - 2 ← collect like terms
= - x³ - 3x² + 2x + 4 ← in standard form
Which pair is a base and corresponding height for the triangle?
A.
b = 16 units and h = 9.6 units
B.
b = 20 units and h = 16 units
C.
b = 20 units and h = 9.6 units
D.
b = 20 units and h = 12 units
2.
(1 pt)
What is the area of the triangle?
A.
208 in2
B.
192 in2
C.
104 in2
D.
96 in2
3.
(1 pt)
What is the area of the triangle?
A.
42.14 cm²
B.
35.28 cm²
C.
21.07 cm²
D.
17.64 cm²
4.
(1 pt)
The county animal park is shaped like a triangle. Two perpendicular sides of the park measure 2.3 miles and 3.4 miles.
What is the area of the animal park?
A.
3.91 mi²
B.
5.7 mi²
C.
7.82 mi²
D.
11.4 mi²
5.
(1 pt)
What is the area of a triangle with a base of 4.6 cm and a height of 7.8 cm?
A.
12.4 cm²
B.
17.94 cm²
C.
24.8 cm²
D.
35.88 cm²
Answers
2. D 96; A = b*h*1/2
3. i can't view the pic for 3, sorry
4. C, 7.82
5. B, 17.94