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Archy [21]
3 years ago
9

2.

Mathematics
1 answer:
garri49 [273]3 years ago
8 0

Answer:

  • 43.75 mi/h
  • 131.25 mi

Step-by-step explanation:

(a) 70 km/h · (1 mi/h)/(1.6 km/h) = 70/1.6 mi/h = 43.75 mi/h

__

(b) In 3 hours, the car will travel ...

  (43.75 mi/h)(3 h) = (43.75)(3) mi = 131.25 mi

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I'm Begging for somebody to do this worksheet. I can mark you brainiest and you will earn 15 points just please anybody? AND SAY
ser-zykov [4K]
(2) 2x
Bc you’re adding the imaginary one infront of the x.

(1) X squared + 25
Distribution

(3) 15x-30
Distribution

(1) x to the 6 power
You add the powers when they are being multiplied

(2) 2x squared + 7x + 12
Foil method

(2) 9x + 20
Adding Like terms

(4) 12x + 25
Adding and multiplying like terms

(2) 19x + 7
Multiplying then adding like terms.


I hope this helps ;)

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5 0
3 years ago
Write each statement as an algebraic expression.
12345 [234]
Just go through it phrase by phrase by phrase - one step at a time.

2*(       )
2*(x - 7)
\frac{2*(x - y)}{5*x*y}
6 0
3 years ago
What is the exact volume of the cone with a radius of 7in and a height of 4in use 3.14 for π
vfiekz [6]

Answer:

The exact volume of the cone is \frac{196}{3}\pi\ in^{3}

Step-by-step explanation:

we know that

The volume of the cone is equal to

V=\frac{1}{3}\pi r^{2}h

we have

r=7\ in

h=4\ in

substitute the values

V=\frac{1}{3}\pi (7^{2})(4)=\frac{196}{3}\pi\ in^{3}

8 0
3 years ago
Read 2 more answers
Please help me! I am very confused
Sphinxa [80]

Answer:

1) 22.5  A

2) 112    B

3) 430   L

4) 576   P

5) 486   L

6) 624  S

Code is A B L P L S

Step-by-step explanation:

1) Area of a triangle = 1/2 * base * height = 1/2 *5*9 = 22.5

2) Area of a parallelogram = base x height = 14 x 8 = 112

3) Area of a rectangular prism = 2(length * width) + 2*(length + height) + 2 *(length *height)

= 2(15x7 + 15*5 + 7*5)

= 2(105 + 75 + 35)

= 2 * 215

= 430

4) Volume of a triangular prism = 1/2 * base * length * height

= 1/2 * 8 * 16 * 9

= 576

5) A cube has six surfaces. Each surface has an area of s x s where s is the length of each side. In this case, each side has area of 9x9 = 81. Total surface area = 6 x 81 = 486 and that is the paper required

6) The trailer is a rectangular prism so its volume = length x width x height = 13 6 x 8 = 624

Now you have to look at each value and see which letter it corresponds to. For example answer 1) is 22.5 which lies between 0-100 so it gets letter A, answer (2) is 112 which lies in the range 101-200 so it gets the letter B and so on

4 0
2 years ago
Which expression is equivalent to 2(3 - x) - 12 + 4x<br><br> 3x - 6<br> 3x - 7<br> 2x - 7<br> 2x - 6
Nadya [2.5K]
The answer is b. 3x-6
5 0
3 years ago
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