3 years ago

Anyone know how to do this?

2 answers:

7 0

The index Number of 10 is substracted . so , 9-6 : 3 . Your final answer should be 10 in the power of 3 .

4 0

10 multiplied by itself 9 times so 90 then multiplied by itself 6 times 60 so 90/60 which equals 1.5

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yarga [219]

9r - 6 = 8r + 3
r = 9
EF = 4r + 19 = 4(9) + 19 = 36 + 19 = 55

hope it helps

4 0

3 years ago

Black_prince [1.1K]

Answer: He will need 700 pieces of wood.

Step-by-step explanation: Divide the total by how many square feet one piece of wood will cover, so 3,500/5, and you'll get 700.

Hope this helps.

5 0

3 years ago

Elza [17]

First, simplify the expression $2r^2 + 3s^3 - r^2 + 4t^2 - r^2.$ Here you have three terms with $r^2,$ group them in the following way:

$2r^2 + 3s^3 - r^2 + 4t^2 - r^2=2r^2-r^2-r^2+3s^3+4t^2=(2r^2-r^2-r^2)+3s^3+4t^2=$

$=r^2(2-1-1)+3s^3+4t^2=3s^3+4t^2.$

Then substitute s=-3 and t=5:

$3s^3+4t^2=3\cdot (-3)^3+4\cdot 5^2=3\cdot (-27)+4\cdot 25=-81+100=19.$

Answer: 19.

3 0

3 years ago

mario62 [17]

Answer:

(X+3)(x+2)(x-1)(x-30)

Step-by-step explanation:

Haven’t done this in a while so I may be incorrect but that’s factored form

6 0

3 years ago

Kitty [74]

The answer would be yes

7 0

3 years ago