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Mama L [17]
3 years ago
5

1.làm tính nhân -3x. (x^2+7x-1/3)

Mathematics
1 answer:
hoa [83]3 years ago
8 0

Answer:

-3 + 7x² x²

-1x + 6y x²

1x + 1y x²

2x - 2y

4x + 4y

20x

<h2>Helping</h2>
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Holding a ruler upright at arm’s distance (24 in.), Ronnie aligned the bottom of the ruler with a mark on the utility pole that
atroni [7]

Answer:

10 feet

Step-by-step explanation:

Drawing obviously not to scale but... Red segment is the ruler, at least the part between 5 and 6 inches, 1 inch long. Brown segment is the pole, ground to the top. Leftmost point is the eye, green line is the horizontal. The triangles are similar (AAA, the vertical lines are parallel), the ratio of the side is the same as the ratio of the heights. The height of the larger triangle (measured across the green line is

40 yd \times 3\frac{ft}{yd} \times 12\frac{in}{ft}= 1440''.

Ratio of the height is then 1440\div24 = 60.

At this point the height of the pole is 60 times the length of the measure on the ruler, or 60 inches, that is 5 feet. Add the 5 feet the pole was starting from, it's 10 feet.

4 0
2 years ago
Pleaseeee help me answer this!!! i will give brainliest!!
IrinaK [193]

Answer:

60 ft

Step-by-step explanation:

5 0
3 years ago
-2/2/5divided by -2/2/3
d1i1m1o1n [39]

Answer:

9/10

Step-by-step explanation:

to do this you would want to find a common denominator. then to divide fractions you would want to apply the keep change flip rule. keep the first fraction. change the division sign to multiplication and flip the fraction. then proceed to multiple. then you have your answer.

8 0
3 years ago
Read 2 more answers
Directions: Write &lt;&gt; or = between each pair of rational numbers
rodikova [14]

Answer:

-2 5/12 > -2 3/4

-92 < -15/16

Step-by-step explanation:

8 0
4 years ago
The value of a car decreases by 12% each year. what would be the annual decay factor or multiplier?
abruzzese [7]

Answer:

D.

Step-by-step explanation:

Since we're using exponential decay, the answer would have to be less than 1.00, already eliminating A, B, and C. 1.00 - .12 = .88, which proves that D is our answer. Hope this helped! If you could, please mark brainliest if it's right.

4 0
3 years ago
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