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solmaris [256]
3 years ago
11

X = [?] 3x + 2 + 6x + -20

Mathematics
1 answer:
Helen [10]3 years ago
6 0

Answer:

9x−18

Step-by-step explanation:

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A cubic inch of gold weighs 316 grams. How much does a cubic centimeter of gold weigh????? Help!!!!!!
Ainat [17]
Grams measure mass while cubic centimetres measure volume? so you can't convert the two?
8 0
3 years ago
What is the domain of the function f(x)= sqrt 9x
Vikentia [17]

Answer:

all positive numbers

Step-by-step explanation:

The domain is all of the possible x coordinates. Since we are doing a square root, the answer can't be negative, so if we are multiplying x by a positive number, x can't be negative. All other numbers would work.

7 0
3 years ago
The volumes of two similar square pyramids is 128 and 250 meters respectively. The side length of the smaller pyramid is 8 meter
Yuliya22 [10]

Answer:

Height of bigger square pyramid = 3.072 meter

Step-by-step explanation:

Using equivalent ratios to find the side of the bigger square prism

128:8 = 250:X

X = (250 x 8) ÷ 128 = 15.625

Volume of a square pyramid = a x a x h/3

Hence to evaluate the height

250 = 15.625 x 15.625 x h/3

H = 3.072 meters

6 0
3 years ago
Which pair of measurements is not equivalent? 24 feet, 8 yards 24 inches, 2 feet 10 feet, 120 inches 3 miles, 15,480 feet
Kisachek [45]
12,480 feet is not equal to three miles
7 0
3 years ago
The average value of y=v(x) equals 4 for 1≤x≤6, and equals 5 for 6≤x≤8. what is the average value of v(x) for 1≤x≤8 ?
Tomtit [17]
The average value over the interval is the area under the curve divided by the width of the interval.

Area = 4*(6 -1) +5(8 -6) = 30
Width = 8 - 1 = 7

Average value = 30/7 = 4 2/7

7 0
3 years ago
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