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Monica [59]
3 years ago
13

Identify the operation of the expression (3d^2+8d-2)+(2d^2-7d+6)(3d

Mathematics
1 answer:
Strike441 [17]3 years ago
3 0

Answer:

2

Step-by-step explanation:

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A.1.5
telo118 [61]

Answer:

x=50 y=10

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the answer for 65=2(d+1)+5d?
vladimir1956 [14]

65 = 2(d + 1) + 5d
65 = 2d + 2 + 5d
65 = 7d + 2
63 = 7d
Finally divide by 7.
d = 63 \div 7 = 9
Hence, the answer is d = 9



5 0
3 years ago
A hexagonal pyramid is cut by a plane as shown in the diagram. What is the shape of the resulting cross section? see diagram
Alenkasestr [34]

From the diagram you can see that plane cuts each lateral face of hexagonal pyramid and do not cut the base. A hexagonal pyramid has six lateral faces. The intersection of each of these lateral faces with given cutting plane is segment. The figure which consists of these segments is hexagon. This hexagon is not the same as base and even is not similar to the base because the cutting plane is not parallel to the base.

Answer: resulting cross section is a hexagon, correct choice is option 4.

9 0
4 years ago
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Which ratio can be used to form a proportion with the given ratio? 3 to 4
quester [9]

As soon as I see the word "Which ...", I know that there's a list of choices that
goes along with this question, but you decided not to share them.  So there's
no way for me to help you choose the correct one.

In order to form a proportion with 3/4, you need another fraction (or ratio) that's
equal to 3/4 .  Look for a fraction whose numerator is 3/4 of its denominator. 

Here are a few examples:

-- 6 / 8
-- 24 / 32
-- 300 / 400
-- 12 million / 16 million
-- 3x / 4x
-- 15abc / 20abc
-- 3(x+y+z) / 4(x+y+z)


6 0
3 years ago
Which expression is equivalent to 9^-2?<br> –81<br> –18<br> 1/81<br> 1/18
Kaylis [27]
(9)^-2 = (1/9)^2 = 1/81

5 0
3 years ago
Read 2 more answers
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