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bija089 [108]
3 years ago
9

Choose the like terms 3x, y, 2x

Mathematics
2 answers:
maxonik [38]3 years ago
8 0
3x and 2x are like terms since they have the same variables. They can also be added up to give 5x
uysha [10]3 years ago
8 0

Answer:

3x\text{ and }2x

Step-by-step explanation:

We have been given three terms. We are asked to choose the like terms.

We know that two terms are known as like terms, when they have the same variables and same powers.

In our given terms 3x,y,2x, we can see that 3x\text{ and }2x share the same variable that is x and it is raised to first power, therefore, 3x\text{ and }2x are like terms.

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i think its congruency

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3 years ago
Use the figure to find the length HJ. Assume △DEF ≅ △GHJ.<br> *I GOT 30*
solniwko [45]
Yes, HJ = 30 ft.

It tells us that triangle DEF = triangle GHJ.

By seeing this we know without looking at the triangles that EF is going to be the same as HJ because when they say a figure is the same as another and list the letters such as 'DEF' and 'GHJ' they will list them in the same order.

So

'DEF' = 'GHJ' we get:

'DE' = 'GH'

'EF' = 'HJ'

And we can do the last and first letters:

'FD' = 'JG'

And since we know 'EF' = 'HJ' and that they already told us 'EF' was 30, we know HJ will be 30.
5 0
3 years ago
Solve the right triangle shown in the figure BC = 1.6in&lt; A=48.8 C =90
yKpoI14uk [10]
Drawing a diagram to represent the information you've given, the only angle we are missing is B.  We can find that by subtracting the two we're given from 180:
180 - 90 - 48.8 = 41.2
<em>m</em>∠<em>B</em> = 41.2°.
We can use the angles and the one side we're given to find the remaining sides.  Since we do not know the length of the hypotenuse, AB, we cannot use sine or cosine.  We must use tangent (the ratio for tangent is opposite/adjacent):
\tan 41.2 = \frac{x}{1.6}
Multiply both sides by 1.6:
1.6 \tan 41.2 = x&#10;\\ 3.67 = x
This is the length of side AC, which is opposite to angle B.
To find the length of AB we can use the Pythagorean Theorem:
(1.6)^2+(3.67)^2=c^2&#10;\\ 2.56+13.4689=c^2&#10;\\ 16.0289=c^2&#10;\\ \sqrt{16.0289} = \sqrt{c^2}&#10;\\ 4=c
The length of side AC, the hypotenuse, is 4 inches.
3 0
3 years ago
Read 2 more answers
An open top box is formed by cutting squares out of a 5 inch by 7 inch piece of paper and then folding up the sides. The volume
Radda [10]

Answer:

V(x) = 4x^3  - 24x^2+35x

Step-by-step explanation:

Given

V(x) = (7 - 2x)(5 - 2x)(x)

Required

Expand the expression

V(x) = (7 - 2x)(5 - 2x)x

Expand bracket

V(x) = (7 - 2x)(5 * x - 2x * x)

V(x) = (7 - 2x)(5x - 2x^2)

Further expand bracket

V(x) = 7(5x - 2x^2) - 2x(5x - 2x^2)

V(x) = 35x - 14x^2 - 10x^2 + 4x^3

V(x) = 35x - 24x^2 + 4x^3

V(x) = 4x^3  - 24x^2+35x

7 0
3 years ago
Jacob bought a ring for $17, a necklace for $32, and a bracelet for $53. He paid $9.18 in tax for the purchase. What percent of
natali 33 [55]

Answer:

9%

Step-by-step :

9.18 divided by 102 which is the total for everything he bought is .09 which is 9%

5 0
3 years ago
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