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3 years ago

How to solve 2x-5+3a-5x+10a for combining like terms

Mathematics

1 answer:

vladimir1956 [14]3 years ago

7 0

2x -5x
3a + 10a
And -5
Combine and you get:

-3x + 13a - 5

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Bradley walks 0.65 mile each Friday to his friends house. He takes a different route home that is 1.2 miles. How many miles will

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Answer:

96.2

Step-by-step explanation:

1. 0.65 +1.2 =1.85

2. 1.85*52=96.2

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2 years ago

Use compass directions to describe the Direction of a vector. The diagram is not drawn to scale

vekshin1

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3 years ago

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Find the length of diagonal HJ. Round to the nearest hundredth.

Alisiya [41]

Answer:

The length of the diagonal HJ is 10.82 units

Step-by-step explanation:

* Lets revise the rule of the distance between two points

- $d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$ , where

$(x_{1},y_{1})$ and $(x_{2},y_{2})$ are the two points

* Lets use this rule to find the length of the diagonal HJ

∵ The coordinates of point H are (-4 , 3)

∵ The coordinates of point J are (5 , -3)

∴ $x_{1}=-4$ and $x_{2}=5$

∴ $y_{1}=3$ and $y_{2}=-3$

- Lets find the length of the diagonal HJ by using the rule above

∴ HJ = $\sqrt{(5-(-4))^{2}+(-3-3)^{2}}=\sqrt{(5+4)^{2}+(-6)^{2}}$

∴ HJ = $\sqrt{(9)^{2}+36}=\sqrt{81+36}=\sqrt{117}=10.81665$

∴ HJ = 10.82

* The length of the diagonal HJ is 10.82 units

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2 years ago

Where is 10 in the real number system

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10 / 1 is a rational and which is equal to 10 so 10 is also a rational number

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2 years ago

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Answer:

Step-by-step explanation:

70 * 8 = 560, not 490

Instead, 70 * 7 = 490

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