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3 years ago

Which statements about opposites are true?

Mathematics

1 answer:

Naily [24]3 years ago

5 0

Answer:

I think B and C are the only ones true

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What are the solutions to the equation? 3x2+6x=45

daser333 [38]

Answer:

x = 3, -5

Step-by-step explanation:

hope this helps plz give brainiest

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3 years ago

When converting, if you go from a larger unit to a smaller unit you will _____________. Divide Multiply Subtract Add

Lyrx [107]

Answer:

Dividing or Subtracting

Step-by-step explanation:

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3 years ago

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A play tent is shown.how much fabric was used to make the front(Base 1=36.5) (Base 2=23). And the height =32

xxMikexx [17]

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4 years ago

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For vector A = 5 i hat + 3 j - 4 k, vector B = - 5 i hat + 5 j + k, and vector C = 2 j - 3 k, find vector C· (vector A - vector

timama [110]

Answer:

The value of $\overrightarrow {C}\cdot (\overrightarrow {A}-\overrightarrow {B})$ in three significant figures is 11.0.

Step-by-step explanation:

The given vectors are

$\overrightarrow A=5i+3j-4k$

$\overrightarrow B=-5i+5j+k$

$\overrightarrow C=2j-3k$

We need to find the value of $\overrightarrow {C}\cdot (\overrightarrow {A}-\overrightarrow {B})$

Subtraction of two vectors.

$\overrightarrow {A}-\overrightarrow {B}=5i+3j-4k-(-5i+5j+k)$

$\overrightarrow {A}-\overrightarrow {B}=5i+3j-4k+5i-5j-k$

$\overrightarrow {A}-\overrightarrow {B}=(5+5)i+(3-5)j+(-4-1)k$

$\overrightarrow {A}-\overrightarrow {B}=10i-2j-5k$

Dot product of two vectors.

$\overrightarrow {C}\cdot (\overrightarrow {A}-\overrightarrow {B})=(2j-3k)\cdot (10i-2j-5k)$

$\overrightarrow {C}\cdot (\overrightarrow {A}-\overrightarrow {B})=(0)(10)+(2)(-2)+(-3)(-5)$

$\overrightarrow {C}\cdot (\overrightarrow {A}-\overrightarrow {B})=-4+15=11$

Therefore, the value of $\overrightarrow {C}\cdot (\overrightarrow {A}-\overrightarrow {B})$ in three significant figures is 11.0.

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4 years ago

*please be serious* 2x-3y = - 18 *solve for y*

makkiz [27]

Answer:

y = 6+ 2x/3

Step-by-step explanation:

brainiest pls

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3 years ago

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