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Zina [86]
3 years ago
7

PLS HELP ASAP

Mathematics
1 answer:
zvonat [6]3 years ago
3 0

Answer:

 

Step-by-step explanation:

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i have two solid shapes i can join them together to form a new shape that has nine faces 16 edges and nine vertices​
BARSIC [14]
2+2=3
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3 years ago
On a number line, what is the distance between -8 and -2?
Harrizon [31]

Answer:

6 units

Step-by-step explanation:

Distance between two points on the number lines, the difference between the absolute values.

I-8 I - I - 2I = 8 - 2 = 6

6 0
3 years ago
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Find the projection of the vector A = î - 2ġ + k on the vector B = 4 i - 4ſ + 7k. 15. Given the vectors A = 2 i +3 ſ +6k and B =
Gwar [14]

Answer:

Part 1)

Projection of vector A on vector B equals 19 units

Part 2)

Projection of vector B' on vector A' equals 35 units

Step-by-step explanation:

For 2 vectors A and B the projection of A on B is given by the vector dot product of vector A and B

Given

\overrightarrow{v_{a}}=\widehat{i}-2\widehat{j}+\widehat{k}

Similarly vector B is written as

\overrightarrow{v_{b}}=4\widehat{i}-4\widehat{j}+7\widehat{k}

Thus the vector dot product of the 2 vectors is obtained as

\overrightarrow{v_{a}}\cdot \overrightarrow{v_{b}}=(\widehat{i}-2\widehat{j}+\widehat{k})\cdot (4\widehat{i}-4\widehat{j}+7\widehat{k})\\\\\overrightarrow{v_{a}}\cdot \overrightarrow{v_{b}}=1\cdot 4+2\cdot 4+1\cdot 7=19

Part 2)

Given vector A' as

\overrightarrow{v_{a'}}=2\widehat{i}+3\widehat{j}+6\widehat{k}

Similarly vector B' is written as

\overrightarrow{v_{b'}}=\widehat{i}+5\widehat{j}+3\widehat{k}

Thus the vector dot product of the 2 vectors is obtained as

\overrightarrow{v_{b'}}\cdot \overrightarrow{v_{a'}}=(\widehat{i}+5\widehat{j}+3\widehat{k})\cdot (2\widehat{i}+3\widehat{j}+6\widehat{k})\\\\\overrightarrow{v_{a'}}\cdot \overrightarrow{v_{b'}}=1\cdot 2+5\cdot 3+3\cdot 6=35

7 0
4 years ago
Help me plez the question is on the picture
konstantin123 [22]

Answer:

2 x 5 x 5 x 5 x 5

Step-by-step explanation:

Since it is stated 2 times  5 to the power of 4, then we would write it out as:

2 x 5 x 5 x 5 x 5

3 0
3 years ago
Read 2 more answers
Which of the following correctly describes the graph of this function?
irinina [24]

Answer:

A. The graph of the function increases and decreases over its domain.

Step-by-step explanation:

The graph is attached. Some places, it has positive slope (is increasing); other places it has negative slope (is decreasing).

3 0
3 years ago
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