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Mkey [24]
3 years ago
8

I need help on these questions​

Mathematics
1 answer:
lilavasa [31]3 years ago
3 0

Answer:

9. m = -3

11. m = 1

13. m = \frac{3}{5}

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What are these equation answers:<br> * 4x+2y=10<br> * 3x+2=6y
guajiro [1.7K]

Answer:

1 Factor out the common term 22.

2(2x+y)=102(2x+y)=10

2 Divide both sides by 22.

2x+y=\frac{10}{2}2x+y=

​2

​

​10

​​

3 Simplify  \frac{10}{2}

​2

​

​10

​​   to  55.

2x+y=52x+y=5

4 Subtract yy from both sides.

2x=5-y2x=5−y

5 Divide both sides by 22.

x=\frac{5-y}{2}x=

​2

​

​5−y

​​

Step-by-step explanation:

1 Factor out the common term 22.

2(2x+y)=102(2x+y)=10

2 Divide both sides by 22.

2x+y=\frac{10}{2}2x+y=

​2

​

​10

​​

3 Simplify  \frac{10}{2}

​2

​

​10

​​   to  55.

2x+y=52x+y=5

4 Subtract yy from both sides.

2x=5-y2x=5−y

5 Divide both sides by 22.

x=\frac{5-y}{2}x=

​2

​

​5−y

​​

3 0
3 years ago
Find the area of a triangle formed by placing the vectors [3, 6] and [7, 1] tail-to-tail.
Usimov [2.4K]

Answer:

a. A=10u^{2}

b. View graph

c. 6.40u

Step-by-step explanation:

knowing that the triangle area is equal to base by heigh between two, then:

A=\frac{bh}{2}=\frac{5*4}{2}=10u^{2}

The length of the longest altitude of your triangle is:

c^{2}=a^{2}+b^{2}=5^{2}+4^{2}=25+16=41\\    c=\sqrt{41}=6.40u

finally it can be seen that the position of the triangle does not matter, as long as the base and heigh are maintained, the area of ​​the triangle will be the same

6 0
4 years ago
i bought a box of chips worth $12.98, there are 30 bags of chips in the box. How much is 1 bag of chips worth ? please help
charle [14.2K]

Answer:

$0.44

Step-by-step explanation:

12.98/30 is 0.4326666

Rounded to the nearest cent is $0.44

5 0
3 years ago
What is the difference of the rational expressions below? 13x/5 - 4x/5
salantis [7]
<span>13x/5 - 4x/5
</span> What you must do in this case is a sum of fractions.
 Step 1:
 Common factor 5 in the denominator
 Step 2:
 Perform subtraction of numerator
 Step 3:
 Rewrite the expression.
 See attached image.
 Answer:
 a. 9x/5

7 0
3 years ago
Read 2 more answers
For any two documents x and z, define k(x; z) to equal the number of unique words that occur in both x and z (i.e., the size of
liq [111]

Answer:

Yes, the function is a kernel

Step-by-step explanation:

Given

Document x an z

Function definition! k(x:z)

We want to show that the above is a kernel.

To do this, we'll explicitly construct feature vectors φ(x) and φ(z)

This gives;

K(x,z) =φ(x)·φ(z).

Given than any document; say x and z

A vocabulary V can be constructed.

Vocabulary V must have a finite size of words in the document set..

The feature mapping is constructed as φ(x) for x by the following:

For the kth word wk in V, if wk appears in document x, assign φ(x) k(the kth element ofφ(x)) to be 1; else φ(x)k to 0.

Then the number of unique words common in x and z is φ(x)·φ(z), giving us the kernel

.

7 0
3 years ago
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