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kirill [66]
3 years ago
7

Add: -14/15+10/21 give your answer as a reduced fraction

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
6 0

Answer:

-16/35

Step-by-step explanation:

To know tha answer for this, you have to find the prime factor of 15 and 21:

Prime factor of 15: 3, 5

Prime factor of 21: 3, 7

Therefore, the LCD (least common denominator) of 15 and 21 are: 3 * 5 * 7 = 105

-14/15+10/21  

= -14*7/15*7 + 10*5 / 21*5

= -98/105 + 50/105

= -48/105

Simplify:

= -16/35

Hope this help you :3

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I will choose the Brainliest, please help.
VMariaS [17]

Answer:

  • 45°
  • 4 units

Step-by-step explanation:

Rotation changes nothing about the geometric relationships within the figure. Angle measures are unchanged; side lengths are unchanged.

The acute angles of an isosceles right triangle are (180° -90°)/2 = 45°. This is true regardless of the orientation of the triangle with respect to any coordinate axes.

The measures of the legs of your triangle are 0 -(-4) = 4 = (1 - (-3)). Rotating the figure any amount in any direction around any center doesn't change that.

4 0
4 years ago
Evalue 5a+3b and (5+a)(3+b) for a=2 and b=4. How is the order of steps diferent for the two expression
galben [10]
5a+3b = 24 
(5+a)(3+b) = 49 

The order of steps are different because one requires multiplication then addition while the other one requires addition then multiplication. But one sure thing is that they both need substitution. 
7 0
3 years ago
Compare and contrast the 3 triangle congruency ASA, AAS and SAS.
Serhud [2]

Answer:

ASA and AAS are two postulates that help us determine if two triangles are congruent. ASA stands for “Angle, Side, Angle”, while AAS means “Angle, Angle, Side”. ... ASA refers to any two angles and the included side, whereas AAS refers to the two corresponding angles and the non-included side

Step-by-step explanation:

3 0
3 years ago
If G^-1(x) is the inverse of G(x), what is the value of G^-1(G(x))?
Ber [7]

Answer:

G^{-1}(G(x))=x

Step-by-step explanation:

Definition: Let f be one-to-one function with the domain A and  the range B. Then the inverse function f^{-1} has the domain B and the range A and is defined as

f^{-1}(y)=x\ \Leftrightarrow \ f(x)=y

Facts:

1) For every x\in A:

f^{-1}(f(x))=x

2) For every y\in B:

f(f^{-1}(y))=y

So, G^{-1}(G(x))=x

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4 years ago
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Answer:

Hi,

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L = 4.9

We can say x^2 = 24

And the length of one side is therefore 4.9

8 0
3 years ago
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