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Veronika [31]
3 years ago
6

Select True or False.

Mathematics
2 answers:
Vlad1618 [11]3 years ago
8 0

Answer:

true

Step-by-step explanation:

3x -4(2x-5)

3x-8x+20

5x+20

nikdorinn [45]3 years ago
5 0

Answer:

true

Step-by-step explanation:

3x - 4(2x - 5) = \\  3x - 8x + 20 =  \\  - 5x + 20 =  \\ 20 - 5x =  >  \: true

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Please check my answer : Find the equation of the line that has a slope of 8 and passes through the point (-3,4). I got y=8x-20
Paladinen [302]
The answer is y = -8x - 20. If you were to use y = 8x - 20 then you'd get 4 = -44, which, obviously, is not true. To fix it all you need to do is add a negative sign in front of the 8. y = -8x - 20.
7 0
3 years ago
Which one express a ratio between 3/4, 3:4, 3 of 4 , 3 to 4
Alex777 [14]

Answer:

3/4, 3:4, 3 to 4

Step-by-step explanation:

5 0
2 years ago
If t varies 1/s and t=2 when s=60 find the relationship between t and s, b, find the value of t when s=90 c, find s when t=2,1/2
suter [353]

Answer:

t = k \frac{1}{s}  \\ 2 = k. \frac{1}{60} \\ k = 120 \\ k \:  \: is \: constant \: of \: variation \\ relationship \: is  \\ t =  \frac{120}{s} . \\ when \: s \:  = 90 \\ t =  \frac{120}{90}  \\ t =  \frac{4}{3}  \\ when \: t = 2 \frac{1}{2}  \\ s =  \frac{120}{2 \frac{1}{2} }  \\ s = 48

4 0
3 years ago
each year a tree grows 26 cm. after 4.5 years the tree is 292 cm. how tall was the tree when he moved into the house
jeka57 [31]
26×4=104
292-104=188
26÷2=13
188-13=175cm

the tree was 175cm when he moved in
7 0
3 years ago
Solve 5x(m+n) using the distributive property
Genrish500 [490]

Answer: 5xm+5xn

Step-by-step explanation:

For this exercise it is necessary to remember the following:

1) The Distributive Property states the following:

a(b+c)=ab+ac\\\\a(b-c)=ab-ac

2) The multiplication of signs:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-

Knowing this, and having the following expression given in the exercise:

5x(m+n)

You can apply the Distributive property multiplying m and n, which are inside the parentheses, by 5x.

So, you get the following result:

=(5x)(m)+(5x)(n)=5xm+5xn

4 0
3 years ago
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