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Zinaida [17]
3 years ago
15

Anwer pls pls pls the correct​

Mathematics
2 answers:
navik [9.2K]3 years ago
7 0

Answer:

2.5, - 1200

Step-by-step explanation:

(a)

Substitute the given values into the expression

\frac{2a}{c} = \frac{2(-5)}{-4} = \frac{-10}{-4} = \frac{10}{4} = \frac{5}{2} = 2.5

(b)

2a × b × 5c

= 10abc

= 10 × - 5 × - 6 × - 4

= - 50 × 24

= - 1200

fomenos3 years ago
5 0

Answer:

a)2.5 b)-1200

Step-by-step explanation:

a)2(-5)/4=-10/-4=5/2=2.5

b)2(-5)×(-6)×5(-4)=-10×-6×-20=-1200

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What is 6 divide by 5
lara31 [8.8K]
Hey there!

6 divided by 5 = 1.2


Hope this helps!
Have a great day! (:
7 0
3 years ago
Solve the equations<br>Y=2x-4, 3x+y=1​
liberstina [14]

Step-by-step explanation:

y = 2x - 4

3x + y = 1

y = 1 - 3x

Equating,

2x - 4 = 1 - 3x

2x + 3x =  1 + 4

5x = 5

x = 1

Placing it,

y = 1 - 3(  1)

y = 1 - 3

y =  - 2

6 0
3 years ago
I need help with this please asap
Alex

Step-by-step explanation:

We can prove that the triangles are congruent using the SAS method.

It's given that GH and JH are congruent (S)

Angle GHF and Angle IHJ are equal since they are vertically opposite (A)

It's given that FH and HI are congruent (S)

Thus, the triangles are congruent, which implies that the remaining sides are equal.

6 0
3 years ago
71 ×10 ^ 3 Scientific Notation​
kap26 [50]

Answer:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 1010. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

7.1×1047.1×104

7 0
3 years ago
What is the solution to the system of equations? {10x^2 - y = 48 2y = 16x^2 + 48
julsineya [31]
A graph shows the solutions to be
  (x, y) = (-6, 312) or (6, 312)


To solve algebraically, remove a factor of 2 from the second equation and use that expression to substitute for y in the first equation.
  10x^2 -(8x^2 +24) = 48
  2x^2 = 72
  x = ±√(72/2) = ±6
  y = 8*36 +24 = 312

6 0
3 years ago
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