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Vlad1618 [11]
3 years ago
9

Express 5×-4y=20 in the form a×+by+c=0and write the value of a,band c​

Mathematics
1 answer:
finlep [7]3 years ago
4 0

Answer:

a = 5

b = -4

c = -20

Step-by-step explanation:

Here, we want to express the given equation in the following form;

So we can have this as;

5x-4y-20 = 0

That means we have;

a as 5

b as -4

and c as -20

You might be interested in
9 more than galls height is 50
frez [133]

Answer:

x+9=50

Step-by-step explanation:

to find galls height, it tells you to add 9. substitute “gall” for a variable. in this case, 9 is being added to the variable to equal 50.

3 0
3 years ago
A marketing researcher conducts a test to determine whether the number of chocolate chips per cookie differs significantly acros
Yuki888 [10]

Answer: the value for the associated test statistic is 1.2653

Step-by-step explanation:

Given that;

sample size one n₁ = 10

mean one x"₁ = 6.4

standard deviation one S₁ = 1.1

sample size two n₁ = 11

mean two x"₂ = 5.6

standard deviation one S₁ = 1.7

H₀ : μ₁ = μ₂

H₁ : μ₁ ≠ μ₂

Pooled Variance

sp = √( { [(n₁ - 1) × s₁² + (n₂ - 1) × s₂²] / (n₁ + n₂ - 2)} × (1/n₁ + 1/n₂))

we substitute

= √( { [(10 - 1) × (1.1)² + (11 - 1) × (1.7)²] / (10 + 11 - 2)} × (1/10 + 1/11))

= √( { [(9) × 1.21 + (10) × 2.89]  / (19) } × (0.1909))

= √({[ 39.79 ]  / 19} × (0.1909))  

= √( 2.0942 × 0.1909)

= √( 0.39978 )

= 0.63228

Now Test Statistics will be;

t = ( x"₁ - x"₂) / sp

we substitute

t = ( 6.4 - 5.6) / 0.63228

t = 0.8 / 0.63228

t = 1.2653

Therefore the value for the associated test statistic is 1.2653

5 0
3 years ago
What is the value of the expression below when z = • 3?<br> 622 + 2z + 10
inn [45]

Answer:

632.6

Step-by-step explanation:

Z = .3 right? It looks weird on my screen

Anyway, if z is .3 than this is how to solve

First you plug in 0.3 where the z would go, making the expression 622 + 2(0.3) + 10. Then you solve! (below)

622 + 2(0.3) + 10.

622 + 0.6 + 10.

622 + 10 + 0.6

632 + 0.6

632.6

I hope this helped! If you have any questions, feel free to message me :)

3 0
3 years ago
A path of 0.5 meter wide runs round within a square garden of side 15 m.Find it's perimeter ?<br>​
azamat

Answer:

:))

Step-by-step explanation:

7 0
2 years ago
Update:
ohaa [14]

Answer:

Love vines!

Step-by-step explanation:

But vine left us while getting milk. And tick tock is like our step father that we've grew to love :)

4 0
3 years ago
Read 2 more answers
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