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UkoKoshka [18]
3 years ago
9

which answer choice explains the pattern for how to find the slope using an equation in standard form?

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
7 0

Question is using standard formula ax+by=c to find the slope by converting into slope intercept form y=mx+b

so we also need to convert ax+by=c into y=mx+b as shown below:

ax+by=c

ax+by-ax=c-ax

by=-ax+c

divide both sides by

y=-\frac{a}{b}x+\frac{c}{b}

Now compare it with y=mx+b, we get

m=-\frac{a}{b}

So using values of a and b, we can find the slope


compare given equation -5x+2y=15 with ax+by=c, we get:

a=-5, b=2

Now plug both into above formula

m=-\frac{a}{b}

m=-\frac{-5}{2}

m=\frac{5}{2}


Now matching these details with given choices we find that THIRD choice is the final answer.

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Can you guy's help me quick!
nadya68 [22]

Answer:

480,700 sets (first choice)

Step-by-step explanation:

If all 25 questions are different,

When order of selection counts:

P(25,7)

= 25!/(25-7)!

= 15511210043330985984000000/6402373705728000

= 2422728000

When order of selection does not count count:

C(25,7)

=25!/(7!*(25-7)!)

=15511210043330985984000000/(6402373705728000*5040)

= 480,700

Hope this helps, have a nice day.

6 0
3 years ago
Greg earns $14 per hour at his office job, along with a $25 weekly bonus. The following inequality represents his earnings on hi
Neporo4naja [7]

Answer:

Greg worked more than 20 hours.

Step-by-step explanation:

Let's solve the inequality for h so we know how many hours Greg worked:

Step 1. Subtract 25 from both sides of the inequality

14h+25>305

14h+25-25>305-25

14h>280

Step 2. Divide both sides by 14

\frac{14h}{14} >\frac{280}{14}

h>20

We can conclude that Greg worked more than 20 hours.

3 0
3 years ago
Please ' help me I need it please I'm begging you
vazorg [7]

Answer: 0.75 (choice B)

=============================================

Explanation:

One way to set up the equation is to think of it like this

vertical/horizontal = vertical/horizontal

So we could say

(3.5)/(28) = x/6

Cross multiply and solve for x

3.5*6 = 28*x

21 = 28x

x = 21/28

x = (3*7)/(4*7)

x = 3/4 in fraction form

x = 0.75 in decimal form

-------------

Another possible set up equation is

28/6 = (3.5)/x

in this case I divided the horizontal sides together (28 and 6) and the vertical sides divide to form their own separate fraction as well.

Solving that equation should lead you to x = 3/4 = 0.75

Other equations are possible.

8 0
2 years ago
#6) BRAINLIEST + 10 + POINTS! :D
kumpel [21]

Answer:

B

Step-by-step explanation:

Notice that if we divide our given equation (2x - 4 = 6) by 2 from both sides, we get:

(2/2)x - (4/2) = (6/2)

x - 2 = 3

Now, notice what happens if we multiply this by -3:

-3 * (x - 2) = 3 * (-3)

-3 * x + (-3) * (-2) = -9

-3x + 6 = -9

This matches B.

Hope this helps!

4 0
3 years ago
Write a function (equation) that can be used to find the relationship between x and y.
Andreas93 [3]
I think it would be y = -3x +2
8 0
3 years ago
Read 2 more answers
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