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ki77a [65]
3 years ago
7

What is the y-intercept of the line described by the equation below? y = 4x-9

Mathematics
1 answer:
VladimirAG [237]3 years ago
7 0
Y=mx+b
M is the slope
B is the y intercept
In this case 4 is the slope and -9 is the y intercept
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How do i factor 2x^2+11x+5
ira [324]
For simple integer factors as this one has, you want to find two values for the quadratic in the form ax^2+bx+c.   Let the two values be j and k.  These two values must satisfy two conditions.

jk=ac=10 and j+k=b=11, so j and k must be 1 and 10.

Now replace bx with jx and kx...

2x^2+x+10x+5  now factor 1st and 2nd pair of terms.

x(2x+1)+5(2x+1)

(x+5)(2x+1)
7 0
3 years ago
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Peter bought 8 lemons for $6 .each lemon was the same price .what was the cost for 1 lemon
Triss [41]

Answer:

0.75 or 75 cents!

Hope this helps!

5 0
2 years ago
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2. Calculate the total cost, including 5.75% sales tax, of a $169.99
8_murik_8 [283]

Answer:

$179.76

Step-by-step explanation:

We can calculate the total cost as follows.  The 1.00 represents the before-tax cost of the dehumidifier and the 0.0575 the 5.75% sales tax:

Total cost of dehumidifier = (1.00+0.0575)($169.99) = $179.76 (to the nearest

                                                                                                                     cent()

7 0
3 years ago
What is Start Fraction 5 Over 8 End Fraction divided by One-fourth?
Archy [21]

Answer:

2.5

Step-by-step explanation:

5/8 ÷ 1/4

Division sign changes to multiplication and the reciprocal of the divisior is used to multiply instead :

5/8 * 4/1

= (5*4) / (8*1)

= 20 / 8

= 2.5

3 0
2 years ago
Find the value of the variable using these steps.
Aleks [24]
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0.4x+3.9-3.9=5.78-3.9

0.4x=1.88 ⇒ Divide both sides by 0.4

\frac{0.4x}{0.4}= \frac{1.88}{0.4}

x=4.7
4 0
3 years ago
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