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Anton [14]
3 years ago
12

Factor the expression x^2-x-42

Mathematics
1 answer:
prohojiy [21]3 years ago
7 0
Yay! Quadratics!


-42 has two factors that sum up to -1. -7 and 6.

So then it becomes, (x-7)(x+6) 
Check it using FOIL.




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Then each week thereafter, you add $5 to the account but no interest is earned. Suppose you receive $100 for a graduation presen
irga5000 [103]
100 + 5x = y

100 +5x = 310
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3 years ago
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Ivan and Tanya share £150 in the ratio 4: 1<br> Work out how much more Ivan gets compared to Tanya.
Dennis_Churaev [7]
Ivan gets £112.5(0) more than Tanya
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2 years ago
Prestige car rentals charge $44 per day plus 6 cents per mile to rent a mid sized vehicle. Gateway auto charges $35 per day plus
bulgar [2K]

Answer:

300 miles

Step-by-step explanation:

Let

x ----> the number of miles

y ----> the total cost for rent a car

we know that

The equation of the line in slope intercept form is equal to

y=mx+b

where

m is the slope or unit rate

b is the y-intercept or initial value

<u><em>Prestige car rentals</em></u>

we have that

The slope is equal to m=\$0.06\ per\ mile

The y-intercept is b=\$44

therefore

y=0.06x+44 -----> equation A

<u><em>Gateway auto</em></u>

we have that

The slope is equal to m=\$0.09\ per\ mile

The y-intercept is b=\$35

therefore

y=0.09x+35 -----> equation B

For what number of miles both companies charge the same price>

Equate equation A and equation B

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solve for x

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6 0
3 years ago
Can someone please help me with this question pretty pls :(((??????
Charra [1.4K]

let me know if the propositions they gave don't match with mine.

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4 0
3 years ago
Find the total surface area of a cuboidal room whose
denpristay [2]

Answer:

174cm^2

Step-by-step explanation:

Given data

L=9m

W=5m

H=3m

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SA=2lw+2lh+2hw

substitute

SA=2*9*5+2*9*3+2*3*5

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SA= 174cm^2

Hence the surface area is 174cm^2

8 0
3 years ago
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