Answer:
x = 7 and x = -1
Step-by-step explanation:
<u>Step 1: Factor</u>
x^2 - 6x - 7 = 0
(x - 7)(x + 1) = 0
<u>Step 2: Solve for x</u>
(x - 7)(x + 1) = 0
x - 7 = 0 and x + 1 = 0
x - 7 + 7 = 0 + 7 and x + 1 - 1 = 0 - 1
x = 7 and x = -1
Answer: x = 7 and x = -1
Answer:
A
Step-by-step explanation:
look it carefully.
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Find 5 days :
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1 day = 1.5km
5 days = 1.5 x 5 = 7.5 km
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Convert km to m
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1 km = 1000 m
7.5km = 7.5 x 1000
7.5 km = 7500 m
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Answer: She walked 7500 m
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Step-by-step explanation:
1. 2(d+9)
2(8+9)
2(17)
=34
2. d÷4
8÷4
=2
3. ef÷4
(3×4)÷4
12÷4
=3
4. 4f+d
(4×4)+8
16+8 =24
5. (5d-25)÷5
((5×8)-25)÷5
(40-25)÷5
15÷5 = 3
6. d2+7
(8×8) +7
64+7
=71
