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malfutka [58]
3 years ago
9

Can someone help me solve this? this is hard can someone tell me how to find the correct answer?

Mathematics
1 answer:
Nana76 [90]3 years ago
7 0

Answer:

z=11

Step-by-step explanation:

(z-1)/10=(z+1)/12

cross multiple

12z-12=10z+10

2z=22

z=11

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Clare volunteers at a local library during the summer. Her work includes putting labels on 750 books. How many minutes will she
Lubov Fominskaja [6]

Answer:

75 minutes

Step-by-step explanation:

Assuming that Clare will not take a break throughout the session

10 books=1 minute

750 books= x minutes

Cross multiplying to find the value of x

10x books=750 books minutes

Making x the subject

x=750 books minutes/(10 books)

x=75 minutes

This translates to 1 hours and 15 minutes

Therefore, Clare will require 75 minutes

5 0
3 years ago
Solve A=1/2bh for h.
GREYUIT [131]

Answer:

h = 2A/b

Step-by-step explanation:

Step 1: Write out triangle formula

A = 1/2bh

Step 2: Multiply 2 on both sides to get rid of fraction

2A = bh

Step 3: Divide both sides by <em>b</em> to isolate <em>h</em>

2A/b = h

Step 4: Rearrange

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5 0
3 years ago
Is a || b ? Explain with angle measurements
pentagon [3]

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

Explanation:

We are given that line p is parallel to line q, which means angle 9 = angle 6 as they are alternate interior angles.

So angle 6 is 110 degrees. But this clashes with angle 8 being different at 70 degrees. Angles 6 and 8 must be congruent if we wanted lines 'a' and b to be parallel. Angles 6 and 8 are corresponding angles.

7 0
2 years ago
How do you factor x^4-(4x-5)^2
koban [17]
The answer would be (x-1)(x+5)(x^2-4x+5)
7 0
3 years ago
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8 0
3 years ago
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