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Sliva [168]
3 years ago
13

Find the value of Z. A)7 B)9 C)11 D)12

Mathematics
2 answers:
Gala2k [10]3 years ago
4 0
As per the isosceles triangle theorem, if the two base angles are congruent then the legs are also congruent, so we must set the two legs equal to each other:

2z - 15 = 9

Add 15 to both sides:

15 - 15 = 0
15 + 9 = 24

Divide 2 from each side:

2z = 24

2z/2 = z

24/2 = 12

z = 12

Hence, the answer would be D: z = 12

arlik [135]3 years ago
4 0

2z-15=9\\2z=24\\z=12

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A total of 907 went to a fishing tournament. Of these people, 626 arrived before noon. Alina estimates that fewer that 300 peopl
larisa [96]
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Misha Larkins [42]
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8 0
3 years ago
Aaron has a triathlon. Sunday he bikes 12 5/8 miles and swims 5 2/3 miles. Monday, he runs 6 3/8 miles. How many total miles Aar
Alla [95]
Let’s put these into one fraction each:

Biking:
= (12*5)/8 miles
= 60/8 miles
This can be reduced to,
= 15/2 miles

Swimming:
= (5*2)/3 miles
= 10/3 miles

Running:
= (6*3)/8 miles
= 18/8 miles
This can be reduced to,
= 9/4

Now we add all the distances up:
= (15/2) + (10/3) + (9/4)

Now we just can add the numerators and the denominators. We must find the lowest common factor (LCF) for our 3 denominators (2,3,4). Our LCF turns out to be 12. *Remember what we do to the denominator we must do to the numerator. So:
= (15/2) + (10/3) + (9/4)
= [(15*6)/12] + [(10*4)/12] + [(9*3)/12]
= (90/12) + (40/12) + (27/12)
= (157/12)
Therefore Aaron Ran 157/12 miles or 13.08 miles.

Hope this helps!
4 0
3 years ago
Given f(x)=3x2−6x−1 .<br><br> What is the value of f(−2/3) ?<br> 8/3<br> 3<br> 13/3<br> 5
Sergeeva-Olga [200]

Answer:

23

Step-by-step explanation:

It's just about plugging in, nothing more than that:

https://simplisico.com/share/q/v2YxPuCDvMY7KQ9Z4DqXHPow

4 0
3 years ago
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