Answer:
Side A = 11
Side B = 16
Side C = 25
I added an image that shows what I did in case you need it.
Maria sold 28 skateboards over the weekend at her toy store. This was 30% of all the skateboards she had in stock. How many skat
2 answers:
Answer : 93 skateboards were in stock approximately.
Step-by-step explanation:
Concept of Percentage: by a certain percent, we mean how many hundredths.
Thus, x percent means x hundredths, written as x%
To express x% as a fraction: we have, x% = x/100
If we call S, the number of skateboards that we had in stock, and now they tell us that we have sold 30% of that amount, which were 28 units, this means:
S · 30/100 = 28 units
Then, S = 28·100/30 = 2,800/30 = 93.33 => aprox. 93 units
Answer : 93 skateboards were in stock approximately.
Verification:
We can calculate 30% of 93 skateboards
93 · 30/100 = 27.9 approximately = 28 skateboards
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(x + 3)² = -20(y − 1)
<span>This is actually the vertex form, so we can obtain the vertex already
</span>the vertex is the point (h,k)------------> (-3,1)
4p=-20------------> p=-5
Focus is at (-3,1-5)---------> (-3,-4)
Directrix is at <span>y = 1-(-5)----------> y=6
</span>
the answer is
the directrix is y=6
see the attached figure