Write a quadratic function h whose zeros are -10 and 3.

Mathematics

1 answer:

pogonyaev3 years ago

3 0

Answer:

(x-10) (x+3) = 0

Step-by-step explanation:

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a local charity held a crafts fair selling donated,handmade items. Total proceeds from the sale were $1,875. A total of 95 items

Lana71 [14]

15x+25y=1875
Let
y=95-x
15x+25 (95-x)=1875
Solve for x
15x+2375-25x=1875
15x-25x=1875-2375
-10x=-500
X=500/10
X=50 the number of $15 items

Y=95-50=45 the number of $25 items

5 0

3 years ago

Year 2 revenue is 5,000,000 at 32%By what percent would you need to

azamat

$x= \frac{3,000,000}{5,000,000} \cdot100\%-32\%= \frac{3}{5}\cdot100\%-32\%=60\%-32\%=28\%\\\\Ans.\ You\ need\ increase\ 28\%$

7 0

3 years ago

A normal distribution has a mean of 137 and a standard deviation of 7. Find the z-score for a data value of 121. Incorrect Round

Neko [114]

Answer:

The z-score for a data value of 121 is -2.29.

Step-by-step explanation:

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 137, \sigma = 7$