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3 years ago

What is the founder of 100 and 2,009

Mathematics

2 answers:

katen-ka-za [31]3 years ago

8 0

Answer:

im kinda confused on what your asking but if you wanna know who then Milton Sirotta and our number system comes from Aryabhata

Step-by-step explanation:

tensa zangetsu [6.8K]3 years ago

6 0

Yea I’m confused what u talking bout give me more details

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The value of the expression 2x² + x(100- 15 x) when x = 5 is X

Verizon [17]

<h2>Answer :</h2>

$\boxed{ \boxed{ \mathrm{ \: \: \: \: \: \: \: \: \: 175 \: \: \: \: \: \: \: \: \: }}}$

<h2>Solution :</h2>

Plugging the value of x as 5 in the given expression we get,

$\hookrightarrow \: 2 {x}^{2} +x (100 - 15x)$

$\hookrightarrow \: 2(5) {}^{2} + 5(100 - (15 \times 5))$

$\hookrightarrow \: (2 \times 25) + 5(100 - 75)$

$\hookrightarrow \: 50 + 5(25)$

$\hookrightarrow \: 50 + 125$

$\hookrightarrow \: 175$

3 0

3 years ago

Read 2 more answers

Zoe's mom is making super hero capes for the guests at her little brother's birthday party. Each cape uses of a yard of fabric.

kumpel [21]

Answer:

Part A: 10 complete capes.

Part B: 120 minutes.

Step-by-step explanation:

Part A:

Given:

Amount of fabric required for 1 cape is 1 yard.

Total amount of fabric bought by Zoe's mom are 10 yards.

Using unitary method,

∵Number of capes made from 1 yard fabric = 1

∴ Number of capes made from 10 yard fabric = $10\times 1=10$

Part B:

Given:

Time taken to make 1 cape is 12 minutes.

Using unitary method,

∵Time taken to make 1 cape = 12 minutes.

∴ Time taken to make 10 capes = $12\times 10=120$ minutes.

3 0

3 years ago

A philosophy professor assigns letter grades on a test according to the following scheme. A: Top 13% of scores B: Scores below t

True [87]

Answer:

The minimum score required for an A grade is 85.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

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 question, we have that:

$\mu = 76, \sigma = 7.9$