<img src="https://tex.z-dn.net/?f=5%20%5Ctimes%20%5Cfrac%7B4%7D%7B7%7D%20" id="TexFormula1" title="5 \times \frac{4}{7} " alt="5

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valina [46]

3 years ago

\times \frac{4}{7} " align="absmiddle" class="latex-formula">

Mathematics

2 answers:

torisob [31]3 years ago

5 0

Hi,
You simply need to multiply the numerator (4 in this case) with 5. Don’t touch the denominator (7)!
So the answer to this is 20 on 7 (20/7) or 2.857...

Butoxors [25]3 years ago

4 0

$\bf 5\times \cfrac{4}{7}\implies \cfrac{5\cdot 4}{7}\implies \cfrac{20}{7}\implies \cfrac{14+6}{7}\implies \cfrac{14}{7}+\cfrac{6}{7}\implies 2+\cfrac{6}{7}\implies 2\frac{6}{7}$

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Simplify the following expression a3b2 divided a2b

lesya [120]

a3b2/a2b Final result : ab3 Reformatting the input :

Changes made to your input should not affect the solution:

(1): "a2" was replaced by "a^2". 2 more similar replacement(s).

Step by step solution :Step 1 : b2 Simplify —— a2 Equation at the end of step 1 : b2 ((a3) • ——) • b a2 Step 2 :Multiplying exponential expressions :

2.1 b2 multiplied by b1 = b(2 + 1) = b3

Final result : ab3

3 0

3 years ago

Read 2 more answers

At Burnt Mesa Pueblo, archaeological studies have used the method of tree-ring dating in an effort to determine when prehistoric

Zanzabum

Answer:

a) (1215, 1297)

b) (1174, 1338)

c) (1133, 1379)

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 1256

Standard Deviation, σ = 41

Empirical Rule:

Also known as 68-95-99.7 rule.
It states that almost all the data lies within three standard deviation for a normal data.
About 68% of data lies within 1 standard deviation of mean.
About 95% of data lies within two standard deviation of mean.
About 99.7% of data lies within 3 standard deviation of mean.

a) range of years centered about the mean in which about 68% of the data lies

$\mu \pm 1(\sigma)\\=1256 \pm 41\\=(1215, 1297)$