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3 years ago

Which product is less than 98

Mathematics

2 answers:

ad-work [718]3 years ago

7 0

high-fivebfnmrkwlwmfnfjj

MatroZZZ [7]3 years ago

6 0

Answer:

3x-x+2=4

Step-by-step explanation:

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Find <img src="https://tex.z-dn.net/?f=a_%7B1%7D" id="TexFormula1" title="a_{1}" alt="a_{1}" align="absmiddle" class="latex-form

yKpoI14uk [10]

Answer:

$\displaystyle a_{1} = 108$

Step-by-step explanation:

we are given

the sum,common difference and nth term of a geometric sequence

we want to figure out the first term

recall geometric sequence

$\displaystyle S_{ \text{n}} = \frac{ a_{1}(1 - {r}^{n} )}{1 - r}$

we are given that

$S_n=189$
$r=\dfrac{1}{2}$
$n=3$

thus substitute:

$\displaystyle 189= \frac{ a_{1}(1 - {( \frac{1}{2} )}^{3} )}{1 - \frac{1}{2} }$

to figure out $a_1$ we need to figure out the equation

simplify denominator:

$\displaystyle \frac{ a_{1}(1 - {( \frac{1}{2} )}^{3} )}{ \dfrac{1}{2} } = 189$

simplify square:

$\displaystyle \frac{ a_{1}(1 - {( \frac{1}{8} )}^{} )}{ \dfrac{1}{2} } = 189$

simplify substraction:

$\displaystyle \frac{ a_{1} (\frac{7}{8} )}{ \frac{1}{2} } = 189$

simplify complex fraction:

$\displaystyle a_{1} (\frac{7}{8} ) \div { \frac{1}{2} } = 189$

calculate reciprocal:

$\displaystyle a_{1} \frac{7}{8} \times 2 = 189$

reduce fraction:

$\displaystyle a_{1} \frac{7}{4} \ = 189$

multiply both sides by 4/7:

$\displaystyle a_{1} \frac{7}{4} \times \frac{4}{7} \ = 189 \times \frac{4}{7}$

reduce fraction:

$\displaystyle a_{1} = 27\times 4$

simplify multiplication:

$\displaystyle a_{1} = 108$

hence,

$\displaystyle a_{1} = 108$

4 0

3 years ago

Simplify. Х+4/3x^2+7x - 20

pickupchik [31]

Answer:4/3x²+8x−20

Step-by-step explanation:Combine Like Terms:

=x+

x2+7x+−20

x2)+(x+7x)+(−20)

x2+8x+−20

8 0

3 years ago

If x = 3 + 2√2, then the value of (x - 1/x) is a) 4√2 b) 2√4 c) 8

vitfil [10]

Your answer is: A. 4/2

Hope this helps and happy holidays!!

5 0

3 years ago

What's 47/3 as a mixed number

horrorfan [7]

$\frac{47}{3}=\frac{45+2}{3} = \frac{45}{3}+\frac{2}{3} = 15+\frac{2}{3} = 15\frac{2}{3}$

3 0

4 years ago

Read 2 more answers

I been struggling with this please help

nydimaria [60]

The answer is A :):):):)

5 0

3 years ago

Read 2 more answers