All categories

3 years ago

What is the formula for pie

Mathematics

1 answer:

Amanda [17]3 years ago

8 0

Answer:

3.14

Step-by-step explanation:

You might be interested in

Janet plants 20 varieties of flowers in the spring . She reports that 90% of the flowers she have planted bloomed

SIZIF [17.4K]

Answer:

Step-by-step explanation:

90% of 20 is 18

8 0

3 years ago

Read 2 more answers

if three out of every seven students are going on a field trip,how many will be going if there are 845 students in the school

pickupchik [31]

We need to multiply 3/7 by 845: $\frac{3}{7} (845)=362 \frac{1}{7}$

5 0

4 years ago

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

the length of a rectangular swimming pool is triple its width the pool covers an area of 192 m squared

SCORPION-xisa [38]

Hope this helps you!

3 0

3 years ago

Need answers I’ll pay

Alik [6]

Answer:

how much are u gonna pay

Step-by-step explanation:

8 0

3 years ago