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2 years ago

Sjifisifnjsjemwjjfjwudjjsdjf

Mathematics

1 answer:

Igoryamba2 years ago

6 0

Answer:

No answer

Step-by-step explanation:

I'm just a smart guy

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Write an expression that can be used to multiply 6x198 mentally

VashaNatasha [74]

6×100
6×90
6×8
hope this helps

7 0

3 years ago

O points

Aloiza [94]

Answer:

1/2

Step-by-step explanation:

7 0

2 years ago

A cube has a surface area of 37 1/2. What's the volume?

Dmitry [639]

Here's the solution,

let the sides of cube be a

now, we know

Surface area =

$6 {a}^{2}$

So,

=》

$6 {a}^{2} = 37 \dfrac{1}{2}$

=》

$6 {a}^{2} = 37.5$

=》

${a}^{2} = \dfrac{37.5}{6}$

=》

${a}^{2} = 6.25$

=》

$a = \sqrt{6.25}$

=》

$a = 2.5 cm$

Each side of cube measures 2.5 cm

volume :

=》

${a}^{3}$

=》

$2.5 \times 2.5 \times 2.5$

=》

$15.625$

=》

$15 \dfrac{5}{8} \: cm {}^{3}$

3 0

3 years ago

What’s the area of this parallelogram A. 364 B. 143 C. 91 D. 52

OLEGan [10]

The answer is b. Cause 7*13 is 91 equaling the area for the two triangles then 13*4 is 52 so 52+91 is 143

5 0

3 years ago

According to the formula, if the end of year deposit is $1,777.31, the annual interest rate is 5%, and the term is 18 years, fin

Llana [10]

$\bf ~~~~~~~~~~~~\textit{Future Value of an ordinary annuity}\\
\left. \qquad \qquad \right.(\textit{payments at the end of the period})
\\\\
A=pymnt\left[ \cfrac{\left( 1+\frac{r}{n} \right)^{nt}-1}{\frac{r}{n}} \right]$

$\bf ~~~~~~
\begin{cases}
A=
\begin{array}{llll}
\textit{accumulated amount}\\
\end{array}\to &
\begin{array}{llll}
\end{array}\\
pymnt=\textit{periodic payments}\to &1777.31\\
r=rate\to 5\%\to \frac{5}{100}\to &0.05\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{is done on a yearly basis}
\end{array}\to &1\\
t=years\to &18
\end{cases}$

$\bf A=1777.31\left[ \cfrac{\left( 1+\frac{0.05}{1} \right)^{1\cdot 18}-1}{\frac{0.05}{1}} \right]\implies A=1777.31\left( \cfrac{1.05^{18}}{0.05} \right)$

6 0

3 years ago