3 years ago

Using PEMDAS, which expression would you solve for first in the equation 7 * 4 + 22 / 4 - 2?

Mathematics

1 answer:

Anna71 [15]3 years ago

8 0

A. 7*4

because there are no parentheses or exponents so multiplication is next

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Find the area of the figure.

Slav-nsk [51]

Answer:

132cm

Step-by-step explanation:

Split there firgue into shapes you know

there is a rectangle and a Trapezoid

A = bh

A = 7×4

A = 28cm

Trapezoid

A = 1/2h(b+b)

A = 1/2×8(19+7)

A = 1/2×8(26)

A = 1/2(208)

A = 104cm

Add them together

104 + 28 = 132

4 0

3 years ago

Read 2 more answers

Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of π.)

laila [671]

$\bf \textit{area of a circle}\\\\
A=\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
A=452.16
\end{cases}\implies 452.16=\pi r^2\implies \cfrac{452.16}{\pi }=r^2
\\\\\\
\boxed{\sqrt{\cfrac{452.16}{\pi }}=r}\\\\
-------------------------------\\\\
\textit{circumference of a circle}\\\\
C=2\pi r\qquad \qquad \implies C=2\pi \left( \boxed{\sqrt{\cfrac{452.16}{\pi }}} \right)$

so, is just that product, recall to use "<span>3.1416 as the value of π".</span>

7 0

3 years ago

Alexis goes to the flower shop and buys 6 tulips and 4 daffodils. The total cost is $46. Marci goes to the same flower shop and

puteri [66]

Your answer can be two answer it can 126.12 or it can possibly be 96.80

4 0

2 years ago

What is the next fraction in this sequence? Simplify your answer. 3/4, 1/4, 1/12, 1/36

antiseptic1488 [7]

Hey their,

3/4
1/4
1/12
1/36
0/60

The pattern is -1/x every 2 +x/8

How i got this was 36/12=3
3*12=36
so 60-36=24
24x3/2+24=60
then 60/5=12

Hopethis helped

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3 years ago

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Bingel [31]

Are you cheating in a exam if you are

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2 years ago