All categories

3 years ago

Number two help plz

Mathematics

1 answer:

poizon [28]3 years ago

7 0

The area of a rectangle is length + length + width + width, or 2l + 2w. Set these equal.

$\frac{35}{4}$ = $\frac{7}{2}$ + $\frac{7}{2}$ + width + width

$\frac{35}{4}$ = 7 + 2w; subtract 7 from both sides

$\frac{7}{4}$ = 2w; divide both sides by 2

$\frac{7}{8}$ = w, or the width (in meters)

You might be interested in

Can someone please help me

defon

9514 1404 393

Answer:

P = 50,000

r = 0.08

i = 0.02

K = 4

n = 20

t = 5

Step-by-step explanation:

In this formula, r is the annual interest rate, 8% or 0.08. K is the number of times the interest is compounded in a year. Since interest is compounded quarterly, K = 4.

r = 0.08

i = r/K = 0.08/4

i = 0.02

t is the number of years interest is compounded, so ...

t = 5

n = Kt = 4·5

n = 20

P is the principal amount invested:

P = 50,000

7 0

2 years ago

Help me please:(:(:(:(:(

Dmitry [639]

Answer:

ndjndkjsdf

Step-xplanation:fdjsdnfdjnfdfsfd

7 0

2 years ago

1. A submarine is 40 meters below sea level. It goes up 12 meters, then goes down 30 meters. What is the submarine's new positio

Lilit [14]

Answer:

Question Number 1: C. -58 meters

Question Number 2: 1.45 lbs

Step-by-step explanation:

Question Number 1:

40 - 12 = 28 meters below sea level

28 + 30 = 58 meters below sea level . So respectively its negative, so -58 would be your answer .

Question Number 2:

To figure out how many pounds of carrots are in each cake, divided 7.25 by 5. That equals 1.45. So one cake needs 1.45 pounds of carrots.

8 0

2 years ago

Can't figure it out!!

Zanzabum

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------\\\\
f(x)= \cfrac{1}{x} \qquad 
\begin{cases}
x_1=2\\
x_2=b
\end{cases}\implies \cfrac{f(b)-f(2)}{b-2}=-\cfrac{1}{10}
\\\\\\
\cfrac{\frac{1}{b}-\frac{1}{2}}{b-2}=-\cfrac{1}{10}\implies 
\cfrac{\frac{2-b}{2b}}{b-2}=-\cfrac{1}{10}\implies \cfrac{2-b}{2b}=-\cfrac{b-2}{10}
\\\\\\
$

$\bf \cfrac{2-b}{2b}=\cfrac{2-b}{10}\implies 20-10b=4b-2b^2\impliedby cross-multiplying
\\\\\\
2b^2-4b-10b+20=0\implies 2b^2-14b+20=0
\\\\\\
b^2-7b+10=0\implies 
(b-2)(b-5)=0\implies b=
\begin{cases}
\boxed{5}\\
2
\end{cases}$

8 0

2 years ago

Is 3x+12-2x equivalent to x +12? Use two properties of operations to justify your answer.

aev [14]

Answer:

Yes, x + 12

Step-by-step explanation:

Simplify the following:

3 x - 2 x + 12

Grouping like terms, 3 x - 2 x + 12 = (3 x - 2 x) + 12:

(3 x - 2 x) + 12

3 x - 2 x = x:

Answer: x + 12

8 0

3 years ago

Read 2 more answers