Ask question

Ask question

All categories

3 years ago

12

Please any help is necessary

1 answer:

Ugo [173]3 years ago

3 0

Answer:

Option D. 50 ft

Step-by-step explanation:

we know that

The area of the figure is equal to the area of three rectangles

so

$A=18x+(48-36)(32-11)+(18)(32)$

$A=18x+(12)(21)+(18)(32)\\A=18x+828$

Remember that the area is given

$A= 1,728\ ft^2$

so

$18x+828=1,728$

solve for x

$18x=1,728-828\\18x=900\\x=50\ ft$

You might be interested in

In ΔCDE, \overline{CE}

abruzzese [7]

Answer:

$m\angle CDE=14^o$

Step-by-step explanation:

we know that

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

see the attached figure to better understand the problem

so

∠DEF=∠ECD+∠CDE

substitute the given values

$(4x+5)^o=(x+9)^o+(x+8)^o$

solve for x

Combine like terms

$(4x+5)^o=(2x+17)^o$

Group terms

$4x-2x=17-5$

$2x=12$

$x=6$

Find the measure of angle CDE

$m\angle CDE=(x+8)^o$

substitute the value of x

$m\angle CDE=(6+8)=14^o$

8 0

3 years ago

What number has 9 thousands and 4 less hundreds than thens

Reil [10]

..........9500..........

6 0

4 years ago

Explain why a geometric series with a ratio between zero and one converges and how you find the sum.

Alex Ar [27]

Let $S_n$ be the $n$ th partial sum of a geometric sequence with common ratio $r$ and first term $a$ . So the sequence is $\{a,ar,ar^2,\cdots\}$ , and $S_n$ is

$S_n=a+ar+ar^2+\cdots+ar^{n-2}+ar^{n-1}$

Multiplying both sides by $r$ gives

$rS_n=ar+ar^2+ar^3+\cdots+ar^{n-1}+ar^n$

and subtracting $rS_n$ from $S_n$ gives

$S_n-rS_n=a+(ar-ar)+(ar^2-ar^2)+\cdots+(ar^{n-1}-ar^{n-1})-ar^n$
$(1-r)S_n=a(1-r^n)$
$S_n=a\dfrac{1-r^n}{1-r}$

If $0$ , then $r^n\to0$ as $n\to\infty$ and so the sum approaches

$\displaystyle\lim_{n\to\infty}S_n=\dfrac a{1-r}$

6 0

3 years ago

Read 2 more answers

PLEASE HELP ME!!!! I HAVE 2 ATTEMPTS LEFT FOR THIS PROBLEM!!! I DID THE FIRST 2 BUT PLEASE HELP WITH THE OTHER 2!!!!!

RSB [31]

Answer:if a=7, c=25 then the other one i don't know sorry

Step-by-step explanation:

5 0

4 years ago

If the arc length of a sector in the unit circle is

Oksi-84 [34.3K]

If rad=3pi/2 then the angle is 3pi/2*180/pi

4 0

4 years ago