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exis [7]
3 years ago
13

t{12" alt="2\sqrt{3 (\sqrt{27-2\sqrt{12" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Strike441 [17]3 years ago
8 0

Answer: =2\sqrt{3}\sqrt[4]{27-4\sqrt{3}}\quad \left(\mathrm{Decimal:\quad }\:7.33224\dots \right)

Step-by-step explanation:

2\sqrt{3\left(\sqrt{27-2\sqrt{12}}\right)}

=2\sqrt{3\sqrt{27-2\sqrt{12}}}

=2\sqrt{3}\sqrt[4]{27-4\sqrt{3}}

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Alicia is sewing a rectangle bedspread that measures 72 inches by 60 inches. The bedspread is red with a gold circle 18 inches i
Natalija [7]

Answer:

4,066\ in^{2}

Step-by-step explanation:

we know that

The area of the bedspread that is red is equal to the area of rectangle minus the area of the circle

step 1

Find the area of rectangle

The area is equal to

A=72*60=4,320\ in^{2}

step 2

Find the area of the circle

A=\pi r^{2}

we have

r=18/2=9\ in ----> the radius is half the diameter

assume

\pi=3.14

substitute

A=(3.14)(9)^{2}

A=254.34\ in^{2}

step 3

Find the area of the bedspread that is red

Find the difference of the areas

4,320\ in^{2}-254.34\ in^{2}=4,066\ in^{2}

5 0
3 years ago
At 8 A.M., the temp was 13'F below zero. By 1 P.M., the temp rose 22'F and by 6 P.m. dropped 14'F. What was the temperature at 6
ExtremeBDS [4]
First add 22 to -13 which would be 9
Then subtract 14 from 9 which would be -5

So the answer is -5
7 0
3 years ago
Type your answer in the box provided. Make sure to use complete sentences.
slamgirl [31]

Answer:

A bird drops a stick to the ground from a height of 80 feet. The equation 0=−16x2+64x+80 gives the number of seconds that have passed when it hits the ground. After about how many seconds did the stick hit the ground?

Step-by-step explanation:

h = -16t^2 + 80   Stick hits the ground when h = 0:

0 = -16t^2 + 80    

16t^2 = 80

t^2 = 80/16 = 5

t = POSITIVE root 5 (due to the real world nature of the problem)

t approximately 2.236 seconds.

========================================

Graph is a downward opening parabola with h-intercept of 80, t-intercept(s) of sqrt(5), - sqrt(5)

Symmetric about h-axis, though I would only graph on the right side of the h-axis since  

that is where t >= 0.

5 0
3 years ago
Find the m∠BAC, if m∠DEC = 58° and m∠EDC = 43°.
miskamm [114]
I might be wrong.
I guess that in total all the angles equal to 180, that being said...

m∠BAC = 79
8 0
3 years ago
Can you teach me how to do these?? plzaa
Nitella [24]
If we are simplifying, ⅜ ab³a⁴ is
⅜a^5b³. when multiplying like bases you add exponents

second is xy²/2. when dividing like bases you subtract exponents
8 0
3 years ago
Read 2 more answers
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