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Nookie1986 [14]
3 years ago
10

Mrs. Barrera learned that 21 of

Mathematics
1 answer:
otez555 [7]3 years ago
8 0

Answer:

just do 21/25

Step-by-step explanation:

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What is the radius for the circle given by the equation x^2+(y -3)^2 = 21
MatroZZZ [7]

\bf\textit{equation of a circle}\\\\(x- h)^2+(y- k)^2= r^2\qquadcenter~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquadradius=\stackrel{}{ r}\\\\[-0.35em]\rule{34em}{0.25pt}\\\\x^2+(y-3)^2=21\implies (x-0)^2+(y-3)^2=(\sqrt{21})^2\qquad \begin{cases}center~(0,3)\\r=\sqrt{21}\end{cases}\\\\\\r\approx 4.58257569495584000659\implies r = \stackrel{\textit{rounded up}}{4.583}

3 0
3 years ago
Read 2 more answers
A carpenter must pick up a wooden beam from the Home Depot. The wooden beam is 12 feet long. The bed of his truck is 5.5 ft by 8
rosijanka [135]

Answer:

Beam stick out = 2.09 ft

Step-by-step explanation:

Given:

Length of wooden beam = 12 ft

Side of bed =  5.5 ft by 8 ft by 2 ft

Find:

Length of wooden beam needed.

Computation:

Length\ of \ diagonal = \sqrt{a^2+ b^+ c^} \\\\\\ Length\ of\ diagonal =  \sqrt{5.5^2+ 8^2+ 2^2}\\\\ Length\ of\ diagonal =  \sqrt{30.25+64+4}\\\\Length\ of\ diagonal =  \sqrt{98.25}\\\\Length\ of\ diagonal =  \sqrt{30.25+64+4}\\\\Length\ of\ diagonal = 9.91

Length of wooden beam needed = 9.91 ft

Beam stick out = 12 ft - 9.91 ft

Beam stick out = 2.09 ft

4 0
4 years ago
Grace started her own landscaping business. She charges $6 an hour for mowing lawns and $11 per hour for pulling weeds. In Septe
Step2247 [10]

Answer:

   $477

Step-by-step explanation:

(36)(6)= 378  Lawns

(11)(9)=   +99 Weed Pulling

           $477 earned in September

7 0
3 years ago
Item 8 A container has peppermint gum and spearmint gum. There are 18 pieces of peppermint gum in the container and the ratio of
Montano1993 [528]

Answer:Number of Spearmint gum = 27 pieces

Step-by-step explanation:

step 1

Let the total number of peppermint gum and spearmint gum in the container = X

Ratio of peppermint gum to  spearmint gum=  2 : 3.

Total ratio = 2+ 3=5

Step 2

we were given that  peppermint gum= 18 pieces , so total number of gums  will be calculated as

Ratio of peppermint/ Total ratio x Total number of gums = Number of peppermint

2/5 x X= 18

X=(18X 5) / 2 = 45

X=  Total number of gums = 45

Number of spearmint gum  will now be

Ratio of spearmint/ Total ratio x Total number of gums = Number of spearmint

3/5 x 45= 27

Therefore Number of Spearmint gum = 27 pieces

7 0
3 years ago
Which expression uses the GCF and the distributive property to write 28 + 12 as a product....2(14+6)
Nikitich [7]

4(7+3)

Step-by-step explanation:

GCF is Greatest Common Factor

One Common Factor of 28 and 12 is 2 to give 14 and 6

There is an additional common factor between 14 and 6 (which is 2) to give 7 and 3

There is no common factor between 7 and 3

To get the Greatest Common Factor, we multiply the derived common factors 2 and 2 above

2 * 2 = 4

Therefore the correct choice is

4(7+3)

Learn More:

For more on GCF check out;

brainly.com/question/13432648

brainly.com/question/9703976

#LearnWithBrainly

5 0
3 years ago
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