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3 years ago

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1 answer:

Xelga [282]3 years ago

3 0

it is going to take 18 miles in 1 hour

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In the neighborhood park there is a circular grassy picnic area but half of the grass has died the city wants to replace the gra

FrozenT [24]

235.5 square feet need to be replaced

5 0

3 years ago

Read 2 more answers

What is the step method to find gcf of 28 and 42

Yuliya22 [10]

First, try multiplying multiple numbers to see if you get these numbers.
2=4,6,8,10,12,14,16,18,20,22,24,26,(28),30,32,34,36,38,40,(42)
7=7,14,21,(28),35,(42)
14= 14,(28),(42)
14, would be best; Alternatively, the GCF of 28 and 42 can be found using the prime factorization of 28 and 42.
<span>-The factors of 28 are 28, 14, 7, 4, 2, 1.<span>
-The factors of 42 are 42, 21, 14, 7, 6, 3, 2, 1.
Common numbers: 1 , 2, 7,14 , the largest number that can go into both is 14.
</span></span>

7 0

3 years ago

One exterior angle of a regular pentagon measures _____. 60° 72° 90° 120°

dem82 [27]

72 beacuau it is 90 and 120 72

5 0

3 years ago

Read 2 more answers

Lines b and c are parallel.

Arisa [49]

Answer:

$m\angle 6=54^o$

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

step 1

Find the value of x

we know that

$(13x+9)^o+(5x+9)^o=180^o$ ----> by consecutive exterior angles (supplementary angles)

solve for x

$(18x+18)^o=180^o\\18x=162\\x=9$

step 2

Find the measure of angle 6

we know that

$m\angle 6=(5x+9)^o$ ----> by vertical angles

substitute the value of x

$m\angle 6=(5(9)+9)=54^o$

3 0

3 years ago

Read 2 more answers

Mara simplifies the expression: -(7x - 3y) + 2(x + 4). Her work is shown. In what step does she make a mistake?

likoan [24]

<em><u>Correct steps are shown</u></em>

<em><u>Correct simplified expression is:</u></em>

$-(7x - 3y) + 2(x+4) = -5x + 3y+8$

<em><u>Solution:</u></em>

<em><u>Given that: Mara simplifies the expression</u></em>

$-(7x - 3y) + 2(x+4)$

<em><u>Correct steps are:</u></em>

From given,

$-(7x - 3y) + 2(x+4)$

<em><u>Use the distributive property,</u></em>

a(b + c) = ab + bc

Therefore,

$-(7x - 3y) + 2(x+4) = -7x +3y + 2x + 8$

Group the like terms

$-(7x - 3y) + 2(x+4) = -7x + 2x + 3y + 8\\\\Combine\ the\ like\ terms\\\\-(7x - 3y) + 2(x+4) = -5x + 3y+8$

Thus the expression is simplified

8 0

3 years ago