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stellarik [79]
3 years ago
11

Find the measure of the missing angle. a 50°

Mathematics
1 answer:
xeze [42]3 years ago
4 0

Answer:

a = 40°

Step-by-step explanation:

I. When total angle is 180 or half of circle

Find a or missing angle by

180 = 50 + 90 + x

180 - 140 = x

x = 40º

That makes a is 40º

Hope that help :)

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Josie is making pizza dough. Complete the double number line by filling in the missing values. Then write an equation that model
coldgirl [10]

Answer:

First part:

To complete the top number line use the numbers

          1\dfrac{1}{2}  

and

          2\dfrac{1}{4}

To complete the bottom number line use the numbers:

  • 3, and
  • 4

Second part:

The relationship between the total cups of flour, c, and number of batches n, is:

        c=\dfrac{3}{4}n

Explanation:

Find the complete question if the file attached.

First part.

The number line on top shows the number of cups of flour, c.

Each mark corresponds to 3/4 of cups. Thus the numbers that complete the number line are:

       \dfrac{3}{4}+\dfrac{3}{4}=\dfrac{6}{4}=\dfrac{4}{4}+\dfrac{2}{4}=1+\dfrac{1}{2}=1\dfrac{1}{2}

      1\dfrac{1}{2}+\dfrac{3}{4}=1+\dfrac{1}{2}+\dfrac{3}{4}=\dfrac{4}{4}+\dfrac{2}{4}+\dfrac{3}{4}=\dfrac{9}{4}=\dfrac{8}{4}+\dfrac{1}{4}=2+\dfrac{1}{4}=2\dfrac{1}4}

The the two numbers that complete the top number line are:

          1\dfrac{1}{2}  

and

          2\dfrac{1}{4}

The bottom number line models the number of batches of dough, n.

Each mark corresponds to one unit, i.e. one batch.

Thus, the missing values are:

  • 2 + 1 = 3, and
  • 3 + 1 = 4.

Second part. Find the relationship between the total cups of flour, c, and number of batches n.

The relationship is indicated by the marks that are at equivalent position:

You can notice that you must multiply the number of batches, n, by 3/4 to get the number of cups of flour, c, that correspond to the same position:

 For instance:

         1\times \dfrac{3}{4}=\dfrac{3}{4}

        4\times \dfrac{3}{4}=3

Therefore,

       c=\dfrac{3}{4}n

5 0
3 years ago
A seed company planted a floral mosaic of a national flag. the perimeter of the rectangular planting area is 420 feet. the lengt
pantera1 [17]

Answer:

Length = 50 feet

Width = 160 feet

Explanation:

I'm assuming the flagpole is not included in this question.

w

=

w

i

d

t

h

l

=

≤

n

>

h

The length compared to the width is:

w

=

l

+

110

<-- equation 1

The formula for perimeter:

P

=

2

w

+

2

l

420

=

2

w

+

2

l

<-- equation 2

Sub the first equation into the second.

420

=

2

(

l

+

110

)

+

2

l

Now you can solve for

l

algebraically.

420

=

2

l

+

220

+

2

l

4

l

=

200

l

=

50

Sub the found length into the first equation to find the length.

w

=

(

50

)

+

110

w

=

160

Therefore the flag is 50 feet long and 160 feet wide.

3 0
2 years ago
An equation of the line passing through points B and D is
noname [10]

Answer:

maths

this too hard idk like C idk bc C is betwwed B and D

7 0
3 years ago
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Determine if two triangles are congruent. If they are, state how you know.
nataly862011 [7]

Answer:

B. SSS

Step-by-step explanation:

The two triangles already have 2 congruent sides, and the only missing thing to see is that they both share the same side with one another. This automatically makes them congruent.

6 0
3 years ago
Which of the following are NOT sufficient to prove that a quadrilateral is a parallelogram?
Ksenya-84 [330]
The answers are
<span>I. Two pairs of opposite angles congruent. 
II. A pair of adjacent angles are supplementary. </span> 
<span>VIII. The diagonals bisect each other. </span>
3 0
3 years ago
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