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Dovator [93]
3 years ago
14

For each part below, use

Mathematics
2 answers:
Law Incorporation [45]3 years ago
8 0

Answer:

a.) 70*

b.) 60*

Step-by-step explanation:

a.) An isosceles triangle has two angles that are equal. The one other angle is 40*, meaning you have to subtract that from 180 and then divide by 2.

b.) An equilateral triangle has three equal angles. Divide 180 by 3.

Free_Kalibri [48]3 years ago
6 0

Answer:

a)180-40

=140÷2

=70

answer 70°

b)180÷3

=60

60°

Step-by-step explanation:

each triangle things add up to 180

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Bath and 1 yard of ribbon. She is 1/2 yard for project. She wants to divide the rest of the ribbon into pieces 1/4 yards long. H
ikadub [295]

Answer:

2

Step-by-step explanation:

Given:

Total length of ribbon = 1 yard

Length of ribbon used for project = \frac{1}{2} yard

Length of ribbon the rest of ribbon is to be divided = \frac{1}{4} yard

To find:

The number of ribbons of length \frac{1}{4} yard that can be made = ?

Solution:

Length of ribbon left after the 1 yard ribbon is used for project can be calculated by subtracting the length of ribbon used from the initial length of ribbon.

i.e.

Length of ribbon left = 1-\frac{1}{2} =\frac{1}{2} yard

Now, number of ribbon of length \frac{1}{4} yard can be found be dividing the length of ribbon left with the length of ribbon pieces to be cut.

i.e.

Number of ribbons:

\dfrac{\frac{1}{2}}{\frac{1}{4}}\\\Rightarrow \dfrac{1}{2}\times 4 = 2

3 0
3 years ago
A line passes through A(3, 7), and B(-4, 9). Find the value of a if C(a, 1) is on the line.
marissa [1.9K]

Answer:

ANSWER

a=-32

EXPLANATION

If C(a,1) is on the line that passes through A(3, 7), and B(-4, 9), then the three points are collinear.

This implies that, when we find the slope using any two points, we should get the same re.  sorry couldnt finish

Step-by-step explanation:

5 0
3 years ago
Use the diagram to fill in the blanks<br> x=<br> m∠=
faust18 [17]

Answer:

x = 21, m∠A = 23°, the measure of angle in the right = 67°

Step-by-step explanation:

The angles of a triangle sum up to 180°.

Right angles equals to 90°.

Thus, (2x - 19)° + (3x + 4)° + 90° = 180°

=> 5x + 75 = 180

=> 5x = 105

=> x = 21

m∠A=> 2(21) -19 = 23°

the measure of angle in the right=> 3(21) + 4 = 67°

8 0
3 years ago
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Stels [109]

Answer:

Diameter = 43.96m^{2}

Circumference = 153.86m^{2}

8 0
3 years ago
It takes a turtle 3 ¼ hours to walk 1 ½ miles. How many hours does it take to walk one mile?
Norma-Jean [14]

Answer:

It will take 6/13 hours to walk one mile

Step-by-step explanation:

Here, we want to calculate the number of hours it take to walk one mile

From the question, 1 1/2 miles take 3 1/4 hours

the number of hours it will take to walk 1 mile will be;

1 1/2 divided by 3 1/4

= 3/2 divided by 13/4

= 3/2 * 4/13 = 6/13 hours

4 0
3 years ago
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