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Advocard [28]
3 years ago
7

Measure of angle A???

Mathematics
2 answers:
Rudik [331]3 years ago
4 0

Answer:

A

Step-by-step explanation:

The triangle shown has all 3 sides equal in length, hence it is an equilateral triangle.

A property of equilateral triangles is the angles are congruent.

The sum of the 3 angles = 180°, hence the measure of each angle is

\frac{180}{3} = 60° → A


andrezito [222]3 years ago
3 0
Letter A. Which is letter 60 degrees. You can tell since it’s not a right angle, which gets rid of 90 degrees. It’s not 30 degrees because that would be too small. And it’s not 180 degrees because it’s too big.
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Which lines is a parallel to the line y=1/2x+5 and passes through the point (-2,1)?
Archy [21]

Answer:

The answer is: y = 1/2x + 2

Step-by-step explanation:

Given equation: y = 1/2x + 5

Given point: (-2, 1)

The slope of the given line is 1/2. Parallel lines have the same slope.

Use the point slope form and solve for y:

y - y1 = m(x - x1)

y - 1 = 1/2(x - (-2))

y - 1 = 1/2(x + 2)

y - 1 = 1/2x + 1/2 * 2

y - 1 = 1/2x + 1

y = 1/2x + 2

Proof:

f(-2) = 1/2(-2) + 2

= -1 + 2

= 1, giving point (-2, 1)

Hope this helps!! Have an Awesome Day!! :-)

5 0
3 years ago
A triangle has two sides of lengths 4 and 7. What value could the length of
lara [203]

Answer:

B. C. F.

Smaller Side + Other smaller side > Bigger side

Hope this helps

Step-by-step explanation:

8 0
3 years ago
Solve 6.1−0.3≥c+1. <br> please help me
horsena [70]

Answer:

c≤  24/25

​

Step-by-step explanation:

"0.3" was replaced by "(3/10)". 2 more similar replacement(s). Simplify 3/10

    61     3      

 (—— -  ——) -  (c + 1)  ≥ 0    then simplify 61/10

  10    10    

3.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

    61 - (3)                   29

————————  =  ——

     10                          5

29    

 —— -  (c + 1)  ≥ 0  

 5    

4.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  5  as the denominator :

            c + 1     (c + 1) • 5

   c + 1 =  —————  =  ———————————

              1            5      

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Rewrite the whole as a fraction using  5  as the denominator :

                         c + 1     (c + 1) • 5

   c + 1 =  —————  =  ———————————

                             1            5    

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

                              29 - ((c+1) • 5)     24 - 5c

————————————————  =  ———————

                                          5                5

    24 - 5c

 ———————  ≥ 0  

      5    

 

Multiply both sides by  5  

5.2    Multiply both sides by (-1)

Flip the inequality sign since you are multiplying by a negative number

     5c-24  ≤ 0

5.3    Divide both sides by  5  

     c-(24/5)  ≤ 0

5.4      Add  24/5  to both sides

            c ≤ 24/5

8 0
2 years ago
Read 2 more answers
the mean of a set of five numbers is 3k. when a sixth number is added to the set, the mean increases by k. what is the ratio of
Strike441 [17]

Let’s call the sum of the set of five numbers S and the sixth number N. We know the mean of the set of five numbers is 3k, so we can write the equation S/5 = 3k or S = 15k. When we add the sixth number the mean increases by k, so we can write the equations (S + N)/6 = 4k or S + N = 24k. Using S = 15k, we find that N = 9k. The ratio of the sixth number to the sum of the set of five numbers is therefore N/S = 9k/15k = 3/5.

4 0
1 year ago
Circumstance of 12yd
marusya05 [52]

Answer: 40.82yd

Step-by-step explanation:

First of all, it's ''circumference'' and second of all, it's ''13yd''.

Formula: C=2\pi r

2r is the same as d = diameter,

C=\pi d

C=(3.14)(13)\\C=40.82yd

5 0
2 years ago
Read 2 more answers
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