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andre [41]
3 years ago
11

Find the length of AB , given that DB is a median of the triangle and AC = 50.

Mathematics
2 answers:
natta225 [31]3 years ago
4 0
Since DB is the median of the triangle, it would bisect the base AC. This would mean that AB and BC are equal halves of the whole AC. So, if AC is 50, then,

AC = AB + BC
since AB = BC,
AC = 2AB
50 = 2AB
AB = 50/2
AB = 25

The answer is 25.
frutty [35]3 years ago
4 0

<u>Answer-</u>

<em>The length of AB is </em><em>25 units.</em>

<u>Solution-</u>

Median-

A median of a triangle is a line segment joining a vertex to the midpoint of the opposing side, bisecting it.

As given that, DB is a median of the triangle. DB is a median to side AC, so it bisects or divides AC in two equal parts.

Hence,

\Rightarrow AC=2\times AB

\Rightarrow AB=\dfrac{1}{2}AC

\Rightarrow AB=\dfrac{1}{2}\times 50 = 25

Therefore, the length of AB is 25 units.

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Ivan has 15 yards of green felt and 12 yards of blue felt to make 3 quilts if Ivan uses the same total number of yards for each
mixas84 [53]

Answer:

9 yards

Step-by-step explanation:

Let the length of each quilt be 'l'.

Given:

Length of green felt (g) = 15 yards

Length of blue felt (b) = 12 yards

Total number of quilts = 3

Now, the length of 3 quilts is given as:

Total\ length=l+l+l=3l ----- (1)

As per question:

Total length = Length of green felt + Length of blue felt

Total length = g+b

Total\ length=15+12=27--------- (2)

Now, comparing equations (1) and (2), we get:

3l=27\\\\l=\frac{27}{3}\\\\l=9\ yards

Hence, each quilt measures 9 yards in length.

3 0
3 years ago
What is 78,400,000 expressed in scientific notation?
Virty [35]

Answer:

7.84  ×  10 ^7

Step-by-step explanation:

6 0
2 years ago
A farmer had 1,000 horses and cows. After selling some of them, he had 550 horses and 350 cows left. How many horses and cows di
ipn [44]
The farmer had sold 100 horses and cows
5 0
3 years ago
3/4 x 3 2/5 - 5/5(find the value of each of the following) ​
Triss [41]

The value of the given expression is \frac{-13}{20}.

Solution:

Given expression is \frac{3}{4} \times3\frac{2}{5}-\frac{5}{5}.

Let us first convert mixed fraction into improper fraction.

3\frac{2}{5}=\frac{(3\times5)+2}{5}=\frac{17}{5}

Substitute this in the given expression.

\frac{3}{4} \times3\frac{2}{5}-\frac{5}{5}=\frac{3}{4} \times\frac{7}{15}-\frac{5}{5}

                  =\frac{21}{60}-\frac{5}{5}

To simplify the above expression, 21 and 60 are cancelled by 3.

                 =\frac{7}{20}-\frac{1}{1}

Do cross multiplication to make the denominator same.

                 =\frac{7}{20}-\frac{20}{20}

                 =\frac{7-20}{20}

                 =\frac{-13}{20}

The value of the given expression is \frac{-13}{20}.

7 0
3 years ago
Answer correctly please !!!! Will mark Brianliest !!!!!!!!!!!!!!
Butoxors [25]

Answer:

100π

Step-by-step explanation:

Area of a circle formula: πr²

The radius would be half of 20 m

So the radius, r is 10 m

Plug that in

πr²=π·10²=100π

7 0
3 years ago
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