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natka813 [3]
3 years ago
13

Prove that a triangle with two congruent altitudes is an isoceles triangle.

Mathematics
1 answer:
miskamm [114]3 years ago
7 0

Answer:

See image

Isosceles triangles have 2 congruent base angles

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A Pharmacist whishes to mix a solution that is 6% Minoxidil. She has on hand 100 ml of 4% solution and wishes to add some 8% sol
dangina [55]

Answer:

100

Step-by-step explanation:

Let x be the amount to be added of the second solution. For every 100ml of it 8 units of minoxidil are added. The total amount of solution will be (100 + x), so the final concentration is given by:

4 / (100 + x) + 0.08x / (100 + x) = 0.06  [Multiplying by (100 + x)]

4 + 0.08x = 6 + 0.06x                            [Transposing terms]

0.08x - 0.06x = 6 - 4                              [ operating]

0.02x = 2                                                 [Dividing by 0.02]

x=100

4 0
3 years ago
Joe practiced his trumpet 3/4 hour on Monday and 7/12 hour on Tuesday. How long did he practice altogether
Allisa [31]
1 1/3 hours. 3/4 plus 7/12 equals 1 1/3. Hope this helps
8 0
4 years ago
What is the area of the shaded region?
-BARSIC- [3]

Answer:

25π - 24 cm²

Step-by-step explanation:

area of circle:

A = πr²

A = π(5²)

A = 25π

Area of triangle:

base = 6

height = 5 - 1 = 4

(1/2)(6 * 4) = 12

there are 2 triangles so unshaded area is 24 cm²

Area of shaded region = 25π - 24 cm²

6 0
4 years ago
You and two friends pay $40 for tickets. The cost was divided 3 ways in the ratio 1 : 3 : 6. How much did each person pay?
kakasveta [241]
Total units= 1+3+6
                =10
10 units= $40
1unit= $40/10
        = $4
Person 1= $4 x 1
              = $4
Person 2= $4 x 3
               = $12
Person 3=$4 x 6
               =$24
6 0
3 years ago
At a yard sale, Celia bought an electric for 85% of its original value. Celia pad $75.65 for the guitar. What was the original v
juin [17]

75.65 \div .85
3 0
3 years ago
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