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Rom4ik [11]
3 years ago
12

If dB=4 and dc=6 find ad

Mathematics
2 answers:
Neporo4naja [7]3 years ago
7 0
See the attached figure
DB = 4 and DC = 6 , We need to find AD

Using <span>Euclid's theorem for the right triangle
</span><span>
</span><span>∴ DB² = AD * DC
</span><span>
</span><span>∴ 4² = AD * 6
</span><span>
</span><span>∴ 6 AD = 16
</span><span>
</span><span>
</span><span>∴ AD = 16/6 = 8/3 ≈ 2.67
</span>

ikadub [295]3 years ago
5 0

Answer:

AD=2,667

Step-by-step explanation:

Given that ABC is a right triangle, right angled at B

BD is the altitude

Since DB and DC are given we can find tan c using right triangle BCD

tan c = \frac{DB}{DC} =\frac{4}{6}

Angle ABD is complement of angle A

In triangle ABC , C is complement of angle A

Hence C = angle ABD

tan ABD = tan C =\frac{AD}{DB} =\frac{AD}{4}

Simplify to get

AD = 4tanC=4(\frac{4}{6} )\\=\frac{8}{3}

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bazaltina [42]

Answer: It has no solution.


Step-by-step explanation:

3x - 12 - 4 = 3x + 4 - 4

3x - 8 = 3x

3x - 8 - 8 = 3x - 8

we can't subtract 3x-8

Doesn't add up; they need to have one solution or more for it to work.

7 0
3 years ago
a painter bought 8 gallons of paint just enough to cover 2 rooms. One room is twice the size of the other and requires only 2 co
e-lub [12.9K]
So, he's got 8 gallons of paint, to paint the two rooms, of the two rooms, one is twice as big as the other

now, "x" is how many gallons to paint the larger room with only one coat, however, the larger room uses 2 coats, so, the larger room uses 2x of paint
now, the client declined to paint the smaller one

so hmmm as I read... well, we dunno how many coats will go to the smaller room for one, we know the larger will use 2 coats, or 2x.. if we assume the smaller room was going to use say 1 coat or 1/2x

then one can say the painter bought enough for both rooms, 1coat for the small one and 2coats for the larger one

so, the paint the larger room, you'll 2x of paint, for 2coatsand to paint the smaller room, you'll need 1/2 x, because x gallons is how much is needed for the larger room, but the larger room is twice as big, thus the smaller room uses 1/2 of that in gallons

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3 0
3 years ago
Read 2 more answers
A b c or d. use pic to solve
Neporo4naja [7]

Answer:

In Heather's solution to the problem, she wrote and solved an equation.

Her work is:

Step 1: 1.08(x +9.01 +0.98 +5.01) = 21.87

Solving like terms

1.08(x+15}=21.87

dividing both side by 1.08

we get

x+15=21.87/1.08

x+15=20.25

subtracting both side by 13.9198

x=20.25-15

x=5.25

According to correction

;

<u>Option 1st</u>

<u>yes,it is correct</u>

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