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3 years ago

What is the length of BC in the right triangle below

Mathematics

2 answers:

laiz [17]3 years ago

6 0

122. Brainliest please???

Veseljchak [2.6K]3 years ago

5 0

HOPE it helps!!!!!!!!!!!!
plz mark as a brainliest answer!!!!!!!!

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The function models the number of accidents

Ainat [17]

Answer:

f(60)=280

Step-by-step explanation:

f(x)=0.4x²-36x+1,000

x=60→f(60)=0.4(60)²-36(60)+1,000

f(60)=0.4(3,600)-2,160+1,000

f(60)=1,440-2,160+1,000

f(60)=280

This mean that a driver of 60 years old will have 280 accidents per 50 million miles driven.

6 0

4 years ago

Pls help! <br> and a reason.

Rasek [7]

Answer:

$\angle BDA = 72^{\circ}$

$\angle DAB = 36^{\circ}$

$\angle BDC = 108^{\circ}$

$\angle BCD = 36^{\circ}$

$\angle DBC = 36^{\circ}$

Step-by-step explanation:

Given

$\angle ABD = 72^{\circ}$

Required

Determine the missing angles

Since AB = AD, then:

$\angle ABD = \angle BDA$ --- Base angles of an isosceles triangle

Hence:

$\angle ABD = \angle BDA = 72^{\circ}$

$\angle ABD + \angle BDA + \angle DAB = 180^{\circ}$ --- angles in a triangle

$72^{\circ} + 72^{\circ} + \angle DAB = 180^{\circ}$

$144^{\circ} + \angle DAB = 180^{\circ}$

Collect Like Terms

$\angle DAB = 180^{\circ} - 144^{\circ}$

$\angle DAB = 36^{\circ}$

$\angle BDA + \angle BDC = 180^{\circ}$ --- angle on a straight line

$72^{\circ} + \angle BDC = 180^{\circ}$

$\angle BDC = 180^{\circ} - 72^{\circ}$

$\angle BDC = 108^{\circ}$

Since ABC is isosceles, then:

$\angle DAB = \angle BCD = 36^{\circ}$ --- base angle of isosceles

$\angle BCD = 36^{\circ}$

Lastly:

$\angle BCD + \angle BDC + \angle DBC = 180^{\circ}$

$36^{\circ} + 108^{\circ} + \angle DBC = 180^{\circ}$

$\angle DBC = 180^{\circ} - 36^{\circ} - 108^{\circ}$

$\angle DBC = 36^{\circ}$

<em>See attachment</em>

3 0

3 years ago

Find the volume of the cone shown. Round your answer to the nearest hundredths.

olchik [2.2K]

Answer:

25.13 cm³

Step-by-step explanation:

Volume of a cone or pyramid is:

V = ⅓ A h

where A is the area of the base and h is the height.

V = ⅓ π r² h

V = ⅓ π (2 cm)² (6 cm)

V = 8π cm³

V ≈ 25.13 cm³

6 0

4 years ago

Calculate the approximate length of each side of ΔABC with coordinates A(1, 1), B(4, 4), and C(5, 1). Then, classify the triangl

Kay [80]

Step-by-step explanation:

Line AB = sqrt18 = 4.24

Line BC = sqrt10 = 3.16

Line AC = 4

Since the triangle cannot be isosceles or equilateral, the best option here is scalene.

4 0

3 years ago

Read 2 more answers

Jaxon Rollison

faust18 [17]

Answer:

6200

Step-by-step explanation:

first find how much she would make purely based on hours worked:

8x40 = 320 dollars

next subtract this from total on her paycheck so 692-320 is 372

we know that 372 is 6% of a number so...

$\frac{6}{100}$ x = 372

$\frac{6x}{100}$ = 372

6x= 37200(100)

x=6200 $ divide by 6

so she sold $6200 worth of merchandise to earn $372 of commission

3 0

3 years ago