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Romashka [77]
3 years ago
10

PLEASE HELP!! ABD and DBC are complementary angles. 70, what's the measurement of x?

Mathematics
2 answers:
Studentka2010 [4]3 years ago
6 0
It is 45 because complementary means 90
Phoenix [80]3 years ago
4 0
X=30, 90-70=30 Think of it as taking the degree of the angle and subtracting the number you already have
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What are the first three terms of the sequence defined by the recursive function an = an-1-(an-2-4), when a5 =-2 and a6 = 0?
Wittaler [7]

Answer:

<em>6, 10 and 8</em>

Step-by-step explanation:

Given the recursive function an = an-1-(an-2 - 4), when a5 =-2 and a6 = 0?

a6 = a5 - (a4 - 4)

0 = -2  - (14 - 4)

2 = - (a4 - 4)

-2 = a4 - 4

a4 = -2 + 4

a4 = 2

a5 = a4 - (a3 - 4)

-2 = 2  - (a3 - 4)

-2-2 = - (a3 - 4)

-4 = -(a3 - 4)

4 = a3 - 4

a3 = 4+4

a3 = 8

Also

a4 = a3 - (a2 - 4)

2 = 8 - (a2 - 4)

2-8 = - (a2 - 4)

-6 = -(a2 - 4)

6 = a2 - 4

a2 = 6+4

a2 = 10

a3 = a2 - (a1 - 4)

8 = 10 - (a1 - 4)

8-10 = - (a1 - 4)

-2 = -(a1 - 4)

2 = a1 - 4

a1 = 2+4

a1 = 6

<em>Hence the first 3 terms are 6, 10 and 8</em>

6 0
3 years ago
Read 2 more answers
What number is 20 less than 150% of 80
patriot [66]

Answer:

100

Step-by-step explanation:

"What number" means a variable, like x.

"Is" means equals.

"Less than" means subtracted from.

Percent means out of 100.

"Of" means multiplication.

x = (150/100) 80 - 20

x = 120 - 20

x = 100

5 0
4 years ago
Radius of cylinder = 5 cm
Kisachek [45]

Answer:

C  1055 04 cm

Step-by-step explanation:

We don't need to see the figure, since we know for sure the cone fits into the cylinder (smaller diameter and height).

So, we first need to calculate the volume of the cylinder, which is given by the formula:

VT = π * r² * h

VT = 3.14 * 5² * 16 = 3.14 * 400 = 1,256 cubic cm

Then we calculate the volume of the cone, which is given by:

VC = (π * r² * h)/3

VC = (3.14 * 4² * 12)/3 = (3.14 * 192)/3 = 200.96 cu cm

Then we calculate the void space left inside the cylinder by subtracting the volume of the cone from the volume of the cylinder:

NV = VT - VC = 1,256 - 200.96 = 1,055.04 cu cm

7 0
3 years ago
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3y-24 useing the greatest common factor.
Svetach [21]

Answer:

In 3y-24, 3 is the greatest common factor.

3y-24

=3(y-8)

8 0
3 years ago
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Find four consecutive even integers whose sum is 100 what are the integers
Dovator [93]

X → first

X + 2 → second

X + 4 → third

X + 4 → fourth

x + x + 2 + x + 4 + x + 6 = 100

4x + 12 = 100

4x = 88  

x = 22

x + 2 = 24

x + 4 = 26

x + 6 = 28

So your integers are 22, 24, 26, and 28.

6 0
3 years ago
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