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GrogVix [38]
3 years ago
12

Helppp what r the answers??

Mathematics
1 answer:
Semmy [17]3 years ago
5 0
The first one is B and the second one is D
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The area A of a triangle with base b and height h is given by A = = bh. Find the area when b = 18 m (meters) and h = 30 m.
Pie

Answer:

Area = 270m^2

Step-by-step explanation:

Given

A = \frac{1}{2}bh

b = 18m

h = 30m

Required

Solve for A

Simply substitute 18 for b and 30 for h

A = \frac{1}{2}bh

A = \frac{1}{2} * 18 * 30

A = 270

Hence:

The area is

Area = 270m^2

6 0
3 years ago
The line 10x + py = q is a tangent at the point (5, 4) in another circle with centre
Monica [59]

Answer:

  (p, q) = (8, 82)

Step-by-step explanation:

When a circle is centered at the origin, the radius to point (a, b) will have slope m = b/a. The tangent is perpendicular to the radius, so the tangent at point (a, b) will have slope -a/b. In point-slope form, the equation of the tangent line will be ...

  y -k = m(x -h) . . . . . point-slope equation of line with slope m through (h, k)

  y -b = (-a/b)(x -a)

Rearranging this to standard form, we have ...

  b(y -b) = -a(x -a)

  by -b² = -ax +a²

  ax +by = a² +b²

__

For (a, b) = (5, 4), the standard form equation of the tangent can be written ...

  5x +4y = 5² +4² = 41

Your given equation has an x-coefficient that is twice the value shown in this equation, so we need to multiply this equation by 2:

  2(5x +4y) = 2(41)

  10x +8y = 82

Comparing to 10x +py = q, we see that ...

 p = 8

  q = 82

4 0
2 years ago
What is the sign of 48\dfrac29 + \left(-39\dfrac89\right)48 9 2 ​ +(−39 9 8 ​ )48, start fraction, 2, divided by, 9, end fractio
lapo4ka [179]

Answer:

C

Step-by-step explanation:

8 0
3 years ago
What is the GCF of the 48and16
zavuch27 [327]
The GCF would be 16.
6 0
3 years ago
Read 2 more answers
Evaluate 18 divided by y=2.
QveST [7]

first you put 18/y=2

you multiply by 18 to get y=36

your answer is 36, y=36

7 0
3 years ago
Read 2 more answers
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