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WITCHER [35]
3 years ago
7

Please help, its urgent

Mathematics
2 answers:
otez555 [7]3 years ago
7 0
45.......................
krok68 [10]3 years ago
7 0

Answer:25

Step-by-step explanation:

the whole triangle equals 180

add 99+56 which gives you 155.

do 180-155 which gives you 25.

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Write the equation of the quadratic function with roots 6 and 10 and a vertex at (8,2)
Elis [28]
...6 and 10 are roots, so x – 6 and x – 10 are factors.
y = a(x – 6)(x – 10).....plug in the point (8, 2) and solve for a:
2 = a(8 – 6)(8 – 10)
2 = –4a
a = –1/2
...y = (–1/2)(x – 6)(x – 10)
...y = (–1/2)(x² – 16x + 60)
...y = (–x²/2) + 8x – 30 <<<------Answer, or:
...y = (–1/2)(x – 8)² + 2 <<<------Answer
7 0
4 years ago
Please find the area of the figure!!
Murrr4er [49]

The figure consists of a rectangle and a circle.

first lets find the sides of the triangle

sides of the triangle are 4+4=8 and 3+1=4

therefore area of the rectangle is 8*4=32

now area of semicircle =πr^2/2 = π2^2/2=2π=6.3

we have to add the area of rectangle with the area of semicircle

this is because it the given figure no part of area of circle and rectangle are in common.

therefore total area of given figure = 32+6.3=38.3

4 0
3 years ago
Which explicit formula is equivalent to a1= 1/3, an=an-1+1
Yuri [45]

The explicit rule will be an = 1/3 + (n - 1)

<h3>An explicit formula for a sequence</h3>

Given the following information

  • a1 = 1/3
  • an = an-1 + 1

a2 = a1 + 1

a2 = 4/3

For the third term

a3 = a2 + 1

a3 = 4/3 + 1

a3 = 7/3

The resulting seqence is 1/3, 4/3, 7/3

The sequence is an arithmetic sequence

a = 1/3

d = 1

The explicit rule will be an = 1/3 + (n - 1)

Learn more on explicit rule here: brainly.com/question/2059043

8 0
3 years ago
What is the vertex of the graph of this function<br> y= -(x+2) (x+4)
Shkiper50 [21]

Answer:

y=-(x+2)(x+4)

y=-(x^2+4x+2x+8)

y=-(x^2+6x+8)

y=-(x^2+4x+2x+8)

Y=-x(x+4)+2(x+4)

y=-(x+2)(X+4)

So vertex is (2,4)

4 0
3 years ago
Mhanifa can you please help me on this? I will mark brainliest!
denpristay [2]

Answer:

  • y = -4x + 7

Step-by-step explanation:

<u>Given points:</u>

  • A(-2, -2) and B(6, 0)

The perpendicular bisector passes through the midpoint.

<u>Finding the coordinates of the midpoint first:</u>

  • x = (-2 + 6)/2 = 2, y = (-2 + 0)/2 = -1

<u>Next finding the slope of AB:</u>

  • m = (0 - (-2))/(6 - (-2)) = 2/8 = 1/4

The perpendicular lines have negative-reciprocal slopes.

<u>The line will have a slope of -4 and pass through the point (2, -1)</u>

  • y  - (-1) = -4(x - 2)
  • y + 1 = -4(x - 2)         - point-slope form
  • y = -4x + 7                - slope-intercept form

4 0
3 years ago
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