this one's tricky and i need some help 20 points

Answer:

first angle is 95

second angle is 95

third angle is 95

the sum of angle in a quadrilateral is 360

therefore 95+95+95°=285

to get the fourth angle=360-285=75

therefore the fourth angle is 75°

Answer:

i say 7

Step-by-step explanation:

Answer:

Step-by-step explanation:

10b + -2

or

10b - 2

8b + 2b = 10b

7 - 9 (or 9 - 7, which equals 2) = -2

you can add -2 which is

10b + -2

or subtract

10b - 2

Answer:

10b-2

Step-by-step explanation:

8b+2b is 10b. Then 7+(-9) is -2. Combine the answer to get 10b-2

Answer:

C. 50 + 80 + 2 + 8

Step-by-step explanation:

this would give you an answer 8 greater then the original equation 52+80

Answer:

18.84

Step-by-step explanation:

The diameter is 2 times the radius, so just multiply 6 by 3.14

please mark brainliest ( :

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

Let's calculate the circumference ~

[tex]\qquad \sf  \dashrightarrow \: c = \pi d[/tex]

[tex]\qquad \sf  \dashrightarrow \: c = 3.14 \times 6[/tex]

[tex]\qquad \sf  \dashrightarrow \: c =18.84 \: ft[/tex]

Answer:

30 min

Step-by-step explanation:

1 /  ( 1/20 + 1/ x) =  12

1 = 12/20 + 12/x

8/20 = 12/x

x = 12 * 20 / 8 = 30 min

Answer:

  h(x), g(x), f(x)

Step-by-step explanation:

The axis of symmetry of a parabola is the vertical line through its vertex.

__

The equation is written in vertex form:

  f(x) = a(x -h)² +k . . . . . vertex (h, k), scale factor 'a'

The vertical line through the vertex is x=h.

Your equation is ...

  f(x) = -2(x -4) +2

so (h, k) = (4, 2) and the line of symmetry is x=4.

__

The given equation can be written in vertex form:

  g(x) = 5x² -10x +7

  g(x) = 5(x² -2x) +7

  g(x) = 5(x² -2x +1) +7 -5 . . . . complete the square

  g(x) = 5(x -1)² +2

so (h, k) = (1, 2) and the line of symmetry is x=1.

__

Your problem statement tells us ...

  h(x) = -(x +2)² +2

so (h, k) = (-2, 2) and the line of symmetry is x=-2.

The coordinates of the vertex can also be read from the graph: (-2, 2).

__

The rank of the functions is the order of {-2, 1, 4}, or h(x), g(x), f(x).

Answer:

  10,071 years

Step-by-step explanation:

If 'a' is the fraction remaining, it satisfies the equation ...

  a = (1/2)^(t/5750)

Solving for t, we get ...

  log(a) = log(1/2)×t/5750

  t = 5750×log(a)/log(1/2) ≈ -19,101.09×log(a) . . . years

__

If 70.3% is lost, then 1 -0.703 = 0.297 is the fraction remaining. The age is estimated to be ...

  -19,101.09×log(0.297) ≈ 10,071 . . . years

The bones were about 10,071 years old.

Answer:

C   [tex]3 \frac{7}{8} + (-6\frac{1}{4})[/tex]

Step-by-step explanation:

+ × - = -

Example:

5 × -3 = -15

+(-5) = -5

then:

3 7/8 - 6 1/4

= 3 7/8 + (-6 1/4)

Since that is a right triangle, we can use pythagorean theorem.

[tex]c^2=a^2+b^2[/tex]

solve.

[tex]c^2=40^2+9^2\\\\c^2=1681\\\\\sqrt{c^2}=\sqrt{1681} \\\\c=41[/tex]

the value of x is 41

Answer:

4+(n-1)2

Step-by-step explanation:

Because its an arithmatic series for which the formula is

n-term=first term+(n-1)d.

where "d" is the common difference.

The angle m∠UVW can be found using angle of circumference rule in geometry. Therefore, m∠UVW = 67°

An angle at the circumference of a circle is half the angle at the centre standing on the same arc.

In other words, the angle at the centre of a circle is twice the angle at the circumference.

Therefore,

m∠UVW = 134 / 2

m∠UVW = 67 degrees

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[tex]~~~~~~~\dfrac 25 x - \dfrac 12= n(4x-5)\\\\\\ \implies \dfrac{4x}{10}- \dfrac{5}{10} = n(4x-5)\\\\\\\ \implies \dfrac 1{10}(4x-5) = n(4x-5)\\\\\\\implies n = \dfrac 1{10}~~~~~;\left[x \neq \dfrac 54 \right][/tex]

Answer:

D

Step-by-step explanation:

Factor
this is how is should be
x + 2 = 0
=> x = -2
x - 3 = 0
=> x = + 3

Answer:

it is 20 miles per gallon

The 10.547 feet up the wall will the top of the ladder be if the 11-foot ladder is placed against the wall. The ladder is on ground level at an angle of 73.5° to the horizontal.

Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.

Length of the ladder = 11 foot

The angle between ladder and horizontal = 73.5 degree

The height of the wall, the top of the ladder be(h):

From the sin ratio:

sin73.5 =  h/11

h = 11sin73.5 = 10.547 feet

Thus, the 10.547 feet up the wall will the top of the ladder be if the 11-foot ladder is placed against the wall. The ladder is on ground level at an angle of 73.5° to the horizontal.

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Answer: 76 degrees

Step-by-step explanation: 63 + 13 = 76

Answer:

14 is 269000-2500=266500

Step-by-step explanation:

Answer:

10825 mm³

Step-by-step explanation:

Volume of cylinder shaped stack

Answer:

Step-by-step explanation:

we are being told that each square is one unit.  so,  look at peak to peak and count the units.  

1,2,3,4,5,6,7

From peak to peak is 7 units, so the period is 7

Answer:

A

Step-by-step explanation:

Here [ a, b ] = [ 2, 6 ], thus

f(b) = f(6) = -  + 70 = - 64 + 70 = 6

f(a) = f(2) = - 2² + 70 = - 4 + 70 = 66

average rate of change =  =  = - 15 → A

Answer:

39,485.67

Step-by-step explanation:

Answer:

heptagon; rectangles; heptagonal prism

Step-by-step explanation:

Since the base is a heptagon (hepta- is seven sides), that gets rid of both the pentagon answers. Since the sides are all rectangles, that gets rid of the Heptagon and Triangles answer. :)

Answer:

A function table

Step-by-step explanation:

Hope this helped

Answer:

2/5

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation:

2 green / 8 total colors

2/8

Simplify to 1/4 of a chance

The angle of elevation is 35.4.

The angle formed by the line of sight and the horizontal plane for an object above the horizontal.

tan D = AB/BD

tan D = 38.5/54.13

D = 35.4

Hence, the angle of elevation is 35.4.

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Answer:

C, Negative x coordinates, positive y coordinates.

Step-by-step explanation:

Note that the original points are all in the third quadrant, i.e., sign will be (-,-). When reflected across the x axis, the y coordinate becomes negative => (x,-y) => (-,-) becomes (-,+)

Answer: D. Negative-x and Negative-y

Step-by-step explanation: quadrant one are both positive quadrant 2 is positive and negative. Quadrant 3 is negative and negative and quadrant 4 is negative and positive.

we have that

[tex]y=-x^2+36[/tex]

we know that

Is the equation of a vertical parabola open down

so

the vertex is a maximum

step 1

convert the equation of the parabola in the vertex form

[tex]y=-x^2+36[/tex]

[tex]y-36=-x^2[/tex]

the vertex (h,k) is the point (0,36)

Part a) The point on the graph where the height of the tunnel is a maximum is (0,36)

Part b) The points on the graph where the height of the tunnel is zero feet is when y=0

so

for y=0

[tex]-x^2+36=0[/tex]

[tex]x^2=36[/tex]

[tex]x=(+/-)6[/tex]

the points are (-6,0)  and (6,0)

see the attached figure

Answer:

Step-by-step explanation:

Answer: Hope this helps

Step-by-step explanation: