Can you help me with this?

Answer:

214.08 cm²

Step-by-step explanation:

To find the whole area of an irregular polygon, you must first break it into polygons that are findable. For this figure, we can break it up into two figures, a triangles and a rectangle. To find the triangle, we must first find the height of it. To get that, we take the length of the blue line (the height of the entire figure), and subtract the height of the rectangle (9.6 cm) to  get a height of 5.7 cm for the triangle. the area formula for a triangle is 1/2 of the base multiplied by the height. To get the base of the triangle, we add the base of the rectangle to the parts of the triangle that hang past it (6.2 cm in total). 6.2 + 12.8 gives us 19 cm. Now we have (19 x 9.6) divided by 2 to give us 91.2 cm². The area formula for a quadrilateral is just the base (12.8 cm) multiplied by the height (9.6 cm), to give us 122.88 cm². Add the area of the rectangle to the area of the triangle to get our answer, 214 cm².

*So sorry for the first answer, my bad.

Answer: i said this first. I hope this helps.

2x = 5

x = 5/2

y + 1.8 = 14.7

Y = 12.9

6 = 1/2z

z = 12

3 1/4 = 1/2 + w

w = 11/4= 2.75

2.5t = 10

t=4

Answer:

1.  x = 2.5

2. y = 12.9

3.  z=3

4. w= 2 3/4

5. t= 4

Step-by-step explanation:

1.  5 DIVIDED BY 2= 2.5

2.  14.7 - 1.8 = 12.9

3.  1/2 * 3 = 6

4.  1/2 + 2 3/4 = 3 1/4

5.  10/ 2.5 = 4

Answer:

Step-by-step explanation:

since it starts at 62 and finishes at 150 u can find out that the increase in temp is 150F and since it increases by 8 every minute u can come to find that the increase in temp (150) divided by the amount it increases 8 is 18.75 which is the amount of minutes it took

Answer:

C. He should roll the number cube 200 more times.

Step-by-step explanation:

Answer:

59-69=-10,     1/2 of 10=5

so the answer is 5 degrees Fahrenheit

Step-by-step explanation:

The 59-69 came from December being 69 degrees less than junes temperature, and the 1/2 of 10 came from February being half as cold as December's temperature.

Hope this helped!

Answer:

February's Average Temperature 5º

Step-by-step explanation:

December Temp is 69º colder than June so add June's Temp and December's together 69º - 59º  = 10º

December's Temperature is 10º so if February is ½ as cold then we mutiply ½ by 10º which is 5º.  (You could also divide 10 by 2)

Frebruary's Temp is 5º

Answer:

2.19

Step-by-step explanation:

Answer:

2.19 (c)

Step-by-step explanation:

(-3.5) - (-1.31) = 2.19

We know the difference is how far apart the numbers are we can subtract to find out the answer is 2.19

Answer: letter D. Most of the mass of an atom comes from elctron cloud

Step-by-step explanation: your welcome and have a good day

Answer:

32:68

Step-by-step explanation:

Answer:

If auntie cant correct her grammer, how can she talk to the manager about what the fish need to survive??

Step-by-step explanation:

Answer:

C - 36.

It’s easy

Step-by-step explanation:

Answer:

I am pretty sure the answer is 5400.

Step-by-step explanation:

You multiply 10, 12 and 15 together to equal 1800 and multiply that by 3 to equal 5400.

Answer:

D. CBA

Step-by-step explanation:

If b was the third point, then it would be C. ACB.

AB+BC=ABC or CBA

The answer is 32.5%

and if you need it in decimal form, it would be,

[tex]0.325[/tex]

Answer:

Step-by-step explanation:

I'm not smart but I think it's b SRRY if wrong God bless

Answer:

[tex]f(x) = 3^x[/tex] --- Function A

[tex]f(x) = x^2 - 5[/tex] --- Function B

[tex]f(x) = 18x -6[/tex] --- Function C

Step-by-step explanation:

Solving (a): Equation of Function A

An exponential equation is represented as:

[tex]y = ab^x[/tex]

From the graph of function A,

[tex]x = 0\ when\ y = 1[/tex]

[tex]x = 1\ when\ y = 3[/tex]

For: [tex]x = 0\ when\ y = 1[/tex]

[tex]y = ab^x[/tex] becomes

[tex]1 = ab^0[/tex]

[tex]1 = a[/tex]

[tex]a =1[/tex]

For: [tex]x = 1\ when\ y = 3[/tex]

[tex]y = ab^x[/tex] becomes

[tex]3 = a*b^1[/tex]

[tex]3 = a*b[/tex]

Substitute 1 for a

[tex]3 = 1*b[/tex]

[tex]3 = b[/tex]

[tex]b = 3[/tex]

[tex]y = ab^x[/tex] becomes

[tex]y = 1*3^x[/tex]

[tex]y = 3^x[/tex]

Replace y with f(x)

[tex]f(x) = 3^x[/tex]

Solving (b): Equation of Function B

A quadratic equation is represented as:

[tex]y = ax^2 + bx + c[/tex]

From the table of function B,

[tex]x = 3\ when\ y =4[/tex]

[tex]x = 5\ when\ y =20[/tex]

[tex]x = 6\ when\ y =31[/tex]

For: [tex]x = 3\ when\ y =4[/tex]

[tex]y = ax^2 + bx + c[/tex] becomes

[tex]4 = a*3^2 + b*3 + c[/tex]

[tex]4 = a*9 + 3b + c[/tex]

[tex]4 = 9a + 3b + c[/tex]

For [tex]x = 5\ when\ y =20[/tex]

[tex]y = ax^2 + bx + c[/tex] becomes

[tex]20 = a*5^2 + b*5 + c[/tex]

[tex]20 = a*25 + b*5 + c[/tex]

[tex]20 = 25a + 5b + c[/tex]

For [tex]x = 6\ when\ y =31[/tex]

[tex]y = ax^2 + bx + c[/tex] becomes

[tex]31 = a*6^2 + b*6 + c[/tex]

[tex]31 = a*36 + b*6 + c[/tex]

[tex]31 = 36a + 6b + c[/tex]

So, we solve for a, b and c in:

[tex]4 = 9a + 3b + c[/tex]

[tex]20 = 25a + 5b + c[/tex]

[tex]31 = 36a + 6b + c[/tex]

Make c the subject in [tex]4 = 9a + 3b + c[/tex]

[tex]c = 4 - 9a - 3b[/tex]

Substitute [tex]c = 4 - 9a - 3b[/tex] in [tex]20 = 25a + 5b + c[/tex] and [tex]31 = 36a + 6b + c[/tex]

[tex]20 = 25a + 5b + c[/tex] becomes

[tex]20 = 25a + 5b + 4-9a-3b[/tex]

Collect Like Terms

[tex]-4+20 = 25a -9a+ 5b -3b[/tex]

[tex]16 = 16a+ 2b[/tex]

Divide through by 2

[tex]8 = 8a + b[/tex]

[tex]c = 4 - 9a - 3b[/tex]

[tex]31 = 36a + 6b + c[/tex] becomes

[tex]31 = 36a + 6b + 4 - 9a - 3b[/tex]

Collect Like Terms

[tex]-4+31 = 36a - 9a+ 6b - 3b[/tex]

[tex]27 = 27a+ 3b[/tex]

Divide through by 3

[tex]9 = 9a + b[/tex]

Solve for a and b in: [tex]8 = 8a + b[/tex] and [tex]9 = 9a + b[/tex]

Subtract both equations:

[tex]8 - 9 = 8a - 9a + b - b[/tex]

[tex]8 - 9 = 8a - 9a[/tex]

[tex]-1 = -a[/tex]

Divide both sides by -1

[tex]1 = a[/tex]

[tex]a = 1[/tex]

Substitute 1 for a in [tex]9 = 9a + b[/tex]

[tex]9 = 9*1 + b[/tex]

[tex]9 = 9 +b[/tex]

Subtract 9 from both sides

[tex]9-9=9-9+b[/tex]

[tex]0=b[/tex]

[tex]b = 0[/tex]

Substitute [tex]b = 0[/tex] and [tex]a = 1[/tex] in [tex]c = 4 - 9a - 3b[/tex]

[tex]c = 4 - 9*1-3*0[/tex]

[tex]c = 4 - 9-0[/tex]

[tex]c = -5[/tex]

So, the equation is:

[tex]y = ax^2 + bx + c[/tex]

[tex]y=1*x^2 +0*x-5[/tex]

[tex]y=x^2 -5[/tex]

Replace y with f(x)

[tex]f(x) = x^2 - 5[/tex]

Solving (c): Equation of Function C

This is calculated using:

[tex]f(x) =a + (x -1)d[/tex]

Where

[tex]a = 12[/tex] -- the first term

d = the difference between successive terms

[tex]d = 30 -12 = 48-30 = 66 -48[/tex]

[tex]d =18[/tex]

So, we have:

[tex]f(x) =a + (x -1)d[/tex]

[tex]f(x) = 12 + (x - 1)*18[/tex]

Open bracket

[tex]f(x) = 12 + 18x - 18[/tex]

Collect Like Terms

[tex]f(x) = 18x - 18+12[/tex]

[tex]f(x) = 18x -6[/tex]

Answer: 1 only

Step-by-step explanation:

because u got 60

More than one different triangle can be made using the given condition, therefore, the last option is correct.

An equiangular triangle is one with three equal sides and three equal angles, all of which are measured at 60 degrees.

Given that, each angle of the triangle measures 60°.

Therefore, the triangle is an equiangular triangle.

There exist triangles with the same angle measure of 60° each, but with different side lengths.

Hence, more than one different triangle can be made using the given condition, therefore, the last option is correct.

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Answer:

quadrant 2 or II

Step-by-step explanation:

hope this helps good luck!

Answer:

Quadrant 2 or II

Step-by-step explanation:

She is correct in a way that a parallelogram can be made into rectangle.

Parallelogram is a type of polygon with four sides, four angles and four vertices. It is a type of Quadrilateral.

Opposite sides are parallel, and the opposite sides and opposite angles are equal.

Rectangle is a two dimensional figure which has four sides and four angles and all the angles are right angles.

The difference between a rectangle and a parallelogram is that all the angles are not right angles in parallelogram.

Area of a rectangle = Length × Width

That is the product of two opposite side lengths.

If a parallelogram is taken, then, it can be made into a rectangle by joining perpendicular from the endpoint of longer side to the opposite side and taking the resulting triangle to other side.

Then it becomes a rectangle where length is the base length of parallelogram and width is the height of the parallelogram.

Hence Molly is correct in a way that a parallelogram can be made into rectangle.

Learn more about Area here :

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Answer:length=11 and the width is 7

Step-by-step explanation:

To find the area of a rectangle it’s widthxlength and the only numbers that make up 77 are 11 and 7 and 77and 1. So it would have to be 11 and 7 also if you plug it in (2(7)-3=11 and that works. Hope this helps <3

Answer:

quadrant 3

Step-by-step explanation:

Cuz x and y are in the negative if they’re both less than 0

Answer:

Step-by-step explanation:

"<" means that it is less than "__" . X < 0 means the X value would be a negative . Y < 0 also means the same . This shows that the value of both X and Y are negatives . So the only place they belong is Quadrant 3 .

Answer:

Step-by-step explanation:

equation:

Y=MX+B

Answer:

Y =3X+4

M = slope

B= Y intercept

Answer:

C.7 weeks

Step-by-step explanation:

Subtract 60 on both sides then you get: 30w=210, then divide both sides and you get w=7, so it'll take 7 weeks

Answer:

C. 7 weeks

Step-by-step explanation:

30w + 60 = 270

        - 60    -60

subtract 60 from both sides of the equal sign.

30w = 210

We need to isolate the variable, which is (w), so divide both sides by 30.

w = 7

It will take 7 weeks for Uma to save enough money to buy the video game system. So the answer is (c).

Answer:

A

Step-by-step explanation:

:)

Answer:

He will need 60 glass tiles

Step-by-step explanation:

Function, Gerald should enter to the computer is g(x) = -2(x + 3)² - 4

Correct option is C.

Transformations are changes done in the shapes on a coordinate plane by rotation or reflection or translation.

Given,

Parent function f(x) = x²

g(x) = ?

for reflection over x - axis,

g(x) = -f(x)

g(x) = -x²

For vertical stretch of factor a.

g(x) = a f(x)

g(x) = -2x²

For right shift by a

g(x) = f(x + a)

g(x) = -2(x + 3)²

Shift down by b units

g(x) = f(x) - b

g(x) = -2(x + 3)² - 4

Hence, g(x) = -2(x + 3)² - 4 is the function, Gerald should enter.

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