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3 years ago

9

Help me with this!!!!!

1 answer:

myrzilka [38]3 years ago

6 0

Answer:

40

Step-by-step explanation:

The formula for a rhombuses area is (pq)/2. If we fill in the values, we get 80/2 = 40

Hope this helped! If this is incorrect, please tell me and I will fix it as soon as possible!

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If m<2=x+8 and m<3=2x+7, what is m<2?<br> A.57<br> B.25<br> C.30<br> D.33

Vilka [71]

< 2 + < 3 + 90 = 180
< 2 = x + 8
< 3 = 2x + 7

x + 8 + 2x + 7 + 90 = 180
3x + 105 = 180
3x = 180 - 105
3x = 75
x = 75/3
x = 25

< 2 = x + 8 = 25 + 8 = 33 <==== answer is D
< 3 = 2x + 7 = 2(25) + 7 = 50 + 7 = 57

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4 years ago

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At 9:00 on Saturday morning, two bicyclist pass each other on a bicycle path. The bicyclist heading north is riding 5km/h faster

natita [175]

Answer:

Step-by-step explanation:

One rider's rate is x....the other is x+4

Once they pass each other, they travel for 1.5 hrs...and the combined distance they travel = 39 km

So....Rate x Time = Distance....and we have

x(1.5) + (x+4)(1.5) = 39 simplify

1.5x + 1.5x + 6 = 39

3x + 6 = 39 subtract 6 from both sides

3x = 33 divide by 3 on both sides

x = 11 km/hr this si the slower rider's rate

x + 4 = 11 + 4 = 15 km/hr and this is the faster rider's rate

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4 years ago

Which of the following correctly shows the property of distribution?

Elan Coil [88]

B is correct.
A. 5(x-2)= 5x-10
B. 4(x+3)= 4x + 12
C. 3(x+1)= 3x+3
D. 2(x+7) = 2x + 14

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3 years ago

Identify the polygon with vertices A(5,0), B(2,4), C(−2,1), and D(1,−3), and then find the perimeter and area of the polygon. HE

inn [45]

Answer:

Part 1) The polygon is a square

Part 2) The perimeter is equal to $20\ units$

Part 3) The area is equal to $25\ units^{2}$

Step-by-step explanation:

we have

$A(5,0), B(2,4), C(-2,1),D(1,-3)$

Plot the points

see the attached figure

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

Find the distance AB

$A(5,0),B(2,4)$

substitute in the formula

$d=\sqrt{(4-0)^{2}+(2-5)^{2}}$

$d=\sqrt{(4)^{2}+(-3)^{2}}$

$d=\sqrt{25}$

$AB=5\ units$

Find the distance BC

$B(2,4), C(-2,1)$

substitute in the formula

$d=\sqrt{(1-4)^{2}+(-2-2)^{2}}$

$d=\sqrt{(-3)^{2}+(-4)^{2}}$

$d=\sqrt{25}$

$BC=5\ units$

Find the distance CD

$C(-2,1),D(1,-3)$

substitute in the formula

$d=\sqrt{(-3-1)^{2}+(1+2)^{2}}$

$d=\sqrt{(-4)^{2}+(3)^{2}}$

$d=\sqrt{25}$

$CD=5\ units$

Find the distance AD

$A(5,0),D(1,-3)$

substitute in the formula

$d=\sqrt{(-3-0)^{2}+(1-5)^{2}}$

$d=\sqrt{(-3)^{2}+(-4)^{2}}$

$d=\sqrt{25}$

$AD=5\ units$

we have that

AB=BC=CD=AD

Find the distance BD (diagonal)

$B(2,4),D(1,-3)$

substitute in the formula

$d=\sqrt{(-3-4)^{2}+(1-2)^{2}}$

$d=\sqrt{(-7)^{2}+(-1)^{2}}$

$BD=\sqrt{50}\ units$

<em>Verify if the polygon is a square</em>

If the triangle BDA is a right triangle, then the polygon is a square

Applying the Pythagoras theorem

$BD^{2}=AD^{2}+AB^{2}$

substitute

$(\sqrt{50})^{2}=5^{2}+5^{2}$

$50=50$ -----> is true

so

The triangle BDA is a right triangle

therefore

The polygon is a square

<em>Find the Area of the polygon</em>

The area of a square is equal to

$A=b^{2}$

we have

$b=5\ units$

$A=5^{2}=25\ units^{2}$

<em>Find the perimeter of the polygon</em>

The perimeter of a square is equal to

$P=4b$

we have

$b=5\ units$

$P=4(5)=20\ units$

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3 years ago

Find the area of a patio shaped like the figure shown below with a length of each square equal to one meter. Please answer asap.

Mrrafil [7]

Answer:If my calculations are correct and my rounding I would show you my work but I cant upload the picture but I think about

38

Step-by-step explanation:

I=Hope I helped if so can I please have brainliest :)

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3 years ago

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