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konstantin123 [22]
3 years ago
10

Can someone please help me please

Mathematics
2 answers:
irina1246 [14]3 years ago
8 0

Answer:

i think it would be C

Step-by-step explanation:

just add all the squares

HACTEHA [7]3 years ago
5 0

Answer:

the answer is 50 square ft bc i counted the squares and i got 50

Step-by-step explanation:

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The sides of a triangle are x,x+1,2x-1 and its area is x root 10. Find the value of x
Marianna [84]
<span>You can use Heron's formula to solve this problem.

</span>A= \sqrt{s(s-a)(s-b)(s-c)} , where A is the area; a,b,с are the sides;  s<span> is the </span>semiperimeter<span> of the triangle
</span>s= \frac{a+b+c}{2}

<span>According to conditions:
</span>a = x
b = x+1
с = 2x-1

<span>Calculate the semiperimeter:
</span>s= \frac{x+x+1+2x-1}{2} = \frac{4x}{2}=2x

<span>Now we can compose and solve the equation according to Heron's formula:
</span>\sqrt{2x(2x-x)(2x-(x+1))(2x-(2x-1))}=x \sqrt{10}   \\  \sqrt{2x(x)(2x-x-1)(2x-2x+1)}=x \sqrt{10} \\  \sqrt{2x^2(x-1)(1)}=x \sqrt{10} \\  \sqrt{2x^3-2x^2}=x \sqrt{10}  \  \  \ |()^2 \\ 2x^3-2x^2=10x^2 \\ 2x^3-2x^2-10x^2=0 \\ 2x^3-12x^2=0 \ \ |:2 \\ x^3-6x^2=0 \\ x^2(x-6)=0 \\  \\ x^2=0 \\ x=0 \ \ \ \O \\ or \\ x-6=0 \\ x=6

<span>As a result, x = 6 is your answer.
 
I hope this helped.</span>
7 0
3 years ago
Find the cost per square meter of the following grass seed. Round your answer to the nearest cent.
Nadya [2.5K]

32 centis the answer to your question all you do is divide 460 into 14.72 and you'll have your answer

6 0
3 years ago
The local grocery store wants to know if the shoppers prefer Crest or Colgate toothpaste. The store gives all of its shoppers a
ch4aika [34]

i think the answer is letter C

5 0
3 years ago
Helps are really appreciated!!
Nastasia [14]

Answer:

a) 58.24 square centimeters

b) 5cm

Step-by-step explanation:

a) Area of a parallelogram

The formula for the Area of a parallelogram = Base × Height

Height : 5.2cm

Base : 11.2cm

Area = 5.2 cm × 11.2cm

= 58.24 square centimeters

b) Volume of a cuboid

The formula for the Volume of a cuboid = Length × Width × Height

7cm = Width

3cm = Length

y = Height

Volume = 105cm³

We are to find y

Hence,

105cm³ = 7cm × 3cm × y

y = 105cm³/7cm × 3cm

y = 5cm

8 0
3 years ago
GIven AB is Perpendicular Bisector of IK
I am Lyosha [343]
Since AB is the bisector, it divides the segment IK into two equal parts.
This means that IB and BK are equal because B is the halfway point.

C is the answer.
4 0
3 years ago
Read 2 more answers
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