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4 years ago

Help please!!!!! big assignment grade

Mathematics

1 answer:

Evgesh-ka [11]4 years ago

6 0

Answer:

Step-by-step explanation:

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The perimeter of this shape is 29 cm.<br> What the value of x?

lesya692 [45]

Answer:

X=7

Step-by-step explanation:

So first add them all up

x-2+2x+x+3=4x+1

4x+1=29

4x=28

x=7

4 0

3 years ago

Please its very urgent :( Name five whole numbers that can be expressed as the difference of two perfect squares. Show the math!

Tatiana [17]

Answer:

9, 17, 3, 1600, 11

Step-by-step explanation:

Difference of two perfect squares:

$a^2-b^2=(a-b)(a+b)$

It seems that you want some

$x=a^2-b^2, x \in \mathbb{Z}_{\ge 0}$

Note: there's no official symbol for the set of whole numbers, I've already seem $\mathbb{W}, \mathbb{Z}^+$ , as well.

$5^2-4^2=25-16=9$

There are infinitely many numbers that can satisfy the condition given.

The only condition is that $a\geq b$ , once we are considering whole numbers and not integers.

$x_{1}=5^2-4^2=25-16=9$

$x_{2}=9^2-8^2=81-64=17$

$x_{3}=2^2-1^2=4-1=3$

$x_{4}=50^2-30^2=2500-900=1600$

$x_{5}=6^2-5^2=36-25=11$

3 0

3 years ago

Write the proportion 5.5 hours is to 4.5hrs as 7.5 hours in to 60hours

TEA [102]

So the proportion would go as follows

5.5. 7.5
=
4.5. 60

To solve this you just cross muliply and divide.
I hope this helps you

4 0

3 years ago

I will give you brainliest if you actually help me explain this in words :,(

just olya [345]

By representing radicals as numbers with rational exponents, the properties of rational exponents can be used to simplify statements containing radicals or rational exponents. This allows you to apply the same rational exponent qualities to them.

<h2>☆彡Hanna</h2>

#CarryOnLearning

3 0

3 years ago

Read 2 more answers

Hello there are two questions in the link's if both were solved that would be awesome.

Stels [109]

Answer:

$\frac{x^{\frac{5}{6}} }{x^{\frac{1}{6}} } = x^{(\frac{5}{6} -\frac{1}{6}) }= x^{\frac{4}{6} }\\\sqrt{x} . \sqrt[4]{x} = x^{\frac{1}{2} } . x^{\frac{1}{4} } = x^{(\frac{1}{2} +\frac{1}{4}) } = x^{\frac{3}{4}$

7 0

3 years ago