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Gelneren [198K]
3 years ago
7

I need some help, an equation would do, will give you the Brainliest answer. Thank you!

Mathematics
1 answer:
kipiarov [429]3 years ago
6 0
They will need 2 moving trucks
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Is finding the mean weight of heart-disease patients in a study an example of data gathering?
Leviafan [203]

I would think so since you have to weigh each person and then add all the weights together and then divide this number by the total number of people weighed.

Would probably mostly hinge on the actual weighing part I think for the data gathering.

5 0
3 years ago
Yesterday the student councils bank account balance was -$54.31. Today the balance is $65.10. What is the change in dollars in t
uysha [10]
-$69.68 is your answer if I hope that this is correct.
3 0
3 years ago
How can i put the number 103,727,495 in expanded form
tia_tia [17]
How can i put the number 103,727,495 in expanded form
You can put the number 103, 727,495 in expanded form by:
<span><span>1.       </span>100, 000, 000 + 3,000, 000 + 700,000 + 20, 000 + 7, 000 + 400 + 90 + 5</span>

Which in words is.

<span><span>1.       </span>One hundred three million seven hundred twenty seven thousand four hundred ninety-five </span>



7 0
3 years ago
Can someone answer these questions ? thank you
Naya [18.7K]

Answer:

Step-by-step explanation:

12a)To rationalize the denominator, multiply the denominator and numerator by √5.

\frac{15}{\sqrt{5}}=\frac{15*\sqrt{5}}{\sqrt{5}*\sqrt{5}}\\\\=\frac{15\sqrt{5}}{5}\\\\=3\sqrt{5}

b) (a+b)² = a² + 2ab + b²

(1 +√3)² = 1² + 2*1*√3 + (√3)²

= 1 + 2√3 + 3

= 4 + 2√3

a = 4 ; b =2

13) (a + b)(a - b) = a² - b²

\frac{(6-\sqrt{5})(6+\sqrt{5})}{\sqrt{31}}=\frac{6^{2}-(\sqrt{5})^{2}}{\sqrt{31}}\\\\ =\frac{36-5}{\sqrt{31}}\\\\=\frac{31}{\sqrt{31}}\\\\=\frac{31*\sqrt{31}}{\sqrt{31}*\sqrt{31}}\\\\=\frac{31\sqrt{31}}{31}\\\\=\sqrt{31}

5 0
4 years ago
What is the sine of
Artyom0805 [142]
XZ = square root (16^3 + 63^2)
XZ = square root (256 + 3969)
XZ = square root (4225)
XZ = 65

sin(Z) = 16 / 65

answer is A. 16/65
7 0
3 years ago
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