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2 years ago

Please help ill give brainliest

Mathematics

2 answers:

Katen [24]2 years ago

8 0

Answer:

-13

Step-by-step explanation:

My bad, I did my math wrong. Its -3.

Mama L [17]2 years ago

3 0

Answer:

-(-5) - 8=

5-8= -3

Step-by-step explanation:

replace the variables with the numbers and solve it like a normal equation

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Perform the following operations and write the answers in radical form. Part A:√7+√3+√98−√18 Part B:3√5−3√11+2√121−3√90

Sveta_85 [38]

Answer:

$\sqrt{7}+\sqrt{3}+4\sqrt{2}$
$3\sqrt{5}-3\sqrt{11}+22-9\sqrt{10}$

Step-by-step explanation:

Part A ;

$\sqrt{7} +\sqrt{3} +\sqrt{98} -\sqrt{18} \\\\\sqrt{98}=7\sqrt{2}\\\sqrt{18}=3\sqrt{2}\\\\=\sqrt{7}+\sqrt{3}+7\sqrt{2}-3\sqrt{2}\\\\\mathrm{Add\:similar\:elements:}\:7\sqrt{2}-3\sqrt{2}=4\sqrt{2}\\\\=\sqrt{7}+\sqrt{3}+4\sqrt{2}$

Part B ;

$3\sqrt{5} - 3\sqrt{11} + 2\sqrt{121} -3\sqrt{90} \\\\2\sqrt{121}=22\\3\sqrt{90}=9\sqrt{10}\\\\=3\sqrt{5}-3\sqrt{11}+22-9\sqrt{10}$

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3 years ago

How do you reflect something on a coordinate plane?

nordsb [41]

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3 years ago

Order these decimals

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ValentinkaMS [17]

Answer:

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Step-by-step explanation:

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1 year ago

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Oksanka [162]

Answer:

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Step-by-step explanation:

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