3 years ago

Bonjour,est ce que vous pouvez me faire cette exo svp

Mathematics

1 answer:

saveliy_v [14]3 years ago

7 0

Salut. BC²=AC²-AB² , BC=√((10)²-(8)²) , BC=√(100-64) , BC=√36 , BC=6cm. J'espere t,avoir aidé

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Rzqust [24]

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Step-by-step explanation:

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3 years ago

Without using a calculator, match each expression to the correct point.<br><br> Point<br> Expression

lyudmila [28]

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Step-by-step explanation:

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2 years ago

The sum of two numbers is 87. if three times the smaller number is subtracted from the larger number the result is seven. find t

Stolb23 [73]

$\left \{ {{a+b=87} \atop {a-3b=7}} \right.

$

a-3b=7
a=7+3b

a+b=87
(7+3b)+b=87
7+4b=87
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a=7+3b
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3 years ago

Find the sum.<br> 48 + 45 + 42+...+(-81) + (-84)

Agata [3.3K]

Answer:

look below

Step-by-step explanation:

i dont know what that +... thing is

but when youre adding the negatives youre really just adding that number so this is just

48+45+42+81+84

45+42 is 87

now we have

48 + 87 + 81 + 84

87 + 81 is 168

48 + 84 is 132

now we have

168 + 132 and that is exactly 300

again dont know what the ... is so cant help you there

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2 years ago

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Select the factors of x2 - 14x + 49

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3 years ago

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