3 years ago

I need help with the 3 questions on the left corner :((

Mathematics

1 answer:

ss7ja [257]3 years ago

8 0

Answer:

1. No

2. Yes

3. No

Step-by-step explanation:

-4 is equal to -4 but not bigger then -4

8.5 is bigger then -4

-16 ¾ is smaler then -4

(because it is a negative number)

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-2,-1,0,1 whichave pair of numbers has a sum of zero

Verizon [17]

-1+1=0. So your answer is -1 and 1

3 0

2 years ago

The height of five soldiers included 60inches,67inches,65inches and 64inches,if the mean of the five soldiers is 65inches what i

Nadya [2.5K]

Answer:

The last guy's height is 69 inches

Step-by-step explanation:

mean=sum of all numbers/number of numbers

There are 5 numbers in the set which means that 65 is the sum of all five numbers divided by 5. To reverse that we multiply 65 by 5 to get the sum of all of the numbers.

$65*5=325$

325 is the sum of all of the numbers so to find the missing number you add up all of the known numbers in the set and find the difference between that sum and 325.

$60+67+65+64=256$

$325-256=69$

The missing guy's height is 69 inches.

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2 years ago

Please help me with this question please

zheka24 [161]

*im sorry but I cant see the bottom number but I'll consider it as x

tan 45° = 3/x

x = 3/tan45

x is 3

hope this helps :)

5 0

3 years ago

Elmer has a collection of 300300300 fossils. Of these, 21\%21%21, percent are fossilized snail shells.

aleksandrvk [35]

I believe that they typo meant 300 fossils of which 21% are snail shells.

Since % means per one hundred...

300(21/100)=63

Elmer has 63 fossilized snail shells.

3 0

2 years ago

What is the answer to 7b-7-8b= -15

ozzi

Answer:

b=8

Step-by-step explanation:

7b-7-8b=-15

Combine like terms

-b-7=-15

Add 7 on both sides

-b=-15+7

-b=-8

Divide by -1

b = 8

8 0

2 years ago

Read 2 more answers