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3 years ago

I really need help on this question! Thank you!

Mathematics

2 answers:

Korolek [52]3 years ago

7 0

The answer for your question is A

KIM [24]3 years ago

5 0

Answer:

Step-by-step explanation:

We know the following:

$OE=5\\\\FG=4\\\\EF=8\\\\$

so the segment EF is equal to

$EF=EG+GO+OF\\\\$

and here we can do a trick :)

$EF=(EG+GO)+GO+(OF+OG)-2GO\\\\$

you see it's the same

$EF=EO-GO+FG\\\\$

now we plug the values given

$8=5-GO+4\\\\8=9-GO\\\\GO=9-8\\\\GO=1$

so it's option A

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I need help with this one it’s only 2 questions

saw5 [17]

Answer:

Step-by-step explanation:

Ok so first of all start off with the entire percentage of the circle, also known as 100%, then add the remaining percantages,

48+9+7+5= 69

Subract 100% by 61

Answer: 31

7 0

3 years ago

You are in charge of drinks for a community barbecue. You need to supply at least 120 cups of beverage to provide enough for the

Allushta [10]

5 gallons of lemonade equals to 80 cups. 64 Fl Oz of fruit juice equals to 8 cups. 80 plus 8 is only 88. You need 32 more.

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3 years ago

Find the area of a parallelogram with base b and height h. b = 87 cm h = 18.6 cm A.105.6 cm2 B.2 211.2 cm2 C809.1 cm2 D1,618.2 c

Bingel [31]

I hope this helps you

Area of parallelogram =base×height

Area =87×18,6

Area =1618,2

5 0

4 years ago

PLZ HELP! 20 POINTS!

agasfer [191]

Answer:

a) The error is that, the initial value is n=1 NOT n=3

b) The sum is $a_n=a_{n+1}+5=192$

c)The explicit formula is $a_n=5n+3$

The recursive formula is $a_n=a_{n+1}+5$ ,

Step-by-step explanation:

The given arithmetic series is 8 + 13 + ... + 43.

The first term is $a_1=8$ , the common difference is $d=13-8=5$

The nth term is given by:

$a_n=a_1+d(n-1)$

We substitute the values to get:

$a_n=8+5(n-1)\\a_n=8+5n-5\\\\a_n=3+5n$

To find how many terms are in the sequence we solve the equation:

$3+5n=43\\\implies 5n=43-3\\5n=40\\n=8$

The summation notation is $\sum_{n=1}^8(3+5n)$

The error the student made is in the initial value.

It should be n=1 NOT n=3

b) The sum of the arithmetic series is calculated using:

$S_n=\frac{n}{2}(a+l)$

We substitute o get:

$S_8=\frac{8}{2}(5+43)$

$S_8=4(48)$

$S_8=192$

c) The explicit formula we already calculated in a), which is $a_n=3+5n$

The recursive formula is given as:

$a_n=a_{n+1}+d$

We substitute d=5 to get:

$a_n=a_{n+1}+5$

6 0

3 years ago

What is 1.97 to the nearest tenth ?

Tresset [83]

1.97 to the nearest tenth is 2 because in 1.97 the tenth is 9 and the number next to 9 is 7, since 7 is larger than 5, 9 has to be 10 but since 10 is a 2 digit number we have to add the 1 to the ones place which is 1 to make it into 2.

3 0

3 years ago