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3 years ago

13

The science fair judges will be teachers and volunteers. Each judge will view 5 projects. There are 133 science teachers. What i

s the fewest number of volunteers needed to have enough judges

1 answer:

Ede4ka [16]3 years ago

3 0

The answer is eighty because you have to divide five into 133

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If m∠A =91° and m∠B = 40°, find m∠1.

marusya05 [52]

Answer:

m∠1 is calculated as 49°.

Step-by-step explanation:

Consider the angles are the interior angles of a triangle.

m∠A =91°

m∠B = 40°

m∠1 = ?

We know that the sum of interior angles of a triangle is 180°. So,

m∠A + m∠B + m∠1 = 180°

or, m∠1 = 180°- m∠A - m∠B

or, m∠1 = 180°- 91° - 40°

or, m∠1 = 49°

Hence, m∠1 = 49°.

7 0

3 years ago

Choose all the functions that give the sequence:

TEA [102]

Hence, the functions that produce given sequence are:

f(n) = 2n + 1

f(n) = 2(n − 1) + 3

Further explanation:

We will put n=1,2,3,4,5 to find which functions give the given sequence

<u>f(n) = 2n − 1</u>

Putting values of n

$f(1)=2(1)-1=2-1=1\\f(2)=2(2)-1=4-1=3\\f(3)=2(3)-1=6-1=5$

This function doesn't generate the given sequence

<u>f(n) = 2n + 1</u>

Putting values of n

$f(1)=2(1)+1=2+1=3\\f(2)=2(2)+1=4+1=5\\f(3)=2(3)+1=6+1=7\\f(4)=2(4)+1=8+1=9\\f(5)=2(5)+1=10+1=11$

This function generates the given sequence.

<u>f(n) = 2(n − 1) − 3</u>

Putting values of n

$f(1) = 2(1 -1) -3=2(0)-3=0-3=-3\\f(2) = 2(2 -1) -3=2(1)-3=2-3=-1\\f(3) = 2(3-1) -3=2(2)-3=4-3=1$

This function doesn't generate the given sequence

<u>f(n) = 2(n − 1) + 3</u>

Putting values of n

$f(1) = 2(1 - 1) + 3=2(0)+3=0+3=3\\f(2) = 2(2 - 1) + 3=2(1)+3=2+3=5\\f(3) = 2(3 - 1) + 3=2(2)+3=4+3=7\\f(4) = 2(4 - 1) + 3=2(3)+3=6+3=9$

Hence, the functions that produce given sequence are:

f(n) = 2n + 1

f(n) = 2(n − 1) + 3

Keywords: Functions, Sequence

Learn more about functions at:

#LearnwithBrainly

8 0

3 years ago

Area of pallalelagram base 10cm , height 7cm

Neko [114]

A=base times height
A=10 times 7
A=70 cm²

5 0

3 years ago

Jim wants to buy strawberries and raspberries for the company party. Strawberries cost $1.80 per pound and raspberries cost $1.9

Crazy boy [7]

Answer: The answer is A.

Step-by-step explanation: You cant go over the $15 limit and in answer A, the sign shows that 1.80x + 1.95y is less than or equal to 15.

5 0

3 years ago

Read 2 more answers

There are about fourty-one thousand Asian elephants and about four-hundred seventy thousand African elephants left in the world

ivolga24 [154]

41000+470000=511000 elephants

7 0

3 years ago