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3 years ago

Which number is not prime A.29 B.99 c.71 d.3

Mathematics

2 answers:

jolli1 [7]3 years ago

7 0

Answer:

sum like 99 becuz isz ur safest bet to get it right

Ivanshal [37]3 years ago

3 0

Hey there!

Prime numbers are basically only approximately 2 FACTORS... 1 & that particular number

3 is PRIME because the only factors it has is 1 & 3 (so we can eliminate this as your possible answer)

29 is PRIME because it has 1 & 29 as its factors (we can eliminate this as your possible answer)

71 is PRIME because it has 1 & 71 as its factors as well! (So we can eliminate as your possible answer)

This leads Option B as your answer

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

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HELPPPP PLEASEEEEEEE

Bezzdna [24]

30043——————3.0043 x 10^4
30.043—————— 3.0043 x10^1
0.0030043—————-3.0043 x 10^-3
0.30043—————-3.0043 x 10^-1
3.0043————-3.0043 x 10^0

Hope this helps please mark brainiest

8 0

3 years ago

. If α and β are the roots of

Lostsunrise [7]

Answer:

$18x^2+85x+18 = 0$

Step-by-step explanation:

Given Equation is

=> $2x^2+7x-9=0$

Comparing it with $ax^2+bx+c = 0$ , we get

=> a = 2, b = 7 and c = -9

So,

Sum of roots = α+β = $-\frac{b}{a}$

α+β = -7/2

Product of roots = αβ = c/a

αβ = -9/2

Now, Finding the equation whose roots are:

α/β ,β/α

Sum of Roots = $\frac{\alpha }{\beta } + \frac{\beta }{\alpha }$

Sum of Roots = $\frac{\alpha^2+\beta^2 }{\alpha \beta }$

Sum of Roots = $\frac{(\alpha+\beta )^2-2\alpha\beta }{\alpha\beta }$

Sum of roots = $(\frac{-7}{2} )^2-2(\frac{-9}{2} ) / \frac{-9}{2}$

Sum of roots = $\frac{49}{4} + 9 /\frac{-9}{2}$

Sum of Roots = $\frac{49+36}{4} / \frac{-9}{2}$

Sum of roots = $\frac{85}{4} * \frac{2}{-9}$

Sum of roots = S = $-\frac{85}{18}$

Product of Roots = $\frac{\alpha }{\beta } \frac{\beta }{\alpha }$

Product of Roots = P = 1

The Quadratic Equation is:

=> $x^2-Sx+P = 0$

=> $x^2 - (-\frac{85}{18} )x+1 = 0$

=> $x^2 + \frac{85}{18}x + 1 = 0$

=> $18x^2+85x+18 = 0$

This is the required quadratic equation.

5 0

3 years ago

Read 2 more answers

Help on number 2 please

Katarina [22]

Answer:

y=12.73 x=9

Step-by-step explanation:

3 0

3 years ago

610 divided by 20 without a decimal

grigory [225]

Answer:31 or 30.5 orrr 61/2

Step-by-step explanation:

quick mathz

4 0

3 years ago

Read 2 more answers

To determine whether they need to hire extra help for the holiday season, the managers of a railroad company want to estimate ho

nadezda [96]

Answer:

Step-by-step explanation:

Data provided in the question:

Standard error = 1.5 minutes ( ∵ number are repetitive 1.51.5 )

Standard deviation = 9 minutes ( ∵ number are repetitive 99 )

Now,

Standard error = ( Standard deviation ) ÷ √n

Here,

n is the sample size

Therefore,

on substituting the respective values, we get

1.5 = 9 ÷ √n

√n = 9 ÷ 1.5

√n = 6

n = 6² = 36

3 0

3 years ago