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4 years ago

true or false: we want the leading coeffient of a polynomial to be a positive number whenever possible

Mathematics

2 answers:

EastWind [94]4 years ago

4 0

That is false... coefficients in polynomials can lead in either positive or negative

levacccp [35]4 years ago

4 0

The leading coefficient should be positive whenever possible, true.

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Myra won the hurdles event for the seventh graders. She completed the race in 22.8 seconds and knocked down 1 hurdle. Byron won

Nadya [2.5K]

Answer:

Myra: 24.8s (winner)

Byron: 26.3s

Step-by-step explanation:

Myra knocked down 1, so therefore there are 2 points added onto her time and it is now 24.8s.

Byron knocked down 3, so there are 6 points added on for 2 seconds per each hurdle. His time is now 26.3

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3 years ago

Use place value to find the product 5 x 70 = 5 x. Tens

Mekhanik [1.2K]

Well x will need to equal 70 because if u do 70 x 5 it will be 350 so u will need to divide that by 5x and u will get x=70

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3 years ago

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Arian is making bracelets. For each bracelet, it takes 1/10 hour to pick out materials and 1/4 hour to braid it together. How ma

natta225 [31]

Answer:

14 Bracelets

Step-by-step explanation:

1/10 is 6 minutes

1/4 is 15 minutes

6+15=21 minutes

60 minutes x5 is 300 minutes

300/21 = 14.3 but you cannot leave one in the middle so the answer is 14

8 0

3 years ago

7x+5(-6)=-9 solve for x

ElenaW [278]

Answer:

x=3

Step-by-step explanation:

6 0

3 years ago

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What is the value of x and y

Ganezh [65]

Hello !

We solve this system:

$\begin{cases} 2y + 2 &=3y - 9 \: \: \: \: (1)\\ 3x + 6 &=y + 4 \end{cases}$

$(1) : 2y + 2 = 3y - 9 \\ - y + 2 = - 9 \\ - y = - 11\\ y = 11$

We replace y by 11 in the second equation:

$3x + 6 = 11 + 4 \\ 3x + 6 = 15 \\ 3x = 9 \\ x = \frac{9}{3} = 3$

_____________

$x = 3$

$y = 11$

Have a nice day ;)

6 0

2 years ago

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