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Lena [83]
3 years ago
9

I need help... I tried but uhm... I cant find the right answer....

Mathematics
2 answers:
yarga [219]3 years ago
7 0

Answer:

Step-by-step explanation:2.5x3=10+2+2=14

Marizza181 [45]3 years ago
6 0

Answer:

14

Step-by-step explanation:2.5x3=10+2+2=14

Would be nice  if you gave brainlest

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(70 points)
meriva
f(x) = -0.26x^2 + 1.2x + 5.7\\\\\\f'(x)=(-0.26x^2 + 1.2x + 5.7)'=(-0.26x^2)'+(1.2x)'+(5.7)'=\\\\=-0.26(x^2)' + 1.2(x)' + (5.7)'=-0.26\cdot(2x) + 1.2\cdot1+0=\\\\=\boxed{-0.52x+1.2}

Answer C)
8 0
3 years ago
Read 2 more answers
Marcus is making dinner for himself and 6 friends. He open 6 cans of soup. Each can is 14 ounces. If everyone gets the same amou
jek_recluse [69]

Answer:

each person will get 12 ounces of soup

Step-by-step explanation:

6 cans of 14 ounces- 6x14= 84

84 ounces divided among 7 friends- 84/7= 12

so each friend gets 12 ounces

6 0
3 years ago
20 POINTS!
Norma-Jean [14]

Answer:

C. x^{3} - 4x^{3} - 24x + 21

Step-by-step explanation:

(x - 7)(x^{2} + 3x - 3)

x(x^{2} + 3x - 3) + -7(x^{2} + 3x - 3)

(x^{3} + 3x^{2} - 3x) + (-7x^{2} + -21x + 21)

x^{3} - 4x^{3} - 24x + 21

5 0
1 year ago
The lines whose equations are 2x + 3y = 4 and y = mx + 6 will be perpendicular when
Natalka [10]

Answer:

These lines will be perpendicular when m =  ³⁄₂

Step-by-step explanation:

Two lines are perpendicular when the product of their gradients equal to -1. So:

m₁ * m₂ = -1

Let's get the first equation in gradient-intercept form (same as equation two).

2x + 3y = 4

3y = -2x + 4

y = -⅔x + ⁴⁄₃

We know the first gradient, and now we can find the gradient of the second line (which when multiplied will result in -1 as these lines are perpendicular). So:

-⅔ * m₂ = -1

m₂ =  ³⁄₂

5 0
3 years ago
Alex purchases a big screen TV, pays 7% state sales tax,
snow_tiger [21]

Answer:

$1489.10

Step-by-step explanation:

1668.93 x 0.07 - 65

Tax = 116.83

1668.93 - 116.83 - 63

Answer = $1489.10

7 0
2 years ago
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