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3 years ago

Someone please help me

Mathematics

2 answers:

Natalka [10]3 years ago

4 0

4 (3n-2) is the answer.

Woops. Sorry I had no idea that it said expression (s) instead of expression, but that is one of the answers though.

Nimfa-mama [501]3 years ago

4 0

Answer:

second box fourth box and 5th box

Step-by-step explanation:

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I WILL MARK BRAINEST PLSS HELP DUE SOON

AveGali [126]

Answer:

I pretty sure it is b and d plz give brainlyiest

Step-by-step explanation:

7 0

3 years ago

Pls help me !!! Find the volume of the cylinder. Either enter an exact answer in terms of 7 or use 3.14 for T.

jeka57 [31]

Volume of cylinder = pi r^2 h
= 3.14 x 3^2 x 2
= 3.14 x 9 x 2
= 28.26 x 2
= 56.52 units^3

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3 years ago

HELP PLEASE ILL MARK BRAINLIEST

gavmur [86]

Answer:

B. $\frac{3+\sqrt{29} }{2}$

Step-by-step explanation:

$\frac{-(-3)\sqrt{(-3^2-4(1)(5)} }{(2)(1)}$

$=\frac{-(-3)+\sqrt{29} }{2}$

4 0

3 years ago

Read 2 more answers

The product of b and 2 is greater than or equal to 28

dimaraw [331]

Answer:

$b \geqslant 14$

Step-by-step explanation:

Product of b and 2 = 2b

According to the given description:

$2b \geqslant 28 \\ \\ b \geqslant \frac{28}{2} \\ \\ b \geqslant 14$

4 0

2 years ago

50 POINTS!!!!! HELP Soybean meal is 16% protein; cornmeal is 8% protein.How many pounds of each should be mixed together in orde

tia_tia [17]

The first thing we are going to do for this case is define variables.
We have then:
x: Amount of soybean meal
320 - x: quantity of cornmeal
We now write the equation that models the problem:
$0.16x + 0.08 (320-x) = 0.09 (320)
$
Rewriting we have:
$0.16x + 25.6 - 0.08x = 28.8
$
From here, we clear x:
$0.16x - 0.08x = 28.8 - 25.6

0.08x = 3.2

x = 3.2 / 0.08

x = 40$
Then, the amount of Soybean meal is:
$x = 40 lb
$
The amount of cornmeal is:
$320 - x = 320 - 40 = 280 lb
$
Answer:
cornmeal: 280 lb
Soybean: 40 lb.

4 0

3 years ago