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2 years ago

What do the double brackets with an x in the middle mean?

Mathematics

1 answer:

borishaifa [10]2 years ago

8 0

That is an absolute value. (the accual magnitude of a numerical number) it look like a v when graphed.

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A construction worker is sent to the store to buy more than 30 lb of roofing nails. The nails are sold in 5 lb boxes and 10 lb b

trapecia [35]

Answer:

The answer is A: 5x + 10y > 30. That is, the combination of boxes must be greater than 30 since the requirement is to have more than 30 lb of nails.

Step-by-step explanation:

The worker can buy a combination of boxes, as long as the total is greater than 30 lb. Multiply 5 lb by x and add that to 10 lb times y to get the total, which must exceed 30 lb.

8 0

2 years ago

I’ll mark youyou brainlist I’ll mark youyou brainlist

ale4655 [162]

8r + 206 + 7r +79 = 360
15r + 285 = 360
15r = 75
r = 5

7(5) + 79
35 + 79

angle YMB is 114°

3 0

2 years ago

Read 2 more answers

(3x+2)∧2=9 how do i solve this in the square root property

Irina18 [472]

$(3x+2)^2=9 \\\\9x^2+12x+4-9=0\\\\9x^2+12x-5=0\\\\a=9,\ \ b=12, \ \ c=-5$

$x_{1}=\frac{-b-\sqrt{b^2-4ac}}{2a}=\frac{-12-\sqrt{12^2-4 \cdot9 \cdot (-5)}}{2 \cdot 9}=\frac{-12-\sqrt{144+180}}{18}=\\\\=\frac{-12-\sqrt{324}}{18}=\frac{-12-18}{18}=\frac{-30}{18}=-\frac{5}{3}\\\\x_{2}=\frac{-b+\sqrt{b^2-4ac}}{2a}=\frac{-12+\sqrt{12^2-4 \cdot9 \cdot (-5)}}{2 \cdot 9}=\frac{-12+18}{18}=\frac{6}{18}=\frac{1}{3} \\\\Answer: \ x=-\frac{5}{3}\ \ and \ \ x=\frac{1}{3}$

6 0

3 years ago

In one week the owner of Carly's Coffeehouse found that the number of orders for bagels was 2/3 the number of orders for chocola

Novosadov [1.4K]

Answer:

210

Step-by-step explanation:

We can write the ratio as ...

bagels : scones = 2 : 3

Then bagels are 2/(2+3) = 2/5 of the total.

# bagels = (2/5)(525)

# bagels = 210

3 0

3 years ago

Need help with this question ASAP!<br> 20 points!

Delvig [45]

Answer:

6√3

Step-by-step explanation:

Use the sin formula, which is sin = opp / hyp

sin 60 = x / 12

x = 12 sin 60

x = 6√3

4 0

2 years ago