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3 years ago

PLZ HELP ITS 40 points

Mathematics

2 answers:

IRINA_888 [86]3 years ago

8 0

Answer:

theyre not because it becomes 32 +x and 37+3x

communitive

distributive

communitive

11x+12

6p+35

2(b+8)+2(3b)

8b+16

perimeter is the length of all sides so it would be b+8 and 3b two times since each side is equal

Step-by-step explanation:

GIVE ME BRAINLIEST PLS

TEA [102]3 years ago

3 0

Answer:

Step-by-step explanation: nunmber 12 is not equivalent bc the frist one has no prinises but number two has prinses.

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weqwewe [10]

Answer:

Step-by-step explanation:

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2 years ago

108 identical books have a mass of 30 kg. Find

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Answer:

(i) 540kg

(ii) 5.56 (rounded off to 3 significant figures)

Step-by-step explanation:

$108 \div 30 = 3.6kg$

$(i)3.6 \times 150 = 540kg$

$(ii)3.6 \times x = 20$

$3.6x = 20$

$x = \frac{20}{3.6}$

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3 years ago

Determine if (-2,6) and (4,12) are solutions to the system of equations:

kykrilka [37]

Answer:

Both $(-2,6)$ and $(4,12)$ are solutions to the system.

Step-by-step explanation:

In order to determine whether the two given points represent solutions to our system of equations, we must "plug" thos points into both equations and check that the equality remains valid.

Step 1: Plug $(-2,6)$ into $y=x+8$

$(6) = (-2)+8 = 6$

The solution verifies the equation.

Step 2: Plug $(-2,6)$ into $2y=x^2 + 8$

$2(6) = (-2)^2+8=4+8=12$

The solution verifies both equations. Therefore, $(-2,6)$ is a solution to this system.

Now we must check if the second point is also valid.

Step 3: Plug $(4,12)$ into $y=x+8$

$(12) = (4)+8 = 12$

Step 4: Plug $(4,12)$ into $2y=x^2 + 8$

$2(12) = (4)^2+8=16+8=24$

The solution verifies both equations. Therefore, $(4,12)$ is another solution to this system.

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3 years ago

What is the graph of the solution to the following compound inequality?

attashe74 [19]

Answer:

Step-by-step explanation:

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2 years ago

Nick and Adam workout together. Nick weighs 160 pounds and is gaining 3 pounds per week. Adam weighs 195 pounds and is losing ab

hoa [83]

Answer:

7 wks, 181 lbs

Step-by-step explanation:

160+3t=195-2t

160+5t=195

5t=35

t=7 weeks

160+3(7)=195-2(7)=181 pounds

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3 years ago