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2 years ago

Evaluate -3x^3 - 4x for x=-1.

Mathematics

2 answers:

Ivenika [448]2 years ago

6 0

Answer:

-x.(3x^2+4)

Step-by-step explanation:

Brain-list?

Wewaii [24]2 years ago

4 0

Answer:

-3(-1)^3-4(-1)= 27+4=31

Step-by-step explanation:-3 and -1 when you multiply both minus will change into plus. same for -4 and -1 when you multiply will change the signs. so you will get 27+4=31

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Solve the equation x/2=x/3+1/2

Mice21 [21]

Answer: x=3

Step-by-step explanation:

Move all x terms to the same side- x/2-x/3-1/2

Multiply to get common denominator- 3x/6-2x/6=1/2

Subtract 3x/6 and 2x/6 - x/6=1/2

Simplify - x=3

7 0

3 years ago

Read 2 more answers

Before she rides her bike, Saima warms up for 12 minutes. On Tuesday, Saima rode her bike for 52 miles. If it takes Saima 6 minu

kodGreya [7K]

Answer:

324 minutes or 5 hours 24 minutes

Step-by-step explanation:

On Tuesday, Saima rode her bike for 52 miles. If it takes Saima 6 minutes to ride each mile, then it takes her

$52\cdot 6=312$

minutes to ride all 52 miles.

Before she rides her bike, Saima warms up for 12 minutes.

Therefore, it takes Saima

$12+312=324$

minutes to warm up and ride her bike on Tuesday.

7 0

3 years ago

What is the equation of the line

kupik [55]

Answer:

y=-x+3.

Step-by-step explanation:

The graph goes down one and right one before making another point. This means that the slope is -1/1. Simplify and you get -1. So far we have y=-1x. -1x is the same as -1. Now we have y=-x. The graph intersects the y-axis at the point (0,3). This makes our y-intercept 3. Our final equation is y=-x+3.

8 0

2 years ago

Copy the problem, mark the givens in the diagram. Given: CS ≅ HR, ∠CHS ≅ ∠HCR, ∠CSH ≅ ∠HRC, Prove: CR ≅ HS

Veseljchak [2.6K]

Explanation:

1. CS ≅ HR, ∠CHS ≅ ∠HCR, ∠CSH ≅ ∠HRC — given

2. ∆CRH ~ ∆HSC — AA similarity theorem

3. ∠SCH ≅ ∠RHC — corresponding angles of similar triangles are congruent

4. CH ≅ HC — reflexive property of congruence

5. ∆CRH ≅ ∆HSC — SAS congruence theorem

6. CR ≅ HS — CPCTC

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3 years ago

Meagan has 1200 sugar cubes. What is the largest sugar cube she could build with the sugar cubes.

IgorLugansk [536]

Can you explain this question more please

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2 years ago