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3 years ago

What is this, how do i solve it, what the answer

Mathematics

1 answer:

umka2103 [35]3 years ago

8 0

Answer:

Step-by-step explanation:

This is a function where you have to plug in the value you are given for x. In this case, you are given 1 as your value (after the semicolon). So, you set up your equation like so: (1)^3 + 3(1)^2 -7(1) + 4

(1)^3=1

3(1)^2 = 3

-7(1) = -7

4= 4

so you have 1+3-7+4 which is 1

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What is the total finance charge for a $4,250 loan at 13.25% interest compounded monthly for 24 months? ( I hate asking for help

antoniya [11.8K]

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6 0

3 years ago

Read 2 more answers

Train a is traveling at 30 mph faster than train b. If train a travels 350 miles in the same amount of time that train b travels

GalinKa [24]

Answer:

20 mph

Step-by-step explanation:

Let speed of Train a = Va mph

Let speed of Train b = Vb mph

Va = Vb + 30

Let time taken for Train a = Ta

Let time taken for Train b = Tb

time taken = distance travelled/speed

Ta = 350/Va = 350/(Vb+30)

Tb = 140/Vb

But they both travel in the same amount of time.

So, Ta = Tb

$\frac{350}{v_{b} + 30}=\frac{140}{v_{b}}$

Cross multiply

$350v_{b} = 140(v_{b} + 30)\\\\350v_{b} = 140v_{b} + 4200\\\\350v_{b} -140v_{b} = 4200\\\\210v_{b} = 4200$

Divide both sides by 210

$\frac{210v_{b} }{210} \frac{4200}{210} \\\\v_{b} = 20 mph$

4 0

2 years ago

Solve.

horrorfan [7]

x/2 = -0.73

To solve for x multiply both sides by 2:

x = -1.46

6 0

1 year ago

Read 2 more answers

Pls help I need ASAP pls

eimsori [14]

Answer:

-1

Step-by-step explanation:

The line goes down 1 grid square for each grid square to the right. Each grid square represents 1 unit in both the x- and y-directions. That means the slope is ...

m = rise/run = -1/1 = -1

The slope of the line is -1.

6 0

2 years ago

Please Help!!! :C

astraxan [27]

Answer:

10 ft

Step-by-step explanation:

Using the distance formula.

3 0

2 years ago