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kipiarov [429]
3 years ago
13

4(t²-5t) + 3u³ when t=4 and u=5? ASAP

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
7 0

Answer:   359

Step-by-step explanation:

4(t²-5t) + 3u³   plug in the t and u

= 4[4²-5(4)] + 3(5)³

= 359

NNADVOKAT [17]3 years ago
5 0
The answer to this equation will be 359
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I=\frac{900*2.2*1.5}{100}
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4 years ago
A flower vendor sells roses for 50 cents each. how much does she pay per flower if she makes $6.00 on every $20 worth sold
kkurt [141]

We are given

selling price of one flower is $0.50

so, SP=0.50

Let's assume

she sold 'n' flowers to get $20

so, total amount she get after selling 'n' flowers is

=0.50*n

=0.50n

This is supposed to be $20

so, we can set it equal to 20

20=0.50n

now, we can solve for n

we get

n=40

we are given

she makes $6.00 on every $20 worth sold

so, we can find cost of 40 flowers is 20-6

total cost is 14

or cost of 40 flowers is $14

now, we can find cost of one flower

CP=\frac{14}{40}

CP=0.35

so, cost of each flower is 35 cents...............Answer

8 0
3 years ago
A population of ants triples every week. If the population starts at 7, how many ants will there be after 7 weeks?
Harrizon [31]

Answer:

147 ants

Step-by-step explanation:

7 times 3=21 21 times 7= 147

6 0
3 years ago
Read 2 more answers
Apply the distributive property to create an equivalent expression.<br> 1/5 (15+10k) =
ziro4ka [17]

Answer:

1/5(15+10k)

=1/5.15+1/5.10k

=3+2k

5 0
3 years ago
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A discuss moves from P1 (4,8) to P2 (15,17). What is the lincar displacement in the horizontal and vertical directions? What is
Yakvenalex [24]

Answer:

The horizontal displacement is 11 units, the vertical displacement is 9 units, and the projection angle is 39.3 degrees.

Step-by-step explanation:

We can start using the definition of displacement in one dimension between any 2 points which is the difference between them, so we have

\Delta s = s_2-s_1

And apply it to get the horizontal and vertical displacements.

Once we have found them, we can use trigonometric functions to find the projection angle with respect the horizontal.

Linear displacements.

Using the definition of displacement, we can write the horizontal displacement as

\Delta x = x_2-x_1

So we can use the given points P1:(x_1,y_2)  \text{  and  } P_2: (x_2,y_2) on the displacement formula

\Delta x = 15-4\\\Delta x = 11

In the same manner we can look at the y components of those points to find the vertical displacement

\Delta y = 17-8\\\Delta y =9

Thus the horizontal displacement is 11 units and the vertical displacement is 9 units.

Projection angle.

The projection angle with respect the horizontal is the angle that is made between the line that connects the points P1 and P2 and the horizontal, so we can use the linear displacements previously found to write

\tan(\theta) = \cfrac{\Delta y}{\Delta x}

Solving for the angle we get

\theta = \tan^{-1}\left(\cfrac{\Delta y}{\Delta x}\right)

Replacing values

\theta = \tan^{-1}\left(\cfrac{9}{11}\right)

Which give us

\theta = 39.3^\circ

So the projection angle is 39.3 degrees.

7 0
3 years ago
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