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3 years ago

Simplify the following:

Mathematics

2 answers:

GaryK [48]3 years ago

6 0

( 5n² )( 3n⁴ )

15n⁶

Option D is right answer

vovikov84 [41]3 years ago

6 0

Answer:

d. 15n^6

Step-by-step explanation:

i hope this helps :)

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I’m not sure what the answer is

lys-0071 [83]

Set up a pair of fractions:
$\frac{500}{1} = \frac{828}{x}$
500x = 828 (cross multiply)
x = 1.656 meters high should be the model (1.7 rounded)

8 0

3 years ago

the grade 8 has hired a disk jockey the disk jockey takes 85$ plus 2 for each student that attends. The disk jockey was paid 197

Paha777 [63]

Answer:

56 students

Step-by-step explanation:

The equation for your question is 85+2x=197. First you would have to subtract 85, on both sides, leaving you with 2x=112. Then, you'd have to divide by 2 on both sides to isolate the variable. From there, you're left with x=56.

5 0

3 years ago

In line the students, Jenna is number 8. The teacher says that a rule for a number pattern is add 4. The first student in line s

butalik [34]

First off u do not need to know that Jenna is number 8 u just need to know that the first student in line said 7 so Jenna should say 11. Sry if I gave u the wrong information, but I hope it helped

7 0

3 years ago

What kind of a triangle is a triangle with measurements of 28 mm x 53 mm 45 mm

-BARSIC- [3]

Answer:

scalene triangle

Step-by-step explanation:

we know that

A <u><em>scalene triangle</em></u> is a triangle in which all three sides have different lengths. Also the angles of a scalene triangle have different measures.

In this problem we have a triangle in which all three sides have different lengths

$28\ mm\neq 53\ mm\neq 45\ mm$

therefore

Is a scalene triangle

4 0

3 years ago

A ball is launched from a sling shot. Its height, h(x), can be represented by a quadratic function in terms of time, x, in secon

rusak2 [61]

Answer:

309 ft

Step-by-step explanation:

In order to solve this I have to assume that the sling shot is ground level. Since you did not provide an initial height, without making the assumption that it is 0, we cannot solve the problem at all.

The standard form of a quadratic function is

$f(x)=ax^2+bx+c$

c is the initial height for which we are going to sub in a 0. Given 2 points, we are going to plug in the y and the x, one point each into 2 quadratic functions, to find the model. The first coordinate is (1, 121):

$121=a(1)^2+b(1)+0$ and 121 = a + b

The second coordinate is (2, 224):

$224=a(2)^2+b(2)+0$ and 224 = 4a + 2b

Solve the first equation for a:

a = 121 - b

and sub it in for a in the second equation:

224 = 4(121 - b) + 2b and

224 = 484 - 4b + 2b and

-260 = -2b so b = 130.

Now we can sub that in for b and solve for a:

a = 121 - 130 so a = -9.

The equation then that models the motion is

$f(x)=-9x^2+130x$

Now that we know that, all we have to do now is to find f(3):

$f(3)=-9(3)^2+130(3)$ and

f(3) = 309 ft

5 0

3 years ago