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Brrunno [24]
4 years ago
6

I need help to answer this

Mathematics
1 answer:
Basile [38]4 years ago
3 0
3x^-2 can be written

3/x^2 because x^-2 is = 1/x^2
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What is the greatest common factor of 34, and 85​
lisabon 2012 [21]

Answer:

GCF = 17

Step-by-step explanation:

For the values 34, 85

Solution by Factorization:

The factors of 34 are: 1, 2, 17, 34

The factors of 85 are: 1, 5, 17, 85

Then the greatest common factor is 17.

7 0
3 years ago
What is the 25th term of this arithmetic sequence? 3, 9, 15, 21, 27, …
irga5000 [103]
An = a1 + (n - 1)(d)
a1 = the first term in the sequence
d = common difference
n = term
a25 = 3 + (25 - 1)(6)
a25 = 3 + (24)(6)
a25 = 3 + 144
a25 = 147
8 0
4 years ago
Read 2 more answers
Vector d is shown on a centimetre grid. Image attached.
nexus9112 [7]

Answer:

see explanation

Step-by-step explanation:

A column vector has the form \left[\begin{array}{ccc}x\\y\\\end{array}\right]

Following the direction of the arrow , the x- displacement = - 3 and y- displacement = 2 , then column vector is

\left[\begin{array}{ccc}-3\\2\\\end{array}\right]

h + k

= \left[\begin{array}{ccc}4\\-3\\\end{array}\right] + \left[\begin{array}{ccc}-2\\-1\\\end{array}\right] ← add corresponding elements from each vector

= \left[\begin{array}{ccc}4-2\\-3-1\\\end{array}\right]

= \left[\begin{array}{ccc}2\\-4\\\end{array}\right]

3 0
3 years ago
Mr. Richard's science class is conducting a variety of experiments with projectiles and falling objects. Two groups of students
12345 [234]
<span>In general, the height of a projectile is given by

</span>h= -\frac 1 2 g t^2 + v t + h_0
<span>
where </span>h is the height at time t of a projectile shot upward at velocity v from initial height h_0<span>.

The acceleration of gravity </span>g= 9.8 \textrm {m/s}^2 \textrm{ or } g=32\textrm{ feet/s}^2.<span>  We give it a negative sign in the equation because it pulls down.

Let's apply it to each group.

Group A launches a tennis ball straight up with an initial velocity of 19 meters per second.

We have MKS units, positive (upward) velocity and an initial height of 0.

</span>h= -\frac 1 2(9.8) t^2 + (19) t + 0 = -4.9t^2 + 19t
<span>
Group B launches a tennis ball straight up with an initial velocity of 50 feet per second.    Not metric, velocity +50, initial height zero.

</span>h= -16t^2 + 50t
<span>
Group C drops a tennis ball from a height of 19 meters.

MKS, initial height 19, initial velocity zero.

</span>h= -\frac 1 2 g t^2 + v t + h_0 = -4.9 t^2 + 19
<span>
Group D drops a tennis ball from a height of 50 feet. 

</span>h= -16 t^2 + 50
<span>


</span>
6 0
4 years ago
Read 2 more answers
Use the scale factor to compare the perimeter and area of the original figure of the enlarged figure. Complete the statements ab
Reika [66]

Answer:

Part 1) The scale factor is 2

Part 2) The perimeter of the enlarged rectangle is 19 units

Part 3) The area of the enlarged rectangle is 19.5 square units (the area of the enlarged rectangle is 4 times the area of the original rectangle)

Step-by-step explanation:

we know that

A dilation is a non-rigid transformation that produce similar figures

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

The ratio of its perimeter is equal to the scale factor and the ratio of its areas is equal to the scale factor squared

<em>step 1</em>

<em>Find the scale factor</em>

Let

z ---> the scale factor

z=\frac{3}{1.5}=2

step 2

Find the perimeter of the enlarged rectangle

Multiply the perimeter of the original rectangle by the scale factor

The perimeter of the original rectangle is

P=2(1.5+3.25)=9.5\ units

so

The perimeter of the enlarged rectangle is

9.5(2)=19\ units

step 3

Find the area of the enlarged rectangle

Multiply the area of the original rectangle by the scale factor squared

The area of the original rectangle is

A=(1.5)(3.25)=4.875\ units^2

so

The area of the enlarged rectangle is

4.875(2^2)=19.5\ units^2

The area of the enlarged rectangle is 4 times the area of the original rectangle

step 4

Find the value of b

Multiply the corresponding side of the original rectangle by the scale factor

b=3.25(2)=6.50\ units

Verify the perimeter of the enlarged rectangle

P=2(3+6.50)=19\ units ----> is ok

Verify the area of the enlarged rectangle

A=3(6.50)=19.5\ units^2 ---> is ok

8 0
4 years ago
Read 2 more answers
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