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3 years ago

-3, 1, 5, 9, ...

Mathematics

1 answer:

il63 [147K]3 years ago

5 0

Answer:

Step-by-step explanation:

f(n) = -3 + (n - 1)·4

f(n) = -3 + 4n - 4

f(n) = 4n - 7

-3 derives from being the first number in the sequence

4 derives from being the positive difference between values in the sequence

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HELP ME, math<br> PLEASE PLEASE PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

s344n2d4d5 [400]

Step-by-step explanation:

the area of a rectangle is length×width.

area of the original rectangle (before its sides are. multiplied) :

Ao = length original × width original

length new = length original × 4

width new = width original × 4

the area of the new rectangle is then :

An = length new × width new =

= length original × 4 × width original × 4 =

= length original × width original × 4 × 4 =

= length original × width original × 16 =

= Ao × 16

so, the fourth answer option is correct. the area increases by a factor 16.

two objects of shapes are similar, if their angles are the same, and exchanged side length of one object correlates with the corresponding side length of the other b object with the same ratio.

we see the ratio of one corresponding pair of side lengths is 2/4 = 1/2. so, every side length of the small prism is half as long as the corresponding side length in the large prism.

the volume of such a prism is the multiplication of 3 side lengths : length, width, height.

each one has now a scaling factor of 1/2.

so, the volume decreases by the cube of the scaling factor: 1/2×1/2×1/2 = 1/2³ = 1/8

so,

Vsmall = Vlarge × 1/8 = 2720/8 = 340 cm³

therefore, again, the fourth answer option is correct.

7 0

2 years ago

О<br> 1<br> What is the value of x in the equation 3x-=-18?<br> О-56<br> —52<br> ООО<br> 52<br> 56

coldgirl [10]

Answer:-17/3

Step-by-step explanation:

3 0

3 years ago

if jk has endpoints j(-2,3) and k(6,5), and ln has endpoints l(0,7) and n(4,1), then jk and ln have the same midpoint.

tankabanditka [31]

Ok well, not technically yes, but jk's midpoint is (1,5) and ln is (5,3). So they're not the same. In this case in my opinion, it's no.

3 0

3 years ago

Read 2 more answers

How many whale sharks would a researcher need to measure so that 90% confidence level would have a margin of error of 0.25

Vika [28.1K]

About 1407 sharks would be needed to have a margin of error of 0.25

<h3>What is margin of error?</h3>

Margin of error is used to determine by what value there is deviation from the real value. Margin of error (E) is given by:

$E=Z_\frac{\alpha}{2} *\frac{standard\ deviation}{\sqrt{sample\ size} }$

The 90% confidence level have a z score of 1.645. Hence for E = 0.25, standard deviation = 5.7 feet, hence:

$0.25=1.645*\frac{5.7}{\sqrt{sample\ size}}\\ \\sample\ size=1407$

About 1407 sharks would be needed to have a margin of error of 0.25

Find out more on margin of error at: brainly.com/question/10218601

8 0

2 years ago

An angle is 40 more than its complement. What is the measure of that angle?

Colt1911 [192]

Since the first angle should be 40 degrees more...
$x + 40 = angle$
We Have in make 90 degrees with the rules, the complement angle must be 25
$25 + 40 = 65$
$25 + 65 = 90$

4 0

4 years ago