2 years ago

What are the first four terms in the sequence Tn=4n+9?

1 answer:

6 0

Answer: If the initial term of an arithmetic sequence is a 1 and the common difference of successive members is d, then the nth term of the sequence is given by: a n = a 1 + (n - 1)d The sum of the first n terms S n of an arithmetic sequence is calculated by the following formula: S n = n (a 1 + a n)/2 = n [2a 1 + (n - 1)d]/2

You might be interested in

What is 12 5 as a mixed number in simplest form?<br> 25

san4es73 [151]

Answer:

5−4+4=16+4

Step-by-step explanation:

8 0

2 years ago

Can someone help me please please please

marissa [1.9K]

Use the Pythagorean theorem $a^{2} + b^{2} = c^{2}$ to find the missing side length of a right triangle

In this case, after you plug in the given numbers your equation is $12^{2} + y^{2} = 20^{2}$

Then, Just solve that equation for y.

$144 + y^{2} = 400$

$x^{2} = 256$

$\sqrt{} y^{2} = \sqrt{256}$

y = 16

So the answer is B, 16 cm.

I hope this helps, please feel free to ask questions if you're still confused :)

7 0

3 years ago

Write an equation in slope intercept form of the line with a slope of -3/4 and y intercept of -5

raketka [301]

Given,
slope(m)=-3/4
y intercept (c)=-5
Then,
equation in slope intercept form is
y=mx+c
or, y=(-3/4)×x+(-5)
or, y=-3/4×x-5

5 0

3 years ago

7. A magnifying glass shows you an image of an object that is 7 times the object's actual size. An ant is 0.2 cm in length. What

Bess [88]

#1) (b)
#2) (d)
#3) (d)

My explanations are the same as your previous questions.

4 0

2 years ago

Draw a number line to represent the inequality.<br>82 x

natima [27]

We can’t draw on this.....we can only type. But if I where to it would be

/
/
/———/

7 0

3 years ago