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olga2289 [7]
2 years ago
13

Help me with this pls​

Mathematics
1 answer:
Anton [14]2 years ago
5 0

\tt 4:2\dfrac{2}{3}=x:4\\\\4:\dfrac{8}{3}=x:4\\\\x=16:\dfrac{8}{3}=6

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An arithmetic sequence begins as follows: a1=13 a2=19 Which of the following gives the definition of its nth term?
Otrada [13]

Answer:

the nth term of the sequence is a_n=6n+7

Step-by-step explanation:

Given : An arithmetic sequence begins as follows: a_1=13, a_2=19

To find : Which of the following gives the definition of its nth term?

Solution :

The nth term of the A.P is a_n=a+(n-1)d

The first term is a=a_1=13

The common difference is d=a_2-a_1

d=19-13=6

Substitute in the formula,

a_n=13+(n-1)6

a_n=13+6n-6

a_n=6n+7

Therefore, the nth term of the sequence is a_n=6n+7

5 0
3 years ago
Angle Q measures 30 degrees. If angle Q is rotates 15 degrees, what is the measurement of angle Q?
wariber [46]
Angle Q will have the same measurement as it did before, 30°.
Just because the angle is rotated shouldn't change its angle measure.
3 0
3 years ago
ok ok ok i didnt mean to do that other question but if u can answer this correctly ill paypal u a dollar
mash [69]
A dollar ????????????
4 0
3 years ago
Read 2 more answers
What is the volume of this model
saul85 [17]
39 dont forget the squared thigy
4 0
3 years ago
Please answer asap if u know the answer!!!! completing a square. thank you!!!!
Tema [17]

Answer:

D

Step-by-step explanation:

The equation of a parabola in vertex form is

f(x) = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

To obtain this form using the method of completing the square.

Given

f(x) = 3x² - 24x + 10

We require the coefficient of the x² term to be 1 , thus factor out 3

3(x² - 8x) + 10

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 8x

= 3(x² + 2(- 4)x + 16 - 16) + 10

= 3(x - 4)² + (3 × - 16) + 10

= 3(x - 4)² - 48 + 10

= 3(x - 4)² - 38, thus

f(x) = 3(x - 4)² - 38 ← in vertex form

3 0
3 years ago
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