4 years ago

If you get this right I will mark you as a brainliest

Mathematics

1 answer:

lara [203]4 years ago

4 0

Is it D. 58? or B.91?

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Identify the series 2 + 5 + 8 + 11 + 14 + . . . as arithmetic, geometric or neither.

rusak2 [61]

2, 5, 8, 11, 14 is an arithmetic sequence

$a_1=2;\ d=3;\ a_n=2+(n-1)\cdot3=2+3n-3=3n-1$

4 0

3 years ago

Read 2 more answers

Provide a counterexample:

Jobisdone [24]

Answer:

$a=2 \quad \text{and} \quad b=-2$

Step-by-step explanation:

Take $a=2 \quad \text{and} \quad b=-2$ , note that

$2=(-1)\cdot(-2)$

hence b divides a. On the other hand, we have that

$-2=(-1)\cdot2$

which tells us that a divides b. Moreover, $a=2 \neq -2=b$ .

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3 years ago

How much grater is 5 miles than 8,000 yards<br><br> How much gtater is 5 miles than 8,000 yards

Katarina [22]

800yards
Plz give brainlyist

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3 years ago

A pebble is dropped from a bridge into a river. Its height, h meters, above the river t seconds after it is released is modelled

snow_tiger [21]

I’m not sure but I think the answer is 7

7 0

3 years ago

Use left-endpoint approximation to estimate the area under the curve of f(x)=x^3 on [1,3]. Use n = 4. Using the same function us

natulia [17]

Split up the interval [1, 3] into 4 intervals of equal length,

$\Delta x = \dfrac{3 - 1}4 = \dfrac12$

The left endpoint of the $i$ -th interval is

$\ell_i = 1 + \dfrac i2$

The area under the curve is then approximately

$\displaystyle \int_1^3 f(x) \, dx \approx \sum_{i=1}^4 f(\ell_i)\Delta x \\\\ ~~~~~~~~ = \frac12 \sum_{i=1}^4 \left(1 + \frac i2\right)^3 \\\\ ~~~~~~~~ = \frac12 \sum_{i=1}^4 \left(1 + \frac{3i}2 + \frac{3i^2}4 + \frac{i^3}8\right) = \boxed{27}$

6 0

1 year ago