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aleksandr82 [10.1K]
3 years ago
9

Evaluate: sigma 20 and 1 = (3n+2)HEEELLLPPP MEEEEE

Mathematics
1 answer:
nadezda [96]3 years ago
5 0

Answer:

Step-by-step explanation:

\displaystyle \sum_{n=1}^{20} (3n+2)=\dfrac{(62+5)*20}{2} =10*67=670\\

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Hich correctly describes how the graph of the inequality 4x − 2y > 20 is shaded?
joja [24]

Answer:

First we need to express y in this inequality:

-2y > -4x + 20

-y > -2x + 10

y < 2x - 10

The line isn't solid because the "less" sign doesn't include equal in it.

Because the sign is "less than" the shaded part is Below the line.

Merging these 2 conclusion we get the answer:

below the dashed line.

Step-by-step explanation:

6 0
3 years ago
What is the inverse of f(x)=2x-2
evablogger [386]

Answer:

f^-1(x)=x/2+1

Step-by-step explanation:

6 0
4 years ago
Which statement is modeled by the expression?
Agata [3.3K]

Answer:

the right answer is

"A store had 500 apples to be placed in bags with an equal number of apples in each bag. If n is the number of bags to be used, then 500n is the number of apples in each bag"

4 0
4 years ago
Read 2 more answers
Central= 127 Radius= 7. What is the length of the indicated arc (x)
tia_tia [17]

Given:

\begin{gathered} \theta\text{ = 127} \\ r\text{ = 7 mm} \end{gathered}

Required:

Length of an arc x.

Explanation:

Length of an arc is given as,

Length\text{ of an arc =}\frac{\theta}{360}\times2\pi\text{r}

Length of an arc is calculated as,

\begin{gathered} Length\text{ of an arc = }\frac{127}{360}\times2\times3.14\times7 \\ Length\text{ of an arc = 0.3528 }\times2\times3.14\times7 \\ Length\text{ of an arc = 15.5091 mm} \\  \end{gathered}

Answer:

Thus the value of the length of an arc is 15.5091 mm

5 0
2 years ago
6 multiplied 5 =3 multiple
Vikki [24]

that is false that doesent equal 3 multiple


4 0
3 years ago
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