2 years ago

Please Help!!! The 2 questions are attached below.

Mathematics

1 answer:

makkiz [27]2 years ago

7 0

Answer:

C. 80

Step-by-step explanation:

Hope This Helps! : )

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If you multiply two integers together and then add 4, the result is 40. Which of the following could NOT be the sum of the two n

marta [7]

Answer:

Step-by-step explanation:

xy + 4 = 40

xy = 40 - 4

xy = 36

What two numbers can b multiplied to give 36? Then add them.

9 + 4 = 13

18 + 2 = 20

6 + 6 = 12

12 + 3 = 15

The odd option is 18

6 0

3 years ago

Find the total surface area of the square pyramid in the figure.<br><br> thanks!!

Viefleur [7K]

Answer:

B: 144 yd²

Step-by-step explanation:

It's a square pyramid : Base area 8 x 8 = 64

4 side area:((8 x5) /2) x 4 = 80

Total area: 64 +80 = 144

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2 years ago

Find the 75th term of the arithmetic sequence -1, 15, 31, ...−1,15,31,...

Readme [11.4K]

Answer:

1183

Step-by-step explanation:

Common difference:

d = 31 - 15 = 16

nth term:

$a_n = a_1 + (n - 1)d$

Here, $a_1 = -1$

$a_{75} = -1 + (75 - 1)(16)$

$a_{75} = 1183$

3 0

2 years ago

Help me with my test

pychu [463]

Answer:

Step-by-step explanation:

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2 years ago

3 points lie on an xy plane, with each point representing where a particular person lives. Amy lives at point (2,3); Brian lives

geniusboy [140]

The equidistant point for all three, will be the "centroid" of their triangular locations
thus $\bf \textit{Centroid of a Triangle}
\begin{array}{llll}
Amy
\begin{array}{llll}
(2,3)\\
x_1,y_1
\end{array}\quad Brian
\begin{array}{llll}
(0,7)\\
x_2,y_2
\end{array}\quad Claire
\begin{array}{llll}
(-2,3)\\
x_3,y_3
\end{array}\\ \quad \\\\\\
\left(\cfrac{x_1+x_2+x_3}{3}\quad ,\cfrac{y_1+y_2+y_3}{3}\quad \right)
\end{array} 
$

6 0

3 years ago