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3 years ago

Find the midpoint (-1,3) and (5,-4)

Mathematics

2 answers:

Dmitrij [34]3 years ago

4 0

Answer:

(2,-0.5)

Step-by-step explanation:

Anna11 [10]3 years ago

4 0

Answer: (2,-0.5)

Step-by-step explanation:

You need to find the difference between the x's and the y's, then divide by 2.

Step 1: Find the difference between the x's

5 + -1 = 4

Step 2: Find the difference between the y's

-4 + 3 = -1

Step 3: Divide both the results by 2

4/2 = 2

-1/2 = -0.5

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Answer the question below. Be sure to show your work

likoan [24]

ANSWER:

We have to find new side-lengths of PQR triangle.

Original sides are.

$\begin{gathered} PQ\text{ = 8cm} \\ QR=17\operatorname{cm} \\ RP=15\operatorname{cm} \end{gathered}$

After multiplying by 2.5 we get

$\begin{gathered} PQ^{\prime}=2.5\times PQ=(8\times2.5)cm=20\operatorname{cm} \\ QR^{\prime}=(17\times2.5)cm=42.5\operatorname{cm} \\ RP^{\prime}=(15\times2.5)cm=37.5\operatorname{cm} \end{gathered}$

These are the new sides of the P'Q'R' triangle.

5 0

1 year ago

Let $S = 2010 + 2011 + \cdots + 4018$. Compute the residue of $S$, modulo 2009.

Yakvenalex [24]

Notice that

2010 ≡ 1 mod 2009

2011 ≡ 2 mod 2009

2012 ≡ 3 mod 2009

...

4017 ≡ 2008 mod 2009

4018 ≡ 0 mod 2009

So really, <em>S</em> is just the sum of the first 2008 positive integers:

$S=\displaystyle\sum_{n=1}^{2008}n=\frac{2008\cdot2009}2$

where we invoke the formula

$\displaystyle\sum_{i=1}^ni=\frac{n(n+1)}2$

and so <em>S</em> ≡ 0 mod 2009.

8 0

3 years ago

Kate is building a rectangular wall.the wall will be 332 bricks wide and 39 bricks tall how many bricks does she need to build t

Klio2033 [76]

Answer:

12948 bricks

Step-by-step explanation:

332*39=12948

5 0

4 years ago

The last brainliest, Please show work

yarga [219]

Answer: The speed of the car is 45.3 miles per hour.

Step-by-Step Explanation: Let 'x' be the speed of the car.

60 × 2/3 = 120/3 = 40

30 × 1/5 = 151/5

151/5 /40 = x / 60

151 / 200 = x / 60

=> x = (151×60) / 200

=> x = 45.3

4 0

3 years ago

Read 2 more answers

A chef can finish a catering job in 4hr. His student can do the same job in 12hr. How long will it take them both to do the job

Arte-miy333 [17]

12 divided by 4 equal 3
Ans:3hrs

4 0

3 years ago