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trasher [3.6K]
3 years ago
5

What is the slope of a line perpendicular to the line passing through (1, -3) and (-4, 7)?

Mathematics
1 answer:
andrezito [222]3 years ago
7 0

Answer:

-2

Step-by-step explanation:

m=\frac{y2-y1}{x2-x1}

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Y = -17.5x + 2.7x + 14.1 - 11.9x
slava [35]

Answer:

y=-26.7x+14.1

hope this helps

have a good day :)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A series contains 18 numbers and has a sum of 4,185. The last number of the series is 275. What is the first number?
N76 [4]
If the series is made up of numbers in an arithmetic progression, you have

\displaystyle\sum_{n=1}^{18}a_n=\sum_{n=1}^{18}(a_1+(n-1)d)=18a_1+153d=4185

where a_1 is the first term and d is the common difference between terms.

Since the last term in the series is a_{18}=275, you have

a_{18}=a_1+(18-1)d\implies a_1+17d=275

Solve the system

\begin{cases}18a_1+153d=4185\\a_1+17d=275\end{cases}

and you'll find that the first term is a_1=190 (with d=5).
5 0
3 years ago
What should we multiply the top equation by in order for both equations to have like coefficients?
ASHA 777 [7]

Answer:

Multiply by 2

Step-by-step explanation:

If we multiply 2x-6y=26 by 2, we get 4x-12y=52 and the x's cancel out, making it easier to solve for y, using the elimination process.

Hope this makes sense!

5 0
3 years ago
WILL GIVE BRAINLIEST
Elenna [48]

Answer:

C is correct

Step-by-step explanation:

do you know why? haha

5 0
2 years ago
0.611 convert Decimal to percentage ​
diamong [38]

Answer:

0.611 = 61.1%

Step-by-step explanation:

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% = p/100 = p ÷ 100.

Note:

100/100 = 100 ÷ 100 = 100% = 1

Multiply a number by the fraction 100/100,

... and its value doesn't change.

Calculate the percent value:

0.611 =

0.611 × 100/100 =

(0.611 × 100)/100 =

61.1/100 =

61.1%;

In other words:

1) Multiply that number by 100.

2) Add the percent sign % to it.

7 0
2 years ago
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