MATHEMATICS HIGH SCHOOL

Plzs help I give u BRAINLIST

Answers

Answer 1

Answer:

Answer:

$30,170.36

Step-by-step explanation:

I'm good at math, and I double checked with someone... I am perfectly sure that $30,170.36 is the answer.

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Find the -intercept and -intercept of the line.3x-7y=-21

x-intercept
y-intercept

Answers

x intercept (- 7,0)

y intercept (0,3)

Please help i cant figure this out

Answers

First work out the bracket: -1 2/3, make this into one fraction
a b/c = (ac+b)/c
ignore the negative for now, so 3+2= 5 so your fraction is -5/3
Then multiply: 3/5 x -5/3 = -15/15 so your answer is -1

-1 2/3 = - (1*3+2/3)
= - (3+2/3)
= -5/3

Now lets multiply
= 3/5 * -5/3
= 3*-5 / 5*15
= -15/15
= -1

Using the function in example one, what is the y value (output) when x=4?

Answers

Answer:

-7

Step-by-step explanation:

Using the formula given above, just put in 4 and replace x. It will give you an answer of -7

Write the sum using summation notation, assuming the suggested pattern continues. -10 - 2 + 6 + 14 + ... + 110

Answers

This is the sum of the arithmetic sequence:
10 - 2 + 6 + 14 + ... + 110
where: a 1 = - 10, d = 8
a n = 110
a n = a 1 + ( n - 1 ) * d
110 = - 10 + ( n - 1 ) * 8
110 = - 10 + 8 n - 8
110 + 10 + 8 = 8 n
128 = 8 n
n = 128 : 8
n = 16
∑ n = n/2 * ( a 1 + a n )
∑ 16 = 16/2 * ( -10 + 110 ) = 8 * 100 = 800
Answer:
The sum is 800.

The answer is summation of the quantity negative ten plus eight n from n equals zero to fifteen

Write the statement for the problem in mathematical language. Use x for the tens digit and y for the unit digits in the two digit numbers. Find the two-digit number which is 2 times the sum of its digits

Answers

Answer:

Step-by-step explanation:

A two-digit number (xy) will have the value 10x+y. The sum of its digits is x+y.

You want ...

10x +y = 2(x +y)

1 ≤ x ≤ 9

0 ≤ y ≤ 9

The equation can be simplified to ...

8x = y

The only single-digit values for x and y that satisfy the requirements are ...

x = 1, y = 8

The two-digit number of interest is 18.

_____

Check

Its sum of digits is 1+8 = 9. 2×9 = 18.

_____

Comment on the relationship in the problem

Many of us learned our multiplication tables for 9s by remembering that the sum of digits of 9n was 9, and that the leading digit of the product was n-1.

Answer:

the statement is x=y/8 the number is 18

Step-by-step explanation:

ur welcome.

PLEASE help me with this question! This is really urgent! No nonsense answers please.