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Archy [21]
3 years ago
5

If u can help me and show work plzzz!!!

Mathematics
1 answer:
MakcuM [25]3 years ago
7 0

Answer:

A; C

Step-by-step explanation:

x = (1/2)(125 - 27) -->

x = (1/2)(98) -->

x = 49 (A)

_________

x = RS -->

(x+2)(2) = (3+5)(3) -->

2x + 4 = 9 + 15 -->

2x = 9 + 15 - 4 -->

2x = 20 -->

x = 10 (C)

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An equation with an exponent is called an exponential equation. True False
lyudmila [28]

Answer:

true

Step-by-step explanation:

7 0
3 years ago
A rectangular auditorium seats 1564 people. the number of seats in each row exceeds the number of rows by 1212. find the number
yanalaym [24]
<span>We can safely assume that 1212 is a misprint and the number of seats in a row exceeds the number of rows by 12. Let r = # of rows and s = # of seats in a row. Then, the total # of seats is T = r x s = r x ( r + 12), since s is 12 more than the # of rows. Then r x (r + 12) = 1564 or r**2 + 12*r - 1564 = 0, which is a quadratic equation. The general solution of a quadratic equation is: x = (-b +or- square-root( b**2 - 4ac))/2a In our case, a = 1, b = +12 and c = -1564, so x = (-12 +or- square-root( 12*12 - 4*1*(-1564) ) ) / 2*1 = (-12 +or- square-root( 144 + 6256 ) ) / 2 = (-12 +or- square-root( 6400 ) ) / 2 = (-12 +or- 80) / 2 = 34 or - 46 We ignore -46 since negative rows are not possible, and have: rows = 34 and seats per row = 34 + 12 = 46 as a check 34 x 46 = 1564 = total seats</span>
4 0
3 years ago
OPEN ENDED QUESTION
posledela

Answer: I hope this helps :)

Substitution:  45+15(6-1)

Simplify:  120

Step-by-step explanation:

Calculate within parenthases (6-1) =5    =45+15(5)

Multiply left to right 15(5)=75      =45+75

Add leftg to right 45+75=120

Answer = 120

4 0
3 years ago
What is the gcf of 42 and 56<br><br><br> What is the gcf of 42 and 56
Sholpan [36]

[ Answer ]

14

[ Explanation ]

The GCF is the greatest number that goes into two numbers. 14 is the greatest number that goes into both 42 and 56 evenly.

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6 0
3 years ago
Read 2 more answers
Y = 6x - 4; x = 8 find the value of y for the given value of x
miskamm [114]
X=8
y=6x-4
y=6(8)-4
y=48-4
y=44
5 0
3 years ago
Read 2 more answers
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