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Sauron [17]
3 years ago
8

Please help. I’ll mark you as brainliest if correct!

Mathematics
1 answer:
OLEGan [10]3 years ago
5 0

Answer:

x +0y+0z = 400

-x +y+0z = 150

-8x +0y +z = 250

Step-by-step explanation:

The last column is the solution

The rest of the columns are the coefficients of the variables

x +0y+0z = 400

-x +y+0z = 150

-8x +0y +z = 250

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Which expression is equal to 5^4 x 5^8 ? <br><br> A: 5^12<br> B: 5^4<br> C: 5^2<br> D: 5^−4
galben [10]

Something to remember is how to multiply terms with same bases, but different exponents:

a^b \cdot a^c = a^{(b+c)}


Essentially, we add the exponents.


Using the information above, we can find our answer:

5^4 \cdot 5^8 = 5^{(4+8)} = \boxed{5^{12}}


Our answer is \boxed{5^{12}}, or A.

6 0
3 years ago
Read 2 more answers
The general equation for depreciation is given by y = A(1 – r)t, where y = current value, A = original cost, r = rate of depreci
irina1246 [14]
Analyzing the given values and the given equation, we have the following:
A = $25,000
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The equation has the form:
y = A (1-r)^t
Plugging in the given values into the equation,
y = $25,000 (1 - 0.11)^6
y = $25,000 (0.89)^6

Therefore, the answer is
A. y=25,000(.89)^6
3 0
4 years ago
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Kaley bought an oven from a rental center for $728.44. She makes 12 monthly payments of $74.91 with her credit card. The rental
Kruka [31]
Here is a sentence describing what Kaley paid for.

monthy payments + credit card fee per month + 4 late charges.

($74.91 x 12)       +    ($2.75 x 12)                    +    ($35 x 4)

$898.92 + $33 + $140 = $1071.92

Kaley paid a total of $1071.92 to rent the oven.


6 0
3 years ago
Alexis and Martin helped the school set chairs in rows for an assembly. They put the same number of chairs in each row. Using 92
Furkat [3]

4c + 5c = 92 - 2

9c = 90

c = 10

22 chairs were not used in the assembly.

4 0
3 years ago
Use the order of operations to evaluate the expression. 4 × ( 3 4 − 1 2 ) + 3 × 6 A. 19 B. 20 1 2 C. 24 D. 33
egoroff_w [7]

Answer:

106

Step-by-step explanation:

4 × ( 3 4 − 1 2 ) + 3 × 6

PEMDAS

Parentheses first

4 × ( 22 ) + 3 × 6

Multiply next

88 +18

Add

106

7 0
3 years ago
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