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3 years ago

Which of the following would be in the solution set to the system of inequalities given below?

Mathematics

1 answer:

serg [7]3 years ago

8 0

Answer:

(-4,0)

Step-by-step explanation:

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Find the value of x. A.5 B. 40 C. 45 D. 20

Alinara [238K]

(B) x = 40

Step-by-step explanation:

4x + 20 = 180

4x = 160

x = 40

3 0

3 years ago

Read 2 more answers

3^-4 as a fraction, i need the exact value of this number as a fraction please and thank you :)

Musya8 [376]

Answer:

$\frac{1}{81}$

Step-by-step explanation:

Using the rule of exponents

$a^{-m}$ = $\frac{1}{a^{m} }$ , then

$3^{-4}$ = $\frac{1}{3^{4} }$ = $\frac{1}{81}$

8 0

2 years ago

Thomas is running for class president. e can have a campaign buttons made for a one-time fee of $23.60,plus $0.50 for each butto

mariarad [96]

Lets x = number of buttons

Equation:
0.50x + 23.60 = 257
0.50x = 233.4
x = 466.8

Maximum number of buttons = 466

Answer:
D) 466 buttons

3 0

3 years ago

Read 2 more answers

5-1+2x(4x4-12)x8 explain

Romashka [77]

First, do what's in the paranthesis:

(4*4-12)

Multiplication first:

16-12

Then subtract:

We get:

5-1+2*4*8

Multiply:

2*4

Multiply, again:

8*8

We get:

5-1+64

Subtract:

5-1

Add:

4+64

Answer: 68

5 0

3 years ago

Read 2 more answers

Keeping in mind the rules for significant figures, determine how many milliliters there are in 0.073 gallons. 1 gallon = 4 quart

andreev551 [17]

we are given

there are in 0.073 gallons

we can see that there are two non-zero places after decimals

so, there are two siginificant figures

step-1: Change gallons to quarts

we know that

1 gallon = 4 quarts

so, we can write as

$0.073gallons=0.073*1gallon$

$0.073gallons=0.073*4quarts$

$0.073gallons=0.292quarts$

step-2: Change into liter

$0.073gallons=0.292quarts$

we know that

1 liter = 1.057 quarts

$1 quart=\frac{1}{1.057} litre$

$0.073gallons=0.292*1quarts$

$0.073gallons=0.292*\frac{1}{1.057} litre$

$0.073gallons=0.27625 litre$

step-3: Change into millilitre

we know that

$1L=1000mL$

$0.073gallons=0.27625*1 litre$

$0.073gallons=0.27625*1000 mL$

Since, it is asking for only two significant figures

so, we can also write as

$0.073gallons=0.28*1000 mL$

$0.073gallons=280 mL$ ...................Answer

3 0

3 years ago