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scZoUnD [109]
3 years ago
14

What is the value of |-7| - |3| A. -10 B. -4 C. 4 D. 10

Mathematics
2 answers:
e-lub [12.9K]3 years ago
7 0

Answer:

10

Step-by-step explanation:

yarga [219]3 years ago
3 0

Answer:

B

Step-by-step explanation:

the absolute value of -7 is 7 and the absolute value of 3 is 3, since the subtraction symbol is between the two absolute values, the question is asking  7-3

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It took Michael 279 hours to drive home because of traffic. His sister drove the same distance in 12 of Michael’s time. How long
NemiM [27]

23.25 hours because if you can divide 279 hours (michael) divided by  12, you would get 23 hours and 25minutes

6 0
3 years ago
Find the largest interval which includes x = 0 for which the given initial-value problem has a unique solution. (Enter your answ
Ivan

Answer:

(-\infty,3)

Step-by-step explanation:

We are given that

(x-3)y''+4y=x

y''+\frac{4}{x-3}y=\frac{x}{x-3}

y(0)=0

y'(0)=1

By comparing with

y''+p(x)y'+q(x)y=g(x)

We get

p(x)=\frac{4}{x-3}

g(x)=\frac{x}{x-3}

q(x)=0

p(x),q(x) and g(x) are continuous for all real values of x except 3.

Interval on which p(x),q(x) and g(x) are continuous

(-\infty,3)and (3,\infty)

By unique existence theorem

Largest interval which contains 0=(-\infty,3)

Hence, the larges interval on which includes x=0 for which given initial value problem has unique solution=(-\infty,3)

7 0
3 years ago
Evaluate piecewise functions
Vika [28.1K]

Answer:

F(4) = 9

Step-by-step explanation:

Notice that for f(4), we need to use the function definition for the partitioned Domain that includes x = 4, and that is the expression :

f(x) = x^2-7

Therefore:

f(4) = 4^2-7 = 16-7 =9

5 0
3 years ago
Sterling silver is an alloy of silver that is 92.5% pure silver. If x grams
nlexa [21]

Answer:

D. 0.925x + 0.88y = 0.91(x + y)  

Step-by-step explanation:

The important point to remember is that the total mass of pure silver is the same on each side of the equation.

0.925x = mass of pure silver in first alloy

0.88  y = mass of pure silver in second alloy

The final alloy has a mass of (x + y) g and is 91 % pure silver, so

0.925x + 0.88y = 0.91(x + y)

5 0
3 years ago
Read 2 more answers
3.74 - 1.53 =<br> I need help
galina1969 [7]

Answer:2.21

Step-by-step explanation:I used a calculator

7 0
3 years ago
Read 2 more answers
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