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Brut [27]
3 years ago
5

Which of the following equations have infinitely many solutions? Choose all answers that apply: Choose all answers that apply: (

Choice A) A x-37=x-37x−37=x−37x, minus, 37, equals, x, minus, 37 (Choice B) B 73x-37=73x-3773x−37=73x−3773, x, minus, 37, equals, 73, x, minus, 37 (Choice C) C 37x-37=37x-3737x−37=37x−3737, x, minus, 37, equals, 37, x, minus, 37 (Choice D) D 74x-37=74x-3774x−37=74x−37
Mathematics
2 answers:
TiliK225 [7]3 years ago
5 0

Answer:

All options are correct.

Step-by-step explanation:

In option (A), the given equation is

x-37=x-37

Add 37 on both sides.

x-37+37=x-37+37

x=x

Subtract x from both sides.

x-x=x-x

0=0

LHS=RHS for all values of x. It means equation x-37=x-37 has infinite many solutions.

Similarly.

In option (B), the given equation is

73x-37=73x-37

73x=73x

0=0

LHS=RHS for all values of x. It means equation 73x-37=73x-37 has infinite many solutions.

In option (C), the given equation is

37x-37=37x-37

37x=37x

0=0

LHS=RHS for all values of x. It means equation 37x-37=37x-37 has infinite many solutions.

In option (D), the given equation is

74x-37=74x-37

74x=74x

0=0

LHS=RHS for all values of x. It means equation 74x-37=74x-37 has infinite many solutions.

Therefore, all options are correct.

prisoha [69]3 years ago
5 0

Answer:−6x+35=−6x+35

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You deposit $2,000 in an account. The account earns $600 simple interest in 8 years.
attashe74 [19]

Answer:

4%

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

t=8\ years\\ P=\$2,000\\ I=\$600\\r=?

substitute in the formula above

600=2,000(8r)

solve for r

600=16,000(r)

r=600/16,000

r=0.0375

Convert to percent

r=0.0375*100=3.75\%

Round to the nearest whole percent

4%

4 0
4 years ago
How do you solve a SSS triangle?
svetoff [14.1K]
Bye dividing one third and multiplying by pi
4 0
3 years ago
Read 2 more answers
The range of y = - 32x ^ 2 + 90x + 3
mariarad [96]

Given:

The given function is:

y=-32x^2+90x+3

To find:

The range of the given function.

Solution:

We have,

y=-32x^2+90x+3

It is a quadratic function because the highest power of the variable x is 2.

Here, the leading coefficient is -32 which is negative. So, the graph of the given function is a downward parabola.

If a quadratic function is f(x)=ax^2+bx+c, then the vertex of the quadratic function is:

Vertex=\left(\dfrac{-b}{2a},f(\dfrac{-b}{2a})\right)

In the given function, a=-32,b=90,c=3.

\dfrac{-b}{2a}=\dfrac{-90}{2(-32)}

\dfrac{-b}{2a}=\dfrac{-90}{-64}

\dfrac{-b}{2a}=\dfrac{45}{32}

The value of the given function at x=\dfrac{45}{32} is:

y=-32(\dfrac{45}{32})^2+90(\dfrac{45}{32})+3

y=\dfrac{2121}{32}

The vertex of the given downward parabola is \left(\dfrac{45}{32},\dfrac{2121}{32}\right). It means the maximum value of the function is y=\dfrac{2121}{32}. So,

Range=\left\{y|y\leq \dfrac{2121}{32}\right\}

Range=\left(-\infty, \dfrac{2121}{32}\right ]

Therefore, the range of the given function is \left (-\infty, \dfrac{2121}{32}\right ].

8 0
3 years ago
Directions: Answer true or false. If false, provide a counterexample.
Arisa [49]

Natural numbers are closed under division: false.

A set is closed under a certain operation if the results of that operation are always inside that set.

So, if natural numbers were closed under division, the division of two natural numbers would always be a natural number.

You have plenty of counterexamples, to pick one you may divide any odd number by 2: 5/2 is not a natural number.

Negative numbers are closed under addition: true.

Let m,n be two positive numbers. So, -m,-n are two negative numbers. Their sum is

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And since m+n is positive, we deduce that -(m+n) is negative, so the sum of two negative numbers is still negative.

Prime numbers are closed under subtraction: false.

This would mean that the subtraction of two primes is also a prime. Again, there are many counterexamples: 7 is prime and so is 3, but their difference 7-3 is 4, which is not prime.

7 0
3 years ago
Solve for x <img src="https://tex.z-dn.net/?f=%20S%3D7%20x%5E%7B2%7D%20" id="TexFormula1" title=" S=7 x^{2} " alt=" S=7 x^{2} "
il63 [147K]
S = 7x^2....divide both sides by 7
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