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tester [92]
3 years ago
14

Someone please help me. I have 2 questions

Mathematics
2 answers:
emmainna [20.7K]3 years ago
3 0
The first question is letter C
3x + 2 + 1/(2x)

the second question is letter B
x^2 - 12
Xelga [282]3 years ago
3 0
The answer to your first question is c.
fot the second question it is b.
i hope these where the answers you where looking for

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Which the most accurate statement about progress monitoring?
swat32

The most accurate statement about progress monitoring is progress monitoring is a useful way to ensure children are participating in targeted, purposeful, and meaningful math instruction and allows for the teacher to identify the skills children may need additional support in. Option A

<h3>What is progress monitoring?</h3>

Progress monitoring can be defined as a standard process of evaluating or checking progress toward a performance target on the basis of level of improvement from frequent assessment of a skill.

Thus, the most accurate statement about progress monitoring is progress monitoring is a useful way to ensure children are participating in targeted, purposeful, and meaningful math instruction and allows for the teacher to identify the skills children may need additional support in. Option A

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7 0
2 years ago
HELP i’m having trouble with my homework assignments
Aleksandr-060686 [28]

Answer:

Collin: about $401 thousand

Cameron: about $689 thousand

Step-by-step explanation:

A situation in which doubling time is constant is a situation that can be modeled by an exponential function. Here, you're given an exponential function, though you're not told what the variables mean. That function is ...

P(t)=P_0(2^{t/d})

In this context, P0 is the initial salary, t is years, and d is the doubling time in years. The function gives P(t), the salary after t years. In this problem, the value of t we're concerned with is the difference between age 22 and age 65, that is, 43 years.

In Collin's case, we have ...

P0 = 55,000, t = 43, d = 15

so his salary at retirement is ...

P(43) = $55,000(2^(43/15)) ≈ $401,157.89

In Cameron's case, we have ...

P0 = 35,000, t = 43, d = 10

so his salary at retirement is ...

P(43) = $35,000(2^(43/10)) ≈ $689,440.87

___

Sometimes we like to see these equations in a form with "e" as the base of the exponential. That form is ...

P(t)=P_{0}e^{kt}

If we compare this equation to the one above, we find the growth factors to be ...

2^(t/d) = e^(kt)

Factoring out the exponent of t, we find ...

(2^(1/d))^t = (e^k)^t

That is, ...

2^(1/d) = e^k . . . . . match the bases of the exponential terms

(1/d)ln(2) = k . . . . . take the natural log of both sides

So, in Collin's case, the equation for his salary growth is

k = ln(2)/15 ≈ 0.046210

P(t) = 55,000e^(0.046210t)

and in Cameron's case, ...

k = ln(2)/10 ≈ 0.069315

P(t) = 35,000e^(0.069315t)

5 0
3 years ago
In quadrilateral TUVW, m&lt;U = 94º, m &lt;V = 51°, and m&lt;w =67º, what is m&lt;T°?
Vlada [557]
The answer would be c) 129
4 0
3 years ago
X+2/3 + x-1/4=x please answer. I need it b4 2moro
Dmitrij [34]

Answer:

-5/12

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

7 0
2 years ago
Read 2 more answers
In a parallel circuit, ET = 240 V, R = 330 Ω, and XL = 420 Ω. What is Z?
denis-greek [22]

Answer:

Z = 258Ω

Step-by-step explanation:

There are two methods of solving this question,

First method

Z = ( RXL)/ sqr rt ( R²+XL²)

Z= (330 Ω × 420 Ω)/ sqr rt ( 330 Ω² + 420 Ω²)

Z = 138600 Ω /534

Z = 259  Ω

THE second complete method is given in attachment below


6 0
3 years ago
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