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4 years ago

Need Help ASAP thx!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Mariana [72]4 years ago

5 0

Answer:

The correct answer is D.

Step-by-step explanation:

Take 10 away from 6 then add 4 for the 4 years older she is and it makes 10 add 10 and six for 16 and its there summed age

Ray Of Light [21]4 years ago

3 0

16-4=12
12÷2=6

Shaun is 10
charmaine is 6

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(5x)/6 + 11/4 = 17/3

pantera1 [17]

Answer: Exact Form: x = 7/2

Decimal Form: x = 3.5

Mixed Number Form: x = 3 1/2

How to: <u> Solve for x by simplifying both sides of the equation, then isolating the variable.</u>

Have a great day and stay safe !

3 0

3 years ago

Find the approximate area between the curve f(x) = -4x² + 32x and on the x-axis on the interval [0,8] using 4 rectangles. Use th

Doss [256]

Split up the interval [0, 8] into 4 equally spaced subintervals:

[0, 2], [2, 4], [4, 6], [6, 8]

Take the right endpoints, which form the arithmetic sequence

$r_i=2+\dfrac{8-0}4(i-1)=2i$

where 1 ≤ <em>i</em> ≤ 4.

Find the values of the function at these endpoints:

$f(r_i)=-4{r_i}^2+32r_i=-16i^2+64i$

The area is given approximately by the Riemann sum,

$\displaystyle\int_0^8f(x)\,\mathrm dx\approx\sum_{i=1}^4f(r_i)\Delta x_i$

where $\Delta x_i=\frac{8-0}4=2$ ; so the area is approximately

$\displaystyle2\sum_{i=1}^4(-16i^2+64i)=-32\sum_{i=1}^4i^2+128\sum_{i=1}^4i=-32\cdot\frac{4\cdot5\cdot9}6+128\cdot\frac{4\cdot5}2=\boxed{320}$

where we use the formulas,

$\displaystyle\sum_{i=1}^ni=\frac{n(n+1)}2$

$\displaystyle\sum_{i=1}^ni^2=\frac{n(n+1)(2n+1)}6$

6 0

3 years ago

Sandy was asked to describe the transformation of y=-3(x - 4)^2 - 6 from the parent graph of y=x^2

gavmur [86]

Answer:

As below.

Step-by-step explanation:

The -4 shifts the graph to the right not the left.

The second error is the refection is over the x-axis not the y-axis.

5 0

3 years ago

Please help me I don’t know the answer

lukranit [14]

Answer:

Step-by-step explanation:

the highest real number stops at 4, which means all the sets of real number are less than 4.

4 0

3 years ago

Consider a home mortgage of $250,000 at a fixed APR of 4.5% for 30 years. a. Calculate the monthly payment. b. Determine the t

lianna [129]

Answer:

a. payment: $1266.71

b. total paid: $456, 015.60

c. fraction to principal: 54.8%; fraction to interest: 45.2%

Step-by-step explanation:

The amortization formula tells you the monthly payment is ...

A = P(r/12)/(1 -(1 +r/12)^(-12t))

Payment on principal P at annual rate r for t years.

A = $250,000(0.045/12)/(1 -(1 +0.045/12)^(-12·30)) ≈ $1266.71

The monthly payment is $1266.71.

360 monthly payments of $1266.71 will have a total value of ...

360 × $1266.71 = $456,015.60 . . . . total amount paid

Of course, $250,000 is paid on the principal. That percentage is ...

$250,000/$456,015.60 × 100% ≈ 54.8% . . . to principal

The remaining fraction is paid for interest:

100% -54.8% = 45.2% . . . to interest

8 0

2 years ago