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3 years ago

Can someone help me on this math problem PLEASE

Mathematics

1 answer:

egoroff_w [7]3 years ago

7 0

Answer:

QR perpendicular to PT

PR^Q=SR^T=90°

also ANGLES (QPR= STR

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Give another name for plane M

jarptica [38.1K]

Your question makes no sense could you give a better description please

6 0

3 years ago

Kathryn deposits 100 into an account at the beggining of each 4 year period for 40 years. The account credits interest at an eff

OleMash [197]

Answer:

6194.84

Step-by-step explanation:

Using the formula for calculating accumulated annuity amount

F = P × ([1 + I]^N - 1 )/I

Where P is the payment amount. I is equal to the interest (discount) rate and N number of duration

For 40 years,

X = 100[(1 + i)^40 + (1 + i)^36 + · · ·+ (1 + i)^4]

=[100 × (1+i)^4 × (1 - (1 + i)^40]/1 − (1 + i)^4

For 20 years,

Y = A(20) = 100[(1+i)^20+(1+i)^16+· · ·+(1+i)^4]

Using X = 5Y (5 times the accumulated amount in the account at the ned of 20 years) and using a difference of squares on the left side gives

1 + (1 + i)^20 = 5

so (1 + i)^20 = 4

so (1 + i)^4 = 4^0.2 = 1.319508

Hence X = [100 × (1 + i)^4 × (1 − (1 + i)^40)] / 1 − (1 + i)^4

= [100×1.3195×(1−4^2)] / 1−1.3195

X = 6194.84

4 0

4 years ago

Read 2 more answers

What is the vertex of the graph of the following equation? y = x^2 + 2x-3

ExtremeBDS [4]

Answer:

vertex = (- 1, - 4 )

Step-by-step explanation:

Given a parabola in standard form

y = ax² + bx + c ( a ≠ 0 )

Then the x- coordinate of the vertex is

x = - $\frac{b}{2a}$

y = x² + 2x - 3 ← is in standard form

with a = 1, b = 2 , then

x = - $\frac{2}{2}$ = - 1

Substitute x = - 1 into the equation for corresponding value of y

y = (- 1)² + 2(- 1) - 3 = 1 - 2 - 3 = - 4

vertex = (- 1, - 4 )

6 0

3 years ago

The product of a number w and 73

wolverine [178]

W times 73 because product means multiply

3 0

4 years ago

Solve the inequality algebraically. Write the solution in interval notation.<br> |9x + 10| < 15

viva [34]

The given inequality is

$| 9x+ 10 |$

First we need to remove the absolute sign , and when we do so , we will get a compound inequality, that is

$-15< 9x+10 < 15$

To solve for x, first we need to get rid of 10. and for that, we have to do subtraction

$-15-10$

Now we need to get rid of 9, and for that, we do division

$\frac{-25}{9}< x< \frac{5}{9}$

So the required solution is

$( \frac{-25}{9} , \frac{5}{9})$

5 0

3 years ago