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FinnZ [79.3K]
3 years ago
8

Write an equation in point-slope form that passes through ( -4, 2) and has a slope of 3. *

Mathematics
1 answer:
hram777 [196]3 years ago
7 0
Option 2 i believe .
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For which value of theta is sine theta = negative 1?
Ivan

Answer:

1) 270 degrees

2)  pi/4 rad

Step-by-step explanation:

1.) For which value of theta is sine theta = negative 1?

Given

sintheta = -1

theta = arcsin(-1)

theta = -90degrees

Since sin is negative in the third and 4th quadrant

In the third quadrant, theta = 180 + 90 = 270degrees

In the fourth quadrant, theta = 360 - 90 = 270 degrees

Hence the required value of theta is 270degrees

2) Given the radius of the circle to be 1, the y axis value will also be 1 units

Opposite = 1

adjacent = 1

hyp = √1²+1²

hyp = √2

sin theta = opp/hyp

sin theta = 1/√2

theta = arccsin(1/√2)

theta = 45 degrees

Express in radians

45 degrees = pi/4 radians

Hence the required angle in the first quadrant is pi/4 rad

4 0
2 years ago
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A loan of $12,500 at 9% is to be repaid with n level payments. if in = 128.04, what is the value of n?
Lisa [10]

present value of annuity = annual payment * [ 1 - (1+i)^-n ]/i

=>

12500 = 128.04 * [1-(1+9%/12^-n]/9%/12

=>n = 42 payments

6 0
3 years ago
20 points 2^-3 * 2^x * 2^x+2
Ivanshal [37]

Apply a law of  exponents. When multiplying you add the exponents:-

2^-3 * 2^x * 2^(x+2)

= 2 ^(-3 + x + x + 2)

=  2^(2x - 1) Answer

8 0
3 years ago
A bread recipe requires 3 cups of flour to make 24 servings
spin [16.1K]
I can’t understand the question. If you’re looking at how many servings does a cup of flour make, the answer will be 8.
24 servings/3 cups
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3 years ago
Val scored 85% on a test with 60 multiple-choice problems. How many problems did Val answer correctly?
MAVERICK [17]
You use the expression:

X/60 = 85/100

You will have to multiply 60 by 85, then divide it by 100 which is...

51 questions correct
7 0
3 years ago
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