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2 years ago

15

If you knew that the vertical intercept for a straight line was 15, that the slope was -.5, and that the independent variable ha

d a value of 8, the value of the dependent variable would be:

1 answer:

Finger [1]2 years ago

7 0

Y=-.5x+15 plug in 8 for x and you get 11

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Find the value of sinY

Tatiana [17]

Answer:

$\frac{63}{65}$

Step-by-step explanation:

Please see the attached picture.

Let's find the value of the opposite side, XZ.

Applying Pythagoras' Theorem,

(XZ)² +(XY)²= (ZY)²

(XZ)² +16²= 65²

(XZ)²= 4225 -256 <em>(</em><em>bring</em><em> </em><em>constant</em><em> </em><em>to</em><em> </em><em>1</em><em> </em><em>side</em><em>)</em>

(XZ)²= 3969 <em>(</em><em>simplify</em><em>)</em>

<em>Square</em><em> </em><em>root</em><em> </em><em>both</em><em> </em><em>sides</em><em>,</em>

XZ= $\sqrt{3969}$

XZ= 63 <em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>(simplify)</em>

sinY

= XZ/ ZY

$= \frac{63}{65}$

8 0

2 years ago

Emmett has $90,000 in a savings account that earns 5% interest per year. The interest is

harina [27]

Answer:

$1500

Step-by-step explanation:

90000x.05=4500

4500/12=375

375x4=1500

The answer is$1500 Interest he will earn in 4 months

8 0

2 years ago

You work two jobs. You earn $9.45 per hour as a salesperson and $11.34 per hour stocking shelves. Your combined earnings this mo

konstantin123 [22]

Answer:

11.34x + 9.45y = 141.75

y = (141.75 - 11.34x)/9.45

y = -1.2x + 15

Draw a straight line only in the first quadrant connecting these points:

(0,15)

(12.5,0)

6 0

3 years ago

Please help me!!!<br> solve for f : 5/6 f =5<br> 1. 5<br> 2. 4.2<br> 3. 7.3<br> 4. 6

Alik [6]

Answer:

6

Step-by-step explanation:

5 0

2 years ago

What is the directrix of the parabola defined by `(1)/(4)(y + 3) = (x − 2)^2`?

Sauron [17]

The directrix of the parabola is $y = \frac {-49}{16}$

<h3>How to determine the equation of the directrix?</h3>

The parabola equation is given as:

$\frac 14(y + 3) = (x -2)^2$

A parabola is represented as:

$4p(y - k) =(x -h)^2$

By comparing both equations, we have:

4p = 1/4 ==> p = 1/16

-k= 3 ==> k = -3

The directrix is represented as:

y = k - p

So, we have:

$y = -3 - \frac 1{16}$

Take the LCM

$y = \frac {-16 * 3- 1}{16}$

Evaluate

$y = \frac {-49}{16}$

Hence, the directrix of the parabola is $y = \frac {-49}{16}$

Read more about parabola at:

brainly.com/question/1480401

#SPJ1

4 0

1 year ago