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emmasim [6.3K]
3 years ago
12

What is the y-intercept of the line shown? A coordinate plane is shown. A line passes through the y-axis at −1 and through the p

oint 1, 2.
A. −1
B. 0
C. 0.5
D. 1
Mathematics
2 answers:
Triss [41]3 years ago
5 0

Answer:

The correct answer is A. -1

Step-by-step explanation:

The y-intercept is simply the name of the point where the line passes through the y-axis. Since you already stated that that point comes at -1, we know the intercept is -1.

frosja888 [35]3 years ago
3 0

Answer:

                        A, -1

Step-by-step explanation:

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Find the surface area of the given prism​
Wewaii [24]

Answer:

Hello! answer: 432

Step-by-step explanation:

12 × 8 = 96

12 × 8 = 96

12 × 6 = 72

12 × 6 = 72

8 × 6 = 48

8 × 6 = 48

Then you add them all up so...

96 + 96 + 72 + 72 + 48 + 48 = 432 therefore the surface area is 432 hope that helps!

3 0
3 years ago
Jill is a sales person for Mountain Transport. Every month she sells vehicles in this ratio one car for every six bicycles , and
UkoKoshka [18]
One car 1c

six bicycles 6b

two motorcycles

1c+6b+2m=9cbm

I think this is right but its been forever since i had to do these so 
8 0
3 years ago
The tallest tree in the world is reputed to be a giant redwood named Hyperion located in Redwood National Park in California, US
dlinn [17]

Answer:

114.02 meters

Step-by-step explanation:

The information you're given about the tree will form a triangle, with the three corners being the top of the tree, the point where the tree meets the ground, and the specified point 41.5 meters from the tree. The angle of elevation (70°) is the angle made where the line representing the ground and the line connecting the top of the tree to the ground at the specified point connect.

The angle where the tree meets the ground is 90°, so the triangle a right triangle.

So this all means you know one angle of a right triangle (70°) and the side adjacent to this angle (41.5 meters). You're solving for the height of the tree, which is the side opposite of the angle you know. You can solve using either <em>Sine, Cosine, </em>or <em>Tangent.</em>

Use the acronym SOHCAHTOA to figure out which of those three functions to use. Feel free to look this up for more information if you haven't heard of it before. In this case, we're using Tangent (TOA = Tangent, Opposite side, Adjacent side)

To solve using any of those three functions, you'll need a scientific calculator. On your calculator, you'll see the buttons <em>SIN, COS, </em>and<em>TAN.</em> For this problem, press <em>TAN</em> and you'll see something appear that says <em>tan (___)</em>. You'll need to input a number to get your answer, and here's how to find that number:

Again referencing SOHCAHTOA, the "TOA" part lists Opposite first and then Adjacent. This is because you're going to write a fraction with those two numbers, and since Opposite is first, it's the numerator. That means that Adjacent is the denominator. We don't know the value of the opposite side, so it'll be represented by <em>x</em>, and we do know the value of the adjacent side, 41.5. This means the fraction is \frac{x}{41.5} .

This isn't the number to input into the calculator -- you need to isolate the variable:

The original equation is:

tan 70 = x/41.5

Multiply both sides by 41.5 (To cancel out the denominator and isolate <em>x</em>)

tan 70 (41.5) = x

Now you've got the equation for <em>x, </em>you're ready to put this in your calculator.

What appeared on your calculator was:

tan(__)

Input like follows:

(tan(70))41.5

The brackets are needed like that so the calculator knows to multiply the entire thing by 41.5. You might get a wrong answer otherwise.

Hit enter, and you'l get the height of the tree:

114.02 meters

5 0
3 years ago
Geometry please help if you can​
erik [133]

Area \:  of \:  sundial:3.14 \times  \frac{ {8}^{2} }{4}  = 3.14 \times 16 = 50.24 \:  {ft}^{2}  \\ Area \: of \: one \: section: \frac{50.24}{8}  = 6.28 \:  {ft}^{2}

6 0
3 years ago
Help pls 85 points??
blagie [28]
It's because most of them are the same measurements therefore are the same angles. 1 is just the name of the triangle and is based off their sides and measurements
7 0
2 years ago
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