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Lady_Fox [76]
3 years ago
8

Rewrite 1/2 * 1/2 as an exponential expression with a base of 2.

Mathematics
2 answers:
scoundrel [369]3 years ago
5 0

Answer:

1^-2

Step-by-step explanation:

1/2*1/2=1/4=1/2^2=1^-2

algol [13]3 years ago
5 0

Answer:

2 ^-2

Step-by-step explanation:

Edmentum

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Which answers describe the end behaviors of the function modeled by the graph?
likoan [24]

Answer:

As x increases without bound, f(x) increases without bound.

Step-by-step explanation:

Given\ f(x)=413x+3\\f(1)=413+3=416\\f(2)=413\times 2+3=829\\f(3)=413\times 3+3=1242\\.\\.\\.\\

Hence with the increasing value of x, f(x) increases.

x can be any value between -\infty to \infty and f(x) can have any value between -\infty to \infty.

Hence as x increases without bound, f(x) increases without bound.

This can be seen from the graph attached(with the increasing value of x, f(x) increases.

5 0
4 years ago
Find the area between 150 and 175 under a normal distribution curve with a mean of 120 and a standard deviation of 50.
polet [3.4K]

Answer:

6tdd

Step-by-step explanation:

ddaedt

3 0
3 years ago
John wants to measure the width of a stream using the methods he has learned in geometry. He puts a stake in the ground opposite
otez555 [7]

John's method to determine the width of the stream uses the knowledge

that the tangent of 60° is approximately 1.7.

The proper sequence John would use to find the width of the stream are;

  • Step 1; <u>John</u><u> drives a stake opposite the tree to establish a line between two points</u>

  • Step 2; <u>John uses a </u><u>compass </u><u>to walk away from the stakes at a right angle</u>

  • Step 3; <u>On the path John walks until he finds a </u><u>line </u><u>of sight to the tree that equals 60 degrees</u>

  • Step 4; <u>John drives a second </u><u>stake </u><u>in the ground</u>

  • Step 5; <u>John measures the the </u><u>distance </u><u>between the two stakes</u>

  • Step 6; <u>John </u><u>multiplies </u><u>the distance between the two stakes by</u><u> 1.7</u><u> to find the distance</u>.

Reasons:

The steps that can be used to measure the width of the stream are;

Step 1: Drive a stake opposite the tree on the other side of the stream.

Step 2: With the aid of a compass, walk at right angles to the line formed by the stake and the tree.

Step 3; Keep walking along the previous path till a point is reached where the angle formed between the line of site to the tree and the walk path is 60°.

Step 4; At the point where the line of sight to the tree is 60°, a second stake is driven in the ground.

Step 5; Measure the distance between the stakes that are placed in the ground.

Step 6; Given that by trigonometry, the ratio of the width of the stream to the distance between the two stakes is tan(60°) ≈ 1.7, multiply the distance between the two stakes by 1.7 to find the width of the stream.

\displaystyle tan(60^{\circ}) = \mathbf{\frac{Width \ of \ stream}{Distance \ between \ stakes}}

<em>The possible question options are;</em>

<em>John measures the the distance between the two stakes</em>

<em>John uses a compass to walk away from the stakes at a right angle</em>

<em>John multiplies the distance between the two stakes by 1.7 to find the distance</em>

<em>John drives a second stake in the ground</em>

<em>On the path John walks until he finds a line of sight to the tree that equals 60 degrees </em>

<em>John drives a stake opposite the tree to establish a line between two points.</em>

Learn more about trigonometric ratios here:

brainly.com/question/13276558

3 0
3 years ago
Solve for x: 2xsquared+4x-16=0
sergejj [24]
        2x² + 4x - 16 = 0
2(x²) + 2(2x) - 2(8) = 0
        <u>2(x² + 2x - 8)</u> = <u>0</u>
                  2             2
           x² + 2x - 8 = 0
                          x = <u>-(2) ± √((2)² - 4(1)(-8))</u>
                                               2(1)
                          x = <u>-2 ± √(4 + 32)</u>
                                           2
                          x = <u>-2 ± √(36)
</u>                                       2<u>
</u>                          x = <u>-2 ± 6
</u>                                    2<u>
</u>                          x = -1 ± 3
                          x = -1 + 3    U    x = -1 - 3
                          x = 2                  x = -4
<u />
7 0
3 years ago
Simplify. cos^2[(pi/2) - x] + cos^2[(pi/2) - x] + cos^2x
Ipatiy [6.2K]

Numerator
<span><span>cos<span>(<span>π/2</span>−x)</span></span>=<span>cos<span>(<span>π/2</span>)</span></span><span>cosx</span>+<span>sin<span>(<span>π/2</span>)</span></span><span>sinx</span></span>

now <span><span>cos<span>(<span>π/2</span>)</span></span>=0 and <span>sin<span>(<span>π/2</span>)</span></span>=1</span>

simplifies to : 0 + sinx = sinx

Denominator

<span><span>sin<span>(<span>π/2</span>−x)</span></span>=<span>sin<span>(<span>π/2</span>)</span></span><span>cosx</span>+<span>cos<span>(<span>π/2</span>)</span></span><span>sinx</span></span>

simplifies to : cosx + 0 = cosx

<span>⇒<span><span>cos<span>(<span>π/2</span>−x)</span></span><span>sin<span>(<span>π/2</span>−x)</span></span></span>=<span><span>sinx/</span><span>cosx</span></span>=<span>tan<span>x</span></span></span>

5 0
4 years ago
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