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3 years ago

Tell whether the set of ordered pairs satisfies an exponential function. Explain your answer.

Mathematics

2 answers:

sertanlavr [38]3 years ago

8 0

<h2>Answer:</h2><h2>Yes.</h2>

For each increment of x, they value is halved.

This can be represented by the function f (x) =0.5^x. The initial value is one

Nata [24]3 years ago

5 0

Yes.
For each increment of x, the y value is halved. This can be represented by the function f(x)= 0.5^x.
The initial value here is 1 because when x=0, y=1.

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Use elimination to solve each system of equations.

Allushta [10]

Answer:

x=-3

Y=-5

Step-by-step explanation:

2x-y=-1 ×2

3x-2y=1. ×1

4x-2y= -2

3x-2y=1

eliminate y by subtracting

7 0

3 years ago

The little Mexican restaurant sells only two kinds of beef burritos mucho beef sandwich Lucho beef last week the restaurant orde

Finger [1]

Answer:

Cost of a single Mucho beef burrito: $\$5.5$

Cost of a double Mucho beef burrito: $\$6.5$

Step-by-step explanation:

<h3> The exercise is: "The Little Mexican restaurant sells only two kinds of beef burritos: Mucho beef and Mucho Mucho beef. Last week in the restaurant sold 16 orders of the single Mucho variety and 22 orders of the double Mucho. If the restaurant sold $231 Worth of beef burritos last week and the single neutral kind cost $1 Less than the double Mucho, how much did each type of burrito cost?"</h3>

Let be "x" the the cost in dollars of a single Mucho beef burrito and "y" the cost in dollars of a double Mucho burrito.

Set a system of equations:

$\left \{ {{16x+22y=231} \atop {x=y-1}} \right.$

To solve this system you can apply the Substitution Method:

1. Substitute the second equation into the first equation and solve for "y":

$16(y-1)+22y=231\\\\16y-16+22y=231\\\\38y=231+16\\\\y=\frac{247}{38}\\\\y=6.5$

2. Substitute the value of "y" into the second equation and evaluate in order to find the value of "x":

$x=6.5-1\\\\x=5.5$

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3 years ago

Prove, cotx -tanx= 2 cot2x

ra1l [238]

Step-by-step explanation:

cotx- tanx= 2cot2x

L.H.S

 cosx/sinx- sinx/cosx

(cos²x- sin²x)/ sinxcosx

[ cos²x-(1-cos²x)]/sinxcosx

( 2cos²x-1)/sinxcosx

2cosx/ 2sinxcosx

2cot2x

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3 years ago

Help please ill give brainliest answer

mihalych1998 [28]

Answer:

ΔLMN ≅ ΔLQP by (SAA)

Step-by-step explanation:

It is given that line (NM) is congruent to the line (PQ), meaning they have the same measure. This is signified by the small red line on each of these sides.

Moreover, it is also given that angle (MNL) is congruent to angle (QPL), this is shown by the red arc around these angles.

Finally one can figure out that angle (NLM) is congruent to angle (PLQ) by the vertical angles theorem. The verticle angles theorem states that when two lines intersect, the opposite angles are congruent.

Thus the two triangles are congruent by side-angle-angle postulate, abbreviated as (SAA).

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3 years ago

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Rus_ich [418]

Answer:

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