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9 months ago

ASAP PLS I NEED IT AND TY

Mathematics

2 answers:

mars1129 [50]9 months ago

8 0

<h2>Dilations and Scale Factors</h2>

When we're solving with scale factors, we either divide or multiply.

If the shape becomes larger, we multiply to get the new length.

If the shape becomes smaller, we divide to get the new length.

<h2>Solving the Question</h2>

We're given:

Original side length is 2.5 units
Scale factor = 6

Because the shape becomes larger, we have to multiply the original side length by the scale factor, 6, to get the new side length.

2.5 x 6 = 15

Therefore, the missing side length is 15 units.

<h2>Answer</h2>

15 units

jeka57 [31]9 months ago

7 0

Answer:

Step-by-step explanation:

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In the Ardmore Hotel, 20 percent of the guests (the historical percentage) pay by American Express credit card. (a) What is the

xxMikexx [17]

Answer:

(a) The expected number of guests until the next one pays by American Express credit card is 4.

(b) The probability that the first guest to use an American Express is within the first 10 to checkout is 0.0215.

Step-by-step explanation:

The random variable <em>X</em> can be defined as the number of guests until the next one pays by American Express credit card

The probability that a guest paying by American Express credit card is, <em>p</em> = 0.20.

The random variable <em>X</em> follows a Geometric distribution since it is defined as the number of trials before the first success.

The probability mass function of <em>X</em> is:

$P(X=x)=(1-p)^{x}p;\ x=0,1,2,3...,\ 0$

(a)

The expected value of a Geometric distribution is:

$E(X)=\frac{1-p}{p}$

Compute the expected number of guests until the next one pays by American Express credit card as follows:

$E(X)=\frac{1-p}{p}$

$=\frac{1-0.20}{0.20}$

$=4$

Thus, the expected number of guests until the next one pays by American Express credit card is 4.

(b)

Compute the probability that the first guest to use an American Express is within the first 10 to checkout as follows:

$P(X=10)=(1-0.20)^{10}\times0.20$

$=0.1073741824\times 0.20\\=0.02147483648\\\approx0.0215$

Thus, the probability that the first guest to use an American Express is within the first 10 to checkout is 0.0215.

3 0

2 years ago

Graph y+6=45(x+3) using the point and slope given in the equation

il63 [147K]

Step-by-step explanation:

We have been given an equation y+6=45(x+3) in point slope form.

It says to use the point and slope from given equation to create the graph.

So compare equation y+6=45(x+3) with point slope formula

y-y1=m(x-x1)

we see that m=45, x1=-3 and y1=-6

Hence first point is at (-3,-6)

slope m=45 is positive so to find another point, previous point will move 45 units up then 1 unit right and reach at the location (-2,39).

Now we just graph both points (-3,-6) and (-2,39) and join them by a straight line. Final graph will look like the attached graph.

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2 years ago

I don’t understand the question

kipiarov [429]

Answer:

Answer is given below with explanations.

Step-by-step explanation:

$- 13 {x}^{2} \: has \: only \: one \: term \: and \: highest \: degree \: is \: 2 \\$

1) Option d) Monomial degree 2

$- 8 {y}^{7} - 3 \: has \: two \: terms \: and \: highest degree \: is \: 7$

2) Option c) Binomial degree 7

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>.</em>

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2 years ago

Solve the proportion 18/2 = t/7

Firlakuza [10]

Answer:

t=63

Step-by-step explanation:

2t = 126

t=63

3 0

1 year ago

Read 2 more answers

Use a calculator to evaluate sec 85°. a:-1.016. b:-5.679. c:1.004. d:11.474

KatRina [158]

The correct answer to this question is this one: "D. 11.474"

your calculator probably doesn't do "secant". But sec is 1/cos
so do cos(85) (in degree mode, not radian mode) then "invert it": 1 / ANS or x^-1 if you have that key

or type
1/cos(85 degrees)= <span>11.4737</span>

7 0

2 years ago