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2 years ago

Help please I’ll mark you brainliest

Mathematics

1 answer:

Butoxors [25]2 years ago

3 0

Use the explicit formula a↓n=a↓1+(n-1)d to find the 1000th term of the sequence below. 24,31,38,45,52,..

a(1000) = 24 + 999*7 = 7017 Thus your answer is A

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A construction crew is lengthening a road. The road started with a length of 59 miles, and the crew is adding 3 miles to the roa

AlekseyPX

L = total length

D = number of days

they add 3 miles per day which = 3D

equation: L = 59 +3D

if they worked for 34 days, replace D with 34 to get:

L = 59 +3(34) =

L=59 + 102

L=161 miles total length after 34 days

5 0

3 years ago

9 - 4(2x - 1) = 45 please help

ddd [48]

Answer:

$x=-4$

Step-by-step explanation:

$9-4(2x-1)=45$

First, we expand the equation using the distributive rule:

$x(y-z)=xy-xz$

Hence, $9-4*2x-4*-1=45$

Simplify: $9-8x+4=45$

Add like terms:

$13-8x=45$

Subtract 13 from both sides: $-8x=32$

Divide both sides by -8:

$x=-4$

5 0

3 years ago

For example, Let's say I am graphing a proportional relationship even If it doesn't go through origin and it is an equivalent ra

Lostsunrise [7]

A proportional relationship is described by the equation

... y = k·x

The point (x, y) = (0, 0) is always a solution to this equation.

_____

In short, if the relationship is proportional, its graph will go through the origin. If the graph does not go through the origin, the relationship is not proportional.

___

Note that this is true if the domain includes the origin. You can have y = kx for x > 10 and the graph will not go through the origin because the function is not defined there.

6 0

3 years ago

g A visit to a hospital emergency room for something as simple as a sore throat could have a mean cost of $328. Assume that this

Rasek [7]

Answer:

The cut-off dollar amount is $328.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean cost of $328, standard deviation of $82.

This means that $\mu = 328, \sigma = 82$

If you want to be in the bottom 50%, what will be the cut-off dollar amount?

The 50th percentile, which is X when Z has a pvalue of 0.5. So X when Z = 0.

$Z = \frac{X - \mu}{\sigma}$

$0 = \frac{X - 328}{82}$

$X - 328 = 0*82$

$X = 328$

The cut-off dollar amount is $328.

7 0

2 years ago

Which of the graphs above is the graph of the equation below? Y=x^3-6x^2+11x-6=(x-3)(x-2)(x-1)

____ [38]

Answer:

answer Z

Step-by-step explanation:

Look for a graph that contains the following zeros: x = 1, x = 2 , x= 3, following the info derived by the binomial factors that the function contains. Also look ate the fact that the function in question has for leading term positive $x^3$ , then this function must go towards plus infinity when x becomes large. This is the case for the graph option Z (the last graph of the group)

7 0

3 years ago