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Nadya [2.5K]
2 years ago
10

Please help, I will give brainliest. I am struggling badly.

Mathematics
2 answers:
DedPeter [7]2 years ago
5 0
Pretty sure it’s C the line crosses in 8x and it’s a positive line
DaniilM [7]2 years ago
4 0

Answer:

B

Step-by-step explanation:

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Help me please this was due yesturday​
stepan [7]

Step-by-step explanation:

<em>Slope</em><em> </em><em>intercept</em><em> </em><em>form</em><em> </em><em>is</em>

<em>y = mx + b</em>

<em>where</em><em> </em><em>m</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>slope</em><em>(</em><em> </em><em>average</em><em> </em><em>rate</em><em> </em><em>of</em><em> </em><em>change</em><em>)</em><em> </em><em>and</em><em> </em><em>b</em><em> </em><em>is</em><em> </em><em>the</em>

<em> </em><em>y</em><em> </em><em>intercept</em><em>(</em><em> </em><em>the</em><em> </em><em>y</em><em> </em><em>value</em><em> </em><em>when</em><em> </em><em>x</em><em> </em><em>is</em><em> </em><em>zero</em><em>)</em><em>.</em>

<em>When</em><em> </em><em>x</em><em>=</em><em>0</em><em>,</em><em> </em><em>y</em><em> </em><em>is</em><em> </em><em>2</em><em>.</em><em> </em><em>This</em><em> </em><em>means</em><em> </em><em>b</em><em>=</em><em>2</em>

<em>Slope</em><em> </em><em>is</em><em> </em><em>change</em><em> </em><em>in</em><em> </em><em>y</em><em> </em><em>value</em><em>/</em><em> </em><em>change</em><em> </em><em>in</em><em> </em><em>x</em><em> </em><em>value</em><em>.</em><em> </em><em>Another</em><em> </em><em>obvious</em><em> </em><em>arbitrary</em><em> </em><em> </em><em>point</em><em> </em><em>we</em><em> </em><em>are</em><em> </em><em>given</em><em> </em><em>is</em><em> </em><em>(</em><em>-8</em><em>,</em><em>0</em><em>)</em><em>.</em>

<em>So</em><em> </em><em>let</em><em> </em><em>use</em><em> </em><em>the</em><em> </em><em>formula</em><em> </em><em>we</em><em> </em><em>given</em><em>.</em>

<em>So</em><em> </em><em>our</em><em> </em><em>slope</em><em> </em><em>is</em><em> </em><em>1</em><em>/</em><em>4</em><em> </em><em>so</em><em> </em><em>our</em><em> </em><em>equation</em><em> </em><em>is</em><em> </em>

<em>1</em><em>/</em><em>4x</em><em>+</em><em>2</em>

6 0
2 years ago
Shelia's measured glucose level one hour after a sugary drink varies according to the normal distribution with μ = 117 mg/dl and
TiliK225 [7]

Answer:

The level L such that there is probability only 0.01 that the mean glucose level of 6 test results falls above L is L = 127.1 mg/dl.

Step-by-step explanation:

To solve this problem, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

Central limit Theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 117, \sigma = 10.6, n = 6, s = \frac{10.6}{\sqrt{6}} = 4.33

What is the level L such that there is probability only 0.01 that the mean glucose level of 6 test results falls above L ?

This is the value of X when Z has a pvalue of 1-0.01 = 0.99. So X when Z = 2.33.

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

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

2.33 = \frac{X - 117}{4.33}

X - 117 = 2.33*4.33

X = 127.1

The level L such that there is probability only 0.01 that the mean glucose level of 6 test results falls above L is L = 127.1 mg/dl.

6 0
3 years ago
Pleas help me find the answer and show the work to this question
lions [1.4K]

Answer:

Leg\ 1 = 8

Leg\ 2 = 15

Step-by-step explanation:

Given: See Attachment

Required

Determine the length of the legs

To do this, we apply Pythagoras theorem.

Hyp^2 = Adj^2 + Opp^2

In this case:

17^2 = x^2 + (2x- 1)^2

Open Bracket

17^2 = x^2 + 4x^2- 2x-2x + 1

17^2 = 5x^2 - 4x + 1

289= 5x^2 - 4x + 1

Collect Like Terms

5x^2 - 4x + 1 - 289 = 0

5x^2 - 4x - 288 = 0

Solving using quadratic formula:

x = \frac{-b\±\sqrt{b^2 - 4ac}}{2a}

So:

x = 8 or x = -7.2

Since, x can't be negative, then:

x = 8

One of the leg is:

Leg\ 1 = x

Leg\ 1 = 8

Leg\ 2 = 2x - 1

Leg\ 2 = 2*8 - 1

Leg\ 2 = 16 - 1

Leg\ 2 = 15

6 0
2 years ago
I will give brainiest to whoever answers correctly !!
Lena [83]
Answer: the mark up price of the fish dinner is around 36.36%

Explanation: 18.75 - 13.75/13.75=5
5 divided by 13.75= 0.36363636.

Hope this helps!
3 0
3 years ago
If dab=125 what is the measure of cba justify your reasoning
KonstantinChe [14]
The answer is <span>D. x=y-z-9/7</span>
8 0
3 years ago
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