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3 years ago

Examine the functions below. Which statement is true?

Mathematics

1 answer:

Alenkasestr [34]3 years ago

8 0

Answer:

Equation 2 is non-linear, Equation 1 is linear.

Step-by-step explanation:

A linear equation is an equation with a constant gradient and can be expressed in the form y = mx + c. Hence Equation 1 Satisfies this as it is in that form and has a constant gradient of 4. Equation 2 is not in the form y = mx + c since there is a square and hence its non-linear.

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Find the area of the composite figure, Pre Algebra.

baherus [9]

Answer:

1080ft squared

Step-by-step explanation:

25*25=625

13*35=455

455+625=1080ft squared

5 0

3 years ago

Factor completely 625x4 − 81.

Marina CMI [18]

The correct answer is D

6 0

3 years ago

Suppose you wanted to estimate the difference between two population means correct to within 4.8 at the 92% confidence level. If

fredd [130]

Answer: $n_1=n_2=4$

Step-by-step explanation:

Given : Margin of error : E= 4.8

Confidence level : 92%

Significance level : $1-0.92=0.08$

$\sigma_1^2=\sigma_1^2\approx12$

Two-tailed critical value :-

$z_{\alpha/2}=z_{0.08/2}=z_{0.04}=1.75$

If we want to select independent random samples of equal size from the populations,

Formula for the sample size :

$n_1=n_2=(\dfrac{z_{\alpha/2}}{E})^2(\sigma_1^2+\sigma_2^2)$

Then buy using given values , we have

$n_1=n_2=(\dfrac{1.75}{4.8})^2(12+12)$

Simplify ,

$n_1=n_2=(\dfrac{1.75}{4.8})^2(12+12)=3.190\approx4$ [Round to the next integer.]

Hence, the The sample sizes should be: $n_1=n_2=4$

5 0

4 years ago

I could really use some help , ive never done this before .:,)

USPshnik [31]

Answer:

Step-by-step explanation: This is what i can do

1. The first graph belongs to this question

$3p+4\geq -14 , 1-5p\geq -39\\\\\mathrm{Isolate}\:y\:\mathrm{for}\:3y+4\ge \:-14:\quad y\ge \:-6\\\\\mathrm{Isolate}\:y\:\mathrm{for}\:1-5y\ge \:-39:\quad y\le \:8\\\\=\begin{bmatrix}y\ge \:-6\\ y\le \:8\end{bmatrix}\\\\\mathrm{1.\:Graph\:each\:inequality\:separately.}\\\mathrm{2.\:Choose\:a\:test\:point\:to\:determine\:which\:side\:of\:the\:line\:needs\:to\:be\:shaded.}\\$

$3.\:The\:solution\:to\:the\:system\:, will\:be\\\:the\:area\:where\:the\:shadings\:from\:each\:\\inequality\:overlap\:one\:another.\\\\\mathrm{See\:graph\:below.}\\\\\begin{bmatrix}y\ge \:-6\\ y\le \:8\end{bmatrix}\quad \mathrm{Unbounded}$

8 0

3 years ago

Help please i’m really stuck and i need help please

7nadin3 [17]

X+10+3x+18=180 is the first part
4x+28=180
4x=152
x=38

6 0

4 years ago