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Fudgin [204]
2 years ago
9

Please help with this math problem! :)

Mathematics
2 answers:
otez555 [7]2 years ago
7 0

Answer:

look at the photo..................

ss7ja [257]2 years ago
3 0

Answer:

x = 4.8 , y = 4

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

\frac{KJ}{NP} = \frac{KL}{NM} , substitute values

\frac{x}{3} = \frac{8}{5} ( cross- multiply )

5x = 24 ( divide both sides by 5 )

x = 4.8

and

\frac{JL}{PM} = \frac{KL}{NM} , that is

\frac{6.4}{y} = \frac{8}{5} ( cross- multiply )

8y = 32 ( divide both sides by 8 )

y = 4

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Write the following comparison as a ratio reduced to lowest terms <br><br> 31 hours to 7 days​
alina1380 [7]
31:7 days hope this helps.
7 0
2 years ago
PLEASE HELP ITS DUE NOW!!!!!!<br> WILL MARK BRAINLIEST!!!!!
Sindrei [870]

Answer:

(- 4, - 10 )

Step-by-step explanation:

y = 5x + 10 → (1)

y = 4x + 6 → (2)

Substitute y = 5x + 10 into (2)

5x + 10 = 4x + 6 ( subtract 4x from both sides )

x + 10 = 6 ( subtract 10 from both sides )

x = - 4

Substitute x = - 4 into either of the 2 equations and evaluate for y

Substituting into (1)

y = 5(- 5) + 10 = - 20 + 10 = - 10

solution is (- 4, - 10 )

5 0
3 years ago
Read 2 more answers
What is the critical f-value when the sample size for the numerator is four and the sample size for the denominator is seven? us
fgiga [73]

Assuming that we are performing a two-tailed test, the significance level is α = 0.1 would be dispersed in the distribution's tails with α/2  = 0.05.

And we must consider two critical values that add up to 0.05 of a area on every tail of a F distribution with a 10 degree angle.

\begin{aligned}&F_{\alpha / 2}=0.311 \\&F_{1-\alpha / 2}=4.06\end{aligned}

<h3>What is critical f-value?</h3>

An F statistic is one that is ascertained through an ANOVA test. It helps determine the relevance of the variable groups.

Now, according to the question;

We understand that sample size for numerator is 11 and also the sample size for denominator is 7. So, for each case, we can calculate a degrees of freedom as follows:

\begin{aligned}&d f_{\text {num }}=11-1=10 \\&d f_{d e n}=7-1=6\end{aligned}

In this case, the F distribution could have 10 degrees of freedom with in numerator as well as 6 degrees of freedom in the denominator.

Assuming we are conducting a two-tailed test, the significance level of α = 0.1 will be distributed in the tails of the distribution with α/2  = 0.05.

Now, locate two critical values that collect 0.05 of a area on every tail of F distribution to 10 degrees of freedom again for numerator and 6 degrees of freedom for the denominator and we obtained using a table or excel;

\begin{aligned}&F_{\alpha / 2}=0.311 \\&F_{1-\alpha / 2}=4.06\end{aligned}

Therefore, the critical f-value for the two-tailed experiment is found.

To know more about the critical f-value, here

brainly.com/question/17164520

#SPJ4

5 0
1 year ago
Write an expression that represents the quotient of r and 3
elena-s [515]
Quotient means divide, so the expression would be r/3, I believe

hope it helps
5 0
3 years ago
Will give brainlst <br> Have a nice day
Wittaler [7]

Answer:

x = 3.5

y = 8x + 12

Step-by-step explanation:

1) Given the equation

12x = 4(x+2)+20

Expand

12x = 4x+8+20

12x - 4x = 28

8x = 18

x = 28/8

x = 3.5

Hence the value of x is 3.5

2) The standard form of equation in slope intercept form is y = mx+c

m is the slope

c is the y intercept

Get the y-intercept

Substitute m = 8 and (0, 12) into y = mx+c

12 = 8(0)+c

12 = c

c = 12

Get the required equation

Recall that y = mx+c

y = 8x + 12

This gives the required equation

5 0
2 years ago
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