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3 years ago

What is the perimeter of the triangle?

Mathematics

2 answers:

anzhelika [568]3 years ago

5 0

Answer:

what they said

Step-by-step explanation:

marishachu [46]3 years ago

3 0

Answer:

7x^3+7x^2+18

Step-by-step explanation:

11x^2+8+6x^3+10-4x^2+x^3

=6x^3+x^3+11x^2-4x^2+8+10

=6x^3+x^3+7x^2+8+10

=7x^3+7x^2+8+10

=7x^3+7x^2+18

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Which sequence of transformations could be used to map triangle MNO onto M”N”O”?

Bumek [7]

Answer:

Option D

Step-by-step explanation:

I dont really know but i think its D

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3 years ago

Read 2 more answers

Please help me I’m working on a math test and I’m struggling with this problem: The Aon center in Chicago is one of the worlds t

Nina [5.8K]

Answer:

They are 14.2 feet high each

Step-by-step explanation:

1136/80=14.2

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2 years ago

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Consider the following hypothesis test.H0:μ1−μ2=0 Ha:μ1−μ2≠0The following results are for two independent samples taken from the

Julli [10]

Answer:

a) $z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53$

b) $p_v =2*P(z$

c) Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

Step-by-step explanation:

Information given

$\bar X_{1}= 104$ represent the mean for 1

$\bar X_{2}= 106$ represent the mean for 2

$\sigma_{1}= 8.4$ represent the population standard deviation for 1

$\sigma_{2}= 7.6$ represent the population standard deviation for 2

$n_{1}=80$ sample size for the group 1

$n_{2}=70$ sample size for the group 2

z would represent the statistic

Hypothesis to test

We want to check if the two means for this case are equal or not, the system of hypothesis would be:

H0: $\mu_{1}=\mu_{2}$

H1: $\mu_{1} \neq \mu_{2}$

The statistic would be given by:

$z =\frac{\bar X_1-\bar X_2}{\sqrt{\frac{\sigma^2_1^2}{n_1} +\frac{\sigma^2_2^2}{n_2}}}=$ (1)

Part a

Replacing we got:

$z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53$

Part b

The p value would be given by this probability:

$p_v =2*P(z$

Part c

Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

6 0

3 years ago

Slove the following <br>equation without with out transporting I)5y +10=4y-10

Katen [24]

The answer is y= -20

7 0

3 years ago

The perimeter of parallelogram is 72 meters. The width of the parallelogram is 4 meters less than its length . Find the Length a

Marrrta [24]

Let n = length
let n-4 = width since it is 4 meters shorter

2( n+n-4) =72 Two of the length and width added together equal the perimeter
combine like terms
2(2n -4) = 72 Now use the distributive law on the left side of the equation
4n -8 = 72 Now add 8 to both sides

4n -8 +8 = 72 +8
4n = 80 Finally divide each side by 4
n=20
so the length is 20 and the width is 4 less or 16.
Let's see if our answer works.
20 + 16 + 20 +16 =? 72
72 =72 yes, it does. Length = 20 Width = 16

6 0

3 years ago