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2 years ago

There are two boxes containing only purple and yellow pens.

Mathematics

1 answer:

UNO [17]2 years ago

6 0

Answer:

I'm not sure what the question is asking here

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Natalka [10]

Answer:

A) SSS

Step-by-step explanation:

We have,

$\frac{AC}{DF}=\frac{10}{15}=\frac{2}{3}\\\frac{AB}{DE}=\frac{12}{18}=\frac{2}{3}\\\frac{BC}{EF}=\frac{8}{12}=\frac{2}{3}\\\text{Thus,}\\\frac{AC}{DF}=\frac{AB}{DE}=\frac{BC}{EF}\\$

Since the sides are in proportion, the two triangles are similar by the SSS test.

6 0

2 years ago

What is the area of this trapezoid?

alukav5142 [94]

Answer:

Step-by-step explanation:

7-1=6 6 times height which is 8 is 48.

5 0

2 years ago

Read 2 more answers

Larry and Zach have both been hired to do odd jobs. Larry will receive $7 for each of the 3 flower beds he weeds and y dollars t

o-na [289]

Answer:

Larry :

$21+$Y >$X

Zach :

$25+$Y>$X

7 0

2 years ago

Find the slope between the given points. Write your answer as a fraction in simplest form.

Helen [10]

Do rise over run to get 5-10 / 2-5 = -5/-3

4 0

2 years ago

Read 2 more answers

An aircraft seam requires 25 rivets. The seam will have to be reworked if any of these rivets is defective. Suppose rivets are d

guapka [62]

Answer:

a) The probability of a defective rivet is $8,886*10^{-3}$

b) The probability of a defective rivet should be $4.206*10^{-3}$

Step-by-step explanation:

b) As the probability of a seam not to be reworked (good seam) means that all 25 rivets are not defective, as each probability is independent from others, we multiply the probability of a rivet not being defective (RND) 25 times:

$P_{\mbox{Good seam}}=( P_{\mbox{RND}} )^{25}$

We look up what is the probability of a rivet not being defective because it's easier to do that and knowing that ( $P_{D}$ is the probability of a rivet being defective):

$P_{\mbox{RND}} +P_{\mbox{D}}=1$

We know that the probability of a seam being good is 80% (the same principle as above, 100%-20%=80%), so we can find the probability of a rivet not being defective:

$\sqrt[25]{P_{\mbox{Good seam}}} =P_{\mbox{RND}}\\\\\sqrt[25]{0.8}= P_{\mbox{RND}}=0.99111$

We can find now the probability of a defective rivet:

$P_{D}=1- P_{\mbox{RND}}\\P_{D}=1-0.99111=8,886*10^{-3}$

b) Now, the probability of a good seam is 0.9 (100%-10%=90%), we proceed the same as the previous point:

$\sqrt[25]{P_{\mbox{Good seam}}} =P_{\mbox{RND}}\\\\\sqrt[25]{0.9}= P_{\mbox{RND}}=0.99579$

$P_{D}=1- P_{\mbox{RND}}\\P_{D}=1-0.99579=4.206*10^{-3}$

5 0

2 years ago