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3 years ago

Need help with both plz help me it is turn in by 12:10

Mathematics

2 answers:

Bumek [7]3 years ago

7 0

The first question is the 64 trucks and 80 cars. The second is the ratio 3:5

NNADVOKAT [17]3 years ago

5 0

Answer:

The first question is the 64 trucks and 80 cars. The second is the ratio 3:5

Step-by-step explanation:

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How do you do this step by step -7(-3n+3)=-21+21n

xxMikexx [17]

Answer:

ytyu

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

FIVE STAR®

Irina18 [472]

Answer:

300 -- venue cost
24 -- cost for each couple
x -- the number of couples
24x the cost associated with all couple
300+24x -- the total cost for the dance

Step-by-step explanation:

Given the scenario that cost is $300 for the venue and $24 for each couple attending a dance at that venue, you want to know the meaning of the variables and terms in 300 +24x.

<h3>Comparison</h3>

You can compare the terms, coefficients, and variables in the given expression with the parts of the problem statement.

300 is a constant term that corresponds to "$300 for a venue rental'
24 is a coefficient that corresponds to "$24 for each couple"
x is a variable representing the number of "couple that attends"
24x is a term representing the cost associated with "$24 for each couple that attends"

That is, the cost associated with the number of people attending is $24 times the number of couples: 24x. The expression 300+24x is the total of the fixed venue cost and the per-couple costs

5 0

1 year ago

Where in everyday life might you need to find the percent of a whole? Give three examples.

statuscvo [17]

Here are about 6 examples for ya honey, You have PIE, also ya have, MONEY! Because math helps you save MONEY, Ya also have, a GROCERY STORE that can help because you can count the vegetables in the store to see.

6 0

3 years ago

Read 2 more answers

Help please! <br> find the area of the isoceles triangle

DiKsa [7]

Answer:

This is a long answer. I got 82.5

Step-by-step explanation:

Area of isoceles triangle is

$\frac{1}{2} (b)(h)$

where b is the base and h is height.

Let draw a altuide going through Point D that split side FE into 2 equal lines. Let call that point that is equidistant from FE, H.

Since it is a altitude,it forms a right angle. So angle H=90.

Angle H is equidistant from F and E so

FH=11

EH=11.

The height is still unknown.

We can use pythagorean theorem to find side h but we need to know the slanted side or side DF to use the theorem.

Using triangle DFH, we know that angle H is 90 and angle F is 34. So using triangle interior rule,Angle D equal 56.

We know side FH=11
We know Angle D equal 56
We are trying to find side DF
We know angle H equal 90

We can use law of sines to find side DF

$\frac{fh}{ \sin(d) } = \frac{df}{ \sin(h) }$

Plug in the numbers

$\frac{11}{ \sin(56) } = \frac{df}{ \sin(90) }$

sin of 90 =1 so

$\frac{11}{ \sin(56) } = df$

Side df is about 13.3 inches.

Since we know our slanted side is 13.3 we can set up our pythagorean theorem equation,

$(fh) {}^{2} + (dh) {}^{2} = df {}^{2}$

$(11) {}^{2} +( dh) {}^{2} = (13.3) {}^{2}$

$121 + dh {}^{2} = 176.89$

$(dh) {}^{2} = 55.89$

$\sqrt{55.89} = 7.5$

is approximately 7.5 so dh=7.5 approximately.

Now using base times height times 1/2 multiply them out

$\frac{1}{2} (22)(7.5)$

$82.5$

8 0

3 years ago

Assume that random guesses are made for seven multiple choice questions on an SAT test, so that there are nequals7 trials, eac

Ket [755]

Answer:

$P(X < 4)=0.1335+0.3115+0.3115+0.1730=0.9295$

Step-by-step explanation:

Question assumed: Find the probability that the number x of correct answers is fewer than 4.

1) Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

2) Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=7, p=0.25)$