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4 years ago

PLLLZZZZ HELPPP MEE

Mathematics

1 answer:

Amanda [17]4 years ago

3 0

Answer:

construct PQ
construct circles of radius PQ centered at P and Q
label one of the points of intersection R
Construct PR and QR

Step-by-step explanation:

You should actually do this some time. It will help you understand the construction process and help you remember the steps. It may even help you figure out why it works.

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How do you write the following statement as an equation: a number N is 4 less than 8 ??

kiruha [24]

4 less than 8 is a number N

8 - 4 = n
or
n = 8 - 4

6 0

4 years ago

What is 6% of 90? Helpp

Aloiza [94]

Answer:

Step-by-step explanation:

6/100 = x/90

6×90=540

540/100=54

8 0

3 years ago

On a math test, the students are asked to

Luden [163]

Answer:

Alberto is incorrect. Perimeter is 42 units.

Step-by-step explanation:

Given:

The vertices of the triangle are $S(-6.5, -8.5), T(2.5, -8.5),U(2.5, 3.5), \textrm{ and } V(-6.5, 3.5).$

Perimeter of a triangle of length $l$ and width $b$ is given as:

$P=2(l+b)$

Here, $l=ST,b=TU$

Distance between two points $A(x_{1},y_{1})$ and $B(x_{1},y_{2})$ is given as:

$AB=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$

So, the length ST is,

$l=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}\\l=\sqrt{(2.5-(-6.5))^{2}+(-8.5-(-8.5))^{2}}\\l=\sqrt{9^{2}+0}=9$

Width TU is,

$b=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}\\b=\sqrt{(2.5-2.5))^{2}+(3.5-(-8.5))^{2}}\\b=\sqrt{0+12^{2}}=12$

Therefore, the perimeter is given as:

Perimeter = $2(l+b)=2(9+12)=2(21)=42$ units.

Hence, the perimeter written by Alberto is incorrect as perimeter is not 18 units bu 42 units.

7 0

3 years ago

The probability that a randomly chosen sales prospect will make a purchase is 20%. What is the probability (to three decimal pla

Elina [12.6K]

Answer:

1.7%

Step-by-step explanation:

We have to calculate the probability that the salesperson will make four or more sales if six sales calls are made on a given day, that is:

P (x => 4)

Therefore, we must calculate when x = 4, when x = 5, and when x = 6 and add. p = 0.2, n = 6

P (x = r) = nCr * p ^ r * (1 - p) ^ (n-r)

Also, nCr = n! / (r! * (n-r) !, now replacing:

P (x = 4) = 6! / (4! * (6-4)! * 0.20 ^ 4 * 0.80 ^ (6-4)

P (x = 4) = 15 * 0.001024 = 0.01536

P (x = 5) = 6! / (5! * (6-5)! * 0.20 ^ 5 * 0.80 ^ (6-5)

P (x = 5) = 6 * 0.000256 = 0.001536

P (x = 6) = 6! / (6! * (6-6)! * 0.20 ^ 6 * 0.80 ^ (6-6)

P (x = 6) = 1 * 0.000064 = 0.000064

now,

P (x => 4) = P (x = 4) + P (x = 5) + P (x = 6)

P (x => 4) = 0.01536) + 0.001536 + 0.000064

P (x => 4) = 0.01696 = 0.017

It means that the probability is 1.7%

8 0

3 years ago

Is -8 bigger than -10?

ivann1987 [24]

Yes, -8 is 2 greater than -10.

Also on the number line, -8 is two units to the left of -10.

7 0

3 years ago

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