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vova2212 [387]
3 years ago
15

Question 1 options:

Mathematics
2 answers:
Mars2501 [29]3 years ago
4 0
A=1 b=1 c=- 4 correct answer
Vikki [24]3 years ago
4 0

your answer will be a=1 b=1 c= -4

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For each shape, write an algebraic expression for its perimeter - part A and B
nikitadnepr [17]

Answer:

a)  p + q + r

b)  2(a + b)

Step-by-step explanation:

The perimeter of a two-dimensional shape is the <u>distance</u> all the way around the outside.

An algebraic expression contains one or more numbers, variables, and arithmetic operations.

A variable is a symbol (usually a letter) that represents an unknown numerical value in an equation or expression.

<u>Question (a)</u>

The length of each side of the triangle is labeled p, q and r.  Therefore, the perimeter is the sum of the sides:

Perimeter = p + q + r

So the algebraic expression for the perimeter of the triangle is:

p + q + r

<u>Question (b)</u>

Not all of the sides of the shape have been labeled.  

However, note that the horizontal length labeled "a" is equal to the sum of "c" and the horizontal length with no label.

Similarly, note that the vertical length labeled "b" is equal to the sum of "d" and the vertical length with no label.

Therefore, the perimeter is twice the sum of a and b:

Perimeter = 2(a + b)

So the algebraic expression for the perimeter of the shape is:

2(a + b)

5 0
2 years ago
In a class room 3/10 of the students are wearing blue shirts and 3/5 are wearing white shirts there are 20 students In The class
shtirl [24]

Total number of students in the class = 36

Number of students wearing blue shirts = (1/6) * 36

                                                                = 36/6

                                                                = 6

Number of students wearing white shirts = (2/3) * 36

                                                                 = 2 * 12

                                                                 = 24

Then

Number of students not wearing blue or white shirts in the class = 36 - (6 + 24)

                                                                                                       = 36 - 30

                                                                                                       = 6

So 6 students in the class are wearing a shirt other than a blue or a white shirt. I hope the procedure is clear enough for you to understand.

5 0
3 years ago
Consider the probability distribution of a random variable x. Is the expected value of the distribution necessarily one of the p
pav-90 [236]

Answer:

yes . The Expected value must always be one of its possible values of x

Step-by-step explanation:

<u>For example</u> :-

Download docx
8 0
3 years ago
Write the equation of a line perpendicular to y=-2x+1 that passes through the point (2,3)
Cloud [144]

Answer:

y = 1/2x + 2

Step-by-step explanation:

First you have to determine the slope which is the opposite reciprocal of the slope of the line given.

So we take the slope -2 and reciprocate and by flipping the numerator and denominator which makes it -1/2.

Then we have to make it the opposite, like making a negative into a positive or a positive into a negative. So that would make it positive 1/2.

We now have the slope which is 1/2 and not we have to make sure it goes through point (2,3).

To do that, we must adjust the y-intercept until it goes through that point. We result in getting the y-intercept of 2.

The answer is y = 1/2x + 2

3 0
3 years ago
Read 2 more answers
3x² - 6x - 24 = 0<br> 0 4,-2<br> O 7.58,-1.58<br> O 2.65, 3<br> 0-30, 36
zzz [600]

Answer:

The answer is (4,-2)

Step-by-step explanation:

i had the same question on my finals and i got it correct!! u welcomee

5 0
4 years ago
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