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3 years ago

Please help me I will give you the brain thing with extra points, please help me. 5/5

Mathematics

2 answers:

RideAnS [48]3 years ago

7 0

Answer:

I think it's C

Step-by-step explanation:

Nikitich [7]3 years ago

3 0

The answer is x,y -> -x,+y

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Please help!! I've attached a picture of the problem

BARSIC [14]

Answer: BC=8 units

Step-by-step explanation:

So in this figure, this triangle, that is a parallelogram named DFCE , and one of their property three yeti you add learn you learned is that a parallelogram has like rectangle two sides per two that are parallel and have the same measure ( but you can also use the little lines that show who is the same as who ) in this one you can write an equality: CE=FD=4. Then there is the same two lines on the EB segment so EB=4 . Then we can write that BC= BE + EC

BC= 4+4

BC= 8 units

I’m not English so I tried explaining as simple as possible sorry if you didn’t understand :/

3 0

3 years ago

A rectangle has an area of 2020cm².

Nadya [2.5K]

Answer:

Length = 2020 units

Width = 1 unit

Step-by-step explanation:

We know that area of a rectangle = length x width

We also know that perimeter = (2 x Length) + (2 x Width)

the goal is to to find Length and Width such that:

Condition 1: Length x width = 2020

Condition 2: (2 x Length) + (2 x Width)= maximum possible

We are also given that both Length and Width are whole numbers, hence we can start by finding the factors of 2020 into prime factors

Factor 2020: 2 x 2 x 5 x 101

By observation, we can see that the following combinations of the factors make up the required area of 2020:

Case 1: (1) x (2)(2)(5)(101) = 1 x 2020 = 2020

Perimeter = 2(1 + 2020) = 4042

Case 2: (2) x (2)(5)(101) = 2 x 1010 = 2020

Perimeter = 2(2+ 1010) = 2024

Case 3: (2)(2) x (5)(101) = 4 x 505 = 2020

Perimeter = 2(4 + 505) = 1018

Case 4: (2)(2)(5) x (101) = 20 x 101 = 2020

Perimeter = 2(20 + 101) = 242

Case 5: (5) x (2)(2)(101) = 5 x 404 = 2020

Perimeter = 2(5 + 404) = 818

Case 6: (2)(5) x (2)(101) = 10 x 202 = 2020

Perimeter = 2(10 + 202) = 424

From the above, it is clear that case 1 yields the largest perimeter

4 0

4 years ago

King mattress purchases sleep-n-air mattresses from three different distributors. the probability of getting a defective mattres

valina [46]

0.18 / (0.18 + 0.12 + 0.54) =
0.18 / 0.84 =
0.2143 <=

3 0

3 years ago

Is this the answer someone help plz

ivann1987 [24]

You're right.

Since the output has different number of jumps from one number to another.

7 0

3 years ago

Read 2 more answers

Solid fats are more likely to raise blood cholesterol levels than liquid fats. Suppose a nutritionist analyzed the percentage of

quester [9]

Answer:

t = 34.548

Step-by-step explanation:

Here X₁ = Solid values / n

= 26.3 +25.3+26.1+25.6+26.7+25.9/6

=155.9 / 6

=25.984

X₂ = Liquid values/n

= 16.9 +16.6+16.5+17.4+17.4+17.2 / 6

=102/6 = 17

Formula for the sample standard deviation is

$s = \sqrt {Σ(x - mean )^2/n-1}$

we get

s₁ = 0.49967

s₂ = 0.3949

Construction of hypothesis

H₀ :μ₁ = μ₂

H₁ : μ₁ ≠ μ₂

Apply test statistic formula we get the value

$t = X_{1} - X_{2} /\sqrt{S_{1}^2 /n + S_{2}^2 /n }$

putting all these values

t = 25.984 - 17 / √ (o.49967)²/6 + (0.39497)²/6

t = 34.548

5 0

4 years ago