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3 years ago

Which triangle would be congruent by using a reflection over the x-axis?

Mathematics

2 answers:

amid [387]3 years ago

5 0

The answer is C because you just turn it upside down

sladkih [1.3K]3 years ago

3 0

it is c. the horizontal line is the X axis

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What is the equation of a circle with the center at (-4,12) and a radius of square root of 3

Wittaler [7]

Answer:

(x + 4)² + (y - 12)² = 3

Step-by-step explanation:

form of circle

(x - h)² + (y - k²) = r²

(h, k) is the center = (-4, 12

r is the radius =√3

------------------------

plug in the givens

(x + 4)² + (y - 12)² = 3

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3 years ago

The net of a rectangular pyramid and its dimensions are shown in the diagram. What is the total surface area of the rectangular

postnew [5]

Answer:

A 37

Step-by-step explanation:

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3 years ago

22/25 is what percentage of that number

Romashka [77]

Answer:

As a percent, that is 88%.

Step-by-step explanation:

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3 years ago

Read 2 more answers

Tea is made up of milk and tea ratio of 2 to 9. how much tea can be made using 1 litre of milk

Ilya [14]

You can solve it like this

2=milk (a); 1=milk (b)
9=tea (a); x= tea (b)

2:9=1:x (then multiply means and the extremes)
(means are 9 and 1; extremes are 2 and x)

9=2x
9/2= x
4.5 or 4 1/2=x

Therefore, using 1 litre of milk, we can have 4 1/2 tea.

3 0

3 years ago

With food prices becoming a great issue in the world; wheat yields are even more important. Some of the highest yielding dry lan

Rzqust [24]

Answer:

Option E) 61.6

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100 bushels per acre

Standard Deviation, σ = 30 bushels per acre

We assume that the distribution of yield is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(X>x) = 0.90

We have to find the value of x such that the probability is 0.90

P(X > x)

$P( X > x) = P( z > \displaystyle\frac{x - 100}{30})=0.90$

$= 1 -P( z \leq \displaystyle\frac{x - 100}{30})=0.90$

$=P( z \leq \displaystyle\frac{x - 100}{30})=0.10$

Calculation the value from standard normal table, we have,

$P(z$

$\displaystyle\frac{x - 100}{30} = -1.282\\x = 61.55 \approx 61.6$

Hence, the yield of 61.6 bushels per acre or more would save the seed.

7 0

3 years ago