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andrezito [222]
2 years ago
13

What is the graph of the system y = -2x + 3 and 2x + + 4y = 8?

Mathematics
1 answer:
Maslowich2 years ago
3 0

Answer:what are you solving it by

Step-by-step explanation:

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What is the y-intercept of line MN?<br><br> What is the equation of MN written in standard form?
bagirrra123 [75]

Answer:

y-intercept of the line MN = 2

Standard form of the equation ⇒ x + y = 2

Step-by-step explanation:

Coordinates of the ends of a line MN → M(-3, 5) and N(2, 0)

Slope of a line = \frac{y_2-y_1}{x_2-x_1}

                        = \frac{5-0}{-3-2}

                        = -1

Equation of the line MN passing through (-3, 5) and slope = -1,

y - 5 = (-1)(x + 3)

y - 5 = -x - 3

y = -x + 2

This equation is in the y-intercept form,

y = mx + b

where m = slope of the line

b = y-intercept

Therefore, y-intercept of the line MN = 2

Equation in the standard form,

x + y = 2

8 0
2 years ago
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Dani wants to spend less than $25 on a birthday present for her friend. If she buys a necklace for $9.50, how many pairs of earr
BigorU [14]

Answer:

Step-by-step explanation:

You need to subtract

$25.00

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$9.50

___________

Then, divide your answer by $3.75, if it is a decimal, then round down.

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2 years ago
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A water well is being drilled in the desert where soil is either rock, clay, or sand. Probability of rock P(R) = 0.42, probabili
andrezito [222]

We are asked to solve for:

P (sand | positive)

So, we solve this by:

P (sand | positive) = P (sand)  x P (positive for sand)

P (sand | positive) = 0.26 (0.75)

P (sand | positive) = 0.195

The probability is 0.195 or 19.5%.

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2 years ago
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Given the similarity statement ΔDEF ∼ ΔXYZ, which side corresponds with ED¯¯¯¯¯¯¯¯? Question 2 options: A) EF¯¯¯¯¯¯¯¯ B) ZY¯¯¯¯¯
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Answer:

Option C.

Step-by-step explanation:

The given similarity statement is

\Delta DE F\sim \Delta XYZ

We need to find the side which is corresponds with ED.

According to the given similarity statement the pairs of corresponding sides are:

DE\text{ and }XY\Rightarrow ED\text{ and }YX

EF\text{ and }YZ\Rightarrow FE\text{ and }ZY

DF\text{ and }XZ\Rightarrow FD\text{ and }ZX

Since, YX is corresponds with ED, therefore, the correct option is C.

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Matias stepmother uses 30% off coupon to buy the ingredients for huevos rancheros she spends $28
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The original total of the ingredients was 40 dollars
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