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VLD [36.1K]
2 years ago
11

When Marla rounded 19.95 to the nearest tenth shi found the number changed to 20 is this correct explain

Mathematics
1 answer:
valentinak56 [21]2 years ago
7 0
Yes this is correct..the rule is: to round up if the number is over 50, round down if the answer is below fifty, like 44...
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A sample of 4 different calculators is randomly selected from a group containing 19 that are defective and 36 that have no defec
Liono4ka [1.6K]
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6 0
3 years ago
Please help! This stuff confuses me! Will BA
Scorpion4ik [409]
So, this is kinda similar to the other I helped you with:

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6 0
2 years ago
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Help y&lt;-1/3x+1 y≤2x-3​
patriot [66]

Answer:

-(1/3)x+1>y

2x-3≥y

If x<12/7 then 2x-3≥y

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3 0
3 years ago
M is the midpoint of A and B. Find the A (Leave your answer with no spaces and use brackets and commas, use M and B as examples.
Licemer1 [7]

Answer:

<h2>A = (1,-5)</h2>

Step-by-step explanation:

Let the midpoint of the two points A (x₁, y₁) and B(-5, 5) be M(2, 0)

Using the formula for calculating the midpoints of two coordinates

(X₁, Y₁) = (\frac{{x_1}+x_2}{2}, \frac{{y_1}+y_2}{2} )

X_1 = \frac{{x_1}+x_2}{2}\\Y_1 =\frac{{y_1}+y_2}{2}

Given if (X₁, Y₁) is the midpoint, then X₁ = 2, Y₁ = 0

x₂ = -5 and y₂ = 5

Substituting this given values into the equation above to get the unknown coordinate;

X_1 = \frac{{x_1}+x_2}{2}\\-2 =  \frac{{x_1}-5\\}{2}\\-4 = x_1-5\\x_1=-4+5\\x_1 =1

Similarly;

Y_1 = \frac{{y_1}+y_2}{2}\\0 =  \frac{{y_1}+5\\}{2}\\0 = y_1+5\\y_1=0-5\\y_1 =-5

The coordinate of A = (1,-5)

5 0
3 years ago
Can somebody plz help answer these questions correclty (only if u remmeber how to do these) thanks sm!
lorasvet [3.4K]

Answer:

a= 126 degrees

b= 54 degrees

r= 54 degrees

s= 126 degrees

Step-by-step explanation:

8 0
3 years ago
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