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timofeeve [1]
3 years ago
7

5. Add or subtract

Mathematics
1 answer:
Tresset [83]3 years ago
6 0
5. (M^2 - m +3) + (m +1) =
 (m^2) (- m + m) + (3 + 1) =
 m^2 + 4
Either your options are wrong or you might have put the wrong sign somewhere?

6. <span>(5x^2 + x - 3) - (-2x^3 + 4) =
 (- 2x^3) + (5x^2) + (x) - (3 +4) =
 -2x^3 + 5x^2 + x + 1
Answer: B)</span>
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Can I get help on this please
Alekssandra [29.7K]
Hello!

I've attached the diagram.

For this problem, since you have a right triangle, you can use the Pythagorean Theorem to fine the length of the ladder (the hypotenuse of the triangle).

Pythagorean Theorem (where c is the hypotenuse):
a² + b² = c²

The triangle's leg lengths are 8 and 6; substitute into the theorem:
8² + 6² = c²

Simplify:
64 + 36 = c²
100 = c²
10 = c

Answer:
The length of the ladder is 10 m.

4 0
3 years ago
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The area of the rectangle window is4779 cm to the second power if the length of the window is 81 cm what is the width
TiliK225 [7]

9514 1404 393

Answer:

  59 cm

Step-by-step explanation:

The area is the product of length and width. Using the given numbers, we have ...

  A = LW

  4779 cm² = (81 cm)W

  W = (4779 cm²)/(81 cm) = 59 cm

The width of the window is 59 cm.

8 0
3 years ago
200 points if you help me? 24 hours is equal to one ____ of the Earth
Trava [24]

Answer:

rotation

Step-by-step explanation:

because the earth rotates

8 0
3 years ago
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Can you please help with this math?&gt;&gt;
goblinko [34]

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3 years ago
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Question 11
Anarel [89]

Answer:

the trainee calculated the incorrect amount

It should be 0.5 mL

Step-by-step explanation:

The physician orders penicillin 500,000 units for a patient while the concentration of the drug you have is 1,000,000 units/ 1mL. It's clear that 1mL drug is too much for the patient since 1,000,000 units are higher than 500,000 units.  

The amount of penicillin in 1.5 mL will be definitely higher than 1,000,000 units, so it must be a lot higher than the physician's orders. We can roughly guess that the trainee draws an incorrect amount.

To calculate the exact volume you need, you have to divide the amount of the drug you need with the concentration of the drug. The calculation will be:

the volume needed = amount of the drug you need/ concentration of the drug

volume needed =  500,000 units / (1,000,000 units/ 1mL)= 1/2 mL = 0.5 mL

8 0
3 years ago
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