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dlinn [17]
3 years ago
8

Please help !!!!! I need help on this problem please :(

Mathematics
1 answer:
mariarad [96]3 years ago
6 0

Answer:

2/3

Step-by-step explanation:

1. (4/9)^1/2

2. 4/9 + 2/9 = 6/9

3. simplify it gives you 2/3

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there are 325 students each class is limited to at most 30 students. how many classes need to be offered?
podryga [215]

11 as the 25 need a class for it u can't leave 25 people 325÷30

3 0
3 years ago
The volume of a right square pyramid is 80 cubic feet. If the sides of the base are doubled, but the height remains the same, wh
maksim [4K]

Answer:

  320 cubic feet

Step-by-step explanation:

The volume is proportional to the product of the area of the base and the height of the pyramid. When the dimensions of the base are doubled, the area is multiplied by 2² = 4, hence the volume of the pyramid will be multiplied by 4.

  4 × (80 ft³) = 320 ft³

The new volume of the pyramid is 320 cubic feet.

7 0
3 years ago
The line x = k intersects the graph of the parabola x = -2y^2 - 3y + 5 at exactly one point. What is k? Thank you! :)
bearhunter [10]

Answer:

49/8 is the value of k

Step-by-step explanation:

We have the system

x = -2y^2 - 3y + 5

x=k

We want to find k such that the system intersects once.

If we substitute the second into the first giving us k=-2y^2-3y+5 we should see we have a quadratic equation in terms of variable y.

This equation has one solution when it's discriminant is 0.

Let's first rewrite the equation in standard form.

Subtracting k on both sides gives

0=-2y^2-3y+5-k

The discriminant can be found by evaluating

b^2-4ac.

Upon comparing 0=-2y^2-3y+5-k to 0=ax^2+bx+c, we see that

a=-2, b=-3, and c=5-k.

So we want to solve the following equation for k:

(-3)^2-4(-2)(5-k)=0

9+8(5-k)=0

Distribute:

9+40-8k=0

49-8k=0

Add 8k on both sides:

49=8k

Divide both sides by 8"

49/8=k

6 0
3 years ago
Which graph represents -x+ 8y > - 24
scoray [572]

Answer:

Step-by-step explanation:

5 0
3 years ago
Phân tích thành nhân tử <br> 3+√5 +3√5 +5
Lyrx [107]

Step-by-step explanation:

3+√5+3√5+5

=6√5+5

=6√10

3 0
3 years ago
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