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Triss [41]
3 years ago
7

Mike used a rectangular prism and two cubes to create a model bench for his class project as shown below.

Mathematics
1 answer:
Assoli18 [71]3 years ago
3 0
Surface area = 2(wl + hl + hw)

top section 2(5*25 + 5*25 + 5*5) = 550

lower part = 2(5*5 + 5*5 + 5*5) = 150

150 + 150 + 550 = 850

 answer is A

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Laura has $30 to spend on food for the week. Which inequality represents this? x < 30 x < 30 x > 30 x > 30
steposvetlana [31]

In the given question Laura has $30 to spend on food for the week.

According to the question we have to set the inequality between total amount and amount spent on food.

Amount spend by Laura on food for the week = $30

Let the amount spent by Laura on food be x

So she has to spend up to $30

So inequality will be x\leqslant 30

So option b is the answer

6 0
3 years ago
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The isotope known as carbon-14 is radioactive and will decay into the stable form nitrogen-14. As long as an organism is alive,
SpyIntel [72]
The half life would be about 3 so making the percentage About 25%
3 0
2 years ago
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A bunch of friends went to the snack shake for lunch. The first family ordered 4 hamburger and 4 orders of fries for 9$. The sec
nexus9112 [7]

Answer:

$1.50 for hamburgers, and $0.75 for fries.


Hope this helps you! Have an amazing day :)                                                                                  

8 0
3 years ago
Find the area of a triangle with vertices (1,5), (1, -2), (3,-2).
igomit [66]
The area is 7 units squared.

3-1 = 2
5--2 = 7
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5 0
3 years ago
if caramel is put onto a sphere-shaped apple such that the surface area increase at a rate of 10 cm2/min, find the rate at which
tresset_1 [31]

Answer:

The diameter will increase at a rate of 1/30π cm/min

Step-by-step explanation:

Here we want to calculate the rate at which the diameter will increase

Mathematically, the area of a sphere is given as;

A = 4πr^2

But r = d/2

so A = 4 * π * d/2 * d/2 = πd^2

dA/d(d) = 2πd

Thus dd/dA = 1/2πd = 1/2 * π * 15 = 1/30π

Given dA/dt = 10

Mathematically;

d(d)/dt = d(d)/dA * dA/dt

dd/dt = 1/30π * 10 = 10/30π = 1/3π cm/min

5 0
3 years ago
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