All categories

1 year ago

I'm literally about to have state testing in an hour. Should I take caffeine?

Mathematics

1 answer:

Cerrena [4.2K]1 year ago

4 0

Answer:

It depends, really.

Step-by-step explanation:

Caffeine will give you kick for a short time but then can make you sleepy.
Take a glass of water for sure

You might be interested in

Please help me solve this equation: B=3V/h solve for V

laiz [17]

I hope this helps you

3V=B.h

V=B.h/3

7 0

2 years ago

Solve for z. -4z+1 = bz+c

blagie [28]

Answer:

$\large\boxed{z=\dfrac{1-c}{4+b}}$

Step-by-step explanation:

$-4z+1=bz+c\qquad\text{subtract 1 from both sides}\\\\-4z=bz+c-1\qquad\text{subtract}\ bz\ \text{from both sides}\\\\-4z-bz=c-1\qquad\text{change the signs}\\\\4z+bz=1-c\qquad\text{distribute}\\\\(4+b)z=1-c\qquad\text{divide both sides by}\ (4+b)\neq0\\\\z=\dfrac{1-c}{4+b}$

3 0

2 years ago

Find the product: (r+2)(r-5)(r-2)(r+5) Please show all steps. 15 points.

Virty [35]

Hello from MrBillDoesMath!

Answer:

r^4- 29r^2 + 100

Discussion:

Rearrange the terms in the product as follows:

(r+2)(r-2) * (r-5)(r+5) =

(r^2 - 4) * (r^2-25) =

f^4 - (25+4)r^2 + 4*25 =

r^4- 29r^2 + 100

Thank you,

MrB

7 0

2 years ago

Read 2 more answers

Isabel stacked two wooden blocks as shown. What is the total volume of the stacked blocks?

Kobotan [32]

9514 1404 393

Answer:

156 cm³

Step-by-step explanation:

The volume of any prism is the product of the base area and the height of the prism. Here, we can take the "base" to be the front face of the assembly, and its "height" to be the 3 cm distance between the front and back faces.

The front face area is the sum of the triangle area and the rectangle area.

A = 1/2bh + LW

A = (1/2)(10 cm)(4 cm) + (16 cm)(2 cm) = 52 cm²

Then the volume is ...

V = Bh = (52 cm²)(3 cm) = 156 cm³ . . . . total volume of the two blocks

8 0

2 years ago

The revised Daily Value for calcium is 1,300 mg per day. How many servings of this food would you have to eat to get 100% DV for

Ne4ueva [31]

Answer:

Taking into account the values showed for this food (image attached). It is required

Servings.

Step-by-step explanation:

The total calcium (Cat) required is 1300 mg/day.

One serving of this food can have 260 mg.

First step is to suppose one day of calculation. t = 1 day.

Cat = (1300 mg/day)(1 day) = 1300 mg Calcium.

One single serving can have 260 mg Calcium (Cas). So, we need to calculate the amount of servings (N) required to complete 1300 mg.

Cat = Cas*N

N = Cat/Cas = 1300 mg/260mg

N = 5.

Finally amount of servings is five N = 5.

8 0

2 years ago