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3 years ago

Help me with my help my work I really need help please it’s very hard for me I beg you no jokes

Mathematics

1 answer:

kondaur [170]3 years ago

6 0

Answer:

Base shape/formulas: 1/2 base x height, base x height, 1/2 base x height, 1/2 base x height

Vol formulas: 1/2 base x height x length, length x width x height, 1/2 base x height x length, 1/2 base x height x length (in that order)

Plug in numbers: [30 (30 - 5) (30 -12) (30 - 13)]^1/2 * 3 if you use Heron's

5 x 7 x 2

I dunno if you need the rest

Step-by-step explanation:

Base of triangular prism is always a triangle and base of rectangular prism is rectangle. I imagine the shape/formula of base refers to the area formula of each base. Have you studied Heron's formula? It might help for 1st problem.

You do know you can look these formulas up online if you don't know them :)

For plug in #, apply numbers given in each image to formulas...

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kondaur [170]

Answer:

72 dollars

Step-by-step explanation:

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3 years ago

F(x) = x2 + 1 What is f(f(x))? O A+ 2x2+1 A+ 2x2+2 O A +2 O A+1

Gennadij [26K]

Answer:

Your answer is x^4 + 2 x^2 +2

Hope that this is helpful. Vote and like it

6 0

3 years ago

How do you write “twice a number less than 3 is 17” as an equation?

ki77a [65]

Answer:

2 x 3 < 17

Step-by-step explanation:

Greater than and/or less than step by step equasion.

4 0

3 years ago

Daily low temperatures in Columbus, OH in January 2014 were approximately normally distributed with a mean of 15.45 and a standa

Alona [7]

Answer: 12.10

Step-by-step explanation:

Given : Mean : $\mu = 15.45$

Standard deviation : $\sigma = 13.70$

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 5 degrees

$z=\dfrac{5-15.45}{13.70}=-0.7627737226\approx-0.76$

For x= 10 degrees

$z=\dfrac{10-15.45}{13.70}=-0.397810218\approx-0.40$

The P-value : $P(-0.76$

$=0.3445783-0.2236273=0.120951\approx0.1210$

In percent , $0.1210\times100=12.10\%$

Hence, the percentage of days had a low temperature between 5 degrees and 10 degrees = 12.10%

5 0

3 years ago

What are the solutions to the quadratic equation (5y +6) 2= 24?

boyakko [2]

Answer:

$y=-2.18,-0.22$

Step-by-step explanation:

We have been given the equation

$(5y+6)^2=24$

Take square root both sides. When ever we take square root, we include plus minus sign

$\sqrt{(5y+6)^2}=\pm\sqrt{24}\\\\5y+6=\pm2\sqrt6$

Now, subtract 6 to both sides of the equation

$5y=-6\pm2\sqrt6$

Divide both sides by 5

$y=\frac{1}{5}(-6\pm2\sqrt6)$

$y=\frac{1}{5}(-6+2\sqrt6),y=\frac{1}{5}(-6-2\sqrt6)$

In decimal we have

$y=-2.18,-0.22$

3 0

3 years ago