2 years ago

Need help with 56 plz!

Mathematics

1 answer:

Naddika [18.5K]2 years ago

3 0

Answer: No idea, sorry. I'm sure you could look it up tho

Step-by-step explanation:

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Solve for f. 2+1.25f=10-2.75f2+1.25f=10−2.75f

Ne4ueva [31]

We have to solve for f:
2 + 1.25 f = 10 - 2.75 f
1.25 f + 2.75 f = 10 + 2
4 f = 12
f = 12 : 4
f = 3
Answer: f = 3

6 0

3 years ago

Use Gauss's approach to find the following sums (do not use formulas). 1+3+5+7+...999

muminat

$S=1+3+5+\cdots+995+997+999$
$S=999+997+995+\cdots+5+3+1$
$\implies 2S=(1+999)+(3+997)+(5+995)+\cdots+(995+5)+(997+3)+(999+1)$

$2S=\underbrace{1000+1000+\cdots+1000+1000}_{500\text{ times}}$

(We are adding 500 instances of 1000 because that's how many odd numbers there are between 1 and 1000, inclusive.)

$2S=500\times1000=500000$
$\implies S=250000$

4 0

3 years ago

The number of Calories c that are burned by walking depends on t, the number of hours spent walking. If you burn 300 Cal/h, how

Paladinen [302]

300/2.5= 120 Calories

4 0

2 years ago

A ladder is placed 30 inches from a wall. It touches the wall at a height of 50 inches from the ground.

tankabanditka [31]

To find the length of the ladder, you need to do Pythagorean theorem.
50^2 + 30^2 = x^2
2500 + 900 = x^2
x^2 =3400
x= square root of 3400
58.31 OR 10 root34

To find the angle:
tan theta = opposite/adjacent
50/30 = 5/3
theta = tan inverse of 5/3
= 59.04

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3 years ago

Which property of real numbers is shown below? -6(4x + 5) = -24x - 30

Maksim231197 [3]

Distribution property
Hope this help!

5 0

2 years ago

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