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3 years ago

How to solve for j -10=║j-7║

Mathematics

1 answer:

Aleksandr [31]3 years ago

6 0

Answer:

No solutions.

Step-by-step explanation:

-10 = 7

No solutions

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Solve this problem pls

lina2011 [118]

Answer:

1) 200.

Step-by-step explanation:

Men = 1/³

Women = ⅔

50 men, 100 women

2:1 women to men.

there are 200 people in total.

5 0

2 years ago

Read 2 more answers

If the following data were linearized using logarithms, what would be the equation of the regression line? Round the slope and y

Elis [28]

Answer:

log y = 0.576x + 0.139

Step-by-step explanation:

Given data:

x | 2 | 3 | 4 | 5 | 6
y | 21 | 69 | 261 | 1029 | 4101

Logarithms of y-values:

log 21 = 1.322
log 69 = 1.839
log 261 = 2.417
log 1029 = 3.012
log 4101 = 3.613

The ordered pairs:

(2, 1.322), (3, 1.839), (4, 2.417), (5,3.012), (6, 3.613)

Using an online calculator found the equation of the regression line:

y = 0.576x + 0.139

In our case it is:

log y = 0.576x + 0.139

7 0

3 years ago

jon used a gift card to pay for an $18 shirt.The remaining balance on the card is $28.write and solve an equation that represent

denis-greek [22]

Take note that they spent $18 afterwards having $28 on the card so they're spending money off the card so...

x-18=28

would be the equation for this and to solve do the following.

First add 18 to both sides making the equation.

x=46

7 0

3 years ago

Read 2 more answers

Using the laws of logic to prove tautologies.Use the laws of propositional logic to prove that each statement is a tautology.a.

Anika [276]

Answer: The proofs are given below.

Step-by-step explanation: We are given to prove that the following statements are tautologies using truth table :

(a) ¬r ∨ (¬r → p) b. ¬(p → q) → ¬q

We know that a statement is a TAUTOLOGY is its value is always TRUE.

(a) The truth table is as follows :

r p ¬r ¬r→p ¬r ∨ (¬r → p)

T T F T T

T F F T T

F T T T T

F F T F T

So, the statement (a) is a tautology.

(b) The truth table is as follows :

p q ¬q p→q ¬(p→q) ¬(p→q)→q

T T F T F T

T F T F T T

F T F T F T

F F T T F T

So, the statement (B) is a tautology.

Hence proved.

6 0

3 years ago

Find an equation equivalent to r = 10 sinθ in rectangular coordinates

Flura [38]

Answer:

$x^{2} + y^{2} - 10\cdot y = 0$

Step-by-step explanation:

The following expressions are used to transform from polar into rectangular form:

$r = \sqrt{x^{2}+y^{2}}$

$\sin \theta = \frac{y}{\sqrt{x^{2}+y^{2}}}$

Now, the variables are substituted and equation is finally simplified:

$\sqrt{x^{2}+y^{2}} = 10\cdot \frac{y}{\sqrt{x^{2}+y^{2}} }$

$x^{2}+y^{2} = 10\cdot y$

The equivalent equation in rectangular coordinates is:

$x^{2} + y^{2} - 10\cdot y = 0$

8 0

3 years ago