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3 years ago

What is four times a age decreased by 3 is equal to 3 times the age increased by 7. what is the age

1 answer:

6 0

Call the age a.

4a-3=3a+7

Add 3 to both sides and subtract 3a from both sides to get:

a=10

Therefore, 10 is the age.

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Given that PHT is a right triangle and HY is an altitude, what is the missing justification in the proof that (ph)^2 +(HT)^2=(PT

aliya0001 [1]

Your answer will be c

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2 years ago

How many primes are between 2^31 and 2^32? What is the approximate ratio of primes to

PIT_PIT [208]

Answer:

Step-by-step explanation:183

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2 years ago

(0.04)

alexdok [17]

Answer:

Step-by-step explanation:

3x + 2y = 3(3) + 2(4) = 9 + 8 = 17

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3 years ago

Read 2 more answers

(3j? - h) +3; use h=6, and j = 5

Drupady [299]

Answer:

Step-by-step explanation:

(3j-h)+3

Plug in numbers:

(3(5)-(6))+3

Solve:

(15-6)+3

9+3=12

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3 years ago

What are the values of x in this equation?

NNADVOKAT [17]

Answer:

A. x = 0, x = -3, x = 2, and x = -2

Step-by-step explanation:

$x^{4} +12x=4x^{2} +3x^{3}$

by moving the terms on the left side to the right side

$x^{4} -3x^{3} -4x^{2} +12x = 0$

factor an $x^{3}$ from $x^{4} -3x^{3}$

and factor - 4 $x$ from $-4x^{2} +12x$

the equation becomes :

$x^{3} (x - 3 )-4x (x - 3)$ = 0

take $(x - 3)$ as a common factor the equation becomes :

$(x-3)(x^{3}-4x )$ = 0

thus

$x - 3 = 0$ ⇒ $x = 3$

and

$x^{3} - 4x = 0$ by factoring an x we get :

$x(x^{2}-4 ) =0$ ⇒ $x$ = 0 and $x^{2} - 4 = 0$

$x^{2} - 4 =0$ ⇒ $x = 2$ and $x = -2$

Thus

the values are :

x = 0, x = -3, x = 2, and x = -2

4 0

3 years ago