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2 years ago

What is the value of x in the equation –7 = 3x – 15 – 7x?

Mathematics

1 answer:

zmey [24]2 years ago

4 0

Answer:

Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.

Step-by-step explanation:

You might be interested in

Factor the following quadratic function f(x)=X^2-25

riadik2000 [5.3K]

Answer: (x+5)(x-5)

Step-by-step explanation:

f(x)=X²-25 = (x+5)(x-5)

8 0

3 years ago

Determine if the lines r1(t) = <3, 0, 2> + t <1, 2, −2> and r2(s) = <0, 1, −1> + s <4, 1, 1> intersect,

Temka [501]

Answer:

Yes lines are intersecting, point of intersection is <4,2,0>.

Step-by-step explanation:

Given parametric equations of line are:

$r_{1}(t) = + t \\ r_{1}(t) = \\ r_{1}(t) = ---(1)$

$r_{2}(s) = + s \\ r_{2}(s) = \\ r_{2}(s) = ---(2)\\$

If lines are intersecting then parametric coordinates of (1) are equal to (2)

$3+t=4s---(A)\\2t=1+s---(B)\\2-2t=s-1---(C)\\$

Considering A and B to find values of t and s

From A

t=4s-3---(D)

Putting in (B)

2(4s-3)=1+s

8s-6=1+s

7s=7

s=1

Then

t=4-3

t=1

If lines are intersecting then these values of s and t must satisfy (C)

2-2(1)=1-1

0=0

This shows lines are intersecting.

At this value of t, (1) becomes

$r_{1}(1) = \\=$

Putting s=1 in (2)

$r_{2}(1)=4, 1+1,-1+1>\\=$

Point of intersection is <4,2,0>.

4 0

3 years ago

Find the area of the composite shape

yaroslaw [1]

Step-by-step explanation:

Area of rectangle

l × b

12 × 6

= 72

area of actual figure

72-2×2

=68ft.

8 0

4 years ago

Based on the following calculator output, determine the inter-quartile range of the dataset.

sergeinik [125]

The whole thing Is confusing

3 0

3 years ago

Please please help me out!!!!!

Sliva [168]

Answer:

The answer to your question is: g(3) = 34

Step-by-step explanation:

Function g(x) = 4(x)² - 3(x) + 7

g(3) = 4(3)² - 3(3) + 7 substitution

g(3) = 4(9) - 3(3) + 7 simplify

g(3) = 36 - 9 + 7

g(3) = 36 - 2

g(3) = 34

7 0

3 years ago