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3 years ago

Solve for x -9 = -7

Mathematics

2 answers:

Svetach [21]3 years ago

7 0

Answer:x=2

Step-by-step explanation:x=-7+9

x=2

Jobisdone [24]3 years ago

4 0

Answer:

x=2

Step-by-step explanation:

i hope this helps and i hope this isn't incorrect

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Salsk061 [2.6K]

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3 years ago

Read 2 more answers

Need to solve 5t-2r=25 for t

postnew [5]

5t = 25+2r
t = (25+2r)/5 or
t = 5 + (2/5)r

7 0

3 years ago

What is the formula for the area A of a trapezoid with parallel sides of length B and D, nonparallel sides of length A and C and

loris [4]

Answer:

$(B) \dfrac12H (B+D)$

Step-by-step explanation:

$\text{Area of a trapezoid }= \dfrac12 ($Sum of the parallel sides) \times $Height\\Parallel Sides = B and D\\Height =H\\Therefore:\\\text{Area of the trapezoid }= \dfrac12 (B+D) H$

The correct option is B.

4 0

3 years ago

The graphs of the equation y = 4x + 1 and y - kx = 10 are perpendicular when k = _______?

Ann [662]

Answer:

$k=-\frac{1}{4}$

Step-by-step explanation:

we have

Line 1

$y=4x+1$

Equation in slope intercept form

The slope is equal to

$m_1=4$

Line 2

$y-kx=10$

$y=kx+10$

Equation in slope intercept form

The slope is equal to

$m_2=k$

we know that

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of the slopes is equal to -1)

$m_1*m_2=-1$

substitute

$(4)(k)=-1$

$k=-\frac{1}{4}$

3 0

3 years ago

Help please!!!!!!!!!

devlian [24]

Answer:

YOU not smartYOU DONT KNOW THIS HA HA NOT HELPING YOU BOT.

Step-by-step explanation:

4 0

3 years ago