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Effectus [21]
3 years ago
7

-7(-9) need help again

Mathematics
2 answers:
sdas [7]3 years ago
8 0

Answer:

63

Step-by-step explanation:

-7 * -9 = 63

negative times negative is always positive:)

BaLLatris [955]3 years ago
7 0

Answer:

63

Step-by-step explanation:

A negative times a negative is positive.

7 x 9 = 63.

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Problem 6
Jobisdone [24]
I think it is 290 because you add the three numbers
5 0
3 years ago
Line v passes through point [6.6] and is perpendicular to the graph of y= 3/4x - 11 line w is parallel to line v and passes thro
lbvjy [14]

Given:

The equation of a line is

y=\dfrac{3}{4}x-11

Line v passes through point (6,6) and it is perpendicular to the given line.

Line w passes through point (-6,10) and it is parallel to the line v.

To find:

The equation in slope intercept form of line w.

Solution:

Slope intercept form of a line is

y=mx+b         ...(i)

where, m is slope and b is y-intercept.

We have,

y=\dfrac{3}{4}x-11      ...(ii)

On comparing (i) and (ii), we get

m=\dfrac{3}{4}

So, slope of given line is \dfrac{3}{4}.

Product of slopes of two perpendicular lines is -1.

m_1\times m_2=-1

\dfrac{3}{4}\times m_2=-1

m_2=-\dfrac{4}{3}

Line w is perpendicular to the given line. So, the slope of line w is -\dfrac{4}{3}.

Slopes of parallel line are equal.

Line v is parallel to line w. So, slope of line v is also -\dfrac{4}{3}.

Slope of line v is -\dfrac{4}{3} and it passes thorugh (-6,10). So, the equation of line v is

y-y_1=m(x-x_1)

where, m is slope.

y-10=-\dfrac{4}{3}(x-(-6))

y-10=-\dfrac{4}{3}(x+6)

y-10=-\dfrac{4}{3}x-\dfrac{4}{3}(6)

y-10=-\dfrac{4}{3}x-8

Adding 10 on both sides, we get

y=-\dfrac{4}{3}x-8+10

y=-\dfrac{4}{3}x+2

Therefore the equation of line v is y=-\dfrac{4}{3}x+2.

3 0
3 years ago
What is the common ratio between successive terms in the sequence? 2, –4, 8, –16, 32, –64, ... –2 –6 6 2
Nataly_w [17]

Answer:

-2

Step-by-step explanation:

You multiply each term by -2 to get the next term.

To find this for this sequence, divide the term on the right by the term on the left.

8 / -4 = -2              or          -4 * -2 = 8

-16 / 8 = -2             or         8 * -2 = -16

32 / -16 = -2           or         -16 * -2 = 32

-64 / 32 = -2           or         32 * -2 = -64

4 0
4 years ago
Read 2 more answers
2A5A0A2 is divisible by 99 what is the A digit
oee [108]

Answer:

A=3

Step-by-step explanation:

2353032/99 = 23768

8 0
3 years ago
Robert earns $512.75 less than the salary earned by Noel. John earns three times Robert's salary. If the total salary earned by
MrMuchimi

Answer:

$9426.50

Step-by-step explanation:

let noel's salary = x, robert's salary = y and john's salary = z

y = x - 512.75 ..........(1)

z = 3y = 3(x - 512.75) = 3x - 1538.25 ...............(2)

x + y + z = 47645.25..........................(3)

substitute for y and z

x + (x - 512.75) + (3x - 1538.25) = 47645.25

x + x - 512.75 + 3x - 1538.25 = 47645.25

5x = 47645.75 + 512.75 + 1538.25

5x = 49696.25

divide both sides by 5

x = 9939.25 ..... noel's salary

to get robert's salary substitute x in equation 1

y = 9939.25 - 512.75 = 9426.50

y = $9426.50..... robert's salary

6 0
3 years ago
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