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3 years ago

Combine the like terms to create an equivalent expression 4z- (-3z)

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

4 0

Answer:

Step-by-step explanation:

subtracting a negative is like adding

$4z - (-3z)\\4z+3z\\7z$

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Determine which ordered pair is a solution of Y equals 8X

Alchen [17]

The line y = 8x passes through the origin, which is the point (0, 0).

We say the ordered pair (0, 0) lies on the graph y = 8x.

5 0

3 years ago

Read 2 more answers

One of the roots of the quadratic equation dx^2+cx+p=0 is twice the other, find the relationship between d, c and p

scZoUnD [109]

Answer:

$c^2 = 9dp$

Step-by-step explanation:

Given

$dx^2 + cx + p = 0$

Let the roots be $\alpha$ and $\beta$

So:

$\alpha = 2\beta$

Required

Determine the relationship between d, c and p

$dx^2 + cx + p = 0$

Divide through by d

$\frac{dx^2}{d} + \frac{cx}{d} + \frac{p}{d} = 0$

$x^2 + \frac{c}{d}x + \frac{p}{d} = 0$

A quadratic equation has the form:

$x^2 - (\alpha + \beta)x + \alpha \beta = 0$

So:

$x^2 - (2\beta+ \beta)x + \beta*\beta = 0$

$x^2 - (3\beta)x + \beta^2 = 0$

So, we have:

$\frac{c}{d} = -3\beta$ -- (1)

and

$\frac{p}{d} = \beta^2$ -- (2)

Make $\beta$ the subject in (1)

$\frac{c}{d} = -3\beta$

$\beta = -\frac{c}{3d}$

Substitute $\beta = -\frac{c}{3d}$ in (2)

$\frac{p}{d} = (-\frac{c}{3d})^2$

$\frac{p}{d} = \frac{c^2}{9d^2}$

Multiply both sides by d

$d * \frac{p}{d} = \frac{c^2}{9d^2}*d$

$p = \frac{c^2}{9d}$

Cross Multiply

$9dp = c^2$

$c^2 = 9dp$

Hence, the relationship between d, c and p is: $c^2 = 9dp$

8 0

3 years ago

Carole purchased 7/8 of a pound of chocolate chips to make cookies. On the way home from school she got hungry and ate 1/4 of th

AURORKA [14]

Answer is below..................

4 0

3 years ago

Help please I'm trying to get the answer for 3 3/5 divided by 1/6

3241004551 [841]

Answer:

21 3/5

Step-by-step explanation:

5 0

3 years ago

Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making

Montano1993 [528]

Answer:

-73

Step-by-step explanation:

if f is 73

and they made f negative, they just made 73 negative too.

i don't know if there is more in that expression

all i can see is

-f=___

7 0

2 years ago