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3 years ago

Which ordered pair is a solution to the system of equations? (2x - y=-2 (5x – 2y = 7

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

4 0

Answer:

Step-by-step explanation:

the answer to everything is 21

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Which is an equivalent expression for 4(x + 7) – 9

Diano4ka-milaya [45]

Answer:

4x + 19 is an equivalent expression

Step-by-step explanation:

4x + 28 - 9

so therefore

4x + 19

8 0

3 years ago

One endpoint of a line segment is (-6,4) the midpoint(-2,7) (What are the coordinates of the other endpoint? PLEASE HELP !!

mina [271]

A.) (2, 10), add -6 to -2 to give you 4 units. Then add 4 to the midpoint(-2, and 7), and you end up with 2 and 3. Then just add 3 to seven and you have the coordinates of (2, 10), hope this helps!

3 0

3 years ago

a bag contains 5 red skittles, 3 purple skittles, and 2 orange skittles.A skittle is removed and not replaced, then another skit

dybincka [34]

The probability of two independant events $P_a$ and $P_b$ can be found by multiplying the individual probabilities like so:
$P_t=P_{a}*P_b$

For each individual probability we can find the answer via a simplfied representation:
$P_x = \frac{wanted}{total}$

For the first skittle (red) we have:
$P_{red} = \frac{red}{total}=\frac{5}{10}=0.5$

For the second skittle (orange) we have:
$P_{orange} = \frac{2}{9} = 0.2222...$
**(Notice that the total is now NINE since we didn't put the first red one back in the bag.)

So:
$P_{total} = P_{red} \times P_{orange}$
$P_{total} = \frac{5}{10} \times \frac{2}{9}$
$P_{total} = \frac{10}{90}=\frac{1}{9} \approx 0.1111 \approx 11.11\%$

7 0

3 years ago

A manufacturer says that the diagonal measurement of a laptop computer is 16 inches. Find the relative error of this measurement

RoseWind [281]

Answer:

As this is incomplete, it lacks the value of actual error.

Here, we do not know the actual value. so let's assume it is 1 inch

Relative Error = 6.25 % ≈ 6.3% = D

Step-by-step explanation:

As this is incomplete, it lacks the value of actual error.

We are asked to calculate the relative of the measurement.

Relative error formula = Actual error/Measurement x 100

Here, we do not know the actual value. so let's assume it is 1 inch

Actual value = 1 inch

Measurement = 16 inch

Relative Error = 1/16 x 100

Relative Error = 6.25 % ≈ 6.3% = D

D. 6.3%

4 0

3 years ago

75=(14y+5)<br> Please help me i cant figure this out

zalisa [80]

75=14y+5

or, -14y=5-75

or, -14y = -70

or, y = -70/-14 = 5

The answer is 5.

6 0

3 years ago

Read 2 more answers