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Ilya [14]
3 years ago
11

Evaluate the expression x+2y when x=2 and y=−2.5.

Mathematics
2 answers:
BARSIC [14]3 years ago
7 0

Answer:

‒3

Step-by-step explanation:

x+2y=2+2(‒2.5)

=2+(‒5)

=2‒5

=‒3

i hope it helps you

kow [346]3 years ago
4 0

Answer: -3

Step-by-step explanation:

If you plug in the numbers, the equation would look like: 2+2(-2.5)

Multiply 2 by -2.5 and you'll get -5 as your product. Add 2 and -5 together to get the sum of -3.

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ANEK [815]

Answer:

spend 8 bucks on cats then left over for the dog

Step-by-step explanation:

3 0
4 years ago
Solvex2<br> - 4x=21 <br> using the zero product property.
Ierofanga [76]

Answer:

The answer is (x + 3) (x - 7) = 0

Step-by-step explanation:

x² - 4x = 21

x² - 4x - 21 = 0

x² - 7x + 3x - 21 = 0

x(x - 7) + 3(x - 7) = 0

(x + 3) (x - 7) = 0

Thus, The answer is (x + 3) (x - 7) = 0

<em><u>-TheUnknownScientist</u></em>

5 0
3 years ago
Find the quotient of the quantity negative 5 times x to the 3rd power plus 20 times x to the 2nd power minus 25 times x all over
Alona [7]
Negative x squared minus 4 x plus 5
8 0
3 years ago
Read 2 more answers
How much principal must be deposited to earn $1000 simple interest in 2 years at a rate of 5%
Murrr4er [49]

Answer:

1100                                                                 brainliest please

Step-by-step explanation:

1000×2×0.05=100

1000+100=110

4 0
3 years ago
Please answer this in two minutes
tigry1 [53]

Answer:

x = 16

Step-by-step explanation:

The figure shown shows an inscribed angle F and central angle E. Both angles intercept the same arc.

Therefore, angle E is twice the measure of angle F, according to the central angle theorem of a circle.

Thus,

m<E = 2 * m<F

(x + 94)° = 2(55)

We can find the value of x with this equation.

x + 94 = 110

Subtract 94 from both sides

x = 110 - 94

x = 16

8 0
3 years ago
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