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2 years ago

Which is the coefficient in the expression 7x 14?

Mathematics

2 answers:

brilliants [131]2 years ago

8 0

Answer:

7 is the coefficient in the expression $=7x^{14}$ .

Step-by-step explanation:

Definition of coefficient

A numerical or constant quantity used to multiply a variable .

As given the expression in the question be as follow

$=7x^{14}$

Thus

7 is the coefficient in the expression $=7x^{14}$ .

Therefore 7 is the coefficient in the expression $=7x^{14}$ .

pychu [463]2 years ago

7 0

The coefficient is the number multiplied by the variable (the letter)...so ur coefficient in this problem is 7

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Evaluate if x =3 and y = -2<br><br> x2+2xy−4y

Marysya12 [62]

Answer:

Step-by-step explanation:

With the equation $x^2 + 2xy - 4y$ , we can substitute the values of x = 3 and y = -2 into the equation to find its result.

$(3^2) + (2\cdot3\cdot-2) - (4\cdot-2)\\\\9 + (6\cdot-2) - (-8)\\9 - 12 + 8\\5$

Hope this helped!

8 0

3 years ago

At 2:00 PM a car's speedometer reads 30 mi/h. At 2:20 PM it reads 50 mi/h. Show that at some time between 2:00 and 2:20 the acce

storchak [24]

Answer:

The correct answer will be "60 min/hour".

Step-by-step explanation:

At time 2:00 PM

A car reads = 30 mi/h

At time 2:20 PM

A car reads = 50 mi/h

Now,

At time 2:00 PM

t = 0

At time 2:20 PM

t = $\frac{1}{3}$

$v(0)=30$

$v(\frac{1}{3})=50$

For MVT,

$v'(c)=\frac{v(\frac{1}{3} -v(0))}{(\frac{1}{3} )}$

$=\frac{20}{\frac{1}{3} }$

$=60 \ min/hour$

5 0

3 years ago

How do you do this!?! need to know in 3 hours

Leni [432]

Angle 1 and 3 will be the same 101 and angle 2 and 4 will be the same 79

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3 years ago

Find the sum of the series and show your process for finding each term leading to the final sum.

Crazy boy [7]

ANSWER

$\sum_{k=3}^5( - 2k + 5) = - 9$

EXPLANATION

The given series is

$\sum_{k=3}^5( - 2k + 5)$

This series is finite.

The expanded form is

$\sum_{k=3}^5( - 2k + 5) = ( - 2 \times 3 + 5) + ( - 2 \times 4 + 5) + ( - 2 \times 5 + 5)$

This simplifies to

$\sum_{k=3}^5( - 2k + 5) = ( - 6 + 5) + ( - 8+ 5) + ( - 10+ 5)$

$\sum_{k=3}^5( - 2k + 5) = ( - 1) + ( - 3) + ( - 5)$

$\sum_{k=3}^5( - 2k + 5) = - 9$

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2 years ago

10. When you add the same number to both sides of an inequality, is the inequality still true? Explain how you know your stateme

avanturin [10]

The inequality is still true! If you add a number, say 5 to both sides of the following inequality, does anything change?

3 < 6

3 + 5 < 6 + 5

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3 years ago