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shutvik [7]
1 year ago
9

What does this mean? evaluate the expression for y=54y+10

Mathematics
1 answer:
salantis [7]1 year ago
7 0

We have the expression:

4y+10

And want to evaluate in y=5, this means we have to replace y in the expression for 5 and calculate the value of the expression, so:

\begin{gathered} 4y+10,y=5 \\ 4\cdot5+10 \\ 20+10 \\ 30 \end{gathered}

The expression is 30 when y=5.

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Use one or more exponents to write the expression.<br> Question 2<br> 7 × 7 × 7 × 7
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7^4 or seven to the fourth power because 7 is being multiplied by 7 when you raise it to a power.
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2 years ago
The formulae for kinetic energy is E =-mv2.<br><br> Find the value of E when m= 900 and v=1.3,
RSB [31]

Answer: ΔKE = 760.5 Joules

Step-by-step explanation:

Isnt the formula for ΔKE = 0.5m*v^2???

Im not going to use that formula you gave me, its wrong.

900/2 = 450

1.3^2 = 1.69

450 x 1.69 = 760.5 Jules

This is also the wrong subject btw

8 0
3 years ago
15 = -4p + 7<br><br><br> solving equation
Ratling [72]

Answer:

p = -2

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15 = -4p + 7

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4p + 15 - 15 = 7 - 15

4p = -8

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8 0
3 years ago
Read 2 more answers
joseph needs to run 3 miles during his workout for the soccer team. he begins by running 1/2 half and he takes 3 breaks during p
Bingel [31]

At the end of practice, Joseph will need to run another 1.75 miles or 1 3/4 miles.

To determine this we need to subtract the amounts he already has run during practice from the goal of 3 miles.

3 miles - 1/2 miles - 1/4 miles - 1/4 miles - 1/4 miles = 1.75 miles

3 0
3 years ago
Express the product of 2x squared + 7x - 10 and x + 5 in standard form
masha68 [24]
22x^2+7x-10 = x+5&#10;&#10;2x^2+7x-15&#10;&#10;y2x^2+6x-15


Suggesting that you want this in standard form, in terms of quadratic equations, you would technically follow a process similar if not almost exactly like the 2 - step equation method with the exception of separating the (x)s and the equations to find x and then plug it in and what-not.


With that being said you would subtract 5 in (x+5) from said 5 in the second equation and -10 in the first equation in order to get 2x^2+7x-15, you would continue to do the same for the x by subtracting it from both ends making the 7x a 6x because there is a 1 at the beginning of each x if there is no number that is shown already. Which finally gives you the equation (y= 2x^2+6x-15)
7 0
3 years ago
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