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artcher [175]
4 years ago
11

Evaluate Y - R for R= -2 and Y= -7

Mathematics
1 answer:
Semmy [17]4 years ago
8 0

Answer:

5

Step-by-step explanation:

-2 - (-7)

you have to do the opposite of the sign and switch the last number from neg to pos

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Which is greater? 2 hours 15 minutes or 140 minutes
VMariaS [17]

140 minutes because 2 hours and 15 minutes equals 135.

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4 years ago
A square has sides of length 8.4 . Work out the length of a diagnol of the square . Give your answer correct to 3 significant fi
sweet [91]

Answer:

The length of the diagonal is 11.879 units

Step-by-step explanation:

On any rectangle or square, any 2 adjacent sides and the diagonal that connects them makes a right triangle. The diagonal is the hypotenuse of that right triangle, and you can find it using the pythagorean theorem:

a^2+b^2=c^2

where a and b are the sides, and c is the diagonal.

\rightarrow8.4^2+8.4^2=c^2\\\rightarrow70.56+70.56=c^2\\\rightarrow c^2=141.12\\\rightarrow c\approx11.879

3 0
3 years ago
The area of a parallelogram in which b = (3x + 5) ft and h = (7x - 1) ft
fgiga [73]
The area of a parallelogram is equal to the base multiplied by the height. So in this instance it would be (3x+5)*(7x-1). Foil out the binomials. 21x^2+35x-3x-5 Combine like terms. 21x^2+32x-5
The area is 21x^2+32x-5
6 0
4 years ago
Change the statement from standard form to slope-intercept form. Identify the slope and y-intercept.
Levart [38]

Answer: 2 is the y intercept

Step-by-step explanation:

Slope is rise over run and in this problem our y intercept is 2 because it is defined as the y. Negate your 9 and put it over the y intercept to make into a fraction to represent slope. This makes it y = mx + b form now.

y = - 9/2x + 2

6 0
3 years ago
DUE TODAY PLEASE HELP​
Amiraneli [1.4K]

Answer: 6. 113.398  7.  354.882  8. 4.82803

HOPE THIS HELPS!

Step-by-step explanation:

7 0
4 years ago
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