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2 years ago

Help this has to be don today or my grade on it will be a 60

Mathematics

2 answers:

mariarad [96]2 years ago

7 0

Answer:

$\frac{5}{13}$

Step-by-step explanation:

If you have the same denominator, you can just subtract the numerators normally and carry over the denominator.

Ivan2 years ago

6 0

6/13-1/13 =5-13 is the answer

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Three streets intersect to form a right triangle as shown below. The parts of streets that make up the legs of this triangle are

Burka [1]

Answer:

70 yd.

Step-by-step explanation:

The three streets at the intersection form a right triangle.

For a right triangle, the length of the longest side (called hypothenuse) is given by Pythagorean's theorem:

$h=\sqrt{x^2+y^2}$

where

x is the length of the 1st side

y is the length of the 2nd side

h is the length of the hypothenuse

Here we want to find the hypothenuse.

We have:

x = 42 yd (length of the 1st side)

y = 56 yd (length of the 2nd side)

Substituting, we find h:

$h=\sqrt{42^2+56^2}=70 yd$

7 0

3 years ago

Find the area of the shaded figure. Give answer in decimal to the hundredth place.

Firdavs [7]

Answer:

13.5

Step-by-step explanation:

72/(16/3)

6 0

3 years ago

Eight times the sum of 8 and some number is 17. What is the number?

OverLord2011 [107]

Edited answer: The number is: "- 6" .
_______________________________________________

8 (8 + x) = 16 ;

in which "x" represents the number for which to be solved ;

8*8 + 8*x = 16 .

Edit: 64 + 8x = 16 ;

Subtract "64" from each side of the equation:

Edit: 64 + 8x − 64 = 16 − 64 ;

to get: 8x = - 48 ;

Divide EACH SIDE of the equation by "8" ; to isolate "x" on one side of the equation ; and to solve for "x" ;

Edit: 8x / 8 = -48 / 8 ;

Edit: x = - 6 .
______________________________________________
The number is: "- 6" .
______________________________________________
Let us check our answer, by plugging in "-6" for "x" in the original equation:
______________________________________________
8 (8 + x) = 16 ;

→ 8 [8 + (-6) ] =? 16 ?? ;

→ 8 (8 − 6 ) =? 16 ?? ;

→ 8 (2) =? 16 ?? ;

→ 16 = ? 16 ?? Yes!
_________________________________________________

4 0

3 years ago

Read 2 more answers

Multiply the following (-7pq^2r^3) * (-13p^3q^2r)

artcher [175]

Answer:

$91p^{1+3q^{2r}}q^{2r^3}$