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iogann1982 [59]

3 years ago

9

2/3 + -4/5. Show your work!

1 answer:

e-lub [12.9K]3 years ago

3 0

Cross multiplication 2 x 5 = 10 3 x -4 = 12 put that on top as 10 - 12 then do the bottom 3 x 5 = 15 then 10 -12 = -2 Rewrite the fraction it should be -2/15 sorry if I’m wrong :(

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FIND THE EXACT AREA PLEASE HELP ILL GIVE BRAINLIESTTTT

wolverine [178]

Check the picture below.

$\textit{area of a circular ring}\\\\ A=\pi (R^2-r^2)~~ \begin{cases} r=\stackrel{smaller}{radius}\\ R=\stackrel{larger}{radius}\\[-0.5em] \hrulefill\\ r=2\\ R=3 \end{cases}\implies \begin{array}{llll} A=\pi (3^2-2^2)\implies A=5\pi \\\\\\ A\approx 15.71 \end{array}$

5 0

2 years ago

Twice the quantity b plus 9

mojhsa [17]

Answer:

2b+9

Step-by-step explanation:

Twice the quantity b is 2*b = 2b

...and then you add 9 which is:

2b+9

5 0

3 years ago

Pls help ASAP will mark Brainlyest!!

Alika [10]

Answer:

312cm2

Step-by-step explanation:

Area of the triangles:

A =1/2bh

A=1/2(10*12) = 1/2*120=60.

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3 0

2 years ago

Read 2 more answers

-7 over -10 simplified

OLga [1]

The negatives cancel to form a positive. The answer is $\frac{7}{10}$

8 0

3 years ago

what os the measure of the angle formed by the minute hand and the hour hand of a clock when the clock ahows 4:00

N76 [4]

Dont know what to say but if u really need an answer i would say 1\4

4 0

3 years ago