3 years ago

Help pleaseeeeeeeeeeeee

Mathematics

1 answer:

Andru [333]3 years ago

8 0

Answer:
5. 1:3
6. Joe
8. 2/3 = 8/12
9. 56/7 = 8/1

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If mn = 16 and m^2 + n^2 = 68 then (m+n)^2 =

Dima020 [189]

Answer:

B. 100

Step-by-step explanation:

(m + n)^2

= m^2 + 2mn + n^2

Rearrange

(m^2 + n^2) + 2mn

Substitute

(68) + 2*16

= 68 + 32

= 100

7 0

3 years ago

There are 84 boys in a freshman class of 146 students. Find the ratio of boys to girls.

fredd [130]

There are 146 - 84 = 62 girls

ratio is 84:62

simplifies to 42:31

5 0

3 years ago

Eli wants to combine 0.5 gallons of a 10% acid solution with a 35% solution to make a 15% acetic acid solution. He needs to dete

algol13

Answer:

Here you go :)

Step-by-step explanation:

8 0

3 years ago

What is the expression l x w represent

zzz [600]

Im pretty sure it is length times width :)

4 0

3 years ago

Help me please ( on the image )

Mrac [35]

Answer:

$\frac{\pi}{3}$ radians

Step-by-step explanation:

Number of hours on a clock = 12

Since, measure of a circle at the center = 360°

Measure of central angle formed by the arc between each number (representing hours) = $\frac{360}{12}$

= 30°

Central angle formed by the arc intercepted by the hands of the clock at 8:00 = 4 × 30°

= 120°

Therefore, angle measure in radians = $\frac{\pi }{360}\times (120^0)$

= $\frac{\pi }{3}$

Angle formed by the hands of the clock at 8:00 = $\frac{\pi}{3}$ radians

6 0

2 years ago