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3 years ago

i need help asap i will give brainiest t best answer i need help with problem 4 look at the image it has the questions

Mathematics

1 answer:

Karolina [17]3 years ago

5 0

Answer:

412.5

Step-by-step explanation:

first you multiply 275.12 to get 3300 then divide by 8 and your answer will be 412.5 make sure to take the work that i typed so then you will get full grade for showing your work and having the right answer to your problem

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25% equivalent to 1/4%

Effectus [21]

Those are equivalent take 100 times 1/4 it’s the same as dividing 4 :)

3 0

3 years ago

Can I please have help with question 2) a and b

Ulleksa [173]

Answer:

$\frac{10\sqrt{6} }{3}$ and $\frac{11\sqrt{3} }{3}$

Step-by-step explanation:

(a)

A = $\frac{1}{2}$ × 4 $\sqrt{2}$ × $\frac{5}{\sqrt{3} }$

= 2 $\sqrt{2}$ × $\frac{5}{\sqrt{3} }$

= $\frac{10\sqrt{2} }{\sqrt{3} }$ × $\frac{\sqrt{3} }{\sqrt{3} }$ ← rationalise the denominator

= $\frac{10\sqrt{6} }{3}$ units²

(b)

Using Pythagoras' identity in the right triangle

let hypotenuse be h , then

h² = (4 $\sqrt{2}$ )² + ( $\frac{5}{\sqrt{3} }$ )²

= 32 + $\frac{25}{3}$

= $\frac{96}{3}$ + $\frac{25}{3}$

= $\frac{121}{3}$ ( take the square root of both sides )

h = $\sqrt{\frac{121}{3} }$ = $\frac{11}{\sqrt{3} }$ × $\frac{\sqrt{3} }{\sqrt{3} }$ ← rationalise the denominator

h = $\frac{11\sqrt{3} }{3}$

7 0

3 years ago

Someone help quick plzzzz! first gets brainliest

Alex787 [66]

Answer:

1st: One Solution

2nd: Multiple Solutions

3rd: No Solution

4 0

3 years ago

To prepare for a presentation, pete colored 1/2 of the poster and rebecca colored 1/3 of the poster, what fraction still needs t

WARRIOR [948]

Pete= 1/2

rebbeca= 2/3

6 0

4 years ago

Y=3x\4 if y= -6 find the value of x<br>please answer this for me, it's graded

sveticcg [70]

Answer:

x = -8

Step-by-step explanation:

y = 3x/4

Substitute the value of -6 into y.

-6 = 3x/4

Multiply both sides by 4.

-24 = 3x

Divide both sides by 3.

x = -8.

4 0

3 years ago

Read 2 more answers