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3 years ago

Subtract 1/4w + 4 from 1/2w + 3

Mathematics

1 answer:

Aleks04 [339]3 years ago

4 0

I think it should be w+28/4 if thats one of the answer choices.

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What’s the answer to this?

inna [77]

Since the triangle is equilateral, all its angles are equal to 60°

AO is the bisector⇒∠OAD = 30°

AO is the hypotenuse, ∠OAD = 30°⇒

OD=5*2=10m

By the Pythagorean theorem

$10^2=AD^2+5^2\\AD=\sqrt{100-25} \\AD=\sqrt{75}$

$AC=AD+DC=2\sqrt{75}=10\sqrt{3}$

$S=\frac{a^2\sqrt{3} }{4}$

$S=\frac{(10\sqrt{3})^2\sqrt{3} }{4} =\frac{300\sqrt{3} }{4} =75\sqrt{3} m^2$

Answer: A) $S=75\sqrt{3}$ m²

P.S. Hello from Russia and sorry for my bad english :^)

3 0

2 years ago

Combine like terms to create an equivalent expression. -5.8c+4.2-3.1+1.4c

ohaa [14]

Answer: I got

-4.4c+1.1

5 0

3 years ago

HELP ME PLEASEEEEEEEEEEEE

olga nikolaevna [1]

Answer:

Step-by-step explanation:

The first number is always x-coordinate. And amongst all only J and L has positive x-coordinates. With J y-coordinate is also positive so it should be L

5 0

2 years ago

The frequency table shows the scores from rolling a dice. Work out the median

nikitadnepr [17]

Answer:

need a little more information

Step-by-step explanation:

6 0

2 years ago

Fabio has run five eighths of the race. What fraction of the race remains?

Pavel [41]

Answer:

$\frac{3}{8}$

Step-by-step explanation:

<h2>Fractions </h2>

since $\frac{5}{8}$ has been completed

the remaining would be :

$\frac{8}{8} -\frac{5}{8}$

since denominators are the same

= $\frac{8 - 5}{8} \\\\$

= $\frac{3}{8}$

the fraction of the race that is remaining is 3/8

7 0

3 years ago

Read 2 more answers