3 years ago

What equation does the model represent?

Mathematics

1 answer:

Rasek [7]3 years ago

8 0

It is 63+23=86 you understand

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Explain how you do 140 divided by 7/8 plz

ra1l [238]

$x:y=x\cdot\frac{1}{y}\\\\140=\frac{140}{1}\\\\therefore\\\\140:\frac{7}{8}=\frac{140}{1}\cdot\frac{8}{7}=\frac{20}{1}\cdot\frac{8}{1}=\frac{160}{1}=\boxed{160}$

7 0

3 years ago

The lengths of the sides of a triangle are consecutive integers, and the largest angle is twice the smallest angle. What is the

hjlf

Answer: $cosA = \frac{a+2}{2a}$

Step-by-step explanation:

Given that the lengths of the sides of a triangle are consecutive integers

Since side cannot be negative we can assume that the sides are

a, a+1 and a+2 where a>0

The largest angle is opposite side a+2 and smallest is angle opposite a

Using sine formula and the given information that the largest angle is twice the smallest angle

we get

$\frac{a}{sin A} =\frac{a+2}{sin 2A}$

Cross multiply to get

$\frac{sin 2A}{sin A } =\frac{a+2}{a}$

Since sin 2A = 2sin A cos A

we get

$2cosA = \frac{a+2}{a} \\cosA = \frac{a+2}{2a}$

8 0

3 years ago

Evaluate the expression if x=2 and y=4 4x + 3y 1. 13 2. 15 3. 20 4. 21

zimovet [89]

4(2) + 3(4) =

8 + 12 =

and your final answer is 20

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3 years ago

Which expression is equivalent to O Of

Stolb23 [73]

Step-by-step explanation:

According to BODMAS it is division

7 0

3 years ago

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A weed called the boomstar vine is known for growing at a very fast rate. It can grow up to 0.5 feet per day. How fast in inches

IgorLugansk [536]

It can grow 6in per day, and 0.25 inches per hour.

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4 years ago