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2 years ago

A=20 B=10 C=23 D=29.2

Mathematics

1 answer:

11111nata11111 [884]2 years ago

3 0

It’s 20 inches I think

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Prove that <img src="https://tex.z-dn.net/?f=cos%209x-cos%205x%2Fsin17x-sin3x%3D-sin2x%2Fcos10x" id="TexFormula1" title="cos 9x-

maria [59]

Cos9x - cos5x = -2sin2x.sin7x
sin17x - sin3x = 2sin7x.cos10x
so f(x) = $\frac{-2sin2x.sin7x}{2sin7x.cos10x}$ = $\frac{-sin2x}{cos10x}$

8 0

2 years ago

Juanita runs every third day and swims every fifth day. If Juanita runs and swims today, in how many days will she run and swim

Ber [7]

we know that

The least
common multiple (LCM) of two or more numbers is the least

number, other than zero, that is a multiple of all the numbers.

In this problem, we are looking for the least common multiple of $3$ and $5$

Multiply $3$ by $5$

$LCM=3*5\\ LCM=15$

therefore

On the $15th$ day after today, she will do both on the same day

the answer is

$15 days$

3 0

3 years ago

Read 2 more answers

Please hurry \/\/\/\/\/<br> []

Anastasy [175]

Answer:

They are equal.

Step-by-step explanation:

First, we can simplify the second equation by multiplying 7 times 6 and then 7 times 5 due to the distributive property.

$42+35 = 7(6+5)?\\42+35=(7 * 6)(7 * 5)\\42+35=42+35\\$

Therefore, using the distributive property, they are equal.

7 0

2 years ago

Read 2 more answers

a density graph for all the possible weights between 0 pounds and 100 pounds is in the shape of a rectangle. what is the height

Pavel [41]

Answer:

0.1

Step-by-step explanation:

a p e x

4 0

2 years ago

39. Suppose A is an m n matrix with the property that for all b in Rm the equation Ax D b has at most one solution. Use the defi

Anna [14]

Answer: trivial solution is the only solution to Ax = 0, therefore columns must be linearly independent.

Step-by-step explanation: Recall that the columns of A are linearly independent if and only Ax = 0 had only the trivial solution. Since Ax = b has at most one solution, therefore the only solution to Ax = 0 is the trivial solution and the column vectors must be linearly independent.

5 0

2 years ago