2 years ago

7th grade math help me plzzzzz

2 answers:

6 0

Sorry either 1 or 2.

3 0

2 maybe i have no idea sorry

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disa [49]

For a right triangle with 60° angle, and hypotenuse h=10√3,
x=h*sin(60)=10√ 3 * √3/2 = 30/2=15
y=h*cos(60)=10√3 * (1/2) = 5√3

3 0

2 years ago

NNADVOKAT [17]

1- A = B = m²-16

2- D = 4x²-3 proof: (8x³-6x)/2x =2x(4x²-3)/2x simplify to get the answer

5 0

2 years ago

const2013 [10]

It is to insure the experiment does not have bias.

5 0

2 years ago

Virty [35]

Greater than. For example if you multiply 2 by 3/5 the answer is 1 1/5 which is greater than 3/5

4 0

2 years ago

Pani-rosa [81]

Given :

Challenge given is to volunteer for about 1 1/2 hours per week .

Autum did at a rate of 6 3/4 hours per week .

To Find :

The comparison ( ratio ) her volunteers rate with the challenge rate .

Solution :

Simplifying challenge rate in in normal fraction , $1\dfrac{1}{2}=\dfrac{2+1}{2}=\dfrac{3}{2}$ .

Also , simplifying her rate , $6\dfrac{3}{4}=\dfrac{(6\times 4)+3}{4}=\dfrac{27}{4}$ .

Now , ratio of his work by challenge is :

$R=\dfrac{\dfrac{27}{4}}{\dfrac{3}{2}}\\\\\\R=\dfrac{27\times 2}{4\times 3}\\\\R=\dfrac{9}{2}$

Therefore , the ratio is 9/2 or 4 1/2 .

Hence , this is the required solution .

8 0

2 years ago