2 years ago

Plz help! serious answers only

Mathematics

2 answers:

Sphinxa [80]2 years ago

8 0

110 degrees :) because they are parallel lines so they’re vertical

prohojiy [21]2 years ago

8 0

110 degrees is the answer i believe

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Jen borrowed 1500 from her parents for car repair. She plans to take 10% of her $450 weekly income to pay them back. At this rat

7nadin3 [17]

Answer:

10% of %450 is $45

SO 1500 divide by $45 is 33.33333

SO it will take a little over 33 weeks

Step-by-step explanation:

5 0

3 years ago

Find the range, mean, and standard deviation of the data set (3, 6, 9, 11, 15, 16) The range is 13 (Type a whole number.) The me

iris [78.8K]

Answer: The range is 13. The mean is 10. The standard deviation is 4.62 .

Step-by-step explanation:

The given data : 3, 6, 9, 11, 15, 16

Total number of data values : n = 6

The mean of data is given by :-

$\overline{x}=\dfrac{\sum^6_{i=1}x_i}{n}\\\\\Rightarrow\overline{x}=\dfrac{60}{6}=10$

The standard deviation is given by :-

$\sqrt{\dfrac{1}{n}(\sum^6_{i=1}(x_i-\overline{x})^2)}\\\\=\sqrt{\dfrac{1}{6}(\sum^6_{i=1}(x_i-10)^2)}\\\\=\sqrt{\dfrac{1}{6}\times(49+16+1+1+25+36)}=4.61880215352\approx4.62$

The range of the data : Maximum value -Minimum value

$=16-3=13$

6 0

2 years ago

if a rectangle has an area of 30 square meters and a perimeter of 34 meters . what is the dimensions of the rectangle?

timama [110]

P=2(L+W) and P=34 so

2(L+W)=34

L+W=17 so we can say

L=17-W

A=LW using L from above

A=(17-W)W

A=17W-W^2 and A=30 so

30=17W-W^2

W^2-17W+30=0

W^2-2W-15W+30=0

W(W-2)-15(W-2)=0

(W-15)(W-2)=0

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2 years ago

If 7y + 42 <14 then which among the following is true

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Answer:

$y$