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3 years ago

Help!! It’s 50 questions i need this 2 plzz

Mathematics

2 answers:

Stels [109]3 years ago

6 0

It will be "D" because 1/8 you need to make to be 1 so, you will multiply it by 8 and 8*4.5 will be 36.

puteri [66]3 years ago

3 0

The answer is D, because it takes four bricks to build 1/2 of wall, so 8 bricks for 1 ft. times 8 by 4 and get 32 for four feet. Add 4 more to get 4 1/2 feet.

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please answer this question ASAP and all answer questions I beg you please answer all questions correctly I will give you a brai

Travka [436]

Answer:

first pic: 22

2nd pic: 31

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2 years ago

Marie ordered a root beer float at the ice cream shop. the float was $2, and she paid a 6% sales tax. how much did Marie pay for

podryga [215]

$2 (0.06)= 0.12
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3 years ago

What is the equation of the line that is parallel to the given line and passes theought the point (12, -2)

Nesterboy [21]

Answer:

Option D (y = 5/6x -12).

Step-by-step explanation:

Hey there!

The equation of the line which passes through the point (12,-2) is (y+2) = m2(x-12)………(i) [Using one point formula].

According to the question, the first line passes through point (12,6) and (0,-4).

So,

$slope(m1) = \frac{y2 - y1}{x2 - x1}$

$or \: m1 = \frac{ - 4 - 6}{0 - 12}$

$or \: m1 = \frac{5}{6}$

Therefore, the slope of the line is 5/6.

Now as per the condition of parallel lines, m1 =m2 = 5/6.

So, keeping the value of m2 in equation (i), we get;

(y+2) = 5/6(x-12)

$y + 2 = \frac{5}{6} x - 10$

or, y = 5/6x - 12.

Therefore, the required equation is y = 5/6 X - 12.

Hope it helps!

3 0

3 years ago

I’m timed plsss answer correctly I’ll mark u brainliest

Artemon [7]

Answer:

$\sqrt{125}$

Step-by-step explanation:

Use Pythagorean theorem since you have a right triangle $15^{2}$ = $10^{2} + x^{2}$

225 = 100 + $x^{2}$ so x = $\sqrt{125}$

7 0

3 years ago

Read 2 more answers

Two sections of a class took the same quiz. Section A had 15 students who had a mean score of 80, and Section B had 20 students

Nezavi [6.7K]

Answer: A. 85.7

Step-by-step explanation:

Given : Two sections of a class took the same quiz.

Section A had 15 students who had a mean score of 80, and Section B had 20 students who had a mean score of 90.

We know that , $\text{Mean}=\dfrac{\text{Sum of observations}}{\text{No. of observations}}$

Then , for section A :

$\text{Mean score }=\dfrac{\text{Sum of scores in sec A}}{\text{No. of students}}$

$\Rightarrow\ 80=\dfrac{\text{Sum of scores in sec A}}{15}\\\\\Rightarrow\ \text{Sum of scores in sec A}=80\times15=1200$

Similarly in Section B, $\text{Sum of scores in sec B}=90\times20=1800$

Total scores = Sum of scores in sec A+Sum of scores in sec B

=1200+1800=3000

Total students = Students in sec A +Students in sec B

=15+20=35

Now , the mean score for all of the students on the quiz = $\dfrac{\text{Total score}}{\text{Total students}}$

$=\dfrac{3000}{35}=85.7142857143\approx85.7$

Hence, the approximate mean score for all of the students on the quiz = 85.7

Thus , the correct answer is option A. 85.7.

7 0

2 years ago