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3 years ago

Pls help me get this right..

Mathematics

2 answers:

jekas [21]3 years ago

7 0

Answer:

Step-by-step explanation:

Subtract the 3x to the other side then divide by 2 which gives you -3/2 not -2/3

charle [14.2K]3 years ago

6 0

3x+2y=4 or option c is the correct answer:)

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I attached a picture of math question below

professor190 [17]

The answer is 10+ $\sqrt{2}$

You have to find the distance between each individual point and add them up using the distance formula.

7 0

4 years ago

The mean temperature for the first 7 days in January was 1 °C.

Gekata [30.6K]

1degrees because in mean you have to add all the numbers up then you divided so what you have to do is 1 degrees add 7 degrees which is for the first 8 days you divide which gives you 1 degrees Celsius

3 0

4 years ago

Isabel tutors math. For each hour that she tutors, she earns 50 dollars.

IgorC [24]

Answer:

E = 950, H = 19

Step-by-step explanation:

If she earns 50 dollars an hour for tutoring and she tutors for 19 hours, she would have earned 950 dollars because if you do 19 x 50 it's 950

4 0

3 years ago

Read 2 more answers

Consider a triangle ABC like the one below. Suppose that =A110°, =b25, and =c4. (The figure is not drawn to scale.) Solve the tr

tamaranim1 [39]

Side a, angle B and angle C of triangle ABC are 26.6 units, 61.9 degrees and 8.1 degrees respectively.

<h3>What is the value of the missing angles and side?</h3>

Given that;

Angle A = 110°
Side b = 25
side c = 4
side a = ?
Angle B = ?
Angle C = ?

First we determine the length of side a

$a = \sqrt{b^2-c^2-2bc*cos(A)}$

We substitute our values into the above equation $a = \sqrt{25^2-4^2-(2*25*4*cos(110)}\\\\a = 26.6$

Side a has a length of 26.6 units.

$B = cos^{-1}(\frac{a^2+c^2-b^2}{2ac}) \\\\B = cos^{-1}(\frac{26.63464^2+4^2-25^2}{2*26.63464*4}) \\\\B = 61.9$

Angle B is 61.9 degrees.

$C = cos^{-1}(\frac{a^2+b^2-c^2}{2ab} )\\\\C = cos^{-1}(\frac{26.63464^2+25^2-4^2}{2*26.63464*25} )\\\\C =8.1$

Angle C is 8.1 degrees.

Therefore, side a, angle b and angle c of the triangle ABC are 26.6 units, 61.9 degrees and 8.1 degrees respectively.

Learn more about triangles here: brainly.com/question/14882091

#SPJ1

5 0

2 years ago

The mean of 100 numerical observation is 51.18 what is the value of the sum of all 100 numbers

malfutka [58]

The "mean" is the same thing as the "average".

To get the average, you add up all the numbers on the list,
then divide the big sum by the number of items on the list.

If there are 100 numbers on the list, then in order to find their average,
you would add up all 100 numbers, then divide the big sum by 100.

If you wound up with an average of 51.18, then you must have had
5,118 just before you divided it by 100. So the big sum is 5,118.

8 0

3 years ago