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anastassius [24]
3 years ago
15

Can anyone help me please?

Mathematics
1 answer:
antoniya [11.8K]3 years ago
6 0

Plug in (-1, 3) into both equations

Ax - 2y = 4

A(-1) - 2(3) = 4

-A - 6 = 4   Add 6 on both sides

-A = 10       Divide -1 on both sides

A = -10


5x + By = -1

5(-1) + B(3) = -1

-5 + 3B = -1      Add 5 on both sides

3B = 4       Divide 3 on both side

B = \frac{4}{3}

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PSYCHO15rus [73]
7,000lbs x 1=3.5 tons. 3.5 tons is 7,000lbs.
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Using the protractor, find the angle measure.
GarryVolchara [31]
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X^2+y^2=25 find the distance of point (x,y) from origin​
storchak [24]

Answer:

5

Step-by-step explanation:

The radius is 5.

All I do was think of the center-radius form a circle

(x-h)^2+(y-k)^2=r^2

x^2     + y^2    =25

(x-0)^2+(y-0)^2=5^2

The center is (0,0) and the radius is 5.

So a point on the circle (x,y) has a distance of 5 from the center

and the center's case here is (0,0).

3 0
2 years ago
Write an equation parallel to y=3x−1 and goes through the point (-2, -13)
solong [7]

Answer:

y=3x-7

Step-by-step explanation:

we use the equation of the line:

y=mx+b

if the line is parallel, then the slope(m) of the line stays the same:

y=3x+b

we then substitute the ordered pair into the equation and solve for b:

-13 = 3(-2)+b

-13 = -6+b

-13+6 = b

-7 = b

now we substitute the b value into the original equation and the answer:

y=3x-7

Hope this helps :)

4 0
3 years ago
A certain medication is available only in 400 μg tablets. If the patient needs to take 2.4 mg per day, how many tablets must she
Elena L [17]

Answer: 6 tablets.

<h3>Step-by-step explanation:-</h3>

Given:

• A certain medication is available only in 400 μg tablets.

So, in milligrams :- 0.4 mg

• It is also given that the patient needs to take 2.4 mg per day.

Solution:

So, in order to know how many tablets she should take, please do as following:-

\frac{2.4}{0.4}

=  >  \: 6

Hence, she must take <u>6 tablets per day</u>.

✍️ <em>By </em><em>Benjemin</em> ☺️

5 0
2 years ago
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