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Dennis_Churaev [7]
2 years ago
11

Help Please Just solve the question below

Mathematics
1 answer:
MAVERICK [17]2 years ago
3 0
B. (3, 0.5).

Step by step explanation:

x + 2y = 4

2x - 2y = 5

Adding the 2 equations eliminates the y:

3x = 9

x = 3

Substitute for x in the first equation:

3 + 2y = 4

2y = 1

y = 0.5.
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Bethania's garden is in the shape of a right triangle. She has built walls on two sides
worty [1.4K]

Answer:

8 feet

Step-by-step explanation:

you use pythagoras so you do 6² + 4² =52. then you square root 52 which is 7.2 so she needs 8 feet.

3 0
4 years ago
Solve for the equation for x.<br> 3(10 – 4x) + 6 = 12
AVprozaik [17]

Answer:

Step-by-step explanation:

3(10 – 4x) + 6 = 12

first you need to use the distributive property

30 – 12x + 6 = 12

then subtract 6 from each side

30 – 12x = 6

then subtract 30 from each side

– 12x = -24

divide both sides by negative 12

x = 2

3 0
3 years ago
A. What are the coordinates of the vertices of the triangle below?
Viktor [21]

Answer:

Solution given:

<u>A.coordinate are</u>

A(-2,3)

B(0,-3)

C(4,5)

<u>B</u><u>.</u><u>Each</u><u> </u><u>length</u><u> </u><u>are</u><u> </u><u>:</u>

we have

length \sqrt{(x2-x1)²+(y2-y1)²}

now

AB:\sqrt{(-2-0)²+(3+3)²}=2\sqrt{10}units

BC:\sqrt{(0-4)²+(-3-5)²}=4\sqrt{5}units

AC:\sqrt{(-2-4)²+(3-5)²}=2\sqrt{10}units

<u>C.</u><u> the </u><u>figure</u><u>:</u>

<u>By</u><u> </u><u>using</u><u> </u><u>Pythagoras</u><u> </u><u>law</u>

base[b]=AB=perpendicular [p]=AC

hypotenuse [h]=BC

we have

h²=p²+b²

substituting value

(4\sqrt{5})²=2p²

16*5=2*(2\sqrt{10})²

80=2*4*10

80=80

<u>SO</u><u> </u><u>IT</u><u> </u><u>IS</u><u> </u><u>RIGHT</u><u> </u><u>ANGLED</u><u> </u><u>ISOSCELES</u><u> </u><u>TRIANGLE</u><u>.</u>

4 0
3 years ago
Equation of a line with an slope of 1/2 that contains (-4, 7)
nasty-shy [4]

Equation of a line with an slope of 1/2 that contains (-4, 7) is y=\frac{1}{2} x+9

<em><u>Solution:</u></em>

We have been given a point and slope of an equation and have been asked to write it in an equation. The two forms of writing a point and slope in equation are point slope form and standard form.

The standard form of a line is in the form Ax + By = C where A is a positive integer, and B, and C are integers. The standard form of a line is just another way of writing the equation of a line.

To write in standard form we will first write it in point slope form and then rearrange it into a standard from.

<em><u>The formula for point slope form:</u></em>

y-y_{1}=m\left(x-x_{1}\right)

where "m" is the slope of line

Given that "m" = \frac{1}{2} and (x_1, y_1) = (-4, 7)

\begin{array}{l}{y-7=\frac{1}{2}(x-(-4))} \\\\ {y-7=\frac{1}{2}(x+4)} \\\\ {y-7=\frac{1}{2} x+2} \\\\ {y=\frac{1}{2} x+9}\end{array}

Now, let us convert this equation to standard form

0.5x + 9 = y

0.5x - y = -9

Thus we have found out equation of line in point slope and standard form

3 0
4 years ago
PLEASE HELP ME!!! THANK YOU!
Troyanec [42]

Answer:

82*

Step-by-step explanation:

10x+8 = 12x-10

18 = 2x

X=9

Angle 1 = 98*

Angle 3 = 98*

180 - 98* = 82*

4 0
3 years ago
Read 2 more answers
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