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snow_tiger [21]
3 years ago
8

Help I need an explanation

Mathematics
2 answers:
shepuryov [24]3 years ago
4 0

Answer:

Step-by-step explanation:

X =75

stellarik [79]3 years ago
4 0

Answer:

180° - 105 = 75°i.e angle EFB (sum of angle in st.line)

Step-by-step explanation:

X°= angle EFB ( being corresponding angle)

Hence the value of x is 75

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M–[(m–n)÷(−2)](−5), if m=−4, n=−6
Marrrta [24]

- 4 - (( - 4  + 6) \div ( - 2))( - 5) = \\   = - 4 - (2 \div ( - 2))( - 5) =  \\  =  - 4 - ( - 1)( - 5) =  - 4 - 5 =  \\  =  - 9

5 0
2 years ago
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Write the converse of this statement.
rusak2 [61]
If two angles are equal, then they are both obtuse
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3 years ago
Calculate the x and y-intercept for the line:<br><br> y=-2x+8
Kryger [21]
<span>x-intercept, y = 0:
 -2x + 8 =0
 -2x = -8
    x= -8/-2 = 4<span> 

y-intercept, x =0
y = 8</span></span>
3 0
3 years ago
If t=0 in 1980, find the value of A. Round answer to the nearest million.
balu736 [363]

P=Ae^kt

225 = 210 * e^(k*(1990-1980)

225/210=e^10k ln(225/210)=10k

k=ln(225/210)/10=0.0069

P = 210*e^(0.0069t)

for 2000 ===> t = 2000-1980=20

P = 210*e^(0.0069*20)

P=241.0749=241

4 0
3 years ago
Which is not an equation of the line going through (3, -6) and (1, 2)?
777dan777 [17]

Answer:

B, C

Step-by-step explanation:

The equation of a line can be given by y -y₁= m(x -x₁), where m is the slope. This is also known as the point-slope form.

\boxed{ slope = \frac{y _{1} - y_2 }{x_1 - x_2} }

Slope of the line

=  \frac{2 - ( - 6)}{1 - 3}

=  \frac{2 + 6}{ - 2}

= \frac{8}{ - 2}

= -4

<em>Substitute m= -4 into the equation:</em>

y -y₁= -4(x -x₁)

<em>Substitute a pair of coordinates into (x₁, y₁):</em>

Let's start by substituting (1, 2).

y -2= -4(x -1)

This gives us the same equation as D, making D an incorrect option. Note that the question asks for which is not the correct equation.

Let's change the above into the slope-intercept form, where by y is the subject of formula.

<em>Start by expanding the right-hand side:</em>

y -2= -4x +1

<em>+</em><em>2</em><em> on both sides:</em>

y= -4x +3

This equation is not the same as C. C is thus the correct option.

Let's check for options A and B.

The equation in option B is not the correct equation either as they have substituted (2, 1) instead of (1, 2) into (x₁, y₁). Thus, option B is also correct.

y -y₁= -4(x -x₁)

Substitute (3, -6) into (x₁, y₁):

y -(-6)= -4(x -3)

y +6= -4(x -3)

This is the same as option A, making option A incorrect too.

4 0
2 years ago
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