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3 years ago

8x-4y=16 -5x-5y=5 Graph the both

Mathematics

2 answers:

Free_Kalibri [48]3 years ago

7 0

When graphing the two equations you have to see what the two equations intersect with which would be (1,-2)

Sergeeva-Olga [200]3 years ago

3 0

Put the equations in slope intercept form in order to graph them(solve for y)

y=2x-4

y= -x-1

Both will be intersecting (1,-2)

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If a = 12 and B = 43 degrees, find c.

ludmilkaskok [199]

Answer:

Step-by-step explanation:

You subtract 43 from 12 you get 31 then you add 43 and 31 you get 74 bye

8 0

3 years ago

Read 2 more answers

HALP MEEEEEEEEEEEEEEE

nevsk [136]

Answer:

-1, 9, - 21, 69

Step-by-step explanation:

Given recursive formula:

a₁ = -1
aₙ = - 3aₙ₋₁ + 6 for n ≥ 2

The first 4 terms are:

a₁ = - 1, given
a₂ = - 3*(-1) + 6 = 3 + 6 = 9
a₃ = - 3*(9) + 6 = - 27 + 6 = - 21
a₄ = - 3*(-21) + 6 = 63 + 6 = 69

6 0

3 years ago

0 A maker of a certain brand of low-fat cereal bars claims that the average saturated fat content is 0.5 gram. In a random sampl

balandron [24]

Answer:

The first step is to determine the average

$x= \frac{0,6+0,7+ 0,7+0,3+0,4+ 0,5+ 0,4 +0,2}{8}\\\ x= 0,475$

The exercise says it’s a normal distribution: (n=8)

$s^{2}= \frac{1}{n-1} ((0,6.x)^2+2(0,7-x)^2+(0.3-x)^2+2(0.4-x)^2+(0.5-x)^2+(0.2-x)^2)\\\ \frac{1}{7}*0,235 = 0,0336 \\\\ s= 0183$

According to the exercise, the mean is equal to 0,5 then the value of t of the distribution can be obtained

$t= \frac{x-u}{\frac{s}{\sqrt{n} }}\\\ t= \frac{0,475 - 0,5}{0,183}\\\ t= -0,3860$

The variable t has 7 grade to liberty, we calculate the p-value as:

$2* P(t < - 0,3860)= \\\ 2* 0,3554 = 0,7108$

This value is very high, therefore the hypothesis is not rejected

7 0

4 years ago

For the expression, use a property to write an equivalent expression, tell which property you used. Please help, and thank you :

raketka [301]

What about if you use the distributive property? You could do 1(x+13) because the 1 would distribute to the x and the 13 making it x+13. Hope that is helpful.

4 0

3 years ago

Resolver las siguientes desigualdades 3y<6 -x/2>2 Y+8>9 -3x <15

Crazy boy [7]

Answer:ndbdnd ndbdnd 192

Step-by-step explanation:

BBB as haha

8 0

3 years ago