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3 years ago

Given: x + 2y = -6. Solve for x.

Mathematics

2 answers:

Gnesinka [82]3 years ago

7 0

Answer:

x= −6−2y

Step-by-step explanation:

Subtract 2y from both sides of the equation x= −6−2y

MatroZZZ [7]3 years ago

7 0

Answer:-6-2y

Step-by-step explanation:

X+2y=-6

subtract 2y from both sides

X+2y-2y=-6-2y

X=-6-2y

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The x-intercept of f(x)= log 4^x is?

Naily [24]

Answer:

The x-intercept of this equation is at the point (0,0).

Step-by-step explanation:

The graph starts at the origin because the log of 4^0 = 0.

I graphed the equation on the graph below to show you how I got my answer.

If this answer is correct, please make me Brainliest!

5 0

3 years ago

Answer if u love cats & dogs

eimsori [14]

Answer:

(7, 5.25) lies on the graph.

Step-by-step explanation:

We are given the following values

x = 4, 6, 8, 12 and corresponding y values are:

y = 3, 4.5, 6, 9

Let us consider two points (4, 6) and (6, 4.5) and try to find out the equation of line.

Equation of a line passing through two points $(x_1,y_1)$ and $(x_2,y_2)$ is given as:

$y=mx+c$

where m is the slope.

(x,y) are the coordinates from where the line passes.

c is the y intercept.

Here,

$x_{1} = 4\\x_{2} = 6\\y_{1} = 3\\y_{2} = 4.5$

Formula for slope is:

$m = \dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m = \dfrac{4.5-3}{6-4}\\\Rightarrow m = \dfrac{1.5}{2}\\\Rightarrow m = \dfrac{3}{4}$

Now, the equation of line becomes:

$y=\dfrac{3}{4}x+c$

Putting the point (4,3) in the above equation to find c:

$3=\dfrac{3}{4}\times 4+c\\\Rightarrow 3=3+c\\\Rightarrow c =0$

So, final equation of given function is:

$y=\dfrac{3}{4}x$

$4y=3x$

As per the given options, the point (7, 5.25) satisfies the equation.

So correct answer is $(7, 5.25)$ .

6 0

3 years ago

a store sells pencils pens and markers that sells two times as many markers as pencils and three times as many pens as pencils i

max2010maxim [7]

Answer:

325 pencils, 650 markers, 975 pens

Step-by-step explanation:

in picture.

8 0

3 years ago

Brainlyest, plus 5 points PLEASE STEP BY STEP Evaluate x/2+5y-1.5 when x = 10 and y = 8

frozen [14]

Answer:

43.5

Step-by-step explanation:

x/2+5y-1.5

10/2+5×8-1.5

5+40-1.5

5+38.5

=43.5

4 0

2 years ago

Read 2 more answers

The table displays the frequency of scores for a calculus class on an exam. The mean of the exam scores is 3.5. Score 1 2 3 4 5

vladimir1956 [14]

Answer:

f=11

Mode=4

Median=4

Explanation:

We are given that

a.Mean of the exam score, $\bar x$ =3.5

Score(x) frequency C.F

1 1 1

2 3 4

3 f 15(4+f=4+11)

4 13 28

5 4 32

$\sum f_i=1+3+f+13+4=21+f$

$\sum f_ix_i=1(1)+2(3)+3(f)+4(13)+5(4)=1+6+3f+52+20=79+3f$

$(\bar x)=\frac{\sum f_ix_i}{\sum f_i}$

Using the formula

$3.5=\frac{79+3f}{21+f}$

$73.5+3.5f=79+3f$

$3.5f-3f=79-73.5$

$0.5f=5.5$

$f=\frac{5.5}{0.5}=11$

b.Mode:The number which is repeat most times .

4 repeat most times

Hence, mode of all exam scores=4

N=32

N is even

$Median=\frac{(\frac{n}{2})^{th}+(\frac{n}{2}+1)^{th}}{2}$

Median= $\frac{16th+17th}{2}=\frac{4+4}{2}=\frac{8}{2}=4$

7 0

3 years ago