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3 years ago

Help me please i need helpppp

Mathematics

1 answer:

Neporo4naja [7]3 years ago

8 0

Let the yellow corn be x

And other variety be y

Question says that she brought a dozen (as total)

So,

x +y = 12

If cost of yellow corn was 40 cent and cost of other varieties were 50 cents then,

(After changing those cents into dollar)

0.40x+ 0.50y = 5.70

Because she paid a total of 5 dollar 70 cents for yellow and other variety.

So, option "a" is correct.

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What is the equation of the following line written in slope-intercept form -2/3 and -1/-4? y = -11x - 7 y = -7x + 11 y = -7x - 1

Snowcat [4.5K]

Answer:

$y=-7x-11$

Step-by-step explanation:

Given:

The two points on the line are $(-2,3)$ and $(-1,-4)$ .

The slope of the line joining two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

$Slope,m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Here, $x_{1}=-2,y_{1}=3,x_{2}=-1,y_{2}=-4$

∴ $m=\frac{-3-4}{-1-(-2)}=\frac{-7}{-1+2}=\frac{-7}{1}=-7$

Equation of line with a point $(x_{1},y_{1})$ and slope $m$ is given as:

$y-y_{1}=m(x-x_{1})$

Plug in -2 for $x_{1}$ , 3 for $y_{1}$ and -7 for $m$ . This gives,

$y-3=-7(x-(-2))\\y-3=-7(x+2)\\y-3=-7x-(7\times 2)\\y-3=-7x-14\\y=-7x-14+3\\y=-7x-11$

Therefore, the equation of the line in vertex form is $y=-7x-11$ .

4 0

3 years ago

1. What is the value of H? (1 point) A. 4 B. 8√3 C. 16 D. 8√2

user100 [1]

Answer:

Step-by-step explanation:

Using the sine ratio in the right triangle

noting that sin45° = $\frac{1}{\sqrt{2} }$ ← exact value

sin45° = $\frac{opposite}{hypotenuse}$ = $\frac{8}{h}$

Multiply both sides by h, then

h × $\frac{1}{\sqrt{2} }$ = 8

Multiply both sides by $\sqrt{2}$

h = 8 $\sqrt{2}$ → D

6 0

4 years ago

Solve for x.

attashe74 [19]

-5.73 repeating is x

4 0

3 years ago

Read 2 more answers

More points!! Please solve 22 and 23

nadya68 [22]

For the table, we can count the circles that appear in each step of the fractal. The center is a single circle and is step 0. Step 1 sees 4 circles grow off of that one circle. Step 2 sees 4 circles grow off of each of these circles. Therefore the table should be:

Step 0 : 1 circle
Step 1 : 4 circles
Step 2 : 16 circles
Step 3: 64 circles

Using this table, we can solve the second part. This function is exponential growth and each step is a multiple of 4. Therefore, the function is $f(x) = 4^x$ .

8 0

4 years ago

Harry is reviewing his finances. He compiled a list of expenses and income. Which bar chart that accurately represents Harry's s

kvasek [131]

Answer:

The answer is the (Expenses is between 2,000-2,500) and the (Income is over 3,000)

Step-by-step explanation:

I just took the test i got it right

4 0

3 years ago