Write each equation in standard form. 2x+4y=–3 –2y–4=

Can anyone help me here this is a mastery test by the way. Too tired to type it out so I put a photo.

meriva

Answer:

1st Question is 22r4

2nd Question is 22r16

3rd Question is 11r11

4th Question is 11r30

Step-by-step explanation:

Hope this helps. I'll give you my energy.

8 0

3 years ago

Based on the percentage of total daily calories in the number of calories needed how many biscuits and packages of pemmican and

zloy xaker [14]

Answer:

Number of biscuit needs = 28 packets

Number of Pemmican needs = 18 packets

Number of Butter cocoa needs = 4 packets

Step-by-step explanation:

GIven:

Total calorie required = 5,600 calories

Biscuits 80 (Calorie per packet) 40% of total diet

Pemmican 140 (Calorie per packet) 45% of total diet

Butter cocoa 210 (Calorie per packet) 15% of total diet

Find:

Number of biscuit, Pemmican and butter cocoa need

Computation:

Number of biscuit needs = [5,600(40%)]/80

Number of biscuit needs = [2,240]/80

Number of biscuit needs = 28 packets

Number of Pemmican needs = [5,600(45%)]/140

Number of Pemmican needs = [2,520]/140

Number of Pemmican needs = 18 packets

Number of Butter cocoa needs = [5,600(15%)]/210

Number of Butter cocoa needs = [840]/210

Number of Butter cocoa needs = 4 packets

7 0

3 years ago

A pediatrician wishes to study how the average weight Y (in kilograms) of children changes during the first year of life. He plo

leonid [27]

Answer:

Answer is option a ) 0.53

Step-by-step explanation:

slope = $r*\frac{s_y}{s_x}$

Given that a pediatrician wishes to study how the average weight Y (in kilograms) of children changes during the first year of life. He plots these averages versus the age X (in months) and decides to fit a least-squares regression line to the data with X as the explanatory variable and Y as the response variable.

He finds the following quantities:

r = correlation between X and Y= 0.84

x = mean of the values of X = 5.69

y = mean of the values of Y = 6.26

S_x = standard deviation of the values of X = 3.23

s_y = standard deviation of the values of Y = 2.04

Using the formula for slope given above substitute to get

$slope = 0.84*\frac{2.04}{3.23} \\=0.5305$

round off to 0.53

Answer is option a ) 0.53

3 0

3 years ago

Which of the following are solutions to the graph

jarptica [38.1K]

Answer:

F. $\displaystyle (2, 6)$

C. $\displaystyle (-1, 0)$

B. $\displaystyle (-2, -2)$

Step-by-step explanation:

You first need to find the linear equation [in Slope-Intercept Form of course] of this graph, which is $\displaystyle y = 2x + 2.$ To do this, starting from the y-intercept of $\displaystyle (0, 2),$ you do $\displaystyle \frac{rise}{run}$ by either moving two blocks south over one block way or two blocks north over one block east [west and south are negatives]. This will give you your rate of change [slope] of 2.