3 years ago

HELPPP * brainliest as well

Mathematics

1 answer:

Karo-lina-s [1.5K]3 years ago

3 0

The answer can be explained like this

Step-by-step explanation:

Here,X=6 Y=5

12+X=12+6=18

3x+y=3×6+5=23

4y-10=4×5-10=10

1/2xy=1/2×6×5=30/2=15

You might be interested in

Pls help me with either one

blagie [28]

7. 65 + 75 = 140

180 - 140 = 40

( I think this is the answer)

6 0

3 years ago

Read 2 more answers

"a survey reports the percentage of people 18 years of age and older who smoke. suppose that a study designed to collect new dat

zubka84 [21]

Answer: 2017

Step-by-step explanation:

Given : The proportion of people that smoke : p=0.3

Margin of error : E= 0.02

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

The formula to calculate sample size ( if proportion is known) :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\\Rightarrow\ n=(0.3)(0.7)(\dfrac{(1.96)}{0.02})\\\\\Rightarrow\ n=2016.84approx2017$

Hence, the required minimum sample would be 2017.

4 0

3 years ago

This table shows a proportional relationship between the grams of peanuts and raisins in a bag of trail mix. Enter the number of

vodomira [7]

Answer

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Help please this is due soon! I need you to show the work as well <3 pic below

Dafna1 [17]

Answer:

perimeter: 4x+2 area: x^2+x

Step-by-step explanation:

for perimeter, you add x+x+x+x+1+1, which is 4x+2

for area, you multiply x*x+1, which would be x^2+x

7 0

3 years ago

-9x+2y=16 7x+2y=16 A8,1 B8,0 C8,-10 D0,8

Scrat [10]

D 0,8
if you replace the letters with the numbers , you’ll get it right.

3 0

4 years ago