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3 years ago

8

the coordinates of point A are (6,-7) and the coordinates of point B are (-6,2) point M is the midpoint of AB find the coordinat

es of m

1 answer:

kenny6666 [7]3 years ago

4 0

The midpoint of segment AB is (0, 2.5).

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What is the solution to the system of equations ? <br> Y=2/3 x + 3 <br> X= - 2

Firdavs [7]

Answer:

x = -2, y = 5/3

Step-by-step explanation:

we have the value of x already (-2).

x=-2

Plug it into the first equation y = 2/3x+3

y = 2/3(-2)+3

y = -4/3+3

y = -4/3+9/3

y = 5/3

x = -2, y = 5/3

7 0

3 years ago

The cost of every college is expected to increase 3.5% next year.

Verizon [17]

Answer:

prt

Step-by-step explanation:

18000(1.035)=18639

3 0

2 years ago

Read 2 more answers

Please help a kid out

Vlad1618 [11]

15/24

4 2/3=(4*3)+2/3=14/3

simply 15/24

15/3/24/3=5/8

refine

5/8*14/3

8 and 14 share a factor of 2

8/2=4

14/2=7

refine

5/4*7/3

5*7/4*3

35/12

convert to mixed number

35/12=2.11

2 11/12

the answer is 2 11/12

7 0

3 years ago

A trucking firm has a large inventory of spare parts that have been in storage for a long time. It knowsthat some proportion of

Debora [2.8K]

Answer:

$0.1546\leq \widehat{p}\leq 0.3513$

Step-by-step explanation:

The firm tests 75 parts, and finds that 0.25 of them are notusable

n = 75

x = 0.25 \times 75 = 18.75≈19

$\widehat{p}=\frac{x}{n}$

$\widehat{p}=\frac{19}{75}$

$\widehat{p}=0.253$

Confidence level = 95%

So, Z_\alpha at 95% = 1.96

Formula of confidence interval of one sample proportion:

$=\widehat{p}-Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}\leq \widehat{p}\leq \widehat{p}+Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}$

$=0.253-(1.96)\sqrt{\frac{0.253(1-0.253)}{75}}\leq \widehat{p}\leq0.253+(1.96)\sqrt{\frac{0.253(1-0.253}{75}}$

Confidence interval $=0.1546\leq \widehat{p}\leq 0.3513$

7 0

3 years ago

In a certain chemical, the ratio of zinc to copper is 3 to 17. A jar of the chemical contains 799 grams of copper. How many gra

dezoksy [38]

Answer:

let's see what to do buddy...

Step-by-step explanation:

$\frac{zinc}{copper} = \frac{3}{17} \\ \\ \frac{zinc}{799} = \frac{3}{17}$

Multiply the sides of the equation by 799

$zinc = \frac{3}{17} \times 799 \\ \\ zinc = \frac{3}{17} \times 17 \times 47 \\ \\ zinc = 3 \times 47 = 141$

So A jar of the chemical contains 141 grams of <em><u>zinc</u></em>.

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

8 0

3 years ago