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3 years ago

Can someone please help me out? I am noooottt good at these.

Mathematics

2 answers:

xeze [42]3 years ago

5 0

Question 5 is circumference and diameter

Question 3 is reciprocal

I’ll comment the rest if I can answer them all. I’m also in a math quiz waiting for answers. So I’ll do my best :)

Evgen [1.6K]3 years ago

5 0

Answer:2 21/37

Step-by-step explanation:

do you need an explanation??

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Find the solution to the systems of equation 3x-2y=-9 4x+3y22

eimsori [14]

Answer:

x = 1 and y = 6

Step-by-step explanation:

3x - 2y = -9 ........................... eqn 1

4x + 3y = 22 ........................... eqn 2

to eleminate y, multiply eqn 1 by 3 and eqn 2 by 2

(3x - 2y = -9) × 3

(4x + 3y = 22) × 2

9x - 6y = -27 ........................... eqn 3

8x + 6y = 44 ........................... eqn 4

Add eqn 3 and 4 together and we get

17x = 17

x = 17/17

x = 1

To get y, substitute 1 for x in any of the eqns

taking eqn 4

8(1) + 6y = 44

8 + 6y = 44

6y = 44 - 8

6y = 36

y = 36/6

y = 6

4 0

3 years ago

The following data points represent the number of students in each teacher's class at Dodger Middle School. Sort the data from l

Natali5045456 [20]

Answer:

i think 19

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Fittoniya [83]

D. Linear y= -x - 1

Explanation: y=mx+b
B=-1
M=0

6 0

3 years ago

Read 2 more answers

Solve -10 >/= x + 17

Ira Lisetskai [31]

Answer:

$x\le \:-27$

Step-by-step explanation:

$-10\ge \:x+17$

Switch sides:

$x+17\le \:-10$

Subtract 17 from both sides:

$x+17-17\le \:-10-17$

$x\le \:-27$

8 0

3 years ago

On a typical day, a jewelry store sells 8 bracelets. The data show the number of bracelets sold on each day for four weeks at a

mote1985 [20]

For which week would the mean of the data be a good estimate of the jewelry store's weekly sales throughout the year?

Answer: Week 4's mean would be a good estimate of the jewelry store's weekly sales throughout the year. Because the average of the Week 4's sales is 8. Also we can see the Week 4's data appears without outliers. So the option Week 4: 9, 7, 8, 8, 11, 6, 7 would be a good estimate of the jewelry store's weekly sales throughout the year.

Explanation:

Week 1's mean is:

$\frac{7+8+7+9+1+6+8}{7} =\frac{46}{7} =6.57$

Week 2's mean is:

$\frac{6+7+8+7+9+8+17}{7} =\frac{62}{7} =8.86$

Week 3's mean is:

$\frac{3+1+2+3+2+3+2}{7} =\frac{16}{7} =2.29$

Week 4's mean is:

$\frac{9+7+8+8+11+6+7}{7} =\frac{56}{7} =8$

Since the week 4's mean is 8, which is same as typical day's sale of bracelet's. Therefore, week 4 will be good estimate of the jewelry store's weekly sales throughout the year.

8 0

4 years ago

Read 2 more answers