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3 years ago

HELP PLEASEEEEEEEE!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

mariarad [96]3 years ago

7 0

Plus or minus 3. (The 1st answer)

x^2 means (-3*-3) which equals 9

x^2 means (3838) which also equals 9

6*9=54

Maksim231197 [3]3 years ago

7 0

First u would divide by 6 on both sides to get the x by itself and you would get x squared is equal to 9. Then u would take the sqaure root of both sides because u want to get rid of the squared and a sqaure root un do's that. After square rooting both sides you would get x = 3 because the square root of x squared is x and the square root of 9 is 3. so the answer is Plus or minus 3 or the first choice. Its also plus or minus because two negative 3's would give you nine and two positive 3's would give u 9.

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A pipe is leaking at 1.5 cups per day. About how many gallons per week is the pipe leaking? hint= 1 gallon= 16 cups.

ss7ja [257]

Amount of water leaked by the pipe per day = 1.5 cups
Number of days in a week = 7
Then
Amount of water leaked by the pipe in 7 days = (1.5 x 7) cups
= 10.5 cups
It is already given in the question that
16 cups = 1 gallon
So
10.5 cups = 10.5/16 gallons
= 0.65625 gallons
= 0.66 gallons
So the pipe is leaking about 0.66 gallons per week. I hope the answer comes to your help.

5 0

3 years ago

Read 2 more answers

Amanda’s Training Continues…..Amanda is training to run a marathon. She must follow a strict schedule to make sure she is ready

Paladinen [302]

Based on her on training regiment, Amanda will be able to run 26 miles in the 25th week.

<h3 /><h3>What is the total number of miles Amanda will run every week?</h3>

Amanda will run 2 miles in the first week and then 1 less mile in the following week. Then 3 more miles in the week after.

Week 1 - 2 miles

Week 2:

= 2 - 1

= 1 mile

Week 3:

= 1 + 3

= 4 miles

Week 4:

= 4 - 1

= 3 miles

Week 5:

= 3 + 3

= 6 miles

From the given pattern, Amanda increase the number of miles ran by 2 miles every 2 weeks.

The number of miles ran every other week would therefore be:

Week 7 = 8 miles

Week 9 = 10 miles

Week 11 = 12 miles

Week 15 = 16 miles

Week 19 = 20 miles

Week 25 = 26 miles

In conclusion, she would reach her goal in 25 weeks.

Find out more on solving schedule problems at brainly.com/question/20020676.

3 0

3 years ago

-2 1/3 - (-5) = []<br><br> A. 2 2/3<br> B. 3 1/3<br> C. 3 2/3<br> D. -7 1/3

iren [92.7K]

Answer:

$2 \ \frac{2}{3}$

Step-by-step explanation:

$−2 \frac{1}{3} −(−5) \\ =− \frac{7}{3} −(−5) \\ = \frac{ - 7}{3} −(−5) \\ = \frac{8}{3} \\ =2 \ \frac{2}{3}$

7 0

2 years ago

Read 2 more answers

Help please geometry !

Illusion [34]

The argument is valid by the law of syllogism.

6 0

3 years ago

Use the following information for questions 1 through 6. The dietitian at a camp is planning breakfast for the first day of camp

Dima020 [189]

Answer:

Let x and y be the pieces of toast and sausage required.

Then the objective function is

Min Z=0.04x+0.08y

Constraints:

Vitamin A, 2x+4y≥20

Vitamin B, 3x+1.5y≥15

Iron, 2x+2y≥16

Sausage, y≤4

The non-negative constraints are x≥0, y≥0

Thus, the linear programming model is

Min Z=0.04x+0.08y

Subject to,

2x+4y≥20

3x+1.5y≥15

2x+2y≥16

y≤4

x≥0, y≥0

1) There are two variables in the LP model. So, option (B) is correct.

2) The LP model contains four constraints (excluding the non negative constraints). So, option (D) is correct.

3) Solving the LP model using a software, we get the solution as

z=0.4, at x=6 and y=2

So, The cost of the breakfast is $ 0.4. Option (B) is correct.

4) The breakfast should contains 6 toasts.

5) The amount of Vitamin B in the breakfast = 3(6)+1.5(2)=18+3=21 milligrams. So, option (C) is correct.

6) The amount of Iron in the breakfast= 2(6)+2(2)=12+4=16 milligrams. So, option (B) is correct.

Step-by-step explanation:

4 0

3 years ago