MATHEMATICS HIGH SCHOOL

9x+2y=36
9x+8y=36
What is the answer

Answers

Answer 1
Answer: \left \{ {{9x+2y=36} \atop {9x+8y=36}} \right. \n y=- (2)/(9)x+4 \n 9x+8(- (2)/(9)x+4) \n 9x+ (16)/(-9) x+32 \n 8 (2)/(9)x+32

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The coordinates of the focus of the parabola −0.25x2 = y − 2 are:A. (0, 6) B. (0, 1)C. (0, −2)D. (0, 3 )

Answers

Answer:

Option B is right.

Step-by-step explanation:

given is an equation of a parabola

-0.25x^2 =y-2\ny=-0.25x^2 +2

-x^2 =4y-8

Vertex is (0,2)

It is open down.

Axis of symmetry is x=0 or y axis

Hence focus will lie on axis of symmetry ie y axis.  

THe parabola has -4a = -4

Hence a = 1

SO focus will lie inside the parabola on axis of symmetry with a distance of a units from the vertex.

i.e. focus would equal = (0,2-1) = (0,1)

Option B is right
The equation is -0.25x^2-x+2=0
The coordinates are ((-b)/(2a);(-\Delta)/(4a))
\Delta=b^2-4ac=1+2=3
The coordinates, thus, are ((1)/(-0.5);(-1)/(-1))=(-2;1)

Leah has 6 1/4​ yards of ribbon to make bows. Each bow is made from a piece of ribbon that is 1/3 ​ yard long. What is the maximum number of complete bows Leah can make?

Answers

Leah can make 18 complete bows. She will then have 1/4 yards of fabric left over. This is true because there are 3 thirds to a whole and there are 6 complete yards of ribbon. 3 x 6 = 18. Then we get left with an extra 1/4 yards of fabric because 1/4 is less and a third.

How would i do number 37?

i will give a thanks if you reply with an answer! :)

Answers

what i would do if i were u i would line up the numbers up on thi line from y axis to x axis put the numbers negative and positive and u plot the numbers then u will get ur answer

hope it helped by explaining : )

Work each problem and connect the answers in order.1) 7 + -12 + −3
2) 2+ 8 + 7+-6
3) 13+12+12
11) -2- -6
12) -2--1
13) -15 - 4
14) 7-19
15) 5--20
6-18 + 16+ -12 + 5
16) -24 --2
7) 3.4 +2.7 +1.3+-1.2 17) −2+ -7 -1
8) + 7 + 7 + 7
3
9) -4-7
10) 2--5
17 +13 +13 +37
5) 24 +19+5 +3
21) -3 + 7 + 18
22) 14--3-4--1
23) 27-3+-24
24) (14--6)-(-5-13)
25) 10 - (5 +-7--2)
26) (-3--10) -[(5-8)+-10]
1
27) (-4--2) + (-16-5)
28) (27−−6) +-6
18) 7--13-12
19) -15--3-8 29) 27 - (-6 + −6)
20)-1-13 +-17 30) (16-4) - (8 +12)

Answers

Answers:

Sure, let's calculate the answers for each of the given problems:

1) \(7 + (-12) + (-3) = -8\)

2) \(2 + 8 + 7 + (-6) = 11\)

3) \(13 + 12 + 12 = 37\)

4) \(6 - 18 + 16 + (-12) + 5 = -3\)

5) \(24 + 19 + 5 + 3 = 51\)

6) \(-24 + 2 = -22\)

7) \(3.4 + 2.7 + 1.3 + (-1.2) = 6.2\)

8) \(7 + 7 + 7 = 21\)

9) \(-4 - 7 = -11\)

10) \(2 + 5 = 7\)

11) \(-2 + 6 = 4\)

12) \(-2 + 1 = -1\)

13 )\(-15 - 4 = -19\)

14) \(7 - 19 = -12\)

15) \(5 + 20 = 25\)

16) \(-24 + 2 = -22\)

17) \(-2 + (-7) - 1 = -10\)

18) \(7 + 13 - 12 = 8\)

19) \(-15 + 3 - 8 = -20\)

20) \(-1 - 13 + (-17) = -31\)

21) \(-3 + 7 + 18 = 22\)

22) \(14 + 3 - 4 + 1 = 14\)

23) \(27 - 3 + (-24) = 0\)

24) \((14 + 6) - (-5 - 13) = 38\)

25) \(10 - (5 + (-7) + 2) = 14\)

26) \((-3 + 10) - ((5 - 8) + (-10)) = 10\)

27) \((-4 + 2) + (-16 - 5) = -23\)

28) \((27 + 6) + (-6) = 27\)

29) \(27 - (-6 + (-6)) = 39\)

30) \((16 - 4) - (8 + 12) = -8\)

Now, connecting the answers in order:

-8, 11, 37, -3, 51, -22, 6.2, 21, -11, 7, 4, -1, -19, -12, 25, -22, -10, 8, -20, -31, 22, 14, 0, 38, 14, 10, -23, 27, 39, -8.

-14-7(9v+3)=13v+41 ​

Answers

Answer:

v=−1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−14−7(9v+3)=13v+41

−14+(−7)(9v)+(−7)(3)=13v+41(Distribute)

−14+−63v+−21=13v+41

(−63v)+(−14+−21)=13v+41(Combine Like Terms)

−63v+−35=13v+41

−63v−35=13v+41

Step 2: Subtract 13v from both sides.

−63v−35−13v=13v+41−13v

−76v−35=41

Step 3: Add 35 to both sides.

−76v−35+35=41+35

−76v=76

Step 4: Divide both sides by -76.

−76v

−76

=

76

−76

v=−1

Answer:

v = 12.67

95% sure... I could be wrong, though.

Step-by-step explanation:

14-7(9v+3)=13v+41 ​

-14-63v-21=13v+41

-14-21=76v

6=76v

12.67=v

Oliver listens to 16 minutes of an audiobook every day during his commute to work. Let d represent the number of days commuting to work and m represent the total number of minutes Oliver listens to the audiobook while commuting.

Answers

We know that Oliver listens to 16 minutes of the audiobook every day during his commute to work. So, the equation would be m = 16d.
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