Determine whether the lines, 2x – y = 7 and y = – 1/2x – 10 are parallel or perpendicular . Explain the reason for your answer.

Answers

Answer 1

Answer:

perpendicular

Step-by-step explanation:

a line is perpendicular to another line when m of one line is the negative or opposite reciprocal of the other. m= 2

the perpendicular lines for that would be 1/2 which is the reciprocal and then the opposite sign which is negative.


Related Questions

The frequency table shows the results of drawing 20 cards from a bag of 100. There are an
equal number of cards of each color in the bag. Which color has the same frequency as the
distribution of colors in the bag?

Answers

Yellow because yellow is the color that had the most cards in that color.

White color has the same frequency as the distribution of colors in the bag.

What is Statistic?

The statistic is the study of mathematics that deals with relations between comprehensive data.

Here,
in the bag, there are 100 cards, and an equal number of cards in colors blue, red, white, and yellow.
Frequency of each color card in bag = 100 / 4 = 25

Now,
if 20 colors have been drawn, the equally distributed frequency of each color,
= 20 / 4 = 5 card,
So from the table, the white color has a frequency of 5.

Thus, the white color has the same frequency as the distribution of colors in the bag.

Learn more about Statistics here:

https://brainly.com/question/23091366

#SPJ5

Solve the equation. n over 10 plus space 7 space equals space 10

Answers

Answer:

30

Step-by-step explanation:

Given the equation;

n/10 + 7 = 10

We are to find the value of n

Subtract 7 from both sides

n/10 + 7 - 7 = 10 - 7

n/10 = 3

Cross multiply

n = 10 * 3

n = 30

Hence the solution to the equation is 30

What is the value of the expression?

40÷[20−4⋅(7−4)]

Answers

Yess 5 is the correct answer

Which of these expressions is equal to cos x?
Oa) sin(x - 45°)
Ob) sin x
c) sin (45° - x)
d) sin (90° - x)

Answers

Answer:

[tex]\sin \left(90^{\circ \:}-x\right)=\cos \left(x\right)[/tex]

Hence, option D is correct.

Step-by-step explanation:

Given the expression

[tex]sin\:\left(90^{\circ }\:-\:x\right)[/tex]

Using the angle difference identity

[tex]\sin \left(s-t\right)=\sin \left(s\right)\cos \left(t\right)-\cos \left(s\right)\sin \left(t\right)[/tex]

so the expression becomes

[tex]sin\:\left(90^{\circ }\:-\:x\right)=\sin \:\left(90^{\circ \:\:}\right)\cos \:\left(x\right)-\cos \:\left(90^{\circ \:\:}\right)\sin \:\left(x\right)[/tex]

as sin 90° = 1

so sin 90° cos x = cos x

also

cos 90° = 0

so con (90°) sin x = 0

Thus, the expression becomes

[tex]\sin \:\left(90^{\circ \:\:}\right)\cos \:\left(x\right)-\cos \:\left(90^{\circ \:\:}\right)\sin \:\left(x\right)=\cos \:\left(x\right)-0[/tex]

                                                           [tex]= cos (x)[/tex]      ∵ [tex]\cos \left(x\right)-0=\cos \left(x\right)[/tex]

Therefore,

[tex]\sin \left(90^{\circ \:}-x\right)=\cos \left(x\right)[/tex]

Hence, option D is correct.

(7 with a -8 exponent in parentheses with -4 exponent

Answers

Step-by-step explanation:

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A BOOKMARK
RONO O Abc I 3 x
SELECTOR TOOL
Select the relevant button to use a function
5 In Smithville, the gas station is one mile north of the convenience store, which is located at point zero. The laundromat is 5
of a mile south
2
3
of the gas station. There is a sandwich shop that is of a mile south of the convenience store and a day care that is of a mile south of
5
the sandwich shop.
s
Locate and label each point on the number line.

Answers

Answer:

The answer is 3/4

Step-by-step explanation:

Help plz I need help

Answers

Answer:

A. 10,000

B. 10,000,000,000

C. 10

what's 9+10? divided by 900 x 890*92​

Answers

Answer:

19

Step-by-step explanation:

Which term is a word for an initial amount of money that is borrowed or Invested?
A:Time
:Bprincipal
C:interest
D:interest rate

Answers

Answer:

B. Principal

Step-by-step explanation:

A principal is defined in economics as a sum of money lent or invested, on which interest is paid.

Hope this helps!

what is 10 4/9 as an improper fraction

Answers

Answer: 10 4/9 as an improper fraction is 94/9

to get this answer, multiply the whole number and the denominator together.

then add the numerator to the denominator then you just put the answer from the second step over the original denominator

[tex]\huge\text{Hey there!}[/tex]


[tex]\mathsf{10\dfrac{4}{9}}\\\\\mathsf{= \dfrac{10\times9 + 4}{9}}\\\\\mathsf{= \dfrac{90 + 4}{9}}\\\\\mathsf{= \dfrac{94}{9}}}\\\\\\\\\\\huge\text{Therefore, your answer should be:}\\\huge\boxed{\mathsf{\dfrac{94}{9}}}\huge\checkmark[/tex]


[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]


~[tex]\frak{Amphitrite1040:)}[/tex]

ASAP WHATS THE ANSWER???

Answers

Answer:

algebraic expression as they used variables

fill in the blamk to make the equation true 1= blank /7 ​

Answers

Answer:

7

Step-by-step explanation:

7/7=1

Answer

1=7/7

Step-by-step explanation:

SOMEONE HELP ME PLEASE

Answers

y - 5 = -1/2(x-1)

hope this helps!

What is the value of x

•15
•21
•26
•105

Answers

Answer:

15

Step-by-step explanation:

1) Given ABCDEFGH solve for x
F 2 fte
18 ft
D
4 ft
B
C
H
f+​

Answers

Answer:

x=14

Step-by-step explanation:

18 is what percent of 42?

Answers

Answer:

42.86

Step-by-step explanation:

Answer:

42.86%

Step-by-step explanation:

First, we turn it into a fraction:

18/42

Simplify:

3/7 = 42.86 (rounded)

So 18 is 42.86% of 42

Please help this is due in a few minutes!! (picture is below)

Answers

If you have any graph paper, try drawing a graph axis and plotting the points mentioned. It’ll make more sense once you have a visual diagram :)

Please help! I will give brainiest to the first right answer WITH STEPS!!!
If it's correct but has no steps then am sorry. I really want to know how to solve it by myself.

Answers

Answer:

x = 50

51

Step-by-step explanation:

Question 7

This is an isosceles triangle, you can identify this, by its little tick marks on two sides of the triangle. So that means there are two 35 angles. by the rule of triangles, all angles added all together must be 180°

35 + 35 + 2x + 10 = 180

Combine like terms

70 + 10 + 2x = 180

80 + 2x = 180

2x = 180 - 80

2x = 100

2x/2 = 100/2

x = 50

Question 8

First, we need to find x to find angle Y. This is a right triangle as we can see from the square at the corner of the triangle. So, that means, that Angle Z is 90°. We know that all angles of a triangle will add up to 180 no matter what.

3x + 2x + 5 + 90 = 180

Comebine like terms

3x + 2x = 5x

90 + 5 = 95

5x + 95 = 180

5x = 180 - 95

5x = 85

5x/5 = 85/5

x = 17

Angle Y = 3x

3x

3(17)

51°

It says "Enter the value only without the degree symbol" so, 51

Hope this helps ^w^

Ramesh deposited ₹ 2050 in a bank and in the month of January he withdrew ₹410 from his account on the last date of the month. Find the ratio of (a) Money withdrawn to the total money deposited. (b) Money withdrawn to the remaining amount in the bank.

Answers

Answer:

a. 1:5

b 1:4

Step-by-step explanation:

The ratios are as follows

a. For money withdrawn to total money deposited

₹410 : ₹ 2050

₹41:₹205

1:5

b. For money withdrawn to the remaining amount

₹410: (₹2050 - ₹410)

₹410:₹1640

₹41:₹164

1:4

Solve the proportion: 35/8 = 105/x

Answers

Answer:

x=24

Step-by-step explanation:

Solve the inequality 3x – 4> 2x +a, giving your answer in terms of X and a​

Answers

Answer:

x > a + 4

Step-by-step explanation:

3x - 4 > 2x + a

i) move -4 to the right-hand side and change its sign

3x > 2x + a + 4

ii) move 2x to the left-hand side and change its sign

3x - 2x > a + 4

iii) substract the values

x > a + 4

? Given that
40 : 3 = 6 : 5
Calculate the value of x.

Answers

Answer:

x = 0.9

Step-by-step explanation:

according to proportion;

= 4x : 3 = 6 : 5

= 4x / 3 = 6 / 5

= 4x = (6 / 5) × 3

= 4x = 1.2 × 3

= x = 3.6 / 4

= x = 0.9 or 9/10

HELP PLEASE

Answer choices

A). 12

B). 2

C). 6

D). 25/3

Answers

That is 6 I believe

3 squared equals 9
9*2=18
18/3=6

which of these expressions is equivalent to 3/6

Answers

1/2, 6/12, 9,/18, and 15/30


Suppose y = 8x + 3. What is y, if x = 4?

Answers

Answer:

y=35

Step-by-step explanation:

y= 8(4)+3= 32+3= 35, so y=35

Answer: y=35

Step-by-step explanation:

Y=8x+3

Y=8(4)+3

Y=32+3

Y=35

CAN SOMEONE PLEASE HELP ASAP

Answers

Answer:

See photo

Step-by-step explanation:

Please Help, Thanks!!
What is the GCF of 33 and 99?

Answers

Answer:

33

Step-by-step explanation:

33= 11 * 3

99= 11 * 3 * 3

Answer:

33.

Step-by-step explanation:

33 = 3*11

99 = 3*3*11

The common factors are 3 and 11 so the GCF = 3*11 = 33.

Can someone plz help me???

Type the correct answer in the box.
The equation of the line in the graph is y = ____x + ____
(Graph in photo)

Answers

Answer:

y = -x - 1

Step-by-step explanation:

y = mx + b

m = slope

b = y-intercept

On the graph, the point on the y-axis is the y-intercept. That point is (0, -1). So the y-intercept is -1.

To find the slope, find two points and put it in the slope equation.

Point A: (0, -1)

Point B: (-1, 0)

m = [tex]\frac{y_{2}-y_{1}}{x_{2}-x{1}}[/tex]

Point A: [tex](x_{1}, y_{1})[/tex]

Point B: [tex](x_{2}, y_{2})[/tex]

m = [tex]\frac{0 - (-1)}{-1 - 0}[/tex]

m = [tex]\frac{1}{-1}[/tex]

m = -1

y = -1x - 1

In other words, y = -x - 1

Hope this helped! <3

Answer:  y = -1x - 1

This means -1 goes in the first box, and -1 goes in the second box.

y = -1x - 1 is the same as y = -x - 1

========================================================

Explanation:

The two points (0,-1) and (1,-2) are on the red diagonal line.

Let's use the slope formula to compute the slope

m = (y2-y1)/(x2-x1)

m = (-2-(-1))/(1-0)

m = (-2+1)/(1-0)

m = -1/1

m = -1

The slope is -1.

The y intercept is -1 because the red line crosses the y axis at -1.

Since the y intercept is -1, this means b = -1.

With m = -1 and b = -1, we go from y = mx+b to y = -1x + (-1). This is the same as y = -1x - 1

Furthermore, that equation simplifies to y = -x - 1.

Side note: the slope and y intercept aren't always the same value.

Gwendolyn can run the 100-meter dash in ¾ seconds. Francine’s best time is 18.65 seconds. How much faster is Gwendolyn than Francine in the 100-meter dash?

Answers

Answer:

Gwendolyn is faster than Francine by 2.9 seconds.

Step-by-step explanation:

15 3/4= 15.75

18.65- 15.75= 2.9

I need help on this one

Answers

Answer:

<A=60°, x=12, y=6√3

Step-by-step explanation:

<A= 180 - (<B+<C)

angles in a triangle add up to 180°

<B=90°, right angle, <C=30°, given

<A=180-(90+30)

<A=180-120

<A=60°

Side x.

Using the theorem

Side opposite 30° in right triangle is half the hypotunese, x, we know that 6 is half of x.

6 · 2 =12

Side y.

Use the pythagorean  theorem to find side y

[tex]\sqrt{a^{2} +b^{2} }[/tex]=c

we have c, which is x, and we need a, which is y,

so we subtract [tex]c^{2} -b^{2}[/tex]

12^2 - 6^2

144-36=108

[tex]\sqrt{108}[/tex] is not a perfect square

so factor,

[tex]\sqrt{108}= 6 \sqrt{3}[/tex]

6*6= 36*3 = 108, 6 is the perfect square so bring out

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