What number is 7 units to the left of -1?

8
6
-8
-6

Answer:

both are mathematical sentances, what you do to one side you must do to the other, goal is to isolate variable

Step-by-step explanation:

Answer:

Step-by-step explanation:

Earning in week:

Remaining money after he deposits $150:

How many raffle tickets can be bought:

Answer:

12 tickets

Step-by-step explanation:

Answer:

the jar will last for 15 days

Given:

The equation is [tex]xy=7[/tex].

To find:

Whether the given equation is a direct variation or inverse variable.

Solution:

Direct variation: y is directly proportional to x.

[tex]y\propto x[/tex]

[tex]y=kx[/tex]

Inverse variation: y is inversely proportional to x.

[tex]y\propto \dfrac{1}{x}[/tex]

[tex]y=\dfrac{k}{x}[/tex]

Where, k is the constant of proportionality.

We have,

[tex]xy=7[/tex]

Divide both sides by x.

[tex]y=\dfrac{7}{x}[/tex]

It is in the form of inverse variation.

Since [tex]y=\dfrac{7}{x}[/tex] and it is inverse variation, therefore the correct option is (d).

Answer: C

Step-by-step explanation:

Answer:

yes, it is y=2

Step-by-step explanation:

Answer:

14 feet

Step-by-step explanation:

Answer:

&80/yt5

Step-by-step explanation:

E

Answer:

Since slopes are not same therefore lines are not parallel

Step-by-step explanation:

slope of 3x+3y=-1 is -1

slope of  -x+4y-4=0 is 1/4

Answer:

Let x = BC

then by given condition

[tex]\frac{x}{12} = \frac{24}{18}\\x = \frac{12*24}{18}\\x = \frac{48}{3} = 16[/tex]

Applying the logarithmic function, it is found that:

The age of a fossil with a proportion c of carbon 14 remaining is given by:

[tex]t(c) = -3970\ln{c}[/tex]

If the fossil has 47% of carbon-14 remaining, we have that [tex]c = 0.47[/tex], and thus:

[tex]t(0.47) = -3970\ln{0.47} = 2997[/tex]

For a fossil that is 7000 years old, we have that [tex]t(c) = 7000[/tex], and hence:

[tex]t(c) = -3970\ln{c}[/tex]

[tex]\ln{c} = -\frac{3970}{7000}[/tex]

[tex]e^{\ln{c}} = e^{-\frac{3970}{7000}}[/tex]

[tex]c = 0.5671[/tex]

A fossil that is 7,000 years old will have approximately 56.71% of its carbon-14 remaining.

A similar problem is given at https://brainly.com/question/23120675

Answer:2998 Years

             17% of carbon

Step-by-step explanation:

edmentum and plato friendly double checked with multiple sources

Words, or option A.

i hope this helps (:

Answer:

It's C - Domains

Step-by-step explanation:

Answer:

8a+4b-6

Step-by-step explanation:

Hope this helps you!!!!

Combine like terms 5a -2b - 6 + 3a + 6b

8a + 4b - 6

Answer:

imma go with the answer A

Step-by-step explanation:

hope this helps

Answer:

a=21°b=70°c=89°

Step-by-step explanation:

a=21°[by vertical opposite angle]

b+110°=180°[by linear angle]

b=180°-110°=70°

a+b+c=180°[by sum of all angle]

21°+70°+c=180

91°+c=180°

c=180°- 91°

c=89°

To find the sizes of angles a, b, and c, we need to use the properties of straight lines and angles. Since angles on a straight line add up to 180 degrees, we have: Angle a = 21°, Angle b = 159°, Angle c = 159°

Angle b: We know that the sum of angles on a straight line is 180°. Angle b and angle a are on a straight line, so we can write the equation:

b + a = 180°

Given that angle a is 21°, we can now solve for angle b:

b + 21° = 180°

b = 180° - 21°

b = 159°

Angle c: Angles b and c are vertically opposite angles, which means they are equal in measure. So, we have:

c = 159°

Angle a: We already know the measure of angle a:

a = 21°

To know more about angles

https://brainly.com/question/25716982

#SPJ2

Answer:

5

Step-by-step explanation:

(-3 * 2) - (7 * (-3)) - 10 | -6 - (- 21) -10 | -6 + 21-10 = 5.

Answer:

12x8.6=103.2 fluid ounces

Step-by-step explanation:

Answer:

103.2 fluid

Step-by-step explanation:

Per - 8.6 fluid

So if 1 bottle ve 8.6 fluid we multiply by 12 to find out how much fluid there is in 12 bottles

8.6 * 12 = 103.2 fluid

Answer:

B: About 5 days

Step-by-step explanation:

1990/400=4.975

Answer:

B. about 5 days

Step-by-step explanation:

All you have to do is 1990 divided by 400 and get 4.975  which can be rounded to 5.

Answer:

6/11

Step-by-step explanation:

(36/121)^.5 = (36^.5)/(121^.5 )= 6/11

Answer:

h = 6 cm

Step-by-step explanation:

Given that,

The area of a trapezoid, A = 66 cm²

The sum of the lengths of the two bases of a trapezoid is 22 cm.

We need to find the height of the trapezoid.

The area of a trapezium is given by :

[tex]A=\dfrac{1}{2}\times (\text{sum of parallel sides})\times \text{height}[/tex]

Substitute the values,

[tex]h=\dfrac{2A}{\text{sum of parallel sides}}\\\\h=\dfrac{2\times 66}{22}\\\\h=6\ cm[/tex]

So, the height of the trapezoid 6 cm.

Answer:

f^-1(x) = (x + 4) / -5

Step-by-step explanation:

f(x) = -5x - 4        Substitute f(x) with y

y = -5x - 4         Switch the x and y variables

x = -5y - 4          Solve it down

x + 4 = -5y

y = (x + 4)/ -5

f^-1(x) = (x + 4) / -5          <----- This is the answer

Answer:

The answer is [10+(9x3]+4 and 5x4+(7x3).

Step-by-step explanation:

I can't really explain, but if you add 10+4, it'll be 14.

If you multiply 9x3, it'll be 27.

So, if you add 27+14, it will be 41.

For the second answer:

If you also multiply 7x3, it'll be 21. If you ALSO multiply 5x4, its 20. So if you add 20+21, it will equal 41.

Answer:

4

Step-by-step explanation:

45+65=110

110x4=440

Answer:

7.7 square feet

Step-by-step explanation:

38.5 divided by 5, equals 7.7.

Hope this helps

Answer:

10

Step-by-step explanation:

80 = l(l - 2) = l2 - 2l. Solve the quadratic to find solutions l = 10 and l = -8. You can't have a negative side, so the length of the rectangle must be 10.

Answer:

1 acute and 2 right (the last option)

Answer:

Step-by-step explanation:

Because these two triangles are isoceles triangles, two angles are the same, which in this case would be 78. 78 times 2 would give us 156 for the right triangle, but since 180 - 156 does not equal 16, they are not similar nor congruent.