Which expressions represent rational numbers? Check all that apply.

Answer:

48°

Step-by-step explanation:

pls mark me as brainlist

Answer:

6 1/2

6 9/10

6 8/9

6 1/3

6 3/4

Answer: 250+3x

Step-by-step explanation: 250 for the bus and the students is $3 each so the students could be x.

Answer:

72 divided by 12 = 6 feet

Step-by-step explanation:

Since there are 12 inches in ONE FOOT you have to divide the total number of inches by the inches that are in a foot which is 12.

Answer:

the answer would be 105!!

Step-by-step explanation:

5×3=15

15×7=105 aka our answer

Answer: 837

Step-by-step explanation:

Answer:

[tex]\sqrt{209}[/tex]

Step-by-step explanation:

[tex]\sqrt{15^{2} -4^{2} } =\sqrt{209}[/tex]

Answer: no

Step-by-step explanation:

if diego car can hold 14 gallons and eveery day they use 0.6 0.6x25 is 15 which means that they can drive 15 days in all so 15-1.5 13.5 so they can only drive for 13.5 days

hope this helps :)

Answer:

No, Diego's family cannot drive the car for 25 days without the warning light coming on.

Step-by-step explanation:

Find how much fuel they will use in 25 days by multiplying 25 by 0.6, since the car uses 0.6 gallons each day:

25(0.6)

= 15

Subtract this from 14 to see how much fuel will remain, starting from a full tank:

14 - 15

= -1

The number is negative, meaning that driving the car for 25 days will use up all of the fuel. So, the warning light will come on.

No, Diego's family cannot drive the car for 25 days without the warning light coming on.

Answer:

Alternate exterior angles

Step-by-step explanation:

Answer:

I think C but I could be wrong

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

By intersecting tangent secant theorem:

[tex] {x}^{2} = 4(4 + 12) \\ \\ {x}^{2} = 4 \times 16 \\ \\ {x}^{2} = 64 \\ \\ x = \sqrt{64} \\ \\ x = 8[/tex]

Answer:

6.9

Step-by-step explanation:

If a secant segment and tangent segment are drawn to a circle from the same external point, the product of the length of the secant segment and its external part equals the square of the length of the tangent segment

x² = 4 * 12

x² = 48

Take the square root of both sides

x = 6.9282032303

Rounded

x = 6.9

Answer:

1

Step-by-step explanation:

y2 - y1/ x2 - x1

3-2/ 5-4 = 1/1 = 1

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

shen's new area will be 1200 ft ^ 2

It will be 2 times the original

Donna should increase the length by 5 times

Step-by-step explanation:

Original length = 40

New length = 30 x 4 = 120

Original width = 20

New width = 20 x 5 = 100

120 x 100 = 12000 ft^2

12000/600 = 20

It will be 20 times larger

For Donna:

ex:

length = 1

width = 2

Area = 2

He wants it to be 15 times 2

Lisa says increase 4 times

2 x 3 = 6

30/6 = 5

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

a) 120 ft x 100 ft = 12000 [tex]ft^{2}[/tex]

b) 20 times

c) 5 times

Step-by-step explanation:

a) 30x4 = 120

20x5 = 100

120x100 = 12000

b) 12000/600 = 20

c) 15/3 = 5

Answer:

2

Step-by-step explanation:

Don't really know how to explain it. OmniCalculator is very helpful.

Hope that this helps!

Answer:

C.  69°

Step-by-step explanation:

The sum of interior angles in a triangle is equal to 180

two of the angles are given to find the third one we subtract their sum from 180

180 - (36+75) = 69 degrees

Answer:

Each shirt would cost $2.75

Step-by-step explanation:

Answer:

10*3=5(x-4)(doing cross multiplication)

30=5x-20

30-20=5x

10/5=x

2=x

Step-by-step explanation:

Answer:

x=10 so the proportion is 3/6 =5/10

Step-by-step explanation:

5(x-4) = 3*10, cross multiply

5x -20 =30, distribute in parenthesis

5x = 30 +20, add 20 on both sides

5x=50, combine like terms

x= 10, divide both sides by 5

Answer:

330 and 180 have 8 common factors (divisors):

1; 2; 3; 5; 6; 10; 15 and 30

out of which 3 prime factors: 2; 3 and 5

Step-by-step explanation:

Answer:

This needs more information for it to be solved.

Step-by-step explanation:

Are there answer choices?

or a chart with specific information of the appropriate measurements that can be put into the equation to solve it?

I wish i could give you a proper answer, but without the numbers I can't answer this for you. I'm sorry.

Answer:

There are no numbers

Step-by-step explanation:

Answer: 45°

Step-by-step explanation: add the angles together to get a total of 180°

Answer:

60%

=60/100

=6/10

=3/5

=3:5

Answer:

110

Step-by-step explanation:

Answer:

Step-by-step explanation:

I'll focus on -10v^2=-810 and will aim to find the solution, v.  Dividing both sides by -10, we get v^2 = 81, so that v = ±9 (two roots).

The other equation, 7r^2 = -70, has no real solutions.

r^2 = -70 yields r = ±i√10 (two imaginary solutions)

Answer:

[tex]pH = 13[/tex] --- Oven Cleaner

[tex]pH = 6.2[/tex] --- Water

[tex]pH =7.4[/tex] --- Blood

[tex]pH = 2.2[/tex] --- Vinegar

Step-by-step explanation:

The given molar concentration are:[Missing from the question]

Oven Cleaner: [h+] = [tex]10^{-13}[/tex]

Water: [h+] = [tex]0.0000007[/tex]

Blood: [h+] = [tex]0.00000004[/tex]

Vinegar: [h+] = [tex]0.0063[/tex]

Required

Determine the pH

pH is calculated using:

[tex]pH = -\log(h+)[/tex]

So, we have:

Oven Cleaner:

[tex]pH = -\log(10^{-13})[/tex]

Using a calculator, we have:

[tex]pH = 13[/tex]

Water:

[tex]pH = -\log(0.0000007)[/tex]

Using a calculator, we have:

[tex]pH = -1*-6.2[/tex]

[tex]pH = 6.2[/tex]

Blood:

[tex]pH = -\log(0.00000004)[/tex]

Using a calculator, we have:

[tex]pH = -1 * -7.4[/tex]

[tex]pH =7.4[/tex]

Vinegar:

[tex]pH = -\log(0.0063 )[/tex]

Using a calculator, we have:

[tex]pH = -1 * -2.2[/tex]

[tex]pH = 2.2[/tex]

Answer:

The correct answer is c

Step-by-step explanation:

because I studied the histogram very closely.

Hope this helps mark me as Brainliest please it would really make my day

Answer:

Third one

Step-by-step explanation:

as you can tell by the graph,

less than 6 dogs weighed 18-19 pounds

but some dogs did weigh 14-15 pounds

but most of the dogs didn’t weigh 18-19, but instead 16-17

but the only correct one is that 4 dogs weighed 18-19 pounds

Answer:

The radius is 4 units, and the equation of the circle is:

(x - 3)^2 + (y + 5)^2 = 16

Step-by-step explanation:

A circle centered at the point (a, b) and with a radius R, is written as:

(x - a)^2 + (y - b)^2 = R^2

In the image, we can see that a segment that cuts the circle in two halves is the segment between the points:

(-1, -5) and (7, - 5)

The distance between these points is the diameter of the circle.

Remember that the distance between two points (x₁, y₁) and (x₂, y₂) is:

D = √( (x₂ - x₁)^2 + (y₂ - y₁)^2)

Then in this case, the distance between the known points is:

D = √( (7 - (-1))^2 + (-5 - (-5))^2)

D = √( 8^2) = 8

The diameter of the circle is 8

Then the radius is:

R = 8/2 = 4

the radius is 4.

Now, to find the center of the circle we just need to go to any of the two extremes of the interval and count 4 units towards the center of the circle, this is:

(-1 + 4, -5) = (3, -5)

or

(7 - 4, -5) = (3, -5)

Then the center of the circle is the point (3, -5) and the radius is R = 4

The equation of the circle is:

(x - 3)^2 + (y - (-5))^2 = 4^2

(x - 3)^2 + (y + 5)^2 = 16

Answer:

10 i believe

Step-by-step explanation:

Answer:

C = 5pi inches or approximately 15.7 inches

Step-by-step explanation:

The circumference of a circle is given by

C = pi *d

The diameter is given by d=5

C = pi *5

If we use pi is approximated by 3.14

C = 3.14 *5 =15.7

C = 5pi inches or approximately 15.7 inches