Combine these radicals 8 sqrt 5 + 2 sqrt 45

Answer:

Andrew has 22 puppies, Carla has 7 puppies.

Step-by-step explanation:

Let's set up an equation.

Carla and Andrew have 29 puppies.

C + A = 29

Andrew has 8 more than twice Carla.

A = 2C + 8

Let's use substitution by plugging A into C + A = 29.

A = 2C + 8 & C + A = 29

C + (2C + 8) = 29

Now, let's combine like terms.

3C + 8 = 29

Subtract 8 from both sides.

3C = 21

Divide both sides by 3.

C = 7

Carla has 7 puppies. Plug in this value back into C + A to find how many puppies Andrew has.

C + A = 29

7 + A = 29

A = 22

Andrew has 22 puppies.

Let's check our work. Plug in Andrew and Carla's number of puppies back into our original equations.

C + A = 29

7 + 22 = 29

29 = 29

Correct!

A = 2C + 8

22 = 2(7) + 8

22 = 14 + 8

22 = 22

Your answer is correct!

Hope this helps!

Answer:

30m²

Step-by-step explanation:

To find the area of a triangle, you need to ensure that the triangle is a right-angled triangle. We can use the Pythagoras Theorem to help us prove that.

a² + b² = c²

5² + 12² = 169

13² = 169

By converse of Pythagoras Theorem, the triangle is a right-angled triangle.

Thus, you can directly find the area of the triangle using the formula: base × height ÷ 2.

Area = 12 × 5 ÷ 2

        = 30m²

Answer:

b

Step-by-step explanation:

Answer:

-2.6

Step-by-step explanation:

[tex] - 3 + \frac{ - 2}{ - 5} \\ = - 3 + \frac{2}{5} \\ = - 3 + 0.4 \\ = - 2.6[/tex]

Answer:

[tex]y\leq 4[/tex]

Step-by-step explanation:

The range is about the y values, and by looking at this parabola we can see that the maximum value is a 4. So the range would be the maximum and below (where the parabola extends to). So the values in the range would be equal to 4 and less than since the parabola is negative.

Hope this helps :)

Answer:

C and D

Explanation:

Answer:

a. 8, 13 b. 375, -1875

Step-by-step explanation:

a. -1(+2), 1(+3), 4(+4), 8(+5), 13

b. -3(-5), 15(-5), -75(-5), 375(-5), -1875

First, you would plot the point (-2,-5). The next part requires an understanding of what slope is. My teacher told me slope was "rise over run." Basically, the numerator is how much the value of y increases when x increases by the number that's in the denominator. What that means is, when you add 7 to the x value, you add 2 to the y value. You can use this to find another point to graph.

(-2+7,-5+2)

=(5,3)

You can plot this point and draw a line through both points, and you're finished.

Another thing could do is draw a slope triangle. Draw a line (segment) from (-2,-5) for 7 units in the direction of the x-axis. Draw a line (again, a segment, really. We have to be technical xD) from where that segment ends for 2 units in the direction of the y-axis. Plot a point where that ends, and it should be (5,3). Draw a line through (5,3) and (-2,5), and you're done.

Hope I could help you!

Answer:

a:  11:7

b: 11:

I hope this helped :)

Answer:

c

Step-by-step explanation:

edg 21 ^u^

Answer:

The person above me is correct. :D

Step-by-step explanation:

Answer:

Step-by-step explanation:

Rectangle area formula is : Width* Length = Area

So:

8cm*L = 96cm

L = 96cm/8cm

L = 12cm

Formula of Area of a rectangle : l×b

96=l×8

l= 96/8

l= 12

Answer : The length of the rectangle mentioned above is 12 cm.

Answer:

Okay I will ask make sure you answer immediately okay after you read this go to my account

Answer:

ok

Step-by-step explanation:

Answer:

False the vertex will not always be on the axis of symmetry.

(I may be wrong, please don't be mean its what I was taught)

sorry im in 6th grade i dont know

Answer:

The answer is B

Step-by-step explanation:

Answer:

A. 55:12

Step-by-step explanation:

Sana nakatulong

Step-by-step explanation:

height= 4b

length = 2 + b

volume = 60in³

or, l ×b × h = 60in³

or, (2+b) × b × 4b = 60in³

or, 4b²(2+b) = 60in³

or, 8b² + 4b³ = 60

or, 2b² + b³ = 15

or, b³ + 2b² -15= 0

b= 1.95

l= 2+1.95=3.95

h= 4×1.95 = 7.8

Answer:

To transform the given expression to the sum of cubes, calculate first the cube root of the terms. The cube root of the first term, 64x^6 is 4x^2 and that of the second term, 27 is 3.

Thus, the answer to this is (4x^2)^3 + 3^3

Answer:

1 banana, 1 cup flour, 2/3 cup sugar

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

you don’t make money for working 0 hours

Answer:

A

Step-by-step explanation:

If you multiply the number of hours by 11, you get the correct amount of earnings ($)

Answer:

-13

Step-by-step explanation:

As you can see C = 5 X = -4

so what you can do is put the numbers in the equation

-(5) + 2(-4) = -13

brackets represents times

and then use your calculator or mental sum

Answer:

-13

Step-by-step explanation:

c = 5

x = -4

-c + 2x

-5 + 2(-4)

-5 - 8

-13

IT IS D

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

so multiplies see och the rest of the world and the second half and the other hand if you have a good and the second one is the only way only a and the other is the first time I saw one he and only best o

Answer:

33b-8 is the perimeter

Step-by-step explanation:

Triangle is an Isosceles triangle so two side is equal

2(12b - 8) + 9b + 8

Distribute

24b - 16 + 9b + 8

Combine like terms

33b -8

Answer:

The number of words per sentence is generally greater in the fashion magazine than in the sports magazine.

Step-by-step explanation:

Answer:

[tex]a_{8} = 15[/tex]

Step-by-step explanation:

[tex]a_{1} + a_{2} + ..... + a_{7} + a_{8} = 8^{2} = 64[/tex]

[tex]-a_{1} - a_{2} ..... - a_{7} = - 7^{2} = -49[/tex]    Now add the two equations

                                 [tex]a_{8} = 64 - 49 = 15[/tex]

[tex]a_{8} = 15[/tex]

Answer:

Step-by-step explanation:

[tex]\dfrac{256}{64}=\dfrac{64}{16}=\dfrac{16}{4}=4[/tex]

Common ratio means geometric sequence.

Answer:

Step-by-step explanation: