Express as a sum.

15-7

(its not 8)

answer:

B

Step-by-step explanation:

x² - 5x - 36 = (x - 9)(x + 4)

x² + (a + b)x + ab = (x + a)(x + b)

Ansanswer choice b

Step-by-step explanation:

Answer:

the answer is an group tens

Step-by-step explanation:

BRAINLIEST PLEASE

Answer:

Actual: 34 Estimated: 40

Step-by-step explanation:

The difference between these values is that the actual difference is more accurate. If you're asking for the difference as in subtracting, then 7 is the answer. Hope this helps :)

Answer:

6

Step-by-step explanation:

Actual values = 55 - 21

                         = 34

Estimated values = 60 - 20 = 40

Difference between actual and estimated values = 40 - 34 = 6

Answer: 16 degrees

Step-by-step explanation:

(3x - 18) = 66

Because vertically opposite angles are equal

66 - 18 = 48

48 divided by 3 = 16

Answer:

  35 liters

Step-by-step explanation:

The volume of 50 marbles will be ...

  50 × 0.04 L = 2.00 L

Adding 33 liters of water to that volume of marbles will bring the total volume of material in the tank to ...

  2 L + 33 L = 35 L . . . . volume of full tank

Answer:

420

Step-by-step explanation:

Prime Number: a whole number greater than 1 that cannot be made by multiplying other whole numbers

First prime numbers: 2, 3, 5, 7, 11, 13, 17, ...

Prime Factorization: prime numbers that multiply together to make the original number.

LCM = least common multiple: smallest positive number that is a multiple of two or more numbers

Start by finding the prime factorization of each number.

Start with the smallest prime number: 2

70 ÷ 2 = 35

35 is not divisible by 2 or 3, but is divisible by 5:

35 ÷ 5 = 7

7 is a prime number, so cannot be divided any further

So  70 = 2 × 5 × 7

Start with the smallest prime number: 2

84 ÷ 2 = 42

Again divide by 2:

42 ÷ 2 = 21

Now divide by 3:

21 ÷ 3 = 7

So  84 = 2 × 2 × 3 × 7

Write each number as a product of primes, matching primes vertically when possible

84 = 2 × 2 × 3       × 7

70 = 2             × 5 × 7

Now bring down the primes in each column. The LCM is the product of these factors.

LCM = 2 × 2 × 3 × 5 × 7 = 420

94.239 is already rounded to the nearest thousand as the no. of digits after the decimal place is three.

We round off numbers to make them easier to remember and it also keeps their value approximately to the place it has been rounded off.

To round off any number to any place we'll look for the digit next to that place and if it is equal to or greater than 5 we'll add one to the previous digit and make all the digits after it zeroes and if the digit is less than 5 we do not add one to the preceding digit and simply make all the digit after it to zeroes.

Given, 94.239 rounded to the nearest thousandth it is already rounded to the nearest thousand the no. of digits after the decimal place is three.

learn more about rounding off numbers here :

https://brainly.com/question/1285194

#SPJ2

Answer:

3/6

Step-by-step explanation:

15 - (6+3) = 6

6 ÷ 2 = 3

number of red is 6

and green is 3

3/6

Answer:

Yes

Step-by-step explanation:

We can use the Pythagorean Theorem to check if this triangle is a right triangle:

[tex]a^2+b^2=c^2[/tex]

Note that [tex]a[/tex] and [tex]b[/tex] are the legs of the triangle and [tex]c[/tex] is the hypotenuse:

Substitute the lengths of the sides into the equation:

[tex]60^2+63^2=87^2[/tex]

[tex]3600+3969=7569\\7569=7569[/tex]

Therefore this triangle is a right triangle.

Answer:

60 and 100

Step-by-step explanation:

Look for 2 multiples of 20 which are also factors of 300

No long explanation needed

Answer:

72 beats

Step-by-step explanation:

sec    |   5      |     30

beats |   12     |     x

30 divided by 5 = 6

12 times 6 = 72

Answer:

$0.22

Step-by-step explanation:

$0.44 -1/2 cup = $0.22

Answer:

4/5

Step-by-step explanation:

The sine ratio is defined as the opposite leg/hypotenuse.  The opposite leg is 4 and the hypotenuse is 5.

Answer:

D The sample proportion would more closely model the population proportion.

Step-by-step explanation:

The more people surveyed, the more accurate the information.

Answer:

the largest angle are 90 degree

Step-by-step explanation:

let x is the smallest angle

the angles are

x+x+2x=180

4x=180

4x/4=180/4

x=45 degree

2x=90

Answer:

4x + 44 = 180

Step-by-step explanation:

4x = 180- 44

4x = 136

x= 136÷ 4

x= 34

Answer:

4x + 44 = 180

Step-by-step explanation:

sum of angles on a straight line = 180

4x + 44 = 180

subtract 44 from both sides

4x + 44 - 44 = 180 - 44

4x = 136

Divide both sides by the coeficient of x

4x = 136

4 4

x = 34

600 ft²

Solution:

Area of triangular prism - -

Formula's:

Here the volume:

50 * 12

600 ft²

Answer:

245÷9 =0 witt remainder 9

Answer:

1:4

Step-by-step explanation:

pls heart and give brainliest much appreciated

Answer:

1:4

Step-by-step explanation:

1:4 ok bye, bc I needa ask sum questions so dont come 4 me

Answer:

0 is your answer..........

Answer:

First option [tex]0, \frac\pi2, \pi, \frac{3\pi}2[/tex]

Step-by-step explanation:

first of all, let's replace the lhs with the equivalent in sine (from the pythagoran identiy on sine and cosine)

[tex]1-sin^2\theta =1-sin\theta[/tex]

At this point we take 1 from both side, and change signs just out of convenience.

[tex]\sin^2\theta =sin\theta[/tex]

Now we have 2 options. If [tex]sin \theta =0 \leftrightarrow \theta = k\pi[/tex] the equation is verified, and we got two solutions [tex]\theta =0; \theta = \pi[/tex]. Else, we can divide by [tex]sin\theta[/tex] and we get

[tex]sin\theta = 1 \leftrightarrow \theta = \frac\pi2+k\pi[/tex].

We can add everything together and write

[tex]\theta = k\frac\pi2; k\in\{0,1,2,3\}[/tex] or, in our case, the first answer.

The simplification of square root 12 x is [tex]\mathbf{2 \sqrt{3x}}[/tex] and the square root of 8 is [tex]\mathbf{2 \sqrt{2}}[/tex]

Surds is a mathematical expression of numbers in square roots that cannot be changed to real numbers but be further simplified into irrational numbers.

From the given information.

The simplification of [tex]\mathbf{\sqrt{12x}}[/tex] is:

[tex]\mathbf{= \sqrt{4 \times 3x }} \\ \\ \mathbf{= 2\sqrt{ 3x }}[/tex]

The simplification of the  [tex]\mathbf{\sqrt{8 }}[/tex] is determined by factoring 8:

i.e.

[tex]\mathbf{= \sqrt{4 \times2 }} \\ \\ \mathbf{= 2\sqrt{ 2}}[/tex]

Learn more about surds here:

https://brainly.com/question/24700530

Answer:

2x-10+x+x+10=180, or 4x=180

Step-by-step explanation:

So since the total is 180, you add them all up like an equation.

So,

2x-10+x+x+10

Combine like terms

4x=180

x=45

Then plug it back in to the equations.

x=45

(2x-10)=80

(x+10)=55

Answer:

approximately 3.16 repeated

Step-by-step explanation:

Given parameters:

Average fuel consumption of Penelope's car = 3miles per gallon

Amount of fuel used = 9.5 gallons

Unknown:

Distance of her drive = ?

Solution:

  Since her rate of fuel consumption per miles is known, we can simply solve for the distance she covers.

  Distance covered = Rate of fuel consumption per miles x amount of fuel used

Distance covered  = 3  x 9.5  = 28.5miles

The distance covered by Penelope's car is 28.5miles

Answer:

2(4x - 8y) - 9x + 7

8x - 16y - 9x + 7

-1x - 16y + 7