Please solve this problem by factoring

Answer:

D

Step-by-step explanation:

"Turn around phrase" just means that you are subtracting the last number minus the first number. Subtracting the negative number is written as -(-34.7)

Answer:

7.85+8.22 = 16.07

Step-by-step explanation:

ok let's do it this way

7+8=15 ok and

80+20 is 100 so 1 dollar

and 5 and 2 are 7 so 1 dollar and 7 cents

now 15+1 is 16 and the 7 cents is 16.07

Answer:

£2,120.00

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year.

Solving our equation:

A = 2000(1 + (0.03 × 2)) = 2120

A = $2,120.00

The total amount accrued, principal plus interest, from simple interest on a principal of £2,000.00 at a rate of 3% per year for 2 years is £2,120.00.

Answer: the weight of chalk stick is 25 g

Step-by-step explanation:

Quantity of Carbon in chalk stick = 3 g Let the weight of chalk be x g.

12%of x =3

Answer:

volume is l×b×h.

thats 16*12*5 that is 960cm cubed.

total surface area is 2(l×b+b×h+h×l).

that's 2(16×12+12×5+16×5).

664 cm squared .

Answer:

surface area=2(lb+bh+hl)

surface area=2(16×12+12×5+5×16)

surface area=664cm²

volume = 16cm×12cm×5cm

volume= 960cm³

Answer:

the answer it's not correct because you have to put the 6x

Step-by-step explanation:

if you do not put an x after you put the number it would you would get it wrong

Answer:

The 4th one is linear

Step-by-step explanation:

None of the other ones are linear. trust me

Answer:

the smaller is 25 and the bigger one is 30 .

Step-by-step explanation:

1.

x+y=55

y-5=x

------------

2.

x+y=55

y-x=5

2y = 60

y = 30

30 - 5 = 25

Answer:

LESLEY GETS ABSOLUTELY NOTHINGGGG

Step-by-step explanation:

Answer:

Yes, because a quadrilateral is four side. While the rhombus also have 4 sides.

Explanation:

Just did

Answer:

Yes, it is. A quadrilateral is any shape with four, straight (non-intersecting) sides, and so is a rhombus.

I hope this helps!

Answer:

21

Step-by-step explanation:

Answer:

x = 36

Step-by-step explanation:

x/48 = 48/64

64x = 2304

x = 36

Answer:

give me brainliest

Given a line AB with Point C outside it.

Mark point D on the line AB. Join CD

With D as center, and any radius, draw an arc intersecting AB at E, and CD at F.

With C as center, and same radius as before, draw an arc intersecting CD at G.

Open a compass to length EF

Now,with G as center, and compass opened the same radius as before, draw an arc intersecting the previous arc at H.

Draw a line m passing through C and H.

Thus m is the line parallel to AB, and passing through point C

∴m∣∣AB

Step-by-step explanation:

Answer:

(3x²+4y)(3x²-4y)

Step-by-step explanation:

"difference in two squares" is the formula where a²-b²=(a-b)(a+b)

So we need to apply that formula to [tex]9x^{4}[/tex]-16y², where [tex]9x^{4}[/tex] is a and 16y² is b

First, we need to find the two factors, when squared, equal [tex]9x^{4}[/tex] and 16y²

let's start with [tex]9x^{4}[/tex]

9 is 3 squared; [tex]x^{4}[/tex] is x² squared

let's try 3x² as a factor

To double check, we can square it

(3x²)²

apply the Laws of Exponents; square 3 and multiply the power by 2

when you solve, the answer will be [tex]9x^{4}[/tex]

So it works

now let's find the factor for 16y²

16 is 4 squared, and y² is y squared

so let's try 4y

(4y)²

apply the Laws of Exponents; square 4 and multiply the power by 2

the result is 16y²

Also works!

Now let's apply the formula; as said above, [tex]9x^{4}[/tex] is a and 16y² is b

so: [tex]9x^{4}[/tex]-16y²=(3x²+4y)(3x²-4y)

we can even double check this:

multiply the 2 binomials; apply FOIL

[tex]9x^{4}[/tex]-12x²y+12x²y-16y²

the 2 12x²y's cancel out

and the result is

[tex]9x^{4}[/tex]-16y²

Hope this helps!

Answer:

D because you going up to the surface

Answer:

its c

Step-by-step explanation:

The answer is true.

(+)(+)= +

(-)(-)= +

(-)(+)= -

Answer:

-7

Step-by-step explanation:

[tex] - 3(n + 4) = 9 \\ \\ - 3n - 12 = 9 \\ \\ - 3n = 12 + 9 \\ \\ - 3n = 21 \\ \\ n = \frac{ - 21}{3} \\ \\ n = - 7[/tex]

1.30

Step-by-step explanation:

You are rounding to the nearest tenth

Answer:

x < 2

Step-by-step explanation:

Given

5 + 2x < 9 ( subtract 5 from both sides )

2x < 4 ( divide both sides by 2 )

x < 2

Answer:

A

Step-by-step explanation:

EDGE

Answer:

[tex]\displaystyle \cos(\alpha+\beta)=\frac{3\sqrt{22}-\sqrt{371}}{40}[/tex]

Step-by-step explanation:

We are given that:

[tex]\displaystyle \cos(\alpha)=\frac{\sqrt{11}}{8}\text{ and } \sin(\beta)=\frac{\sqrt7}{5}[/tex]

Where both α and β are in QI.

And we want to find cos(α + β).

First, let's determine the side lengths for each angle.

For α, we are given that its cosine is √(11)/8.

And since cosine is the ratio of the adjacent side to the hypotenuse, the adjacent side to α is √11 and the hypotenuse is 8.

Therefore, the opposite side will be:

[tex]o=\sqrt{8^2-(\sqrt{11})^2}=\sqrt{53}[/tex]

Hence, for α, the adjacent side is √11, the opposite side is √53, and the hypotenuse is 8.

Likewise, for β, we are given that its sine is √7/5.

And since sine is the ratio of the opposite side to the hypotenuse, the adjacent side of β is:

[tex]a=\sqrt{5^2-(\sqrt{7})^2}=\sqrt{18}=3\sqrt{2}[/tex]

In summary:

For α, the adjacent is √11, the opposite is √53, and the hypotenuse is 8.

For β, the adjacent is 3√2, the opposite is √7, and the hypotenuse is 5.

Using an angle addition identity, we can rewrite our expression as:

[tex]\cos(\alpha+\beta)=\cos(\alpha)\cos(\beta)-\sin(\alpha)\sin(\beta)[/tex]

And since both α and β are in QI, all trig ratios will be positive.

Using the above information, we can substitute in the following values:

[tex]\displaystyle \cos(\alpha +\beta)=\Big(\frac{\sqrt{11}}{8}\Big)\Big(\frac{3\sqrt2}{5}\Big)-\Big(\frac{\sqrt{53}}{8}\Big)\Big(\frac{\sqrt7}{5}\Big)[/tex]

Finally, simplify:

[tex]\displaystyle \cos(\alpha +\beta)=\frac{3\sqrt{22}}{40}-\frac{\sqrt{371}}{40}=\frac{3\sqrt{22}-\sqrt{371}}{40}\approx -0.1298[/tex]

Answer:

y=2x+1

Step-by-step explanation:

We can find the slope by using the two points from the graph.

Slope= y2-y1/x2-x1

And the y-intercept is 1 because it touches 1 in the graph.

Answer:

D!

Step-by-step explanation:

a and b - we cant do translations, because the shapes size would be preserved

so its between c and d

c makes it smaller -  so even smaller than KLM

d makes KLM larger(into K'L'M'), and since it is the last option, D is correct

hope it helps

ask for any questions

Answer:

3

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

if my eyes are good then yes

Answer:

slope = [tex]\frac{1}{5}[/tex]

Step-by-step explanation:

Calculate the slope m using the slope formula

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

with (x₁, y₁ ) = (3, 9) and (x₂, y₂ ) = (- 2, 8)

m = [tex]\frac{8-9}{-2-3}[/tex] = [tex]\frac{-1}{-5}[/tex] = [tex]\frac{1}{5}[/tex]