Someone help please

Answer:

4x + 64

Step-by-step explanation:

Answer:

117

Step-by-step explanation0thing

Answer:

Large Number: 41

Small Number: 20

Step-by-step explanation:

Answer:

Step-by-step explanation:

(a - b)² = a² - 2ab +b²

Area of rectangle = length * width

                             = (2x - 5)(2x -5)

                             = (2x - 5)²

                            = (2x)² - 2*(2x)(5) + 5²

                             = 4x² - 20x + 25

The value of  sin (90° - 9) is 11/15, Option A is correct.

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

Using the trigonometric identity sin(90° - θ) = cos(θ), we have:

sin(90° - 9) = cos(9)

To evaluate cos(9) in degrees,

cos(θ) = cos(π/2 - θ)

Substituting θ = 9 degrees, we get:

cos(9) = cos(π/2 - 9°)

Using radians, π/2 - 9° = 1.4661

cos(9) = 0.9781

Therefore, sin(90° - 9) = 0.9781, which is equivalent to 11/15 when simplified.

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Answer:

Step-by-step explanation:

Answer:

[tex]x=\sqrt{10^{2}-y^{2}}[/tex]

Step-by-step explanation:

[tex]x^{2} +y^{2} =10^{2} \\x^{2} =10^{2}-y^{2}\\x=\sqrt{10^{2}-y^{2}}[/tex]

Answer:480

Step-by-step explanation:

12,000 Divided by 25 = 480

Answer:

2/7 and 2 2/5

Step-by-step explanation:

you can use a fraction calculator if you are really having trouble.

Answer:

A or b not to sure

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

One way you could figure out if a graph is a function is by doing the vertical line test:

Put a vertical line across every x value, if there is more than one point within one of the lines, it is not a function.

Answer:

17 sq cm

Step-by-step explanation:

i used the formula, A = 1/2h(sum of bases)

A = 1/2(4)(3+5.5)

A = 2(8.5)

A = 17 square cm

Answer

94 degrees

Step-by-step explanation:

47+47=94 there for x=94

Answer:

[tex]\huge \colorbox{blue}{B}[/tex]

Step-by-step explanation:

we are given the formula,Mass and volume

to find density we just need to substitute the value of mass and value and simplify it

[tex] \sf substitute \: the \: value \: of \: mass \: and \: volume : [/tex]

[tex] \quad \: \sf \dfrac{7.0 \times {10}^{24} \: kg }{3.5 \times {10}^{12} \: {km}^{3} } [/tex]

now we will use [tex]\dfrac{x^m}{x^n}=x^{m-n}[/tex] to simplify division

[tex] \sf simplify \: division : \\ \quad \: \sf 2 \times {10}^{24 - 12} \times \frac{kg}{ {km}^{3} } \\ \quad \tt 2 \times {10}^{12} \frac{kg}{ {km}^{3} } [/tex]

hence, our choice is [tex]B[/tex]

___________________________________

[tex]\huge\underline{\tt{\red{Formula:}}}[/tex]

[tex]\quad\quad\quad\quad\tt{density = \frac{mass}{volume} }[/tex]

[tex]\huge\underline{\tt{\red{Solution:}}}[/tex]

[tex]\quad\quad\quad\quad\tt{density = \frac{7.0 \times {10}^{24} \: kg}{3.5 \times {10}^{12} \: k {m}^{3} } }[/tex]

[tex]\quad\quad\quad\quad\tt{density = (\frac{7.0}{3.5 } = 2.0)}[/tex]

[tex]\quad\quad\quad\quad\tt{\:\:and\:\:({10}^{24 -12})}[/tex]

[tex]\quad\quad\quad\quad \boxed{\tt{density = 2.0 \times {10}^{12} \: \frac{kg}{k {m}^{3} }} }[/tex]

[tex]\huge\underline{\tt{\red{Answer:}}}[/tex]

[tex]\quad\quad \underline{\boxed{\tt{ \red{B.) \: \: 2.0 \times {10}^{12} \: \frac{kg}{k {m}^{3} }}}} }[/tex]

[tex]\huge\underline{\tt{\red{Explanation:}}}[/tex]

Given that the formula for density is equal to mass all over the volume.

We use this formula:

[tex]\boxed{\tt{density = \frac{mass}{volume} }}[/tex].

We substitute it like this:

[tex]\boxed{\tt{density = \frac{7.0 \times {10}^{24} \: kg}{3.5 \times {10}^{12} \: k {m}^{3} } }}[/tex]

Then, hence we got:

[tex]\boxed{\tt{density = 2.0 \times {10}^{12} \: \frac{kg}{k {m}^{3} }} }[/tex]

___________________________________

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✍︎ C.Rose❀

Answer:

15a² + 21a + 19 = 0

Step-by-step explanation:

Given

(4a + 3)² = (a + 5)(a - 2)

(4a + 3)(4a + 3) = (a + 5)(a - 2 ) ← expand both sides using FOIL

16a² + 24a + 9 = a² + 3a - 10 ( subtract a² + 3a - 10 from both sides )

16a² - a² + 24a - 3a + 9 + 10 = 0 ← collect like terms

15a² + 21a + 19 = 0

Answer:

Step-by-step explanation:

1. 2

2. 1/4

3. 3

4. 5

5. 3/2

6. -6

7. -3

The decimal point in 6.8 is moved two places to the right. Option D is correct.

Decimal value is defined as showing the place value of the digits in a decimal number. If any proportion of the digit is lower than 1 it would be represented after the dot right to the absolute value,

Here,

Given expression,
= 6.8 × 100
= 6800.00

Thus, the decimal point in 6.8 is moved two places to the right. Option D is correct.

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Answer:

1. 90      2. 130       3. 55

Step-by-step explanation:

Every triangle when you add all the angles will = 180 degrees for this you add the 2 angles that you have and subtract it from 180

1.   35+55+ C = 180

90 = 180

C = 90

2. 25+25+C = 180

50 + C = 180

C = 130

3. 62 + 63 + C = 180

125 + C = 180

C = 55

Answer:

Step-by-step explanation:

sum of all the angles of triangle = 180

1) ∠1 + ∠2 + ∠3 = 180

35 + 55 + ∠3 = 180

90 + ∠3 = 180

       ∠3 = 180 -90

            ∠3 = 90

If one angle is 90, then, it is a right angled triangle.

2) 25 + 25+ ∠3 =180

        50 + ∠3 =180

             ∠3 =180 -50

       ∠3 = 130

If two angles are equal, then it is an isosceles triangle.

3) 62 + 63 + ∠3 =180

             125 +∠3=180

                     ∠3 = 180-125

                     ∠3 = 55

All the angles are different, so it is a scalene triangle

Answer: 50 degrees

Step-by-step explanation:

The exterior is the sum of the interior remote angles.

Answer:

(x−9)(x−8)

Step-by-step explanation:

Consider the form

x2+bx+c. Find a pair of integers whose product is

c and whose sum is b

. In this case, whose product is 72

and whose sum is −17.−9,−8

Write the factored form using these integers.(x−9)(x−8)

Answer:

180/4 = x/12

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

2 1/2 = 5/2

5/2 x 4/1 = 20/1 = 20

(We are dividing fraction)

(keep change flip)

Answer:

5/12

Step-by-step explanation:

Hello, I am no math expert so take this with a grain of salt. Tan=Opposite/Adjacent. Side ON is opposite and side MN is Adjacent. This would mean that the ration would be 5/12. I hope that helped!

Answer:

Since 5 is in most of the answers, I´m guessing that 5 is the length of the short leg. The answer is C

Step-by-step explanation:

In SohCahToa, Sine, Cos, and Tan all have a formula. Since your looking for tan, you would find the sides that are opposite and adjacent to the hypotenuse. And since tan is opposite over adjacent, it would be 5 over 12.

Sine=Opposite over Hypotenuse

Cos=Adjacent over Hypotenuse

Tan=Opposite over Adjacent