Expand & simplify
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Answer:

37.1

Step-by-step explanation:

37.1

Answer:

C

Step-by-step explanation:

Step-by-step explanation:

3(7 + x) = 3×7 + 3x = 21 + 3x

remember, when you multiply two expressions, you need to multiply every term of the first expression with every term of the second expression, and then add all partial results (by considering the individual signs, of course).

Answer:

82•5°

Step-by-step explanation:

[tex]28 + 68.5 + x = 180[/tex]

[tex]x = 180 - 97.5[/tex]

[tex]x = 82.5[/tex]

Here,

let the forth degree of the quadrilateral be y

Then,

90° +90° +68.5° + y =360° (all the interior angle of a quadrilateral is 360°)

or, 248.5+ y=360°

or, y = 360° - 248.5°

or, y= 111.5°

Again, the second angle of the triangle be a

Then,

a=111.5(vertically opposite angle)

Lastly,

29° + 111.5° + x = 180°(all the interior angle of a triangle is 180°)

or, 140.5° + x = 180°

or, x =180° - 140.5°

or, x=39.5°

Answer:

D. 81/m^7.

Step-by-step explanation:

(3m ^ -4)^3(3m^5)

= (3/ m^4) ^3 (3m^5)

= 3^3/ m^12)(3m^5)

= 81/m^7.

Work Shown:

[tex]a^2 + b^2 = c^2\\\\a^2 + 5^2 = 8^2\\\\a^2 + 25 = 64\\\\a^2 = 64-25\\\\a^2 = 39\\\\a = \sqrt{39}\\\\a \approx 6.244998\\\\a \approx 6.2[/tex]

[tex]\tan 60^{\circ}~\text{equals y coordinate divided by x coordinate, where }(x,y) = \left(\dfrac 12, \dfrac{\sqrt 3}2 \right)[/tex]

[tex]\tan 60^{\circ}\\\\= \dfrac yx \\\\\\=\dfrac{\sin 60^\circ}{\cos 60^\circ}\\\\\\=\dfrac{\tfrac{\sqrt 3}2}{\tfrac 12}\\\\\\=\dfrac{\sqrt 3}2 \times 2\\\\\\=\sqrt 3[/tex]

This rule is enough

Now

Here A=60°

Answer:

152.4

Step-by-step explanation:

30%+10%=40%

100%-40%=60%

254*0.60=152.4

Answer:

angle HMS = 62 degrees

x = 13 degrees

AT = 28

Step-by-step explanation:

angle SHM and angle HMS are both inside the triangle SMH.

We want to find the angle of HMS. We know that the sum of the angles in the triangle adds up to 180 degrees. There are two angles that we already know.

Angle SHM = 28 (given)

Angle HSM = 90 (because it is a right angle which is always 90 degrees, right angles are formed at two perpendicular lines)

Angle HMS = x (we let angle HMS be a variable as we don't know the value for it)

x + 90 + 28 = 180

x = 62 ddegrees

HMS is 62 degrees

TSA is a right angle in triangle AST because it is formed by two perpendicular lines. Right angles always equal 90 degrees.

10x - 40 = 90

10x = 130

x = 13 degrees

AT and HT are both congruent sides. We know this because the figure we are given is a kite. In a kite, we have two pairs of sides that are congruent to each other.  HT is congruent to AT while HM is congruent to AM.

So,

8x - 4 = 2x + 20

Subtraact 2 x from both sides

6x - 4 = 20

Add 4 to both sides

6x = 24

Divide 6 on both sides.

x = 4

Plug x back to AT.

AT = 2(4) + 20 = 28

Answer:

A is 3 x 3 = 9 so thats one multiple and the ones that have the same put in the middle

Step-by-step explanation:

Answer:

20%

0.5

Step-by-step explanation:

There are 20 margins, so you have to count how many are 6.0 or higher. There are 4 margins that fit this so you divide the 4 margins by 20, then multiply the quotient by 100. That's how you get 20%.

The most common time was 0.5.

Answer:

3.  Object C.

Step-by-step explanation:

The inertia of an object is the measure of the force required to set it in motion.  For two objects to have the same motion, the one with the greater mass will require a proportionately greater force to achieve the same motion.

Object C, with a mass of 1,250,000 grams (1,250 kg) will have the greatest inertia.

Answer:

i do not understand how you wrote this please explain better

Step-by-step explanation:

Answer:

Option 3 (left object volume = right object volume)

For explanation:

The volume of a slanted cylinder is nothing but the same volume as the volume of the right circular cylinder of the same height

I hope my answer helps you.

Answer:

Below in bold.

Step-by-step explanation:

x /18 = 12/10

10x = 18*12

x = 216/ 10

= 21.6.

10/w = 18/24

10/w =  3/4

3w = 40

w = 40/3 =  13 33   to the neaest hundredth.

Answer:

45% of the school because some will sign up

Answer:

$6.00 (Six dollars)

Step-by-step explanation:

Two bags of cookies = $6 (2 x $3)

One pie = $8

$6 + $8 = $14

$20-$14 = $6

Ms. O'hara should receive $6 in change.

Answer:

There is no table, so I'll just calculate the theoretical.

125/5=25.

So, 20% to get a card with the number 3

Answer:

she needs 96 in the fifth quiz

O √2

O π

O √10

✔ O √16

rational numbers are decimals, whole numbers, fractions.

Answer:

Step-by-step explanation:

the answer for 5(x – 4) = 2(x + 5)


is x=10

your welcome!

Answer:

x = 10

Step-by-step explanation:

5(x – 4) = 2(x + 5)               DISTRIBUTE

5x - 20 = 2x + 10                COMBINE LIKE TERMS

3x = 30                               ISOLATE X

x = 10                                  FINAL ANSWER

I hope this helps!

Answer:

93 will the answer

Step-by-step explanation:

yes htey are good

Answer:

OC is correct

Step-by-step explanation:

The greater answer is always gonna be the closest one to zero on the number line.

Hopefully this helps!

We will see that the lateral surface area of the cone is 14 square inches.

We know that for a cone of height H and radius R, the lateral surface of the cone is:

S = 3.14*R*H

In this case, we know that eh height is 3 + 5/8 inches, and the diameter is 2 + 1/2 inches. Remember that the diameter is twice the radius, then:

R = (2 + 1/2) in = (1 + 1/4) in

Replacing that on the surface equation, we will get:

S = 3.14*( (1 + 1/4) in)*(3 + 5/8)in = 14 in^2

If you want to learn more about areas, you can read:

https://brainly.com/question/24487155

Answer:

it's 15

Step-by-step explanation:

guy above was close

Answer:

see explanation↓

Step-by-step explanation:

(a)

[tex](3x+2)-(x+5)=3x+2-x-5[/tex]

[tex](3x+2)-(x+5)=2x-3[/tex]

ANSWER: Linear binomial

(b)

[tex](3x+8)+(4x^{2}-x)=3x+8+4x^{2}-x[/tex]

[tex](3x+8)+(4x^{2}-x)=4x^{2} +2x+8[/tex]

ANSWER: Quadratic trinomial

(c)

[tex](x^{2}+7x)-(x^{2}+5)=x^{2}+7x-x^{2}-5[/tex]

[tex](x^2+7x)-(x^2+5)=7x-5[/tex]

ANSWER: Linear binomial

(d)

[tex](2x+8)+(3x^2-2)=2x+8+3x^2-2[/tex]

[tex](2x+8)+(3x^2-2)=3x^2+2x+6[/tex]

ANSWER: Quadratic trinomial

(e)

[tex](x^2+5x-2)+(8-5x)=x^2+5x-2+8-5x[/tex]

[tex](x^2+5x-2)+(8-5x)=x^2+6[/tex]

ANSWER: Quadratic binomial



Answer:

B. the area of a rectangle with side lengths 1.40 and x

Step-by-step explanation:

To find the area of a rectangle, multiply the length by the width.

If 1.40 is the length, x is the width.

1.40×x=1.40x

So B is the correct answer.

Answer:

2a+7b+4

Step-by-step explanation:

collect like terms:

4a-2a=2a

8-4=4

then put the equation back together

Answer:

10-3x

Step-by-step explanation:

let the number=x

thrice the number becomes 3x