grade level 10 geometry

Answer:

-11 for the first one and 0 for the second one

Step-by-step explanation:

Answer:

f(3)=12 should be the answer

Step-by-step explanation:

replace x with 3 and solve

Answer:

14.40

Step-by-step explanation:

100%-> 18

100-20=80

80%-> 14.40

Answer: Step 3 was Gabi's mistake

The solution of the Gabi's equation is m = 28. the Gabi's mistake was division in step 3.

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

Step 1:  Distribute

0.1(0.5m + 6) = 2

(0.1 * 0.5m) + (0.1 * 6) = 2

0.05m + 0.6 = 2

Step 2:  Subtract 0.6 from both sides

0.05m + 0.6 - 0.6 = 2 - 0.6

0.05m = 1.4

Step 3:  Divide both sides by 0.05

0.05m / 0.05

= 1.4 / 0.05

m = 28

Hence, the solution of the Gabi's equation is m = 28. the Gabi's mistake was division in step 3.

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Answer:

add four to both sides of the equation

Step-by-step explanation:

x=4+4

x=8

Answer: 5 + 5w

Step-by-step explanation:

We can use the variable x to describe each additional hour, although the vairable can be substituted for any other vairable.

We know that the main cost for one hour is $5, and that each additional hour will cost $5.

Therefore, the equation to reflect this situation would be 5 + 5w, because the first 5 represents the first hour, and the 5w represents how much each hour costs. If you rent two extra hours, then the cost would end up being 15, because the equation would become: 5 + (5x2) = 15.

The equation is 5 + 5w. Hope this helps, and good luck!

Answer:

A

Step-by-step explanation:

4/CD=CD/5

CD^2=20

CD=sq rt 20=2sq rt 5

Answer is 3

Step-by-step explanation:

first what you do is you rearrange the numbers so the eqaution is -2x+4=-2

SO what you do is (4) - 4 to cancel it out then you do the same thing on the other side so (-2)-4=-6 so the equation now is -2x=-6 then you divide -2 to cancel it out and you do the same thing -6 divide by -2 is 3 so the answer is 3

Answer:

x=1

y=1

Step-by-step explanation:

-3x+4=3x-2

-3x+3x+4=3x+3x-2

4=6x-2

4+2=6x-2+2

6=6x

x=1

y=3(1)-2

y=1

Answer:

3 terms

Step-by-step explanation:

Answer:

height = 13.75 feet

Step-by-step explanation:

use the Pythagorean theorem

hypotenuse^2 =base^2 + height^2

15^2 = 6^2+height^2

225 = 36 + height^2

189 = height^2

height = 13.75 feet

Answer:

Step-by-step explanation:

Answer:

It would take 12.1 years.

Step-by-step explanation:

We are given with $3000 invested in bank pays 6.75% interest compounded semi annually to the nearest 10th. We are asked to find the number of years the bank reaches $6700.

Let's use the compound interest formula.

[tex]A= P(1+\frac{r}{n}) ^{nt}[/tex]

We know A=6700

P=3000

r =0.0675

n=2(because compounded semiannually)

t =?( we need to find it)

Plug in the known values into the formula.

[tex]6700=3000(1+\frac{0.0675}{2}) ^{2*t}[/tex]

Simplify and solve for 't'

Divide both sides by 3000

[tex]2.23333= (1.03375)^{2t}[/tex]

Take log on both sides

[tex]log(2.23333) = 2t log(1.03375)[/tex]

Divide both sides by log(1.03375)

24.2067=2t

Divide both sides by 2.

t=12.10...

To round to nearest 10th, we get t=12.1 years.

Answer:

The answer is 648

Because the formula of quadratic equations is y = ax² + bx + c where you can see the only equation with the power of two is equation B

Equation B into quadratic equation

5x² + x = y - 4

y = 5x² + x +4

Function 5x² + x = y - 4 is quadratic .

Hence option B is correct .

Given , Linear and Quadratic function.

Standard form of quadratic function : y = ax² + bx +c

a = coefficient of x² .

b = coefficient of x .

c = constant .

Rearranging the function,

5x² + x = y - 4

y = 5x² + x - 4

Comparing the equation with standard form,

a = 5

b = 1

c = -4

Hence option B is correct .

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Answer:

y = 110

Step-by-step explanation:

ABCD is a cyclic quadrilateral ( its vertices are on the circle )

The opposite angles are supplementary, sum to 180° , then

∠ C = 180° - 70° = 110° , thus

y = 110

Answer:

168in2

Step-by-step explanation:

I hope this helps...

Answer:

A = 192 in²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = [tex]\frac{1}{2}[/tex] h (b₁ + b₂ )

where h is the perpendicular height and b₁, b₂ the parallel bases

Here h = 12, b₁ = AB = 14 and b₂ = DC = 2 + 14 + 2 = 18, then

A = [tex]\frac{1}{2}[/tex] × 12 × (14 + 18) = 6 × 32 = 192 in²

Answer:

Step-by-step explanation:

Starting with ΔABC, draw the dilation image of the triangle with a center at the origin and a scale factor of two. Notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). Dilations involve multiplication! Dilation with scale factor 2, multiply by 2

Answer:

Yea wut she said ._. above me...

Step-by-step explanation:

Answer:

y^2-(28/7)

or, y^2-(4)

Answer:

Step-by-step explanation:

Answer:

I NEED BRAINLIST URGENTLY

Your answer is x=2

Hope that this is helpful. Tap the crown button, Mark my answer as............. BRAINLIST......... Like & Follow me to get more answer.

Answer:

All real numbers would be your solution to this question. <3

Step-by-step explanation:

Answer:

all real numbers are solution

Step-by-step explanation:

The robot does not meet both of Fernando's expectations.

A represents the number of minutes the robot filters air.

W represents the number of minutes the robot filters water.

Inequality is a statement stating two expressions are not equal.

Expectation 1:

21A + 14W > 512

Given A=15 minutes

W=5 minutes

So, 21A + 14W =21*15 +14*5 =370

370<512

So, the robot does not meet Fernando's first expectation.

Expectation 2:

0.36 A + 0.6W < 9

A=15 minutes

W=5 minutes

So, 0.36 A + 0.6W =0.36*15+0.6*5 = 8.4

8.4<9

So, the robot meets Fernando's second expectation.

Hence, the robot does not meet both of Fernando's expectations.

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Answer:

1. B

2. A

3. I

4. F

Step-by-step explanation:

1. 8x +15 = 7

minus 15 from 7

8x = -8

divide by 8

x=-1

2. 12x -42 = 18

add 42

12 x = 60

divide by 12

x=5

3. 15 +8x = 47

minus 15

8x = 32

divide by 8

x=4

4. 17 -4x =33

minus 17

-4x = 16

divide by -4

x= -4

Answer:

(3x+1) (x-2)

Step-by-step explanation:

hope this helps!!

Answer:

(3x+1)(x-2)

Step-by-step explanation:

3x² - 5x - 2

= (3x² + x) + (-6x -2)

= x(3x+1) -2(3x+1)

= (x-2)(3x+1)

Answer:

p=19

Step-by-step explanation:

since the instructions say that ([tex]x^{13}[/tex])([tex]x^{6}[/tex]) is equivalent to [tex]x^{p}[/tex], we can make the equation:

([tex]x^{13}[/tex])([tex]x^{6}[/tex])=[tex]x^{p}[/tex]

now, apply the laws of exponents; [tex]a^{m} * a^{n} =a^{m+n}[/tex]

in that case, since we're multiplying x to the 13th power by x to the 6th, the result is [tex]x^{13+6}[/tex], which is [tex]x^{19}[/tex]

the equation now:

[tex]x^{19}[/tex]=[tex]x^{p}[/tex]

since the exponents are at the same base, we can solve the equation

19=p

so p is 19

hope this helps :)

Answer:

4/6 chance

Step-by-step explanation:

there is a 4/6 probability this will happen