Help please no links please

Answer:

B. 13

Step-by-step explanation:

Let's solve your equation step-by-step.

7√x−4−6=15

Step 1: Add 6 to both sides.

7√x−4−6+6=15+6

7√x−4=21

Step 2: Divide both sides by 7.

7√x−4

7

=

21

7

√x−4=3

Step 3: Solve Square Root.

√x−4=3

x−4=32(Square both sides)

x−4=9

x−4+4=9+4(Add 4 to both sides)

x=13

Answer:

x = 13

Step-by-step explanation:

[tex]7 \sqrt{x - 4} = 15 + 6 \\ 7 \sqrt{x - 4} = 21 \\ \sqrt{x - 4 =} = 3 \\ x - 4 = 9 \\ x = 13[/tex]

Answer:

1. y=5 and x=-5

2. y=2 and x=-4

Step-by-step explanation:

1.y=-5x-19

y=-6x-24

since both equations are equal to y, they are also equal to eachother

-5x-19=-6x-24

addition P.O.E.

x-19=-24

addition P.O.E.

x=-5

substitute x into one equation

y=-5*-5-19

y=6

2. y=-6x-22

y=-3x-10

since both equations are equal to y, they are also equal to eachother

-6x-22=-3x-10

addition P.O.E.

-22=3x-10

addition P.O.E.

-12=3x

division P.O.E.

-4=x

substitute x into one equation

y=-3*-4-10

y=2

Answer:

200

Step-by-step explanation:

good luck :)

Answer:

113.44

Step-by-step explanation:

It can emulate the BIOS and many games at very slow speeds but is sometimes faster than Cxbx with acceptable graphics

Answer:

the answer is 36centameters

Answer:

70.06

Mean score = 70

Step-by-step explanation:

16% of students scored higher than 80 on a recent normally distributed exam the standard deviation is 10 what is the mean

For a normal distribution :

Zscore = (x - mean) / standard deviation

x = score

P(Z > 80) = 16% = 0.16 ; corresponding Zscore = 0.994 (Z probability calculator)

Therefore ;

0.994 = (80 - mean) / 10

0.994 * 10 = 80 - mean

9.94 = 80 - mean

Mean = 80 - 9.94

Mean = 70.06

Hence, the mean score = 70.06 = 70

Answer:

86.6666666667

Step-by-step explanation:

Because one of Tom's car wheel weighs 21 2/3 pounds, you would have to multiply 21 2/3 pounds by 4 to get the amount of pounds that all the tires weigh; which makes the answer:86.6666666667

Answer:

86 2/3

Step-by-step explanation:

you multiply 21 × 4 and get 84

multiply 2 × 4 and get 8

Divide 8/3 and get 2 2/3

add 2 to 84

and leave the 2/3

Answer:

(0,1) is the answer

Step-by-step explanation:

hope it helped!!!

Answer:

100:60:80

Step-by-step explanation:

240÷12=20

20×5=100

20×3=60

20×4=80

Answer:

100: 60: 80

Step-by-step explanation:

5/(5+3+4) *240= 100

3/(5+3+4)* 240= 60

4/(5+3+4)* 240= 80

Answer:

-10, square root of 100, square rout of 220, 11.5

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

B is wrong because 5^2 = 25

C is wrong because 5 is not equal to √5

D is wrong because 25 is not √5 but 5^2

Answer:

4 + 4 + 2 = 10

3) 3/10 or 0.3

4) 2/10 = 1/5 or 0.2

5) 4/10 = 2/5 or 0.4

6) 2 + 4 + 0 = 6 so 6/10 = 3/5 or 0.6

i think its this. i hop i helped?

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The question states he wants to show the relationship between the trees ages and the number of apples they produce.

Answer:

B

Step-by-step explanation:

Answer:

-24

Step-by-step explanation:

i dont think this is right answer

hope this helps via substitution process

Answer:

3.0833

Step-by-step explanation:

i dont know how many 3's

Answer: 37/12

Step-by-step explanation: First you must turn 2 1/6 into a improper fraction, so 2x6 + 1 will get you 13 as the numerator and the denominator will be 6 so now we have 13/6 + 11/12. Now we must turn the denominator for 13/6 into 12 so, 13x2/6x2 so it is 26/12 so now the equation is 26/12 + 11/12 is 37/12.

Answer:

16 4/5

Step-by-step explanation:

1. Divide 5 3/5 by 2 (2 4/5)

2. Multiply 2 4/5 by 2 and multiply 5 3/5 by 2 (5 3/5) (11 1/5)

3. Add them together (16 4/5)

Answer:

I thinks

Step-by-step explanation:

Answer:

5.53 * 10^-1

Step-by-step explanation:

[(6.8 * 10^3) - (7.2 * 10^2)] ÷ 1.1 * 10^4

(6800 - 720) ÷ 11000

6080 ÷ 11000

6.08 * 10^3 ÷ 1.1 * 10^4

(6.08 ÷ 1.1) * 10^3-4

5.527 * 10^-1

= 5.53 * 10^-1

Answer:

The equation is

2.7x - 5.4

Step-by-step explanation:

Gas is priced at $2.70 per gallon. My gas tank has 2 gallons currently in the tank. Write an equation to how much

the money I will spend to fill up my tank.

Let the total gallons that would fill your tank = x

The tank currently has 2 gallons

A gallon =>$2.70

Therefore, our equation is

=(x - 2) × 2.70

= 2.7x - 5.4

Answer:

the product of 32.56 and 1.4 = 45.584

Step-by-step explanation:

When you multiply decimals, the decimal point is placed in the product so that the number of decimal places in the product is the sum of the decimal places in the factors.

hope i helped:)

Answer:

Your answer would be 32.56

Step-by-step explanation:

We know that when you multiply decimals the number decimals placed is the product or sum of the decimals placed in there own factors.

my dad helped with this hope it helps you

Answer:

b

Step-by-step explanation:

i did that one in class it was right.

Answer:

there is no picture of what i need to solve

Step-by-step explanation:

Answer:

Step-by-step explanation:

(h + 6) - 2    Here we find the sum of h and 6, and from that sum we subtract 2.

This simplifies to h + 4.

Answer:

h+4

Step-by-step explanation:

h+6-2=h+4

Answer:

B is the answer

Step-by-step explanation:

(√(1.5³ * 1.5⁷))/1.5²

√ 1.5 ^(3+7) ÷ 1.5²

√1.5^10 ÷ 1.5²

1.5⁵ ÷ 1.5²

1.5^(5-2)

1.5³

Answer:

I think it is c I hope it helps have a good day

Answer: 803.84 inch²

Step-by-step explanation:

The lid will take the appearance of a circle so the area of the lid is the same as the area of a circle:

Area of a circle = π * radius²

The circumference of a circle is:

= π * diameter

Looking at the above, the diameter is 32inches because this is the figure to be multiplied with π = 3.14 to find the circumference.

Since diameter is 32, radius will be:

= 32 / 2

= 16 inches

Area = 3.14 * 16 * 16

= 803.84 inch²

Answer:

st=22

m<r=68

m<t=22

Step-by-step explanation:

Side rt = 24

Side sr = 9

Side st = 22.2486

Angle ∠s = 90° = 1.5708 rad = π/2

Angle ∠t = 22.024° = 22°1'28" = 0.3844 rad

Angle ∠r = 67.976° = 67°58'32" = 1.1864 rad