help!! ________________

Answer:

x = -2

y = 9

Step-by-step explanation:

y = -3x + 3

y = 5x + 19

We can put one y as another:

-3x + 3 = 5x + 19

-8x = 16

x = -2

And now let's check using x = -2

y = (-3 * -2) + 3

y = (5 * -2) + 19

y = 6 + 3

y = -10 + 19

y = 9

y = 9

Answer:

x(x-4)(x+8)

Step-by-step explanation:

Factor.

x(x^2+4x-32)

x(x-4)(x+8)

Answer:

[tex]Amount = 66ft^3[/tex]

Step-by-step explanation:

No attachment given, but the question can still be solved.

Given

Cuboid 1

[tex]Length = 1ft[/tex]      [tex]Width = 1ft[/tex]      [tex]Height = 2ft[/tex]

Cuboid 2

[tex]Length = Width = Height = 4ft[/tex]

Required

How much plaster can fit in

To do this, we simply calculate the volume of the shape

For cuboid 1

[tex]Volume = Length * Width * Height[/tex]

[tex]V_1 = 1 * 1 * 2[/tex]

[tex]V_1 = 2ft^3[/tex]

For cuboid 2

[tex]V_2 = 4 * 4 * 4[/tex]

[tex]V_2 = 64ft^3[/tex]

Amount of plaster is then calculated as:

[tex]Amount = V_1 + V_2[/tex]

[tex]Amount = 2ft^3 + 64ft^3[/tex]

[tex]Amount = 66ft^3[/tex]

Answer: 0.04

Step-by-step explanation:

The measurement error is calculated as:

= Error / Ideal value

= (2.5 - 2.4) / 2.5

= 0.1/2.5

= 0.04

Therefore, the correct option is D.

Answer:

48.3

Step-by-step explanation:

→ See what side is not given

Opposite

→ Find a triangle with out an O in it

Cos = Adjacent / Hypotenuse

→ Make what you want to find the subject

Hypotenuse = Adjacent / Cos

→ Substitute the numbers into the formula

41 / cos (32) = 48.3

Answer:

a) 6 cups

Step-by-step explanation:

We can use a ratio for this:

sugar : flour

2 : 3

x : 9

2       3

---  =  ---

x        9

Cross multiply:

2 (9) = 3x

18 = 3x

6 = x

x = 6

To double-check, you can plug the value back into the ratio and make them fractions, then simplify to see if it gets the original amount. Here's what I'm talking about:

2 : 3

x : 9     ======>     6 : 9

[tex]\frac{6}{9} \frac{/3}{/3} = \frac{2}{3}[/tex]

Answer:

Step-by-step explanation:

3n = 3² × 8                     3² = 3 × 3

n × 3 = 3 × 3 × 8            notice a times 3 on both sides of the equation

                                      divide both sides by 3

n =  3 × 8      

n = 24    <---------------- FINAL ANSWER

Answer:

[tex]\Huge\boxed{C.68}[/tex]

Step-by-step explanation:

Hello There!

The exterior angle of a triangle rule is that the exterior angle  is equal to the sum of the interior opposite angles

So essentially what I'm saying is that

z = 29 + 39

29+39=68 therefore the measure of angle z is 68

Answer:

17.2 cm

Step-by-step explanation: Each side would be 19 cm since a triangle has three sides. Next, we will use pythagorean theory. Since the equation would be a^2 + b^2 = c^2. Since 19^2 is 361 and is getting subtracted by 64 (we get it because at the bottom, we have to split it. also, 8 squared is 64). Then we get 297, which the base root with one number behind the decimal would be 17.2 cm.

Answer:

tennis and chess

Step-by-step explanation:

Answer:306 = 80-q is the answer

Answer:

81

Step-by-step explanation:

Answer:

Answer:

it's only the last two

Step-by-step explanation:

3x + 2 = 25

3x + 2 - 2 = 3x

25 - 2 = 23

3x = 23

3x / 3 = x

23 / 3 = 7 2/3

x = 7 2/3 not this one

x/3 + 7 = 8

x/3 + 7 - 7 = x/3

8 - 7 = 1

x/3 = 1

x/3 * 3 = x

1 * 3 = 3

x = 3 not this one

4 + 5x = 18

4 + 5x - 4 = 5x

18 - 4 = 14

5x = 14

5x / 5 = x

14 / 5 = 2 4/5 not this one

24 - 2x = 13

24 - 2x - 24 = -2x

13 - 24 = -11

-2x = -11

-2x / -2 = x

-11 / -2 = 5 1/2 not this one

81/x - 3 = 6

81x - 3 + 3 = 81/x

6 + 3 = 9

81/x = 9

81/x * x = 81

9 * x = 9x

81 = 9x

81 / 9 = 9

9x / 9 = x

9 = x this one

2x - 3 = 15

2x - 3 + 3 = 2x

15 + 3 = 18

2x = 18

2x / 2 = x

18 / 2 = 9

x = 9 this one

Answer:

Option D

Step-by-step explanation:

By applying Pythagoras theorem in triangle ABC,

(Hypotenuse)²= (Leg 1)² + (Leg 2)²

AC² = AB² + BC²

AC² = (40 - 15)² + (80 - 75)²

AC² = (25)² + 5²

AC² = 650

AC = √650

AC = 25.495 ft

Since, area of a rectangle = Length × Width

Therefore, area of the garden = 25.495 × 6

                                                  = 152.97

                                                  ≈ 153 ft²

Since, 150 is very close to 153, approximate area of the rectangular garden is 150 ft².

Option D is the answer.

Answer:

0.28277

I got this by plugging in 0.2512 for "A" ( A = π r² ) Then I solved the rest ( divide both sides by pie, then taking the square root from that.

Step-by-step explanation:

Cos Milky Said it.

Given:

The expression is:

[tex](x^2y-3)^0+x^{\frac{1}{3}}-(4x)^{\frac{1}{2}}[/tex]

To find:

The value of the given expression when [tex]x=64[/tex] and [tex]y=27[/tex].

Solution:

We have,

[tex](x^2y-3)^0+x^{\frac{1}{3}}-(4x)^{\frac{1}{2}}[/tex]

Putting [tex]x=64[/tex] and [tex]y=27[/tex], we get

[tex]=((64)^2(27)-3)^0+(64)^{\frac{1}{3}}-(4(64))^{\frac{1}{2}}[/tex]

It can be written as

[tex]=((64)^2(27)-3)^0+(4^3)^{\frac{1}{3}}-(4)^{\frac{1}{2}}(64)^{\frac{1}{2}}[/tex]

[tex]=1+4-2(8)[/tex]           [tex][\because a^0=1,a\neq 0][/tex]

[tex]=5-16[/tex]

[tex]=-11[/tex]

Therefore, the value of the given expression [tex]-11[/tex] when [tex]x=64[/tex] and [tex]y=27[/tex].

Answer:

hi here it is

Step-by-step explanation:

the area is squared

Answer:

the formula for a triangle is height*base/2

plug it in and you get (3*6)/2=18/2=9

so, the answer is 9 mm2

Answer:

24.5

Step-by-step explanation:

the radius is half of a diameter

so the radius is 3.9

24.5 = 2πr= 2 * π * 3.9 ≈ 24.504

Answer:

vas dir que no sóc jo, sóc una mica, però vull que tornem a casa i ens ocupem de tots els altres

Answer:

d. a power analysis; tells the researcher the number of participants needed for trustworthy results.

Step-by-step explanation:

A control experiment can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same situation by the scientist without involving or using the suspected condition.

A hypothesis is considered to be tentative or an educated guess and can be defined as a testable explanation for an observation or a scientific problem. An example of a hypothesis is saying, Corona virus is caused by the introduction of the "5G" technology.

This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.

Before hypothesis testing and at the beginning of a study, a researcher is advised to conduct a power analysis because it tells the researcher the number of participants needed for trustworthy results.

A power analysis should always be conducted before the collection of data because it will help you as a researcher to determine the smallest sample size that's accurate enough to detect the effect of a specific test at the desired statistical significance level.

Answer:

10

Step-by-step explanation:

TV=TL-VL. TL=5x+3 and VL=5x-7. (5x+3)-(5x-7)=5x+3-5x+7=3+7=10. TV=10.

Answer: 10?

Step-by-step explanation:

Answer:B. Varsity has a larger IQR

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

Hey there, the answer 108 hope this helps!

Step-by-step explanation:

Answer:

9.25 + 25.75p ≤ 245

Step-by-step explanation:

I didn't see any inequality options to select from . . .

Answer:

c

Step-by-step explanation:

I did this test thing