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3 years ago

3) You order two pizzas for you and your friends. The total comes to $24.50. The

Mathematics

2 answers:

stellarik [79]3 years ago

3 0

27.32 you divide 24.50 and 11.5. Then add what you get from that to 24.50

dangina [55]3 years ago

3 0

I think the answer is $32.78

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ANSWER FAST PLEASE!!!

boyakko [2]

Log₂(6x) - log₂(√x) = 2

log₂[6x/√x] = 2, let's rewrite it in terms of exponent:

(remember : ㏒₂(x) = a (in exponential form) → x = 2ᵃ

6x/√x = 2²

6x/√x = 4, square both sides:
36x²/x = 16 .Simplify:

36x = 16 and x = 16/36 . So x = 4/9

7 0

3 years ago

A pool is filled with 270 270270 cubic meters of water. The base of the pool is 15 m 15 m15, start text, space, m, end text long

Lana71 [14]

Answer:

the height of the water in the pool is 2m

Step-by-step explanation:

This problem bothers on the mensuration of solids.

Given data

Volume of pool v= 270m³

Base length l= 15m

Base width b= 9m

Height h=?

The pool takes the shape of a rectangular prism

The expression for the volume of the pool is

v= l*b*h

Substituting our given data we have

270= 15*9*h

270= 135h

h= 270/135

h= 2

Therefore the height h =2m

3 0

4 years ago

Read 2 more answers

Help! Write the equation of the line parallel to the given line that passes through the given point in slope intercept form! *ig

Kay [80]

First let's get the equation 2x - y = -4 into slope intercept form. To do this first subtract 2x to both sides:

2x - 2x - y = -4 - 2x

0 - y = -4 - 2x

-y = -4 - 2x

Y still isn't completely isolated, it still has the negative attached to it. To get rid of the negative divide both sides by -1

-y / -1 = (-4 - 2x) / -1

y = 4 + 2x

y = 2x + 4

slope intercept formula is:

y = mx + b

m is the slope

b is the y-intercept

For a line that is parallel to y = 2x + 4 and passes through point (2, 5) you will need to have the same slope (2)

This is the formula we know so far for the line parallel to y = 2x + 4:

y = 2x + b

Now we must find b

To do that you must plug in the point the line goes through ( 2, 5) in the x and y of the equation.

5 = 2(2) + b

5 = 4 + b

Now solve for b by subtracting 4 to both sides

1 = b

y = 2x + 1

^^^This line is parallel to 2x - y = -4 and goes through the point (2, 5)

Hope this helped!

~Just a girl in love with Shawn Mendes

5 0

3 years ago

PLEASE HELP, WILL MARK BRAINILEST

Shkiper50 [21]

A because shes buying 4 chocolate bars and X is the amount of fruit snacks shes wanting to buy and its less than or equal to 25

4 0

3 years ago

It has been suggested that night shift-workers show more variability in their output levels than day workers (σ2N > σ2D). Bel

Murljashka [212]

Answer:

Calculated |t |= 7.72 > 2.1314 at 0.05 level of significance

Null hypothesis is rejected

The night shift-workers show more variability in their output levels are greater than day workers

Step-by-step explanation:

Step(i):-

Given first sample size n₁ = 9

Given mean of the first sample x₁⁻ = 520

Given sample variance of the first sample'S²₁' = = 38

Standard deviation of the first sample 'S₁' = √38 =6.16

Given second sample size n₂ = 8

Given mean of the second sample x₂⁻ = 540

Given sample variance of the second sample ( 'S²₂' = 20

Standard deviation of the second sample 'S₂' = √20 = 4.4712

Step(ii):-

Null hypothesis :H₀: σ²₁ =σ²₂

Alternative Hypothesis:H₁: σ²₁ > σ²₂

Test statistic

$t = \frac{x^{-} _{1} - x^{-} _{2} }{\sqrt{\frac{S^2_{1} }{n_{1} }+\frac{S^2_{2} }{n_{2} } } }$

$t = \frac{520 - 540 }{\sqrt{\frac{38 }{9 }+\frac{20 }{8 } } }$

t = - 7.72

|t| = |- 7.72| = 7.72

Degrees of freedom

ν = n₁ + n₂ -2 = 9 +8 -2 = 15

t₀.₀₅ = 2.1314

Final answer:-

Calculated |t |= 7.72 > 2.1314 at 0.05 level of significance

Null hypothesis is rejected

The night shift-workers show more variability in their output levels are greater than day workers

4 0

3 years ago