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3 years ago

Tell whether the ordered pair is a solution of the linear system (-24,-10)

Mathematics

1 answer:

Dovator [93]3 years ago

8 0

Answer:

IT is not

Step-by-step explanation:

Let's replace. If it's a solution, it means that BOTH equations has to be true.

$\left \{ {{-10=-5(-24)+22} \atop {-2(-24) +6(-10)=-12} \right.$

Now, the second equations seems good - $48-60 =-12$ indeed.

First alas isn't. RHS is 142, which is totally not the same as -10.

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A woman is buying bags of fruits and vegetables.

WITCHER [35]

Answer:

= $45

Step-by-step explanation:

$2.25 = 1 pound

$2.25 x 5 = 5 pounds

$11.25 = 5 pounds

$11.25 x 4 = 4 bags

$45 = 4 bags

Avocado out!!!!!!!!

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5 0

3 years ago

The GPA of accounting students in a university is known to be normally distributed. A random sample of 20 accounting students re

Vladimir79 [104]

Answer:

The 95% of confidence intervals

(2.84 ,2.99)

Step-by-step explanation:

A random sample of 20 accounting students results in a mean of 2.92 and a standard deviation of 0.16

given small sample size n =20

sample mean x⁻ =2.92

sample standard deviation 'S' =0.16

level of significance ∝ = 0.95

The 95% of confidence intervals

$x^{-} ± t_{\alpha } \frac{S}{\sqrt{n} }$

the degrees of freedom γ=n-1 =20-1=19

t-table 2.093

$(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} },x^{-} + t_{\alpha } \frac{S}{\sqrt{n} })$

$(2.92 - 2.093(\frac{0.16}{\sqrt{20} } ,2.92+2.093(\frac{0.16}{\sqrt{20} } )$

(2.92-0.0748,2.92+0.0748)

(2.84 ,2.99)

Therefore the 95% of confidence intervals

(2.84 ,2.99)

4 0

3 years ago

Which is equivalent to (4 44)??

Aleks [24]

(4 + 44) = 48 . . . .

6 0

3 years ago

WILL MARK BRAINLIEST IF CORRECT ANSWER! HOW MANY SOLUTIONS???

elena-14-01-66 [18.8K]

The answer is 1 solution which is x=1

6 0

3 years ago

Identify the percent of change as increase or decrease then find the percent of change round to the nearest tenth of a percent(

harkovskaia [24]

Decrease percentage = (120-52)/120 ×100 = 68/120 =56.66..%

On rounding off,

Percentage = 57%

HOPE THIS WILL HELP YOU

3 0

3 years ago