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3 years ago

PLEASE HELP ME I REALLY NEED HELP NOT GOOD AT AREA PLEASE HURRY

Mathematics

1 answer:

Gnoma [55]3 years ago

8 0

1: 132in^2

2: 275units^2

3: 139.5in^2

4: 168ft^2

5: 228ft^2

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The sum of two numbers is 49 and the difference between these two numbers is 9. What are these two numbers?Shown working out pl

8_murik_8 [283]

Let numbers be x and y

ATQ

x+y=49---(1)

x-y=9---(2)

Adding both

$\\ \sf\longmapsto 2x=58$

$\\ \sf\longmapsto x=\dfrac{58}{2}$

$\\ \sf\longmapsto x=29$

Now putting value in eq(2)

$\\ \sf\longmapsto x-y=9$

$\\ \sf\longmapsto 29-9=y$

$\\ \sf\longmapsto y=20$

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3 years ago

What is the slope of the line?<br> y + 5 = 2(x + 1)

VikaD [51]

Answer:

The slope is 2

Step-by-step explanation:

Equation of line is y = mx + b

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3 years ago

Please help I’m on the middle of an exam<br><br> Use the diagram of ABCD to find x.

garri49 [273]

This is like property of a parallelogram you have to do is basically follow its properties which is opposite sides are congruent

so we solve like this

$x+3=2x-5$

subtract -3 on each side one is canceled since its equal to zero

and other is -3-5= -8

$x=3x-8$

now subtract -3 on each side

-3x-x is -4 so,

-4x=8

divide its equal to 2

X=2

Hope it helps! have an awesome day you should probably study the properties of parallelogram

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2 years ago

Find the sum of the first 7 terms of the following series, to the nearest integer.

Virty [35]

Answer:

$r = 2.5 \\ sum = \frac{a( {r}^{n - 1} )}{r - 1} \\ = \frac{125( {2.5}^{7 - 1} )}{7 - 1} \\ = \frac{30517.6}{6} \\ = 5086.3$

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3 years ago

Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is t

Musya8 [376]

Answer:

probability of a false positive test result = 0.010

The non-drug user will suffer from the result since it is positive

Step-by-step explanation:

The probability that the test result is a false positive

total number of cases studied (n) = 38 + 12 + 19 + 29 = 98

number of false positive cases ( x ) = 1

probability of false positive result = x / n = 1/98 = 0.010

The non-drug user will suffer from the result since it is positive

6 0

2 years ago