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2 years ago

It is in the picture.

Mathematics

1 answer:

MrRissso [65]2 years ago

4 0

Answer:

x = 10

y = 20

Step-by-step explanation:

7x + 90 + 20 = 180

7x = 70

x = 10

5x + 2y = 90

50 + 2y = 90

2y = 40

y = 20

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The following table shows the values of y for different values of x:

solmaris [256]

Answer:

Option B. It represents a nonlinear function because its points are not on a straight line.

Step-by-step explanation:

Let

$A(0,0),B(1,1),C(2,4)$

we know that

If point A,B and C are on a straight line

then

The slope of AB must be equal to the slope of AC

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Find the slope AB

$A(0,0),B(1,1)$

substitute in the formula

$m_A_B=\frac{1-0}{1-0}=1$

Find the slope AC

$A(0,0),C(2,4)$

substitute in the formula

$m_A_C=\frac{4-0}{2-0}=2$

$m_A_B\neq m_A_C$

Points A, B and C are not on a straight line

therefore

It represents a nonlinear function because its points are not on a straight line

8 0

3 years ago

Read 2 more answers

B)Given 0º < x < 360° , solve for x in: 2 sin (2x - 30°) = √3.

Rainbow [258]

Answer:

180°

because x is the mid pf 0° and 360°

3 0

3 years ago

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Temka [501]

Depends on what it is, i'd personally love to at any point

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3 years ago

A normal distribution has a mean of 85.3 and a standard deviation of 4.85. Find the data value corresponding to the value of z g

Mazyrski [523]

Answer: 87.9675

Step-by-step explanation:

Formula for z:

$z=\dfrac{x-\mu}{\sigma}$ , where x= data value corresponding to z, $\mu$ = mean, $\sigma$ = standrad deviation.

Given: $\mu$ =85.3, $\sigma$ =4.85, z=0.55

To find : x

$0.55=\dfrac{x-85.3}{4.85}\\\\\Rightarrow\ 0.55\times4.85=x-85.3\\\\\Rightarrow\ 2.6675=x-85.3\\\\\Rightarrow\ x=85.3+2.6675\\\\\Rightarrow\ x=87.9675$

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6 0

3 years ago

Elizabeth has $35.50 to spend on Math tutoring. Each session costs $9 plus a one- time registration fee of $7.45. Let the variab

Valentin [98]

Answer:

2 tutoring sessions

Step-by-step explanation:

do 9 + 7.45 = 16.45 x 2 = 32.9. You can’t add another 16.45 otherwise it’d go over 35.50

8 0

3 years ago

Read 2 more answers