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Stells [14]
2 years ago
10

Please help me i dont know how to do this nor do i remember

Mathematics
2 answers:
Oxana [17]2 years ago
4 0
2.
That equation is slope intercept form and slope intercept form is y=mx+b. The m in slope intercept form stands for the slope so m=2 which means the slope is two.
Nataly [62]2 years ago
3 0

Answer:

2

Step-by-step explanation:

The equation for a line is:

y=mx+b

Where m is the slope, b is the y-intercept, and x and y are the x and y coordinates.

The equation given to us is:

y=2x+3

Therefore 2 is the slope

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Please help with 19, 20, 21 and 22<br> 15 points!<br>First to answer gets brainliest
irakobra [83]
Well 19 would be 399 and for 20. the discount is 12.87 and the price of it after the discount is 26.13
7 0
3 years ago
Mrs. Powell has $800 invested in stocks and $500 invested in a Certificate of Deposit. The CD has an interest rate twice as grea
Mashutka [201]
Let's use the variable "r" to represent the investment rate of the stocks:
2r(500) + r(800) = 45
1000r + 800r = 45
1800r = 45
r = 0.025
2r = 0.05
The $500 is invested at 5%
7 0
3 years ago
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What is the simplest form of the product cube root4x^2*cube root8x^7
Illusion [34]

Answer:

f(x) =  2^{\frac{5}{3} }x^{3} is the simplest expression

Step-by-step explanation:

We are given an expression and we are supposed to find the simplest form of the given expression.

The given expression is

f(x) = \sqrt[3]{4x^{2} } \times \sqrt[3]{8x^{7} }

Since the cube root is common we can multiply the quotient inside the radical sign.

f(x) = \sqrt[3]{32x^{(2+7)} }

     = \sqrt[3]{32x^{9} }

     = 2^{\frac{5}{3} }\times x^{\frac{9}{3} }

     = 2^{\frac{5}{3} }x^{3}

f(x) =  2^{\frac{5}{3} }x^{3} is the simplest expression

6 0
3 years ago
Find each measurement indicated round your answers to the nearest tenth. Part 1d. NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW
valkas [14]

Answer:

see explanation

Step-by-step explanation:

Using the Sine rule in all 3 questions

(1)

\frac{a}{sinA} = \frac{b}{sinB} , substitute values , firstly calculating ∠ B

[ ∠ B = 180° - (78 + 49)° = 180° - 127° = 53° ]

\frac{a}{sin78} = \frac{18}{sin53} ( cross- multiply )

a sin53° = 18 sin78° ( divide both sides by sin53° )

a = \frac{18sin78}{sin53} ≈ 22.0 ( to the nearest tenth )

(3)

\frac{c}{sinC} = \frac{a}{sinA} , substitute values

\frac{35}{sinC} = \frac{45}{sin134} ( cross- multiply )

45 sinC = 35 sin134° ( divide both sides by 35 )

sinC = \frac{35sin134}{45} , then

∠ C = sin^{-1} ( \frac{35sin134}{45} ) ≈ 34.0° ( to the nearest tenth )

(5)

Calculate the measure of ∠ B

∠ B = 180° - (38 + 92)° = 180° - 130° = 50°

\frac{a}{sinA} = \frac{b}{sinB} , substitute values

\frac{BC}{sin38} = \frac{10}{sin50} ( cross- multiply )

BC sin50° = 10 sin38° ( divide both sides by sin50° )

BC = \frac{10sin38}{sin50} ≈ 8.0 ( to the nearest tenth )

3 0
3 years ago
Is the following relation a function?
rjkz [21]
Because for each x-value in the domain of this relationship, except for 0, there is more than one y-value, this is NOT a function.  
3 0
3 years ago
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