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3 years ago

9

Which system of equations is represented by the graph?

1 answer:

Alexeev081 [22]3 years ago

5 0

Answer:

the second one

Step-by-step explanation:

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Find the following sets

Irina-Kira [14]

Answer:

Step-by-step explanation:

a) 2,3,4,5,6,7

b)4,6,7

5 0

2 years ago

Solve the system using elimination.<br><br> 2x + 3y = 17<br> x + 5y = 19

ale4655 [162]

$\left\{\begin{array}{ccc}2x+3y=17\\x+5y=19&|\text{multiply both sides by (-2)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}2x+3y=17\\-2x-10y=-38\end{array}\right}\qquad\text{add both sides of equations}\\.\qquad\qquad-7y=-21\qquad\text{divide both sides by (-7)}\\.\qquad\qquad \boxed{y=3}\\\\\\\text{Substitute the value of y to the second equation}\\\\x+5(3)=19\\\\x=15=19\qquad\text{subtract 15 from both sides}\\\\\boxed{x=4}\\\\Answer:\ x=4\ and\ y=3.$

5 0

3 years ago

Changing Bases to Evaluate Logarithms In Exercise, use the change-of-base formula and a calculator to evaluate the logarithm.

Ymorist [56]

Answer:

$\frac{3}{2}$

Step-by-step explanation:

Changing Bases to Evaluate Logarithms

$log_{16}(64)$

Apply change of base formula'

$log_b(a)= \frac{log a}{log b}$

log term should be the numerator and denominator is the log base

$log_{16}(64)$

$log_{16}(a)= \frac{log 64}{log 16}$

64 is 4^3 and 16 is 4^2

$log_{16}(a)= \frac{log 4^3}{log 4^2}$

Move the exponent before log

$\frac{3log 4}{2log 4}$

top and bottom has same log so cancel it out

$\frac{3}{2}$

3 0

3 years ago

Answer to <br> 5 1/4 - ( 3 - 1 1/6 )

ycow [4]

Answer

41/12

Step-by-step explanation:

convert mixed numbers into improper fractions 21/4-(3-7/6)

calculate 21/4 - 11/6

subtract fractions 41/12

3 0

3 years ago

Read 2 more answers

Shelly has a certain amount of money. If she spent 12 dollars of it. She has 1/5 left of it. How much did shelly have originally

Lena [83]

Answer:

$14.40

Step-by-step explanation:

She spent 12 dollars and has 1/5 left.

This means $12 is 4/5 of her original money.

$12=4/5 of the original money

$12+ $[12•(4/5)]=4/5+ (1/5)

$12+$[2.4]=5/5

$14.4=5/5 of the original money

She originally had $14.40

3 0

3 years ago