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3 years ago

HELP PLEASE! Evaluate the expression when x= 4 and y = 9. 5y – 6х =

Mathematics

2 answers:

anyanavicka [17]3 years ago

4 0

It would be 21 because 5x9=45 and 6x4=24 then you subtract them

Galina-37 [17]3 years ago

3 0

Answer: 21

Step-by-step explanation:

5 x 9 - 6 x 4 = 45-25= 21

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PLEASE HELP ME !!! SOS

kramer

Answer:6x - 2y = 22

Step-by-step explanation:

Just multiplying equation by 2

Can do it with any number

8 0

2 years ago

Sue Has 44 Rib bones on display. there are 22 on the right side and 22 on the left on the right of its body on the right side 9/

Murljashka [212]

Answer:

18/44

Step-by-step explanation:

To turn 9/22 into something over 44, we need to figure out what to multiply it by.

44 / 22 = 2.

Multiply 9/22 by 2:

9/22 * 2 = 18/44

4 0

3 years ago

What is the graph of the equation 9x^2 + 4y^2 - 18x + 8y - 23 = 0 ?<br> Also, how did you get that?

Dmitriy789 [7]

13xy^2-10xy-23=0

you first add the like terms and rewrite and thats how you get the answer

8 0

3 years ago

ANSWER ASAP PLS Eve knits scarves for her online store. This week she has already knitted 9 scarves. There are 2 days left in th

JulsSmile [24]

Answer:

Step-by-step explanation:

Since Eve has already knitted nine scarves we just need to add of few more. Our equation is this: 9 + _ + _ = ?

If you do 9 + 4 + 4, you get 17. Therefor, Eve must knit four scarves per day to meet her goal.

5 0

3 years ago

Read 2 more answers

7,,,,,,,,,,,,,,,,,,,,please help

Goryan [66]

Answer:

Step-by-step explanation:

The given expression is

$\frac{2^{\frac{11}{2} }\times 2^{-7}\times 2^{-5}}{2^3\times 2^{\frac{1}{2} }\times 2^{-10}}$

Recall and use

$a^m\times a^n=a^{m+n}$

$\frac{2^{\frac{11}{2} -7-5}}{ 2^{3+\frac{1}{2} -10}}$

$\frac{2^{-\frac{13}{2}}}{ 2^{-\frac{13}{2}}}$

Same bases are dividing, so we write one base and subtract the exponent.

$2^{-\frac{13}{2}+\frac{13}{2}}$

$2^0=1$

8 0

3 years ago