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3 years ago

X^2+3y-4+2(x-z) when x=7 y=5 and y=-3

Mathematics

2 answers:

Snezhnost [94]3 years ago

6 0

7^2 + 3(5) - 4 + 2(7- -3)
49 + 15 - 4 + 2(10)
49 + 15 - 4 + 20
80

Marta_Voda [28]3 years ago

4 0

The answer is 80!!!

(Use gemdas / pemdas)

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Plz gyz ineed the calculation

sergejj [24]

Answer:

Step-by-step explanation:

so he spends : 1/5 , 1/2 , 1/10.....common denominator of 10

1/5 + 1/2 + 1/10 = 2/10 + 5/10 + 1/10 = 8/10 = 4/5

so he spends 4/5 of his income.

that means he saves : 1 - 4/5 = 5/5 - 4/5 = 1/5 <==

8 0

3 years ago

An item on sale costs 80% of the original price. The original price was $22.

sergejj [24]

Answer:

17.6

Step-by-step explanation:

22 x .80 =17.6

17.6 is 80% of 22 so that would be your answer

8 0

3 years ago

Smooth transitions in an informative essay_____

WITCHER [35]

The answer is connect.
hope your day is good !!

3 0

3 years ago

Read 2 more answers

Margo can purchase tile at a store for $0.69 per tile and rent a tile saw for $32. At another store she can

puteri [66]

Answer:

32 tiles

Step-by-step explanation:

32+0.69*n= 32.69

32.69*n= 32.69n-0.69

=32

7 0

3 years ago

Simplify the expression. (16y54y3)12 Enter your answer in the box.

sp2606 [1]

Answer:

Simplify the expression: $(16y^{\frac{5}{4}}y^3)^{\frac{1}{2}}$

Use the exponent power:

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

$\sqrt[n]{a^n} =a$
$(a^n)^m = a^{nm}$

$(16y^{\frac{5}{4}}y^3)^{\frac{1}{2}}$

Apply the given rules;

$(16y^{\frac{5}{4} +3} )^{\frac{1}{2}}$

Simplify:

$(16y^{\frac{17}{4}} )^{\frac{1}{2}}$

then;

$(16)^{\frac{1}{2}} \cdot (y^{\frac{17}{4}})^{\frac{1}{2}} = 4y^{\frac{17}{8}}$

Therefore, the simplified expression of $(16y^{\frac{5}{4}}y^3)^{\frac{1}{2}}$ is, $4y^{\frac{17}{8}}$

7 0

3 years ago