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3 years ago

Help meh please..................

Mathematics

2 answers:

Fittoniya [83]3 years ago

7 0

Answer is 2x and 7y because they’re 2 different variables ( x and y are two different letters )

madam [21]3 years ago

3 0

Answer:

The correct answer is B. (2x and 7y)

Step-by-step explanation:

You cannot combine x to y therefore they are considered unlike terms .

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The expression, involving exponents , to represent the shaded area, in square inches, diagram. Then use that expression to calcu

mart [117]

Answer:

The shaded area is $23\ in^{2}$

Step-by-step explanation:

we know that

The shaded area is equal to the area of the large square minus the area of the two smaller squares

$A=6^{2} -(3^{2} +2^{2})\\ \\ A=(2*3)^{2} -(3^{2} +2^{2})\\ \\A=(2^{2})(3^{2}) -(3^{2} +2^{2})$

Calculate the shaded area

Remember that

$3^{2}=9\\ 2^{2}=4$

substitute

$A=(4)(9) -(9 +4)\\ \\A=36-13\\ \\A=23\ in^{2}$

5 0

3 years ago

Please help me, how do you do this

lina2011 [118]

Answer:

84x+50

Step-by-step explanation:

First, you would find the area of the entire square. The area of a square is LW, so you would multiply (7x+6)(7x+6). For this, I would use the FOIL method, so you would multiply the first terms which would be (7x)(7x)=14x^2. Then the outside terms, so (7x)(6)=42x. Then the inside, so (7x)(6)=42x. Finally, the last terms, 6(6)=36.

Then you would combine them, so the area of the whole square is $14x^{2} +42x+42x+36$ which would equal $14x^{2} +84x+36$ .

Then, the area of the smaller square is (x)(x) which would equal $x^{2}$ .

Then you would subtract the smaller square from the bigger one, so the final answer would be $14+84x+36$ which you could simplify to $84x+50$

3 0

3 years ago

Using the graph of f(x) = log2x below, approximate the value of y in the equation 22y = 5.

Naddika [18.5K]

The correct question is
Using the graph of f(x) = log2x below, approximate the value of y in the equation 2^(2y) = 5

we have
2^(2y) = 5--------------> applying base 2 logarithm both members
2y*log2(2)=log2(5)
log2(2)=1
then
2y=log2(5)
y=[log2(5)]/2

using the graph
for x=5 the approximate value of log2(5) is 2.3
see the attached figure
so
y=[log2(5)]/2--------> y=[2.3]/2----------> y=1.15

the answer is
the approximate value of y is 1.15

4 0

3 years ago

Read 2 more answers

Simplify this expression. <br> 7×²+9×²-×²

guapka [62]

Step-by-step explanation:

7x² + 9x² - x²

when you wrote the expression you used the "multiplication ×" and not "x".

anyway, when you have terms of the same variable of the same exponent, then the combination variable and exponent become an item. and the same items can simply be added in an expression.

this is similar to

7 apples + 9 apples - 1 apple

what would you do there ?

see ?

and the same we are doing now for the given expression : we are adding the terms up :

7x² + 9x² - x² = (7 + 9 - 1)x² = 15x²

and in the middle I gave you even the reason why we can do that.

please, let me know, if this is still unclear.

4 0

2 years ago

NO ONEIS ANSWERING MY QUETION PLEASE ANSWER FOR 10 POINTS

Hatshy [7]

Answer:

24.5

Step-by-step explanation:

+_+$+$+$-$-$-$+$+$+$+$+

7 0

3 years ago

Read 2 more answers