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Igoryamba
3 years ago
13

Write an expression the quantity of 7+x, squared​

Mathematics
2 answers:
Ray Of Light [21]3 years ago
7 0

Answer:

\huge \boxed{(x+7)^2 }

Step-by-step explanation:

The quantity x + 7 is squared.

(x+7)^2

Expand the brackets and simplify the expression.

(x+7)(x+7)

x(x+7)+7(x+7)

x^2 +7x+7x+49

x^2 +14x+49

We can leave the expression in factored form.

Marizza181 [45]3 years ago
3 0

Answer:

( X+7 ) ^ 2

Step-by-step explanation:

=X ^ 2+ 2 x 7 x X + 7 ^ 2

= X^2 +14X +49

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Help me please !!!!!!
kirill115 [55]

Answer:

The y-int represents the base price of $200 for airfare from NYC

The slope represents a cost of 30 cents per mile traveled

If the base cost for airfare changed to $50 and the cost per mile is unchanged, the new equation would be y=50+0.30x

If the cost per mile changed to 50 cents, the new equation would be y=200+0.50x

5 0
3 years ago
Please help me ASAP!!!! <br> 30 points
nekit [7.7K]

Answer:

37

Step-by-step explanation:

f(x) = 2x-1

g(x) =x^2 +3

f°g(x) = means put g(x) in for x into the function f(x)

f(g(x)) = 2 (g(x)-1

           =2(x^2 +3) -1

    Distribute

           = 2x^2 +6-1

           =2x^2 +5

Now we let x=-4

f(g(-4)) = 2 (-4)^2 +5

           =2(16) +5

            =32+5

            =37

   

         

4 0
4 years ago
An atom has 24 protons and 12 neutrons what is the chemical symbol for the atom?
kykrilka [37]

<u>Answer:</u>

The element is Chromium.

<u>Explanation:</u>

The atom has 24 protons and 12 neutrons.

We know that Cr has 24 number of protons, to the Chemical is Cr (Chromium)

Again, we know that the atomic number is the number of protons and the atomic mass is the sum of proton and neutron.

So, the atomic number is 24 and the atomic mass is (24+12)= 36

Therefore, the symbol is \bold^{36} \mathrm{Cr}_{24}\bold

4 0
3 years ago
A vendor sells hot dogs and bags of potato chips. A customer buys 4 hot dogs and 5 bags of potato chips for $15.50. Another cust
Anna007 [38]

Let <em>h</em> represent the cost of hot dogs and <em>p</em> represent the cost of potato chips.

Customer 1: 4h + 5p = 15.50   ⇒   3(4h + 5p = 15.50)   ⇒   12h + 15p = 46.50

Customer 2: 3h + 2p = 9.00    ⇒  -4(3h + 2p = 9.00)   ⇒ <u>  -12h -  8p = -36.00</u>

                                                                                                         7p = 10.50

                                                                                                           p = 1.50

Customer 2: 3h + 2p = 9.00   →   3h + 2(1.50) = 9.00   →   3h + 3.00 = 9.00   →   3h = 6.00   →   h = 2.00

Answer: hot dog = $1.50, potato chips = $2.00

3 0
3 years ago
4 cubed 2 divided by 4
maksim [4K]

Answer: 32

Step-by-step explanation:

4 cubed 2 divided by 4

Simply is

4 to the power 3 multiplied by 2 divided by 4

4*4*4*2/4

128/4= 32

7 0
3 years ago
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