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blsea [12.9K]
3 years ago
8

Evaluate the expression 7+3²× 2​

Mathematics
1 answer:
disa [49]3 years ago
6 0

Answer:

25

Step-by-step explanation:

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25 Points for answer
Luden [163]

Answer: 2

Step-by-step explanation:

First you have to plug in the value for x which is -18 so then you're equation then get y by itself and solve for y. This becomes

-3(-18) -y = 56

54 - y = 56

-54 -54

Y=2

You can check your work by plugging in 18 for x and 2 for y and when you solve the equation your answer should equal 56.

7 0
3 years ago
Read 2 more answers
Use the Quadratic Formula to find the exact solutions of x2 + 7x - 4 = 0.
sladkih [1.3K]

Answer:

The solution of equation x^2+7x-4=0 is 0.53,-7.53.

Step-by-step explanation:

Given : Quadratic equation x^2+7x-4=0

To find : The solution of equation ?

Solution :

The solution of the quadratic equation ax^2+bx+c=0 is x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

Here, a=1, b=7 and c=-4.

Substitute the values,

x=\frac{-7\pm\sqrt{7^2-4(1)(-4)}}{2(1)}

x=\frac{-7\pm\sqrt{65}}{2}

x=\frac{-7+\sqrt{65}}{2},\frac{-7-\sqrt{65}}{2}

x=0.53,-7.53

Therefore, the solution of equation x^2+7x-4=0 is 0.53,-7.53.

3 0
3 years ago
.....................................
guapka [62]
<h3>Answer:</h3>

domain = { 0, m, 8, 6 }

range = { q, 6 , 8, m }

7 0
3 years ago
Liza bought 5/8 pound of trail mix. She gives 2/8 pound of trail mix to Michael. How much trail mix does Liza have left?
Salsk061 [2.6K]
5/8 - 2/8 = 3/8, and 3/8 simplify into 0.375, so he have 0.375 pounds of trail mix left.
6 0
4 years ago
Find the perimeter and area of the image after dilating the figure shown with the given scale factor.
Alika [10]

Answer:

P = 96

A = 575

Step-by-step explanation:

basically dialating a figure is making it smaller or larger by a certain amount and in this case it is 6 so you have to make each side of your square 6 times larger so each side would be 24 (of whatever unit you are using) so then you would calculate it by doing 24*24 to find the area and 24*4 to find the perimeter.

3 0
3 years ago
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