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krok68 [10]
4 years ago
5

Add the equations. De 2x - 3y = -1 + 3x+3y= 26

Mathematics
2 answers:
valentinak56 [21]4 years ago
8 0

Answer:

x=5

Step-by-step explanation:

2x - 3y = -1

+ 3x+3y= 26

5x=25

x=5

IceJOKER [234]4 years ago
4 0

Answer:

5x=25 so D

Step-by-step explanation:

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Nastasia [14]

Answer:

h= 216x^3y^2÷(8yx9X) = 3x^2y

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3 years ago
Can someone please help click the picture for the question
garri49 [273]

Answer:

B = 90

C = 44

D = 46

Step-by-step explanation:

a right angle means that it is 90 degrees, and the combination of all angles must be 180 degrees. This means that angles D and C must equal 90. If you add together the equations assuming the answer is 90, you can solve for x.

(5x - 29) + (2x + 14) = 90

7x - 29 + 14 = 90

7x - 15 = 90

7x = 105

(7x = 105) ÷ 7

x = 15

When you get the value for x you can then plug it into the individual equations to find the degree of the angle

5(15) - 29

75 - 29 = 46

Angle D = 46

2(15) + 14

30 + 14 = 44

Angle C = 44

To check your answer you can add all of the angles together and if they equal 180 then your answer is correct

44 + 46 +  90

90 + 90 = 180

7 0
3 years ago
F(a)= 2(a + 3) -2 simplify
kirill [66]

Answer:

f(a)=2a+4

Step-by-step explanation:

1. multiply 2×a, which equals to 2a

2. then multiply 2×3, which equals to 6

3. then you'll get f(a)=2a+6-2

4. subtract 6 and 2

5. once that is done your answer will be f(a)=2a+4

3 0
3 years ago
How do I solve this equation for x?
lara31 [8.8K]

Answer:

The answer is x = -32

Step-by-step explanation:

In order to find the value of x, e must first distribute the 6 into the parenthesis.

6(x - 7) = 8x + 22

6x - 42 = 8x + 22

Now we will add/subtract values so that all x values are on the right and all number values are on the left.

6x - 42 = 8x + 22

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-64 = 2x

Now to get the final answer, divide both sides by 2.

-32 = x

5 0
3 years ago
Rewrite the following expression.
faust18 [17]

We have been given the expression

x^{\frac{9}{7}}

We have the exponent rule

x^{\frac{a}{b}}= x^{a^{(\frac{1}{b})}}

Using this rule, we have

x^{\frac{9}{7}}= x^{9^{(\frac{1}{7})}}

Now, using the fact that x^{\frac{1}{n}}=\sqrt[n]{x}, we get

x^{\frac{9}{7}}= \sqrt[7]{x^9}\\
\\
x^{\frac{9}{7}}=\sqrt[7]{x^7\times x^2}\\
\\
x^{\frac{9}{7}}=x\sqrt[7]{x^2}

D is the correct option.

6 0
3 years ago
Read 2 more answers
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