Algebra 1, Section 7.09

Which the following expressions is equivalent(<br> a + b)(a-b)?

olga nikolaevna [1]

Answer:

Step-by-step explanation:

(a+b)(a-b)=a^2-b^2

8 0

3 years ago

Please help with number 1! Thanks

Darina [25.2K]

To convert -34º C to Fahrenheit, plug the temperature in Celsius in the formula and solve.
F = 9/5C + 32
F = 9/5(-34) + 32
To solve this you must first multiply.
9/5 • -34 = -61.2
F = -61.2 + 32
Now add.
-61.2 + 32 = -29.2
The answer is -34º C equals -29.2º F.

Hope this helps!

4 0

3 years ago

Solve for y: x + 5y - 10=22

cestrela7 [59]

Answer: Y= -x/5 + 32/5

Step-by-step explanation:

7 0

3 years ago

Ive worked out the yes can you help me on the no ill mark as brainliest if someone can anwser

Mashcka [7]

Answer:

yes yes yes yes yes yes yes yes yes yes yes yes yesyes yes yes yes yes yes yes yes yes yes yes yes yes

yes yes yes yes yes yes yes yes yes yes yes yes yes

Step-by-step explanation:

6 0

3 years ago

I don’t know how to solve for Q.

Naya [18.7K]

Answer:

∠Q = 75°

Step-by-step explanation:

Start by recognizing that the triangle is isosceles (the long sides are marked as being equal-length). That means angles Q and R have the same measure.

Next, you use the fact that the sum of angles is 180° to write an equation.

∠R +∠P +∠Q = 180°

(2x +15)° +x° +(2x +15)° = 180° . . . . substitute the known values

5x +30 = 180 . . . . . . . . . . . . . . . . divide by °, collect terms

5x = 150 . . . . . . . . subtract 30

x = 30 . . . . . . . divide by 5

Then angle Q is ...

∠Q = (2x +15)° = (2×30 +15)°

∠Q = 75°

8 0

2 years ago