2 years ago

_ Is –7 + 9 positive or negative

Mathematics

1 answer:

Yanka [14]2 years ago

5 0

Answer:

Positive 2

Step-by-step explanation:

its like ur subtracting 9+ (-7)

its basically 9-7=2

but not all problems r like this.

Brainlest plz

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Plzzzzz help I’ll mark brainlest thxxxx

Sloan [31]

an = a1 +d(n-1)

a4 =a1+d(4-1)

-4 = -1+d(3)

add 1 to each side

-3 = 3d

d= -1

an = a1 +d(n-1)

an = -1 +-1 (n-1)

an = -1 -n +1

an = -n

Choice D

6 0

3 years ago

Help me answer this pls

stira [4]

Answer:

x=5

Step-by-step explanation:

From this information we know that,

$5x - 6 = 3x + 4 \\ 5x - 3x = 4 + 6 \\ 2x = 10 \\ x = 5$

Hope it helps :)

6 0

3 years ago

Angle 3 is 65 degrees. Identify all the other angles that measure 65 degrees.

Bas_tet [7]

Angles 2, 6, and 7 because angle 1 = 115 so that makes angle 4 = 115 so angle 2 must also be 65 so angle 4 and 2 = 180 and the same goes for angles 5,6,7,8

4 0

2 years ago

Read 2 more answers

In a right triangle, if a = 8 and c = 17, what is the correct setup to find the value of b?

salantis [7]

Answer:

b =15

Step-by-step explanation:

We can use Pythagoras theorem to find b:

$a^{2}+b^{2} = c^{2}$

$8^{2} + b^{2} = 17^{2}$

64 + $b^{2}$ = 289

64 + 225 = 289

64 + $15^{2}$ = 289

b = 15

hope this helps :) and sorry if not right

7 0

2 years ago

Read 2 more answers

Help please!! really quickly

yKpoI14uk [10]

$y = \frac{7}{5} x + 1$

8 0

3 years ago