All categories

3 years ago

Three less than one-half a number is -71

Mathematics

2 answers:

morpeh [17]3 years ago

4 0

3-1/2x=-71

when you solve it, the answer is 37

Whitepunk [10]3 years ago

4 0

Since it is three less than one-half, first add 3 to -71.

-71+3=-68

Since it is one-halt this number, multiply it by 2

-68x2=-136

Hope this helps

You might be interested in

If a = 7 and b = 11, what is the measure of ∠B? (round to the nearest tenth of a degree) A) 32.5° B) 39.2° C) 50.5° D) 57.5°

Ilia_Sergeevich [38]

Answer:

D) 57.5°

Step-by-step explanation:

As the question is not complete. So, let's suppose it is a right angle triangle then, we can apply Pythagoras theorem to calculate the hypotenuse or the third side.

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

a = 7 and b = 11

$a^{2}$ = 49

$b^{2}$ = 121

Plugging in the values, we will get:

$c^{2}$ = 49 + 121

$c^{2}$ = 170

c = $\sqrt{170}$

To calculate the unknown angle B, we can use law of sine.

Law of sine = $\frac{a}{sinA}$ = $\frac{b}{sinB}$ = $\frac{c}{sinC}$

So,

$\frac{c}{sinC}$ = $\frac{b}{sinB}$

$\frac{\sqrt{170} }{sin90}$ = $\frac{11}{sinB}$

Sin90 = 1

sinB = $\frac{11}{\sqrt{170} }$

B = $sin^{-1}$ ( $\frac{11}{\sqrt{170} }$ )

B = 57.5°

8 0

3 years ago

In City A, the temperature rises 7 degrees F from 8AM to 9AM. Then the temperature drops 6 degrees F from 9AM to 10AM. In City B

madam [21]

Answer:

is there like a image of this eqation?

Step-by-step explanation:

5 0

3 years ago

What is the slope of the line y = -2?

rjkz [21]

Answer:

slope= 0

Step-by-step explanation:

it's a horizontal line

4 0

3 years ago

Can someone help me with this question? pls

Ivenika [448]

Answer:

See attachment

Step-by-step explanation:

See attachment

6 0

3 years ago

PLEASE help me and PLEASE show the work PLEASE.

Dafna1 [17]

20(4×-2)

________

(4 - (-2))²

simplified;

20(-8)

_____

(6)²

simplified;

-160

______

simplified;

-4 16/36

simplified;

-4 4/9

3 0

3 years ago