All categories

3 years ago

Is 3+z=-19 true, false, or open? Sorry can't think right now...

2 answers:

7 0

False.The answer should be -16 i think because,3+z=-19:three is gonna come to the other side and change to negative and it will be z=-19-3 which is -16

sladkih [1.3K]3 years ago

4 0

First of all z=16 and its true

You might be interested in

Can you help me find the area of the garden plz

Iteru [2.4K]

Whole circle area= pi r^2= 50.24

If 50.24 is the whole circle which is 360 degrees how much is the garden which is 360-120= 240 degrees

50.24/360= X/240
Cross multiply
360X= 12057.6
Divide by 360
X= 33.5 is the garden
DDDDD is the answer

5 0

3 years ago

Determine the quotient of 1 2/3 ÷ 4/5

ira [324]

Answer:

The desired quotient is 25/12.

Step-by-step explanation:

Rewrite 1 2/3 as an improper fraction: 5/3.

Then divide this 5/3 by 4/5:

------ ÷ 4/5

It's easier (but completely correct) to invert the divisor (4/5) and then multiply 5/3 by (5/4):

5 5 25

----- * ----- = ------

3 4 12

4 0

3 years ago

The dimensions of the base of Box 2 are by 4x - 1. 4x² – x 4x²_1 4x4 5x-1

Lisa [10]

Answer: 4x^2-x

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Cos(a) 63/65 to find sin(a) and tan(a)

Semenov [28]

Answer:

$\huge\boxed{\sin\alpha=-\dfrac{16}{65},\ \tan\alpha=-\dfrac{16}{63}}\\\\or\\\\\huge\boxed{\sin\alpha=\dfrac{16}{65},\ \tan\alpha=\dfrac{16}{63}}$

Step-by-step explanation:

$\cos\alpha=\dfrac{63}{65}\\\\\text{use}\ \sin^2\alpha+\cos^2\alpha=1\\\\\sin^2\alpha+\left(\dfrac{63}{65}\right)^2=1\\\\\sin^2\alpha+\dfrac{3969}{4225}=1\qquad\text{subtract}\ \dfrac{3969}{4225}\ \text{from both sides}\\\\\sin^2\alpha=\dfrac{4225}{4225}-\dfrac{3969}{4225}\\\\\sin^2\alpha=\dfrac{256}{4225}\to\sin\alpha=\pm\sqrt{\dfrac{256}{4225}}\\\\\sin\alpha=\pm\dfrac{\sqrt{256}}{\sqrt{4225}}\\\\\sin\alpha=\pm\dfrac{16}{65}$

$\text{use}\ \tan\alpha=\dfrac{\sin\alpha}{\cos\alpha}\\\\\text{substitute:}\\\\\tan\alpha=\dfrac{\pm\frac{16}{65}}{\frac{63}{65}}=\pm\dfrac{16}{65}\cdot\dfrac{65}{63}=\pm\dfrac{16}{63}$

3 0

4 years ago

Read 2 more answers

Please HELPPP!!!!!!!!!!!!

meriva

Answer:

Answer is A

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers