All categories

2 years ago

Subtract. -21 - (-13)

Mathematics

2 answers:

Daniel [21]2 years ago

8 0

Answer:

$-8$

Step-by-step explanation:

$-21 - (-13)$ is the same as $-21+13$ , so the answer is $-8$ .

Burka [1]2 years ago

3 0

Answer:

-8

Step-by-step explanation:

-21-(-13)

=-21+13

=-8 is the answer......

You might be interested in

Assume that the government is currently balancing the national budget so that outlays equal tax revenue. Then the economy slips

german

Answer:

The fiscal policy decition will derive in a deficit by at least $50 billion in the country federal budget.

Step-by-step explanation:

Remember that changes in fiscal policy, imply decreases and increases to taxes and government spending.

In a recession situation, everyone would expect an expansionary fiscal policy (two examples would be tax cuts and increased government spending).

6 0

3 years ago

PLEASE HELP ME ASAP!!!! :( what are the three blanks?? tysmmmmm

Elan Coil [88]

Answer: A would be the answer!! :D

6 0

2 years ago

Read 2 more answers

HElp me there are two that have not been answered

Greeley [361]

Answer: the answer is 34

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find a · b. |a| = 80, |b| = 50, the angle between a and b is 3π/4.

mart [117]

Answer:

$a\cdot b=-2000\sqrt{2}$

Step-by-step explanation:

Given information: |a| = 80, |b| = 50, the angle between a and b is 3π/4.

We need to find the dot product a · b.

The formula of dot product is

$a\cdot b=|a||b|\cos \theta$

where, θ is the angle between a and b.

Substitute the given values in the above formula.

$a\cdot b=(80)(50)\cos (\frac{3\pi}{4})$

$a\cdot b=4000\cos (\pi-\frac{\pi}{4})$

$a\cdot b=-4000\cos (\frac{\pi}{4})$ $[\because \cos (\pi-\theta)=-\cos \theta]$

$a\cdot b=-4000\frac{1}{\sqrt{2}}$

$a\cdot b=-\frac{4000}{\sqrt{2}}$

Rationalize the above equation.

$a\cdot b=-\frac{4000}{\sqrt{2}}\times \frac{\sqrt{2}}{\sqrt{2}}$

$a\cdot b=-\frac{4000\sqrt{2}}{2}$

$a\cdot b=-2000\sqrt{2}$

Therefore, the value of a · b is $a\cdot b=-2000\sqrt{2}$ .

7 0

3 years ago

Read 2 more answers

On the fifth orbit, the space shuttle Freedom was as close as 110 miles from Earth and as far away as 180 miles from Earth. By h

Varvara68 [4.7K]

$180 - 110 = 70$

4 0

3 years ago

Read 2 more answers