All categories

3 years ago

Whoch expression is equivalent to -20 - (-4)

Mathematics

2 answers:

dangina [55]3 years ago

5 0

Answer:

Step-by-step explanation:

-(-4)=+4

so it is -20+4

Setler [38]3 years ago

4 0

Answer:

D) -20 + 4 is the answer.

Step-by-step explanation:

1) Record the terms .

$4 - 20$

2) Use this rule: a - b = -(b - a)

$- (20 - 4)$

3) Use algorithm method.

(see the attached picture)

4) After simplifying, we have:

$-(20 - 4) = - 16$

5) therefor, -20 + 4 = -16

$- 16$

You might be interested in

Solutions to -8x + 5 less than or equal to 11

Vilka [71]

Answer:

$x\geq -\frac{3}{4}$

Step-by-step explanation:

$-8x+5\leq 11\\\\1. -8x\leq 11-5\\ -8x\leq 6$

Isolate the parts of the equation with the x variable

$2. \frac{-8}{-8} x\geq\frac{6}{-8} \\x\geq -\frac{3}{4}$

When you divide or multiply by a negative number in inequalities, you must flip the sign of the inequality.

5 0

3 years ago

Read 2 more answers

Changing Bases to Evaluate Logarithms in Exercise, use the change-of-base formula and a calculator to evaluate the logarithm. Se

son4ous [18]

Answer:

The question is incomplete, the complete question is "Changing Bases to Evaluate Logarithms in Exercise, use the change-of-base formula and a calculator to evaluate the logarithm. See Example 9. $log_{4}7$ .

$log_{4}7=1.404\\$

Step-by-step explanation:

From the general properties or laws of logarithm, we have the

$log_{a}b=\frac{logb}{loga} \\$

where both log are now express in the natural logarithm base.

i.e $log_{a}b=\frac{lnb}{lna}\\$

hence we can express our $log_{4}7=\frac{ln7}{ln4} \\$ .

the value of ln7 is 1.9459 and ln4 is 1.3863

Hence $log_{4}7=\frac{ln7}{ln4}=\frac{1.9459}{1.3863}\\$ .

$log_{4}7=1.404\\$

6 0

3 years ago

(Need help ASAP!) Select the equation that most accurately depicts the word problem.

antiseptic1488 [7]

I the answer is C I’m not really sure but I’ll update u when i get the answer

5 0

3 years ago

Read 2 more answers

Find the solution of the equation. 6(3x - 7.2) = 25.2 *

Kaylis [27]

The answer is D. x = 3.8

6 0

3 years ago

Read 2 more answers

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!

shepuryov [24]

Answer:

Step-by-step explanation:

5 0

3 years ago

Whoch expression is equivalent to -20 - (-4)​

Whoch expression is equivalent to -20 - (-4)