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3 years ago

What is -11+blank equals 15

Mathematics

2 answers:

noname [10]3 years ago

7 0

Answer:

Step-by-step explanation:

Flauer [41]3 years ago

3 0

Answer:

Step-by-step explanation:

Fifteen minues negative eleven equals to twenty six. Hope this helps and good luck with your assignment.

15-(-11)=26

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3X minus 2 X equals 40

xenn [34]

Answer:

x = 40

Step-by-step explanation:

collect the terms (3-2)x = 40

subtract the numbers 1x = 40

divide from both side 1x/1 = 40/1

solution x = 40

4 0

4 years ago

Read 2 more answers

Explain how to solve 4^(x+3)=7 using the change of base formula log_by=log y/ log b. Round to the nearest thousandth

HACTEHA [7]

Answer:

x = -1.59

Step-by-step explanation:

We are here given a equation and we need to solve out for x. The given equation is ,

$\sf\longrightarrow 4^{( x +3)}= 7$

Take log to the base " e " on both sides , so that we can remove the variable from the exponent .

$\sf\longrightarrow log_e 4^{x+3}= log_e 7$

Simplify using the property of log , $\sf log a^m = m log a$ , we have ,

$\sf\longrightarrow (x + 3) ln 4 = ln 7$

Distribute by opening the brackets ,

$\sf\longrightarrow x ln 4 + 3 ln 4 = ln 7$

This can be written as ,

$\sf\longrightarrow x ln 4 = ln 7 - 3ln4$

Divide both sides by ln 4 ,

$\sf\longrightarrow x = \dfrac{ ln7}{ln 4 } - \dfrac{ 3ln4}{ln4}$

Simplify ,

$\sf\longrightarrow x = \dfrac{ ln4 }{ln7 } -3$

On simplifying , we will get ,

$\sf\longrightarrow \boxed{\blue{\sf x = -1.59 }}$

5 0

3 years ago

The square of a number is 12 less than 7 times the number. What is the number?

hjlf

Answer:

The number is either 3 or 4

Explanation:

Assume that the number we are looking for is x

The square of the number would be x²

7 times the number would be 7x

We are given that:

square of the number (x²) is 12 less than 7 times the number (7x)

Translating this into an equation, we would have:

x² = 7x - 12

Rearranging the quadratic equation:

x² - 7x + 12 = 0

Now, we factor the equation:

(x-4)(x-3) = 0

This means that:

either x-4 = 0 ..................> x = 4

or x-3 = 0 ........................> x = 3

Let's check if any of the solutions is an extrovert:

For x = 3 .............> (3)² = 7(3) - 12 .........> 9 = 21 - 12 .......> 9 = 9 .......> not extrovert

For x = 4 .............> (4)² = 7(4) - 12 .........> 16 = 28 - 12 .....> 16 = 16 ....> not extrovert

Since we have no restrictions on the number, therefore, both solutions would be accepted

Hope this helps :)

7 0

4 years ago

HELP!!!!!!!!!!GIVING BRAINLIEST-For each diagram, state the relationship between the angles indicated and then find the measure

NISA [10]

Answer:

a. corresponding angles

b. alternate interior angles

c. opposite angles

d. cointerior angles

a. = 127

b. = 65

c. = 179

d. 180-41= 139

5 0

4 years ago

What is the probability that out of 175 chicks hatched on Peeper

Ivenika [448]

Answer:

40% or 0.4

Step-by-step explanation:

70 ÷ 175 = 0.4

8 0

3 years ago