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3 years ago

Whatttt doesssss 7*7=

Mathematics

2 answers:

Rus_ich [418]3 years ago

8 0

Answer:

Step-by-step explanation:

Tcecarenko [31]3 years ago

7 0

Answer:

Step-by-step explanation:

7+7+7+7+7+7+7=49

Saying seven times seven is just saying seven plus seven, seven times.

Hope this helps, have a good day/night and stay safe and healthy.

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Tell whether the side lengths 18, 24, and 30 would form a right triangle?*

allochka39001 [22]

Answer:

yes 18 24 and 30 does form a right triangle

7 0

3 years ago

What is 10% of a number whose square is 81

andrezito [222]

Answer: 0.9

Step-by-step explanation:

Let x be the number

Determine the value of the number

x² = 81

√x² = √81

x = 9

Find the 10% of the number

Final number = rate of percentage × original number

Final number = 10% × 9

Final number = $\boxed{0.9}$

Hope this helps!! :)

Please let me know if you have any questions

5 0

3 years ago

Identify the independent and dependent variables. The equation A=25w gives the area A (in square feet) of a rectangular dance fl

kozerog [31]

Answer:

The dependent variable is A

The independent variable is w

Step-by-step explanation:

Given

$A = 25w$

Required

Identify the variables

In $A = 25w$

The value of w is independent of the value of A.

In other words:

A derive its own value from w; by multiplying 25 and w.

Take for instance:

$w = 3$

The value of A would be:

$A = 25 * 3$

$A = 75$

Hence:

The dependent variable is A

The independent variable is w

7 0

3 years ago

(a) determine the null and alternative hypotheses, (b) explain what it would mean to make a Type I error, and (c) explain what i

iren2701 [21]

Null: the mean amount of peanut butter in a jar is equal to 32 oz.
alternative: the mean amount of peanut butter in a Jar is less than 32oz.

type 1 error is is rejecting the null when it is actually true. this means that we would say that the mean amount of peanut butter is not equal to 32 when it actually is.

type 2 error is failing to reject the null when it is actually false. this means that we would say the mean amount of peanut butter is equal to 32 when in reality it is less.

3 0

3 years ago

Pls help ASAP it’s confusing and I’m short on time

Korolek [52]

Answer:

6(3x + 1/2)

9(2x + 1/3)

2(9x + 5) - 7

Step-by-step explanation:

6(3x + 1/2)= 18x + 3 ✅

9(2x + 1/3)= 18x + 3 ✅

4(4x + 1) -1= 16x + 3

2(9x + 5) - 7= 18x + 3 ✅

3(6x + 2) + 3= 18x + 9

6 0

3 years ago