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3 years ago

Which equation has the correct sign on the product?

Mathematics

2 answers:

Luda [366]3 years ago

3 0

answer:

the answer is a

vlada-n [284]3 years ago

3 0

Answer is D because (-18)4 equals -72.... it’s right.

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The average length of the lunar cycle is approximately 29.5 days. The first month ends after 29.5 days, the second month after a

dimaraw [331]

Answer:

I would appreciate if my answer is chosen as a brainliest answer

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3 years ago

A chef uses 11 pounds of sugar in 5 weeks. Find his rate of usage in pounds per week.

Eduardwww [97]

Answer:

2.2

Step-by-step explanation:

I like to deal with the easiest part first. We know that 5 goes into 10, 2 times, then we have to figure out which decimal can make 1 when multiplied 5 times. when you multiply 0.2 by 5 you get 1 so when you multiply 2.2 by 5 you get 11.

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3 years ago

What is 30% of 20??Help me please

Nuetrik [128]

Taking 30% percent of something is the same as multiplying by .3

so, .3*20 = 6

7 0

3 years ago

Please select the best answer from the choices provided

NeTakaya

we are given

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }$

we can use exponent formula

$a^n \cdot a^m=a^{n+m}$

now, we can use this formula

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2^{\frac{1}{2}+\frac{1}{2} }$

we can add exponent

and we get

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2^{\frac{1+1}{2} }$

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2^{\frac{2}{2} }$

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2^{1}$

$2^{\frac{1}{2}}\cdot 2^{\frac{1}{2} }=2$

So, option-B.......Answer

8 0

3 years ago

Read 2 more answers

Sixty-four percent of the students correctly described the process of photosynthesis. If 63 students did not correctly describe

olganol [36]

Answer:

Number of students who correctly describe the process = 112 students.

Step-by-step explanation:

From the information provided in the question;

64% correctly described the process of photosynthesis.

63 students didn't describe correctly the process of photosynthesis.

We are to find the number of students that did correctly describe the process of photosynthesis.

First of all we need to find the total number of students.Lets represent this value to be x

percentage of students who incorrectly describe the process = (100-64)%

=36%

$\frac{36}{100}*x =63$

x= 63*100/36

x=175 students.

FIRST METHOD

Number of students who correctly describe the process = $\frac{64}{100}*total number of students$

= $\frac{64}{100}*175$

Number of students that correctly describe the process = 112 students.

SECOND METHOD

Number of students who correctly describe the process = Total number of students- number of students who didn't correctly describe the process

Number of students who correctly describe the process = 175-63

Number of students who correctly describe the process = 112 students.

8 0

3 years ago