Recent activity by X Zhang

Recent activity by X Zhang

Supposed that the mean systolic blood pressure for women I’ve age seventy is 131mmHg ( millimeters of mercury), with a standard deviation of 9 mmHg. Supposed that the blood pressure are normally distributed.

answered Aug 17, 2023

1 answer 36.4k views

Ed 7. The movement of large num- bers of people from region to region is a. deportation. b. migration C. immigration d. population growth.

answered Aug 15, 2023

1 answer 220k views

Help with proofs please

answered Jul 10, 2023

1 answer 84.7k views

What kind of crystal structure is quartz? cubic hexagonal monoclinic orthorhombic

asked Jul 1, 2023

1 answer 157k views

The trees in the forest decrease as the numbers of homes built increase. Identify the independent variable. A. trees B. homes built

asked Jun 11, 2023

1 answer 151k views

Can somebody help me if you know what this is

asked Jun 2, 2023

1 answer 149k views

Select all the polygons that would be used in a net of the solid figure shown.

answered May 1, 2023

1 answer 100k views

Please help NOW! Using your prior knowledge and information in the text, which injuries would ice be appropriate for? Check all that are true. a sprained ankle a bumped head a long cut or gash a stomachache

answered Apr 24, 2023

1 answer 32.3k views

Is this a run-on sentence? Before the start of the Revolutionary War, the British thought it would be easy to defeat the colonists, whereas Britain had an army and the world's most powerful navy, the colonists

asked Mar 18, 2023

1 answer 12.5k views

A clothing store used the sign shown below to advertise a discount on shirts. **DISCOUNT** BUY 2 SHIRTS, GET 50% OFF THIRD SHIRT. *** Olivia wants to buy three shirts, which were originally priced $42.

asked Nov 22, 2022

1 answer 145k views

Kylie want to buy a laptop that originally cost p dollars

answered Nov 21, 2022

1 answer 147k views

The search for black holes involves searching for Group of answer choices single stars that emit large amounts of X-rays. a stellar core greater than 3 solar masses large spherical regions from which no

answered Oct 26, 2022

1 answer 1.4k views

Which of the following is equivalent to √45−√5 ?

asked Oct 10, 2022

1 answer 218k views

What is the value of x in the equation 13−2(+4)=8+1 13 x − 2 ( x + 4 ) = 8 x + 1 ?

answered Sep 30, 2022

1 answer 232k views

Compare and contrast protons and neutrons. Use A.C.E. A= Answer C= Cite Evidence E= Expand

answered Sep 20, 2022

1 answer 125k views

18. Reasoning Explain why a hybrid is considered to be a fuel-efficient vehicle.

asked Sep 20, 2022

1 answer 136k views

Hue is arranging chairs. She can form 3 rows of a given length with 2 chairs left over, or 9 rows of that same length if she gets 10 more chairs. Complete the equation and solve it to find how many chairs

answered Sep 15, 2022

1 answer 84.8k views

Kayla walks 4 2/5 miles each day. How far does she walk?

answered Jul 20, 2022

2 answers 231k views

Airport Auto Leasing has a ratio of cars to trucks that is 5 to 3. If each leasing center has 24 trucks, which auto leasing company has more cars? Main Street Auto Leasing has more cars since it has cars

answered Jul 16, 2022

1 answer 44.8k views

A teacher asked 21 pupils to estimate the height of a building in metres. The stem-and-leaf diagram shows all 21 results. 6 represents 6.5m 6 5 9 7 0 2 6 8 8 8 3 3 5 7 7 9 9 0 5 5 5 10 8 11 2. What was

answered Jun 25, 2022

2 answers 89.3k views

Search QAmmunity.org