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2 years ago

Match the expression with its name. 3x + 7

Mathematics

2 answers:

DerKrebs [107]2 years ago

5 0

B linear binomial because 3x-7 has no x^2 nor x^3 so is linear and is two terms

murzikaleks [220]2 years ago

5 0

Your answer is B. linear binomial.

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Please please help!!

mojhsa [17]

Answer:

yes 1 minus 1 equals zero your very smart and intelligent

Step-by-step explanation:

8 0

2 years ago

A student is trying to calculate his semester average. He knows that his test average is an 80, his quiz average is a 72, homewo

ELEN [110]

You have to multiply and divide the 20% time the 30

4 0

3 years ago

HOW MANY DIFFERENT COMMITTEES CAN BE FORMED FROM 4 TEACHERS AND 20

Daniel [21]

Answer:

6840

Step-by-step explanation:

multiply combinations

n!/(r!(n − r)!)

n choose r

n (objects) = |n

r (sample) = r

(4 teachers, CHOOSE 2)*(20 students, CHOOSE 3)

C(4,2) times C(20,3) =

C(n,r)=?

C(n,r) = C(4,2)

4! / (2!(4-2)!)

4! /2! x 2!

= 6

C(n,r)=?

C(n,r) = C(20,3)

20! / (3!(20-3)!)

20! / 3! x 17!

= 1140

6 * 1140 = 6840

alegbracom Edwin McCravy

4 0

11 months ago

a 15-ft ladder is leaning against one wall of an alley 9 ft wide. the ladder slips, its top sliding down the wall, its foot slid

blagie [28]

2x dx/dt +2y dy/dt = 0
x dx/dt + y dy/dt = 0 
9*4 + 12 dy/dt = 0 
dy/dt = - 3 ft/sec

5 0

2 years ago

A simple random sample of size n equals 200 individuals who are currently employed is asked if they work at home at least once p

____ [38]

Answer: 99% of confidence interval for the population proportion of employed individuals who work at home at-least once per week

//0.20113,0.20887[/tex]

Step-by-step explanation:

step 1:-

Given sample size n=200

of the 200 employed individuals surveyed 41 responded that they did work at home at least once per week

Population proportion of employed individuals who work at home at least once per week P = $\frac{x}{n} =\frac{41}{200} =0.205$

Q=1-P= 1-0.205 = 0.705

step 2:-

Now $\sqrt{\frac{P Q}{n} } =\sqrt{\frac{(0.205)(0.705)}{200} }$

=0.0015

step 3:-

Confidence intervals

using formula

$(P - Z_∝} \sqrt{\frac{P Q}{n},} (P + Z_∝} \sqrt{\frac{P Q}{n},$

$(0.205-2.58(0.0015),0.205+2.58(0.0015)\\0.20113,0.20887$

=0.20113,0.20887[/tex]

conclusion:-

99% of confidence interval for the population proportion of employed individuals who work at home at-least once per week

//0.20113,0.20887[/tex]

4 0

3 years ago