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3 years ago

CAN SOMEONE PLEASE HELP ME???

Mathematics

2 answers:

AleksandrR [38]3 years ago

5 0

Answer: The answer is 5.6d+ 2.1

Step-by-step explanation:

Add then subtract then add then multiply then subtract then divide.

dalvyx [7]3 years ago

3 0

Answer:

C {1,2,4,5,6}

Step-by-step explanation:

never repeat the same number that's your answer

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Fwd:The hardware store is having a 15% off sale on lawn mowers this weekend. If x is the original price of a lawn mower, what wi

Sveta_85 [38]

Answer:

Step-by-step explanation:

Let x be the original price of a lawn mower,

If the hardware store is having a 15% off sale on lawn mowers this weekend, the amount discounted is expressed as;

= 15 % of x

= 0.15 of x

= 0.15x

Final sales price = Original price - discounted price;

Final sales price = x - 0.15x

Factor out x;

x - 0.15x = x(1 - 0.15)

Hence the correct equations are (x - 0.15x) and x(1.00 - 0.15)

3 0

3 years ago

What expressions are equivalent to 4(4a+5) which 3 is correct?

Effectus [21]

The answer is a,c, and d

7 0

3 years ago

YThe Pew Research Center conducted a survey of 1007 adults and found that 85% of them know what Twitter is. Find a 90% confidenc

goblinko [34]

Answer:

The 90% confidence interval is $0.8315 < p < 0.8685$

Step-by-step explanation:

From the question we are told that

The sample size is n = 1007

The sample proportion is $\^ p = 0.85$

From the question we are told the confidence level is 90% , hence the level of significance is

$\alpha = (100 - 90 ) \%$

=> $\alpha = 0.10$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.645$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p(1- \^ p)}{n}}$

=> $E =1.645 * \sqrt{\frac{0.85 (1- 0.85 )}{1007}}$

=> $E = 0.0185$

Generally 90% confidence interval is mathematically represented as

$\^ p -E < p < \^ p +E$

=> $0.85 -0.0185 < p < 0.85 + 0.0185$

=> $0.8315 < p < 0.8685$

6 0

3 years ago

ANSWER THIS ASAP NO FILE AT ATT!!

sladkih [1.3K]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Which proportion can be used to show that the slope of JL is equal to the slope of MP

Ilya [14]

Answer:

See below and attached

Step-by-step explanation:

<u>As per the graph we have:</u>

Coordinates of JL are J(-7, 4), L(-4, 0)

Coordinates of MP are M(-10, 8), P(-1, -4)

<u>Slope formula is:</u>

m = (y₂ - y₁)/(x₂ - x₁)

<u>Slope of JL:</u>

(0 - 4)/(-4-(-7)) = - 4 / 3

<u>Slope of MP:</u>

(-4 -8)/(-1- (-10)) = -12 / 9 = - 4/3

5 0

3 years ago