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3 years ago

Please help ASAP

Mathematics

1 answer:

gtnhenbr [62]3 years ago

3 0

Put the value of x = -2 to the equation of the function y = -4x + 3:

y = -4(-2) + 3 = 8 + 3 = 11

<h3>Answer: A. (-2, 11)</h3>

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2. A store sells an assortment of batteries

astra-53 [7]

Answer:

30%

Step-by-step explanation:

# of bulk packs = 300

# of triple As = 90

% = 90 / 300 * 100%

% = .3 * 100%

% = 30%

3 0

3 years ago

Read 2 more answers

-3(-9v-4)-2(v-2)????

guapka [62]

Answer: 25v+16
Solution: Distribute the -3 to the whole equation in the parenthesis. This will make the equation 27v+12-2(v-2). Do the same thing with the -2 and the other parenthesis. This will make the equation 27v+12-2v+4. Combine like terms. This will make the equation 25v+16.
Hope this helped

6 0

2 years ago

Use repeated addition to find the solution to each multiplication problem. Change any improper fractions to mixed numbers. 4x1/3

Nata [24]

Answer:

$1\frac{1}{3}$

Step-by-step explanation:

Given the following question:

$4\times\frac{1}{3}$

To find the answer simply multiply the numerators and the denominators by each other.

$4\times\frac{1}{3}$
$4=\frac{4}{1}$
$\frac{4}{1} \times\frac{1}{3}$
$4\times1=4$
$1\times3=3$
$=\frac{4}{3}$
$\frac{4}{3} =4\div3=1\frac{1}{3}$
$1\frac{1}{3}$

Hope this helps.

7 0

2 years ago

The ages of 11 students enrolled in an on-line macroeconomics course are given in the following steam-and-leaf display:

blsea [12.9K]

Answer:

The standard deviation of the age distribution is 6.2899 years.

Step-by-step explanation:

The formula to compute the standard deviation is:

$SD=\sqrt{\frac{1}{n}\sum\limits^{n}_{i=1}{(x_{i}-\bar x)^{2}}}$

The data provided is:

X = {19, 19, 21, 25, 25, 28, 29, 30, 31, 32, 40}

Compute the mean of the data as follows:

$\bar x=\frac{1}{n}\sum\limits^{n}_{i=1}{x_{i}}$

$=\frac{1}{11}\times [19+19+21+...+40]\\\\=\frac{299}{11}\\\\=27.182$

Compute the standard deviation as follows:

$SD=\sqrt{\frac{1}{n}\sum\limits^{n}_{i=1}{(x_{i}-\bar x)^{2}}}$

$=\sqrt{\frac{1}{11-1}\times [(19-27.182)^{2}+(19-27.182)^{2}+...+(40-27.182)^{2}]}}\\\\=\sqrt{\frac{395.6364}{10}}\\\\=6.28996\\\\\approx 6.2899$

Thus, the standard deviation of the age distribution is 6.2899 years.

7 0

2 years ago

Please help me wit dis part #2!!!

kow [346]

A) The relationship between the amount of hours spent studying and the test scores increase with time in a positive direction showing a positive correlation.

B) Y=8x+40

Y=8(3) +40

Y=24+40

Y= 64

C) The 40 stands for the initial score the student can get without any studying

6 0

2 years ago