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3 years ago

Please help me with this this is my last grade for this semester

Mathematics

2 answers:

SIZIF [17.4K]3 years ago

7 0

Answer:

4^2+3 divided by 3 ,

2^2+21 divided by 3,

3^2 +6 divided by 3

aalyn [17]3 years ago

5 0

I hope this helps :)
1. 17
2. 11
3. 11

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Help! Signs of expression What is the sign of a . b?

Kazeer [188]

Answer:

6-positive

4-positive

2-positive

0-zero

-2-negative

-6-negative

8-positive

Step-by-step explanation:

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3 years ago

The value of a car decreases $500 for every 1,000 miles it is driven. The current value of the car is $23,000, and the car is dr

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18,000? im not 100% sure tho.

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4 years ago

Using elimination method, simultaneously solve, 6x+2y=20 and 0.5x-0.5y=1

Aleksandr [31]

Answer:

x=3, y=1. (3, 1)

Step-by-step explanation:

6x+2y=20

0.5x-0.5y=1

-----------------

6x+2y=20

1/2x-1/2y=1

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6x+2y=20

2(1/2x-1/2y)=2(1)

------------------------

6x+2y=20

x-y=2

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6x+2y=20

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6(y+2)+2y=20

6y+12+2y=20

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8y=8

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8 0

3 years ago

1 Draw the Venn diagram below. Write the numbers 8, 9, 10, 11, 12 and 13 in the correct places on your Venn diagram. multiples o

iragen [17]

Venn diagram is the representation of set in a graphical form

See attachment for the set of multiples of 2, 13, 3 and 6

Given

$Numbers = \{8,9,10,11,12,13\}$

Let

$A \to$ Multiples of 2

$B \to$ Multiples of 8

$C \to$ Multiples of 6

$D \to$ Multiples of 13

First, we split the numbers in set of the given multiples

$A: \{8, 10, 12\}$

$B = \{8\}$

$C =\{12\}$

$D = \{13\}$

Digit 9 does not belong to any of these set

Set B and set C are proper subsets of set A.

This means that sets B and C will be inside set A in the Venn diagram

So, we have:

$A = \{B,10,C\}$

Since 9 does not belong to any of the sets, it will not be inside any of sets A, B, C or D

See attachment for the required Venn diagram

Read more about Venn diagrams at:

brainly.com/question/1605100

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3 years ago

For a random sample of Harvard University psychology majors, the responses on political ideology had a mean of 3.18 and standard

Nutka1998 [239]

Answer:

From the test give in the question it is obvious that there is enough evidence to show that population mean varies for vegetarian and non-vegetarian

The P-value helps affirm the null hypothesis claims,The P-value attains values relatively as large as that which exists in the sample given,if the null hypothesis is right

Step-by-step explanation:

From the question we are told that

Sample mean $\=x_1=3.18$

Standard deviation $\delta_! =1.72$

Sample size $n_1 =51$

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Generally this is a two tailed test

therefore

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Alternative hypothesis $H_a : P_v_e_g \neq P_n_o_n_v_e_g$

From the test give in the question it is obvious that there is enough evidence to show that population mean varies for vegetarian and non-vegetarian

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3 years ago