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frosja888 [35]
3 years ago
13

Expand the following 5(2x-4)

Mathematics
1 answer:
Yuliya22 [10]3 years ago
8 0

Answer:

x= 2

Step-by-step explanation:

5*2= 10 then add the x at the end

5*4=20

then you divide both sides by 10

(10x/10)- (20/10)

x= 2

or if your rewriting it then:

(5*2x)- (5*4)=?

Hope this helped :D

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What is the area of Figure ABCD?<br><br>104<br>120<br>136<br>168​
EleoNora [17]

The answer is 120 because 13 times 8 equals 104, and all you have to do is find the base edge length of the triangle which is found by subtracting 13 from the 17 and getting 4 for the triangle base length, multiplying it by the height (8) which you get 32, dividing it by two to get 16, add 104 and there's your answer.

7 0
4 years ago
Solve for t.
vova2212 [387]

Answer:

  -5

Step-by-step explanation:

From your knowledge of multiplication tables, you know that ...

  -35 = -(7×5) = 7×(-5)

Then comparing to the given equation, you realize ...

  t = -5

_____

Or, you can recognize 7 as the coefficient of t and divide both sides of the equation by that:

  -35/7 = (7t)/7

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5 0
3 years ago
Read 2 more answers
In a one-way ANOVA, the __________ is calculated by taking the squared difference between each person and their specific groups
guapka [62]

Answer:

In a one-way ANOVA, the SS_{within} is calculated by taking the squared difference between each person and their specific groups mean, while the SS_{between} is calculated by taking the squared difference between each group and the grand mean.

Step-by-step explanation:

The one-way analysis of variance (ANOVA) is used "to determine whether there are any statistically significant differences between the means of two or more independent groups".

The sum of squares is the sum of the square of variation, where variation is defined as the spread between each individual value and the mean.

If we assume that we have p groups and each gtoup have a size n_j then we have different sources of variation, the formulas related to the sum of squares are:

SS_{total}=\sum_{j=1}^{p} \sum_{i=1}^{n_j} (x_{ij}-\bar x)^2

A measure of total variation.

SS_{between}=\sum_{j=1}^{p} n_j (\bar x_{j}-\bar x)^2

A measure of variation between each group and the grand mean.

SS_{within}=\sum_{j=1}^{p} \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2

A measure of variation between each person and their specific groups mean.

8 0
3 years ago
In △QRS, QR ‖ TU. Given that TQ=6, ST=10, and UR=15, find SU.
tresset_1 [31]

Answer:

SU=25

Step-by-step explanation:

We can set up a ratio as STU and SQR are similar because of the SAS similarity theorem.

TQ:SQ

SQ=ST+TQ=10+6=16

6:16=3:8

Therefore the ratio of STU:SQR is 3:8

We can use this to find SU

UR:SR=3:8

15:SR=3:8

Cross multiply

3SR=120

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SU=25

8 0
3 years ago
The perimeter of the triangle is known to be 18x + 5. Determine the expression that represents
Mila [183]

Answer:  18 x + 5 = 450

Step-by-step explanation:

got my answer by using my maththematics calculator and i got my answer with 450

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3 years ago
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