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frez [133]
3 years ago
13

Pls answer this i will give brainlyist

Mathematics
2 answers:
belka [17]3 years ago
6 0

Answer:

1. Distribute 3 to get 6x + 12 = 30

2. Subtract 12 from both sides to get 6x = 18

3. Divide by 6 on both sides

4. Simplify to find x =3.

BaLLatris [955]3 years ago
4 0

Answer: I put them in order from the numbers on the picture

3.

1.

4.

2.

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Write a quadratic relation in the form y = ax2 + bx + c with roots 4 and - 3 and
earnstyle [38]

Answer:

2x²-2x-24

Step-by-step explanation:

Something has roots of 4 and -3 we can write

(x-4)(x+3)

We then attach a constant, a that will ensure that it passes through the correct point

a(x-4)(x+3)

now plug in the numbers and solve for a

a(3-4)(3+3)= -12

a(-1)(6)= -12

-6a= -12

a=2

So we have

2(x-4)(x+3)

and now it's just a matter of mulitplying/simplifying things

(x-4)(x+3)= x²-x-12

2(x²-x-12)= 2x²-2x-24

6 0
3 years ago
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Lipids provide much of the dietary energy in the bodies of infants and young children. There is a growing interest in the qualit
garri49 [273]

Answer:

A.

This assumption is that the distribution of polyunsaturated fat % of each if these four regimes must be with equal variances as well as uniform.

B.

The null hypothesis

H0: μ1 = μ2 = μ3 = μ4

The alternate hypothesis:

H1: at least 2 means are unequal

C.

First we calculate the grand mean

= 1/54[15(42.9)+17(43.1)+8(43.7)+14(43.9)]

= (643.5 +732.7 + 349.6 + 614.6)/54

= 2340.4/54

= 43.341

Sum of squared treatment

= [15(42.9-43.341)²+17(43.1-43.341)²+8(43.7-43.341)²+14(43.9-43.341)²]

= 9.3104

Mean square of treatment

= SST/I-1

= 9.3104/4-1

= 9.3104/3

= 3.1035

Error sum of squared

= (15-1)*(1.3)² + (17-1)*(1.5)² + (8-1)*(1.2)² + (14-1)*(1.2)²

= 88.46

Error mean square

MSE = 88.46/54-4

= 1.7692

Test statistic

= 3.1035/1.7692

= 1.75

4 0
3 years ago
Find the area of a circle with a radius of 2
Dmitrij [34]

Answer:

12.56

Step-by-step explanation:

The equation for the area of a circle is πr² (pi x r²). The first step is squaring r, the radius, which is 2. 2²=4. 4 x 3.14= 12.56

5 0
3 years ago
A rectangle has side lengths of 6 cm and 9 cm. What would the side lengths of the image be after dilation of 2.25? Explain your
11Alexandr11 [23.1K]

Answer:

The side length will be 12 and 12

Step-by-step explanation:

6x9=54 then divide it by 2.25 = 24 and divide 24 by 2 = 12 and 12

6 0
3 years ago
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Enter the slope-intercept equation of the line that has slope 12 and y-intercept<br> (0,3).
Nadya [2.5K]

Answer:

y=12x+3

Step-by-step explanation:

The slope-intercept form is y=mx+b. In the equation for slope-intercept form m=slope and b=y-intercept. You have the slope and y-intercept so all you have to do is put them in the right places. Since the slope is 12 your put the 12 where the m is and get y=12x+b. Then since you know the y-intercept is (0,3)=3 then you just need to put the 3 where the b is to get y=12x+3.

Hope this helps!!!

4 0
3 years ago
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