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Crazy boy [7]
2 years ago
9

Can anyone explain tonme how to do this please?

Mathematics
2 answers:
Mars2501 [29]2 years ago
4 0
C is right. She has partially completed the construction. Her next step is to use the arc markings to determine the radius to construct the circle.
SCORPION-xisa [38]2 years ago
3 0

I just took the test and got the answer wrong after selecting C.

The real answer is B - Use the compass to find the angle bisector for angle A.

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15x^2 + 41x + 28 <br><br>STEP BY STEP ANSWER PLSSS​
maria [59]

Answer:

(3x+4)(5x+7)

Step-by-step explanation:

15x^2 +41x+28

Factor the expression by grouping. First, the expression needs to be rewritten as 15x^2 +ax+bx+28. To find a and b, set up a system to be solved.

a+b=41

ab=15×28=420

Since ab is positive, a and b have the same sign. Since a+b is positive, a and b are both positive. List all such integer pairs that give product 420.

1,420

2,210

3,140

4,105

5,84

6,70

7,60

10,42

12,35

14,30

15,28

20,21

Calculate the sum for each pair.

1+420=421

2+210=212

3+140=143

4+105=109

5+84=89

6+70=76

7+60=67

10+42=52

12+35=47

14+30=44

15+28=43

20+21=41

The solution is the pair that gives sum 41.

a=20

b=21

Rewrite 15x^2 +41x+28 as (15x^2 +20x)+(21x+28).

(15x^2 +20x)+(21x+28)

Factor out 5x in the first and 7 in the second group.

5x(3x+4)+7(3x+4)

Factor out common term 3x+4 by using distributive property.

(3x+4)(5x+7)

7 0
3 years ago
Read 2 more answers
Write the equation in slope intercept form ( y=mx+b )
In-s [12.5K]

Answer:

y=-4x-3

Step-by-step explanation:

I hope this is correct and have a great day

7 0
2 years ago
Read 2 more answers
A spinner is divided into 8 equal sections: What is the theoretical probability of spinning and landing on 2, 7, or 5?
sp2606 [1]
3/8 because there are 3 numbers you want to land on and 8 total numbers.
6 0
3 years ago
Read 2 more answers
He base of a pentagonal prism has an area of 2.4 m2. The prism has a volume of 4.8 m3. What is its height? Use sketches, formula
77julia77 [94]

Answer:

The height of the prism is 2m

Step-by-step explanation:

Given;

The volume of pentagonal prism, V = 4.8 m^3

Area of the prism, A = 2.4 m^2

To determine the height of the prism, we consider the following;

Volume of any prism = Area of the prism x height of the prism

Height of the prism = volume of the prism / Area of the prism

Height of the prism = 4.8 / 2.4

Height of the prism = 2 m

Therefore, the height of the prism is 2m

3 0
3 years ago
Ill mark brainly if its correct. a,b,c, or d ~ quickly please ~
IgorLugansk [536]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
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