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Akimi4 [234]
3 years ago
8

-10(4-10x)+5(1-10x)

Mathematics
2 answers:
pochemuha3 years ago
8 0

Answer:

Multiply the first bracket by -10

Multiply the second bracket by +5

-40+100x+5-50x

100x-50x-40+5

50x-35

Answer is 50x-35

Ugo [173]3 years ago
3 0

The answer is 50x-35.hope this helps.if it does please mark brainliest

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umka2103 [35]
136% increase I think
5 0
3 years ago
Please help me now please
ahrayia [7]

Answer:

A = 110 degrees.

Step-by-step explanation:

< A and < B are same side angles so their values add up to 180 degrees, so:

5x + 20 + 9x - 92 = 180

14x - 72 = 180

14x = 252

x = 18.

So m  A = 5(18) + 20

= 110 DEGREES.

3 0
3 years ago
The scale on a model of a frog is 2 cm = 25 mm. Find the actual length
otez555 [7]

Answer:

137.5

Step-by-step explanation:

2=25

4=50

6=75

8=100

10=125

11=125+12.5 = 137.5

8 0
3 years ago
Calculate the slope of the line going through A(-4,3) and B(0,6) PLEASE ANSWER
Alex

Answer:

6-3/0-(-4)

=3/4

Step-by-step explanation:

Given two points of a line to find the slope, we use the formula.y2-y1/x2-x1 hence the answer above. Our xs are x2=0 x=-4 y2=6 y1=3

7 0
3 years ago
The equation of circle having a diameter with endpoints (-2, 1) and (6, 7) is
densk [106]

Answer:

(x-2)^{2}+(y-4)^{2}=25

Step-by-step explanation:

step 1

Find the diameter of the circle

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

A(-2,1)\\B(6,7)  

substitute the values

d=\sqrt{(7-1)^{2}+(6+2)^{2}}

d=\sqrt{(6)^{2}+(8)^{2}}

d=\sqrt{100}

d=10\ units

The radius is half the diameter

so

r=10/2=5\ units

step 2

Find the center of the circle

the center of the circle is the midpoint between the endpoints of the diameter

so

The center is

(\frac{-2+6}{2},\frac{1+7}{2})

(2,4)

step 3

Find the equation of the circle

The equation of the circle is

(x-h)^{2}+(y-k)^{2}=r^{2}

substitute the values

(x-2)^{2}+(y-4)^{2}=5^{2}

(x-2)^{2}+(y-4)^{2}=25

8 0
3 years ago
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