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Vikki [24]
2 years ago
6

Que

Mathematics
2 answers:
Mila [183]2 years ago
7 0

Answer:

2

Step-by-step explanation:

Because if you add 1  to 8 you get 9 then subtract 9 by 7 then and your answer is 2

earnstyle [38]2 years ago
3 0

Answer:

Definition of supplementary angles: Angles that lie on a straight line (180 degrees)

Since the angles' exact values are unknown, let them be x

Angle B = 14x

Angle C = x

Total value = 15x

15x = 180 degrees

x = 12 degrees

14x = 168 degrees

Ans: 168 degrees

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Arrange the steps to solve the equation square root x+3 - square root 2x-1=-2
stiv31 [10]

Answer:x=31.4919

Step-by-step explanation:

Step1:isolate a square root on the left hand side√x+3=√2x-1-2

Step2:eliminate the radicals on the left hand side

Raise both sides to the second power

√x+3)^2=(√2x-1-2)^2

After squaring

x+3=2x-1+4-4-4√2x-1

Step3:get the remaining radicals by itself

x+3=2x-1+4-4√2x-1

Isolate radical on the left hand side

4√2x-1=-x-3+2x-1+4

4√2x-1=x

Step4:eliminate the radicals on the left hand side

Raise both side to the second power

(4√2x-1)^2=x^2

After squaring

32x-16=x^2

Step 5:solve the quadratic equation

x^2-32x-16

This equation has two real roots

x1=32+√960/2=31.4919

x2=32-√960/2=0.5081

Step6:check that the first solution is correct

Put in 31.4919 for x

√31.4919+3=√2•31.4919-1-2

√34.492=5.873

x=31.4919

Step7:check that the second solution is correct

√x+3=√2x-1-2

Put in 0.5081 for x

√0.5081+3=√2•0.5081-1-2

√3.508=-1.873

1.873#-1.873

One solution was found

x=31.4919

6 0
3 years ago
Please help me.
Keith_Richards [23]

Answer:

$180

Step-by-step explanation:

Since the discount is 40 percent and is also $72, We will cross multiply. 72 x 100 = 40 x what?

7200/40 = 180

The mirror was originally $180.

8 0
2 years ago
Read 2 more answers
Which number is a perfect cube? <br> 21<br> 49<br> 343<br> 600
artcher [175]

Answer:

343

Step-by-step explanation:

7 cubed = 7 x 7 x 7 = 343

so, 343 is a perfect cube.

6 0
1 year ago
Li bought his dog Spot a huge bone. Spot chews 4 inches off the bone every day. What number describes the change in the length o
Anarel [89]

Answer:

4 x 3 = 12

12 is the answer. Have a great day

Step-by-step explanation: Brainliest please

4 0
2 years ago
F(x)=x-6 move it 3 left then 2 up
Elza [17]
In the image move the point 3 left and 2 up then you should have your answer

5 0
3 years ago
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