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3 years ago

Make a ten or hundred to add mentally 198+132

1 answer:

6 0

2000. Because if you add the 2 it will make 1200, 2+8 is 10 so you carry the 1, and 3+9 is 12 then you add the 1 you got from 10 and you have 13. then you add 1+1 and get 2 and add the 1 you got from 13 so there you have it.

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Find the value of the discriminant for <img src="https://tex.z-dn.net/?f=7x%5E%7B2%7D%20%2B5x%2B1%3D0" id="TexFormula1" title="7

kondor19780726 [428]

Answer:

No real roots

Step-by-step explanation:

Given

7x² + 5x + 1 = 0 ← in standard form

with a = 7, b = 5, c = 1

To determine the nature of the roots use the discriminant

Δ = b² - 4ac

• If b² - 4ac > 0 then roots are real and distinct

• If b² - 4ac = 0 then roots are real and equal

• If b² - 4ac < 0 then the roots are not real

Here

b² - 4ac = 5² - (4 × 7 × 1) = 25 - 28 = - 3

Thus the 2 roots are not real

7 0

3 years ago

5.4x 7 \4 simplify this wat do i do ?????

Artyom0805 [142]

Hey there!☺

$Answer:\boxed{9.45}$

$Explanation:$

$5.4\times\frac{7}{4}$

Multiply 5.4 by 7:

$5.4\times7=37.8$

Now divide 37.8 by 4:

$37.8/4=9.45$

$9.45\text{ is your answer.}$

Hope this helps!☺

7 0

3 years ago

Please show work and solve :)

andreyandreev [35.5K]

Answer:

c = 24

Step-by-step explanation:

1/3c - 7 = 1

add 7 to both sides

1/3c = 8

now multiply 3 to both sides

c = 24

7 0

2 years ago

Read 2 more answers

The formula for perimeter of a rectangle is P=2L+2W where L is the length and w is the width. A rectangle has a perimeter of 24

Black_prince [1.1K]

24=2(w+4)+2w=4w+8, subtract 8 from both sides 4w=16, w=4. L=w+4 so l is 8. The dimensions are 8 by 4.

8 0

3 years ago

Please someone help me solve this. in graphic method.

fiasKO [112]

Answer:

just graph it mate

Step-by-step explanation:

5 0

3 years ago