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2 years ago

What is the conjugate? a - square root of a - 1

Mathematics

2 answers:

alexdok [17]2 years ago

7 0

Answer:

-1

Step-by-step explanation:

earnstyle [38]2 years ago

5 0

Answer:

The conjugate would just be a + square root of a-1

Step-by-step explanation:

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Grace and her brother Sid want to raise money to go to band camp. Their parents have agreed to help them earn up to $400 by payi

lukranit [14]

Answer:

25m + 10b = 400

Step-by-step explanation:

Total amount that can be earned = $ 400

Amount earned on mowing a lawn = $ 25

Amount earned per hour on babysitting = $10

Amount earned for mowing one lawn is $ 25, so amount earned for mowing m lawns will be $ 25m

Amount earned for one hour of babysitting is $ 10, so amount earned for babysitting for b hours will be $ 10b

Using the values from above, we can set up the equation as:

400 = 25m + 10b

25m + 10b = 400

This equation represents the number of lawns they can mow, m, and hours they can babysit, b, to earn $400.

Hope this helps have a good day

3 0

2 years ago

Please help i will mark brainliest for anyone who can help me 15 points on the line

gregori [183]

Answer:

A: a^3

B: c^1 or just c

Step-by-step explanation:

Subtract the exponents

6 0

3 years ago

Write a word phase for the algebraic expression 2t - 9

Hitman42 [59]

The product of 2 and a number t minus 9

6 0

3 years ago

Determine the value of y, if x is 6.<br> y = |x|-1<br> Answer:

Karolina [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

Which of the following are solutions to the equation below?

scoundrel [369]

Answer:

The correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Step-by-step explanation:

Given the expression

$x^2+10x+25=8$

Subtract 25 from both sides

$x^2+10x+25-25=8-25$

Simplify

$x^2+10x=-17$

Add 25 or 5² to both sides

$x^2+10x+5^2=8$

$x^2+10x+5^2=\left(x+5\right)^2$

so the expression becomes

$\left(x+5\right)^2=8$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x+5=\sqrt{8}$

Subtract 5 from both sides

$x+5-5=2\sqrt{2}-5$

$x=2\sqrt{2}-5$

solve

$x+5=-\sqrt{8}$

Subtract 5 from both sides

$x+5-5=-2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Therefore, the solution to the equation

$x=2\sqrt{2}-5,\:x=-2\sqrt{2}-5$

Hence, the correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

6 0

3 years ago