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3 years ago

How do I solve this and put it in interval notation?

Mathematics

1 answer:

goblinko [34]3 years ago

8 0

You cannot take the square root of a negative number so the radicals must be greater than or equal to-1.
9-10x≥0
-10x≥-9
x≤9/10

{x|x≤-10}

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Can someone plz help? Only have a hour...I'll make crown the best and triple the points!!!

kykrilka [37]

Answer:

x= 3.57

Step-by-step explanation:

32 ( x + 2.5) = 114.24

32* x + 32* 2.5= 114.24

32x + 80= 114.24

-80 -80

32x= 114.24

/ 32 /32

x= 3.57

for the part that says convince me, we can use the eqution

/= divide

8 0

3 years ago

How to estimate 55 percent of 64?

serious [3.7K]

Answer: 35.2

Step-by-step explanation: To estimate 55 percent of 64, you could round the 55 to 50 percent, and just find half of 64, which is 32. After this, because you only have 5 percent left over, you can take the number you got from 50% of 64 and move the decimal over one place to make it 3.2. Just add that number to 32 and you’ll get your answer.

8 0

3 years ago

Divide the sum of (-5), (-10) and (-9) by the product of 2 and (-3).

kaheart [24]

Answer:

$\large \boxed{4}$

Step-by-step explanation:

$\sf The \ sum \ of \ -5, \ -10, \ and \ -9 \ is \ divided \\ by \ the \ product \ or \ multiplication \ of \ 2 \ and -3.$

$\displaystyle \frac{-5+-10+-9}{2 \times -3}$

$\displaystyle \frac{-24}{-6}$

$=4$

6 0

3 years ago

Read 2 more answers

Isaac and Paul shared some baseball cards in the ratio 2:5. If Paul gave 30 cards to Isaac, they would have the same number of c

avanturin [10]

Answer:

20-

Step-by-step explanation:

3 parts=30 cards thus 2 parts: 20

5 0

2 years ago

While baking, Evan discovered a recipe that required 1/2 cups of walnuts for very 2 1/4 cups of flour. How many cups of walnuts

Furkat [3]

9/4 cups of flour is equal to 2 1/4 2/4 cups of flour is equal to 1/2 SO 16/4 cup flour is equal to 4 Which is 7/4 cups more than 2 1/4 7/4 cups is 1 3/4 cups (1/2 a cups less than 2 1/4) Which means he needs 1 3/4 cups of walnuts.
<span>Simplfied- 4 cups is 1/2 a cups short of double, since the flour is done is quarters, take the 1/4 cup away from the walnuts. </span>
<span>(times 1/2 by 1/2 you get 1/4 subtract it)</span>

4 0

3 years ago