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Novosadov [1.4K]
3 years ago
11

What values of x make the equation x2 + 9x – 22 = 0 true? Check all that apply.

Mathematics
2 answers:
aksik [14]3 years ago
8 0

Answer:

b

Step-by-step explanation:

b

Alisiya [41]3 years ago
5 0

Answer:

a.) -11

d.) 2

Step-by-step explanation:

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23800 is 34% of annual income. what is the income?
BARSIC [14]

Hey there!

If you ever see the word "is" in a story problem, it means that there is an equal sign there. Let's apply that to this.

23800 =(is) 0.34i (income)

Now, we can solve for i by dividing.

23800/0.34= 70,000

Therefore, the annual income is $70,000.

I hope this helps! Have a great day!

5 0
3 years ago
A doctor gives a patient a 6060​% chance of surviving bypass surgery after a heart attack. if the patient survives the​ surgery,
DENIUS [597]
Let BS be the event that the patient survives bypass surgery. Let H be the event that the heart damage will heal. Then P(BS) = 0.60, and also we have a conditional probability: GIVEN that the patient survives, the probability that the heart damage will heal is 0.5, that is P(H|BS) = 0.5 We want to know P(BS and H). Using the formula of the conditional probability: P(H and BS) = P(H|BS)·P(BS) = (0.6)(0.5) = 0.3 
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3 years ago
A yard dart is thrown from a height of 3 feet with an initial velocity of 25 feet per second at an elevation angle of 70°.
kakasveta [241]

Answer:

D

Step-by-step explanation:

Plugged it into a projectile motion calc, got 1.58. So 1.6 (rounded).

3 0
3 years ago
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If city A is 32% less than city b what is city A population​
leonid [27]

Answer:

there is definitely missing context in this question but if we are going off of  per say 100% then A is 68%

Step-by-step explanation:

3 0
3 years ago
The surface area of a solid is 10 square feet. The dimensions of a similar solid are
maxonik [38]

Answer:

90 ft²

Step-by-step explanation:

Given the sides of similar figures in the ratio a : b, then

ratio of areas = a² : b²

Here ratio of sides = 1 : 3 , thus

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That is the surface area of the new solid is 9 times the first

SA = 9 × 10 = 90 ft²

6 0
3 years ago
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