3 years ago

Can someone please help me with my math homework!!

Mathematics

1 answer:

larisa [96]3 years ago

3 0

1.)11x^2-3x
2.)8x+1-x^2
3.)-x^2-x+8
4.)-2y+10-x^2

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Find the volume of the cement block in the figure shown. Please help :)

Alexxandr [17]

9514 1404 393

Answer:

1240 in³

Step-by-step explanation:

The overall dimensions of the block are ...

10 in by 11 in by 17 in

The volume of that space is ...

V = LWH = (10 in)(11 in)(17 in) = 1870 in³

The volume of each of the three identical holes is similarly found:

V = (10 in)(3 in)(7 in) = 210 in³

Then the volume of the block is the overall volume less the volume of the three holes:

= 1870 in³ - 3(210 in³) = 1240 in³

6 0

3 years ago

If the probability of surviving a head on car accident at 55 mph is 0.097, then what is the probability of not surviving

BabaBlast [244]

The probability of not surviving a head-on car accident is: 0.903

Step-by-step explanation:

The probabilities of occurrence and non-occurrence of an event add up to one.

If p is the probability that an even will happen and q is the probability that it will not happen

Then

$p+q=1$

Here,

Probability of surviving = p = 0.097

Probability of not surviving = q = ?

$0.097 + q = 1\\q = 1 - 0.097\\q = 0.903$

The probability of not surviving a head-on car accident is: 0.903

Keywords: Probability, Inverse

Learn more about probability at:

#LearnwithBrainly

5 0

3 years ago

A.) 10 B.) 25 C.) 20 D.) 15

Sergio [31]

2x+4=10
2x=6
x=3
2(3)+4= 10
(plus, on parallelograms like that, parallel sides are equal to each other)

7 0

3 years ago

Which expression is not a polynomial? x³ x² - 2x x³ +1 12x

zaharov [31]

Answer:

12x

Step-by-step explanation:

It has no exponent so it is not a polynomial

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2 years ago

Last year the dept of the river was 4.2 feet deep. THIS YEAR UT DROPPED 11% find the depth of the f the river this year

Romashka [77]

Answer:

new depth =

4.2/100 X 89 = 3.738 feet

4 0

3 years ago