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madreJ [45]
3 years ago
9

Please help x+(-)28=0

Mathematics
1 answer:
Lynna [10]3 years ago
6 0

Answer:

x=28

Step-by-step explanation:

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Construction This section of a concrete skateboard ramp has the shape of a triangular prism. Find the volume
irina [24]

Answer:

volume = 73.3ft³

value = $194.4

Step-by-step explanation:

volume of prism = (½bh)l

=(½×4×4)×9.2

=73.6ft³

value of concrete

1ft³ : $4.00

73 .6ft³ : X

X : (73.6ft³ × $4.00) ÷ 1ft³

X : $294.4

7 0
3 years ago
(2a + 3)^2<br><br> – (2a – 3)^2<br><br>.​
Afina-wow [57]

Answer:

24a

Step-by-step explanation:

4 0
3 years ago
William has 3 jars of marbles to share equally with his brother the first jar holds 12 marbles the second jar holds 21 marbles t
meriva

Answer:

Each boy will get <u>25</u> marbles.

Step-by-step explanation:

Given:

William has 3 jars of marbles to share equally with his brother the first jar holds 12 marbles the second jar holds 21 marbles the last jar holds 17 marbles.

Now, to write an expression using parentheses to find number of marbles each boy get.

Let the number of marbles each boy get be x.

Total number of boys = 2.

Number of marbles first jar holds = 12.

                          Second jar holds = 21.

                        And third jar holds = 17.

As given, William shares marbles equally with his brother.

Now, we write the expression to find the number of marbles each boy get:

x=\frac{(12+21+17)}{2}

x=\frac{12}{2} +\frac{21}{2} +\frac{17}{2}

x=6+10.5+8.5

x=25.

Therefore, each boy will get 25 marbles.

4 0
3 years ago
What is the probability that something with a 2.18% chance of occurring happens 3 times out of 194 events
k0ka [10]

Answer:

0.18431525 = 18.4%

Step-by-step explanation:

General Formula :

total trials Cn⋅p(success)^n⋅p(fail)^total−n

1198144* (.0218)^3 * (1-.0218)^191

4 0
3 years ago
which is a correct first step in solving the inequality –4(2x – 1) &gt; 5 – 3x? distribute –4 to get –8x 4 &gt; 5 – 3x. distribu
dolphi86 [110]
Distribute -4 in this way:

-4(2x) - 4(-1) > 5 - 3x, to get

- 8x + 4 > 5 - 3x
8 0
3 years ago
Read 2 more answers
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