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natita [175]
3 years ago
12

I need help with this, please help!

Mathematics
1 answer:
andrezito [222]3 years ago
3 0
Find the area of the triangle faces (b*h/2) and multiply that by the depth.

a)
[(6*7)/2]*8
(42/2)*8
21*8
⭐️168cm^3⭐️
b) 396ft^3
c) 63m^3
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Pls help!!! only 20 minutes left pls help 100 point math question
Oksi-84 [34.3K]

Step-by-step explanation:

To find a ratio, you have to divide a next terms with before terms.

A1 = 35/2

A2 = 7

ratio = A2 ÷ A1

ratio = 7 ÷ 35/2

ratio = 7 × 2/35

ratio = 14/35 = 0,4

Ratio = 0,4

3 0
3 years ago
A 1 mile hiking path has signs placed every 240 ft there are signs at the beginning of the path and the end how many signs are t
dlinn [17]

Answer: 22 signs

Step-by-step explanation:

First find out how many feet are in a mile.

A mile = 5,280 feet

There are signs every 240 ft so the number of signs are:

= 5,280/240

= 22 signs

<em>There is a sign at the beginning and one at the end both of which are already account for in the 22.</em>

5 0
3 years ago
A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 250 treated subjects experienced headaches (based
lozanna [386]

Answer:

a) The test is left-tailed.

Step-by-step explanation:

a) Hypothesis testing is tagged two-tailled if the test checks for a claim in both directions (greater than and less than).

It is one tailed if it checks for a claim in only one direction (either greater than or less than). It is left-tailed of it is testing the claim in a less than direction and right-tailed if it is testing the claim in a greater than direction.

This question is to check results from a test of the claim that less than 8% of treated subjects experienced headaches. It is evidently left tailed.

Hope this Helps!!!

3 0
3 years ago
Round 299 to the nearest hundred. Enter your answer in the box below.
Troyanec [42]

Answer:

300

Step-by-step explanation:

hundreds  tens  ones

2                   9      9

We look at the tens

It is 5 or higher so we round up the hundreds place

2 becomes 3

300

7 0
3 years ago
Read 2 more answers
Find a​ least-squares solution of A by​ (a) constructing the normal equations for and​ (b) solving for . A ​, a. Construct the n
Nata [24]
I dont know math ok 34 oh come on
5 0
3 years ago
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