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svp [43]
3 years ago
5

H(x)=-4x - 7, when x = 3

Mathematics
2 answers:
Brrunno [24]3 years ago
3 0

Answer:

-19

Step-by-step explanation:

To solve this plug 3 in for x.

  1. H(x)= -4 (3) - 7
  2. H(x)= -12 - 7
  3. H(x)= -19
cricket20 [7]3 years ago
3 0
It’s going to be -19
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1/4 :10=x:4 find x<br><br> I need the answer now
Naily [24]

Answer:

x=1.6

Step-by-step explanation:

Multiply each number by 4 to make wholes and than just cross multiply.

3 0
2 years ago
Each side of a rectangular prism measures 2 inches, and the height is 10 inches. What is the volume?
Diano4ka-milaya [45]
V=lwh
evidently, l=w=2

so
h=10
l=2
w=2

v=2*2*10=40

answer is 40 in^3
6 0
3 years ago
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Nadusha1986 [10]
H3000 -you 67778 it’s equals to ninth five yes
5 0
3 years ago
15 points<br><br> Help please
nekit [7.7K]

Answer:6.75π

Step-by-step explanation:

Since the equation is πrh, it will be π(1.5)(3)

Which is 6.75π in terms of π.

5 0
3 years ago
Read 2 more answers
Some of the children at a school arrive by car.
scZoUnD [109]

Answer:

  • <u>74%</u>

Explanation:

You can build a two-way relative frequency table to represent the data:

These are the columns and rows:

               Car         No car      Total

Boys

Girl

Total

Fill the table

  • <em>30% of the children at the school are boys</em>

             Car         No car      Total

Boys                                       30%

Girl

Total

  • <em>60% of the boys at the school arrive by car</em>

That is 60% of 30% = 0.6 × 30% = 18%

             Car         No car      Total

Boys      18%                         30%

Girls

Total

By difference you can fill the cell of Boy and No car: 30% - 18% = 12%

             Car         No car      Total

Boy       18%           12%         30%

Girl

Total

Also, you know that the grand total is 100%

             Car         No car      Total

Boy       18%           12%         30%

Girl

Total                                     100%

By difference you fill the total of Girls: 100% - 30% = 70%

             Car         No car      Total

Boy       18%           12%         30%

Girl                                         70%

Total                                     100%

  • <em>80% of the girls at the school arrive by car</em>

That is 80% of  70% = 0.8 × 70% = 56%

             Car         No car      Total

Boy       18%           12%         30%

Girl       56%                         70%

Total                                     100%

Now you can finish filling in the whole table calculating the differences:

             Car         No car      Total

Boy       18%           12%         30%

Girl        56%         14%         70%

Total     74%          26%      100%

Having the table completed you can find any relevant probability.

The probability that a child chosen at random from the school arrives by car is the total of the column Car: 74%.

That is because that column represents the percent of boys and girls that that  arrive by car: 18% of the boys, 56% of the girls, and 74% of all the the children.

8 0
3 years ago
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