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Vadim26 [7]
3 years ago
12

I don't like math it makes me sad

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
8 0
It would be 250 in because you see 10x20 is 200 and and 10x10 is 100. But since part of the figure is a triangle you have to dive it by 2 and 100/2=50. 200+50=250
Hope that helps!
Irina18 [472]3 years ago
7 0

Answer:

300 in^{2}

Step-by-step explanation:

First, calculate the area of the rectangle. The height and width are 10 and 20, so the area is 200 in^{2}.

For the triangle, we know the base length is 10 inches. But for the height, you add the 10 inches that happens to be part of the rectangle and another 10 inches, which is shown to the left of the top of the triangle, making the height 20 inches. Following the formula for the area of a triangle, \frac{bh}{2}, you would get 100 in^{2}.

To get the total area of the whole figure, add 200 and 100, which will give you 300 in^{2}

also math makes me sad sometimes too so that's very relatable

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B) A white shirt costs $. 2.50, and a blue shirt costs $. 1.50
djyliett [7]
<h3><u>Answer</u> :</h3>

Cost of white shirt = 2.50 $

Cost of blue shirt = 1.50 $

We have asked to find percentage difference.

<u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u>

:\implies\sf\:\dfrac{cost_{blue}-cost_{white}}{cost_{blue}+cost_{white}}\times 100

:\implies\sf\:\dfrac{2.50-1.50}{2.50+1.50}\times 100

:\implies\sf\:\dfrac{1}{4}\times 100

:\implies\:\boxed{\bf{\gray{25\:\%}}}

4 0
3 years ago
Evaluate f(x)=-2×+5 for f(-5)​
Sliva [168]
  • Answer:

<em>f(-5) = 15 (A)</em>

  • Step-by-step explanation:

<em>f(x) = - 2x + 5</em>

<em>replace x = - 5</em>

<em>f(-5) = -2(-5) + 5 </em>

<em>(-)(-) = + </em>

<em>f(-5) = 10 + 5 </em>

<em>f(-5) = 15 (A)</em>

4 0
4 years ago
Read 2 more answers
From the mid-1960s to the early 1990s, there was a slow but steady decline in SAT scores. For example, take the Verbal SAT. The
daser333 [38]

Answer:

a) 7.68%

b) 3.38%

Step-by-step explanation:

(a) Estimate the percentage of students scoring over 700 in 1967.

The probability that a student scored over 700 in 1967 equals the area under the Normal curve with mean 543 and standard deviation 110 to the right of 700.

In<em> Excel </em> this value is found with the formula

=1-NORMDIST(700,543,110,1)

and in <em>OpenOffice Calc </em>

=1-NORMDIST(700;543;110;1)

<em> (NORMDIST(700;543;110;1) gives the area to the left of 700, so 1-NORMDIST(700;543;110;1) gives the area to the right of 700) </em>

and equals 0.07675

So, the percentage of students scoring over 700 in 1967 was 7.68%

(b) Estimate the percentage of students scoring over 700 in 1994.

The probability that a student scored over 700 in 1994 equals the area under the Normal curve with mean 499 and standard deviation 110 to the right of 700.

In <em>Excel</em>  this value is found with the formula

=1-NORMDIST(700,499,110,1)

and in <em>OpenOffice Calc </em>

=1-NORMDIST(700;499;110;1)

and equals 0.03383

So, the percentage of students scoring over 700 in 1994 was 3.38%

5 0
4 years ago
T 3.7.4 Quiz: Working With the Di
koban [17]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
(07.02 LC)<br> What is the greatest common factor of x^8 and x^5?
nydimaria [60]

Answer:x

Step-by-step explanation:

8 0
3 years ago
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