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Pepsi [2]
4 years ago
7

What is the correct answer because my answer is wrong Please show work need it for the test

Mathematics
1 answer:
Sholpan [36]4 years ago
5 0

Answer: C

Step-by-step explanation: Only one can equal fraction becaus

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The label on the car's antifreeze container claims to protect the car between −30°C and 130°C. To convert Celsius temperature to
Sveta_85 [38]

we know that

C = \frac{5}{9}(F-32)\\ \\F=\frac{9}{5}C+32

Step 1

<u>Find the inequality</u>

we know that

C = \frac{5}{9}(F-32) --------> equation 1

and

-30\° < C < 130\°

substitute the equation 1 in the inequality

-30\° < \frac{5}{9}(F-32) < 130\°

Step 2

<u>Convert -30\°C to F</u>

substitute in the formula

F=\frac{9}{5}*(-30)+32\\ \\F= -22\°

Step 3

<u>Convert 130\°C to F</u>

substitute in the formula

F=\frac{9}{5}*(130)+32\\ \\F= 266\°

therefore

-22\° < F < 266\°

the answer is the option

B. −30 < 5 over 9 (F − 32) < 130; −22 < F < 266

6 0
3 years ago
Read 2 more answers
Decrease $7500 by 7%<br>please help i need step by step explanation​
soldier1979 [14.2K]
(100% - 7%) × 7,500

= 93% × 7,500

= 93 ÷ 100 × 7,500

= 93 × 7,500 ÷ 100

= 697,500 ÷ 100

= 6975
hope this helped
6 0
3 years ago
Read 2 more answers
annie adds 2 spoonfuls of sugar to her tea and sophie adds 3 spoonfuls to her tea. If one spoonful is 4 grams of sugar and a a c
Tresset [83]

240%

Step-by-step explanation:

if there is 240 grams  then you just put a percent sing but are you asking What is the percentage of sugar in each cup? by spoons?

3 0
3 years ago
18<br> (cos+ i sin ) ¹8<br> 6
sergeinik [125]

Answer:

-1.

Step-by-step explanation:

1) according to the DeMoivre's theorem:

1*(cos\frac{ \pi}{6} +isin\frac{ \pi}{6})^{18}=1^{18}(cos(18*\frac{ \pi}{6})+isin(18*\frac{ \pi}{6}))=cos3\pi +isin3\pi =cos\pi +isin\pi ;

2) if cos(π)=-1 and sin(π)=0, then cosπ+i*sin(π)=-1.

8 0
2 years ago
In ΔABC shown below, point A is at (0, 0), point B is at (x2, 0), point C is at (x1, y1), point D is at x sub 1 over 2, y sub 1
LenaWriter [7]
There is two ways to attempt this problem. The first is that you could prove that angle CDE is congruent to angle DAB (of which I'm not totally sure is possible) or option two. Your second choice is to prove that Line segment DE is a flat line because line segment AB is also a flat line.
8 0
4 years ago
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