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Nady [450]
2 years ago
11

What is the value of the expression (-5)-3? what is the value of x

Mathematics
1 answer:
devlian [24]2 years ago
4 0

Answer:

-8

Step-by-step explanation:

-5 goes to -6 goes to -7 goes to -8

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Joe bought a $40 video game for only $28, what was the percent discount on<br> the item?
Nata [24]

Answer:

30 % off

Step-by-step explanation:

12 dollars off of 40

40 (x) = 12

x = 12/40 = .3     or  30 %

6 0
1 year ago
A study was conducted on 64 female college athletes. The researcher collected data on a number of variables including percent bo
Leni [432]

Answer:

Hello please your question is in-complete attached is the complete question

degree of freedom = -62.90 ( e )

Step-by-step explanation:

The formula for calculating the F-statistic/test statistic is

test - statistic  = Coef ( LBW) / SE Coef ( LBW )

                       = -0.72399 / 0.01151

                       = - 62.90

the degree of freedom the F-statistic has = -62.90

F-statistic test is any statistical test in which the test statistic has an F-distribution under the null hypothesis. the value of the test can be gotten from running an ANOVA test or regression analysis on the statistical models

4 0
2 years ago
2x^2 -7= 74 please show all work
skad [1K]
2x^2-7=74\\&#10;2x^2=81\\&#10;x^2=\dfrac{81}{2}\\&#10;x=-\sqrt{\dfrac{81}{2}} \vee x=\sqrt{\dfrac{81}{2}}\\&#10;x=-\dfrac{9}{\sqrt2} \vee x=\dfrac{9}{\sqrt2}}\\&#10;x=-\dfrac{9\sqrt2}{2} \vee x=\dfrac{9\sqrt2}{2}}\\
8 0
3 years ago
Please Answer!! Will give brainly!!
shtirl [24]

Answer:

480 - 12.25d = 50

7 0
3 years ago
A patient is given a solution containing 0.625 g of calcium carbonate. If the calcium carbonate solution contains 1250 mg per 5
Dmitrij [34]

Answer: 2.5 mL

Step-by-step explanation:

Given : A patient is given a solution containing 0.625 g of calcium carbonate.

i.e. Patient required calcium carbonate = 625 mg  [∵ 1 g = 1000 mg]

Let x be the amount of solution ( in millimeters) given to the patients.

Ratio of amount of calcium carbonate (mg) to amount of solution (ml) =\dfrac{625}{x}

If the calcium carbonate solution contains 1250 mg per 5 mL,

Then, Ratio of amount of calcium carbonate to amount of solution =\dfrac{1250}{5}

By using proportion we have :-

\dfrac{625}{x}=\dfrac{1250}{5}\\\\\Rightarropw\ x=\dfrac{5\times625}{1250}=2.5

Hence, 2.5 mL solution were given to the patient.

3 0
3 years ago
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