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3 years ago

Determine which operation is needed in the blank so that the expression simplifies to 25.

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

7 0

Answer:

<u> ÷ - × ÷ -</u><u> + </u>

Step-by-step explanation:

40 ÷ 10 - 4 × (8 ÷ 2 - 3) + 5^2

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PLEASE HELP, WILL GIVE BRAINLIEST FOR RIGHT ANSWER!

Ket [755]

Find gradient by changing form of equation: y = 2/3x + 4. Gradient is 2/3.

Find y intercept of other line by substituting the coordinates: -8/3

Use information to write out equation of line: y= 2/3x - 8/3

Convert to standard form: -2x + 3y = 8.

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3 years ago

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Solve for a: (a+4)/3 - a/7 = (a+7)/5

Katarina [22]

Answer:

a= -7

Step-by-step explanation:

I hope this helps! :)

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3 years ago

4 ftA wire isneeded tosupport averticalpole 4 feettall. Thecable willbeanchoredto a stake3 feet fromthe baseof thepole. How3 ftA

Oxana [17]

SOLUTION

From the image in the question, we can see that it is a right triangle problem.

And we can use the Pythagoras theorem to solve for the length of cable wire needed.

Pythagoras theorem states that:

$\begin{gathered} \text{hypotenuse}^2=opposite^2+adjacent^2 \\ x^2=4^2+3^2 \end{gathered}$ $\begin{gathered} x^2=16+9 \\ x^2=25 \\ \text{Take the square roots of both sides:} \\ \sqrt[]{x^2}=\sqrt[]{25} \\ x=5ft \end{gathered}$

Final Answer:

A cable of length 5 feet is needed.

5 0

1 year ago

What is the greatest prime you must consider to test whether 1471 is prime?

a_sh-v [17]

Answer:

1471

Step-by-step explanation:

First we have to check if it is divisible with the first 15 prime numbers

1471÷2=735.5(not divisible)

1471÷3=490.33( not divisible)

1471÷5=294.2( not divisible)

1471÷7=210.14(not divisible)

1471÷11=133.73(not divisible)

1471÷13=113.15(not divisible )

1471÷17=86.53(not divisible )

1471÷19=77.42(not divisible )

1471÷23=63.96(not divisible )

1471÷29=50.72(not divisible )

1471÷31=47.45(not divisible )

1471÷37=39.76(not divisible )

1471÷41=35.88(not divisible )

1471÷43=34.20(not divisible )

1471÷47=31.39(not divisible )

1471÷53=27.75

1471÷61=24.11

1471÷67=21.85 ......

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3 years ago

Please answer this I have trouble with it

Strike441 [17]

For the 1 first problem you have to do additive inverse where the subtraction sign is and then combine all the z's and then combine the normal numbers and then put plus sign in between

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3 years ago

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