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2 years ago

What is the value of a?

Mathematics

2 answers:

noname [10]2 years ago

8 0

I think the answer is a

Sliva [168]2 years ago

5 0

Answer:

answer is B

Step-by-step explanation:

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Find the vertical component given that R = 42 lb. and = 80. 41.36 7.29 59.45

valentina_108 [34]

Answer:

Step-by-step explanation:

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2 years ago

Solve for x and y in the system of equation 3x²+4y=17 2x²+5y=2 I'll mark brainliest

Novay_Z [31]

Answer:

$x=\pm \sqrt{11} \\y=-4.$

Step-by-step explanation:

$\left \{ {{3x^2+4y=17} \atop {2x^2+5y=2}} \right. \\\\Then\\\\\left \{ {{2 \times (3x^2+4y)=2 \times 17} \atop {3\times(2x^2+5y)=3\times2}} \right. \\\\\left \{ {{6x^2+8y=34 \quad (1)} \atop {6x^2+15y=6\quad (2)}} \right.\\\\(1)-(2) \Rightarrow -7y=28 \Rightarrow y =-4.\\Since \: \: 2x^2+5y=2 \Rightarrow 2x^2=2-5y\\\Rightarrow 2x^2=2+20=22\\\Rightarrow x^2=22:2=11\\\Rightarrow x=\pm \sqrt{11}.$

7 0

2 years ago

What is 0.7, 7/9, 7/8 in order from greatest to least

Sphinxa [80]

Simple...

change them all into fractions or decimals...

0.7---> 0.7

$\frac{7}{9}$ -->>0.77

$\frac{7}{8}$ --->>0.875

Ordering from greatest to least....

0.875-->>0.77-->>0.7

$\frac{7}{8}$ -->> $\frac{7}{9}$ -->>0.7

Thud, your answer.

5 0

2 years ago

Identify the relationship then solve for x

kupik [55]

These are alternate interior angles.

you would set them equal to eachother and solve for x.

10x=9x+7

subtract 9x from 10x.

x=7

the answers are bolded.

I hope this helps

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2 years ago

Order of numbers from greatest to least using negative 9.7 and -9

PtichkaEL [24]

Answer:

-9, 9.7

Step-by-step explanation:

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2 years ago