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4 years ago

3x+7y=2 Algebra 1A need helpp, due tomorroww:(

Mathematics

2 answers:

Digiron [165]4 years ago

8 0

Add -7y to both sides, then divide both sides by 3, you would get
x=(-7/3)
y=2/3

elena-s [515]4 years ago

5 0

OK. Here we go. Since Migo isn't sure what the question is,
I have to take my best guess.

I'll tell you two questions that I'm sure it's one of, and I'll answer
both of the questions that I made up myself.

Ordinarily I wouldn't bother with this one, but I was blinded by the
radiance of the bountiful 5 points that await me at the end.

Question #1: Solve the equation for 'x' .

Answer: You said 3x + 7y = 2

Subtract 7y from each side: 3x = -7y + 2

Divide each side by 3 :    x = - 7/3 y + 2/3

==========================================

Question #2: Solve the equation for 'y' .

Answer:    You said    3x + 7y = 2

Subtract 3x from each side:    7y = -3x + 2

Divide each side by 7 :    y = -3/7 x + 2/7

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PIT_PIT [208]

Answer:

There are 4 triangles. For the exterior and remote interior, I’m naming the angles with three letters. If your teacher just wants one, it would be the middle one. (I assume they’ll want all three, since the letters just name points, not angles.)

1) A) Name of triangle: ABO

B) Exterior AngleS: EAO, BOC and AOD

C) Remote Interior Angles: For EAO, it’s ABO and AOB. For BOC, it’s BAO and ABO. For AOD, it’s BAO and ABO

2) A) Name of triangle: ABC

B) Exterior Angles:EAC

C) Remote Interior Angles: ABO and BCO

3) A) Name of triangle: DOC

B) Exterior Angles: ODH, DOA, COB, and OCG

C) Remote Interior Angles: For ODH, it’s DOC and COD. For DOA, it’s ODC and DCO. For COB, it’s ODC and DCO. For OCG, it has CDO and DOC

4) A) Name Of triangle: COB

B) Exterior Angles: AOB, DOC, and OBF

C) Remote Interior Angles: For AOB, it’s OBC and OCB. For DOC, it’s OBC and OCB. For OBF, it’s BOC and OCB

Step-by-step explanation:

1) A) Name of triangle: ABO

B) Exterior AngleS: EAO, BOC and AOD

C) Remote Interior Angles: For EAO, it’s ABO and AOB. For BOC, it’s BAO and ABO. For AOD, it’s BAO and ABO

2) A) Name of triangle: ABC

B) Exterior Angles:EAC

C) Remote Interior Angles: ABO and BCO

3) A) Name of triangle: DOC

B) Exterior Angles: ODH, DOA, COB, and OCG

C) Remote Interior Angles: For ODH, it’s DOC and COD. For DOA, it’s ODC and DCO. For COB, it’s ODC and DCO. For OCG, it has CDO and DOC

4) A) Name Of triangle: COB

B) Exterior Angles: AOB, DOC, and OBF

C) Remote Interior Angles: For AOB, it’s OBC and OCB. For DOC, it’s OBC and OCB. For OBF, it’s BOC and OCB

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3 years ago

If f(x) = 3x² tlo, what is f(-7)?

tia_tia [17]

Answer:

Step-by-step explanation:

Be careful how you handle this.

f(-7) = 3(-7)^2

f(-7) = 3* 49 Notice the minus sign disappears. That's because there are 2 of them.

f(-7) = 147

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3 years ago

Explain how you can find the sign of the product of two or more rational numbers

Solnce55 [7]

Comparing two rational numbers

Use fraction form:

Make the denominators the same and compare the numerators. The number with the smaller numerator is smaller. For example, to compare a/b and c/d, we rewrite

a/b=a*d/b*d

= ad/bd and c/d = c*b/d*b=bc/bd

Now just compare the numerators : "ad" and "bc"

Multiplying and Dividing Rational Numbers

Multiplying and dividing rational numbers in decimal form is the same as multiplying and dividing integers. The decimal place of the product is the same of all decimals of all multiplied numbers. For example, 3.12*2.4.

Solution => 3.12*2.4=7.488

When multiplying or dividing rational numbers in fractional form, you multiply the numerators (N*N) and then multiply the denominators (D*D).

When dividing rational numbers in fractional form, first take the reciprocal of the divisor, and then multiply the numerators and the denominators.

Example => 5/9 divided by 2/7 .

Solution => 5/9 * 7/2 = 35/18

Adding Rational numbers

Adding and Subtracting rational numbers in decimal form is the same as adding and subtracting integers.

Example => -3.54+2.79=-0.75

When adding or subtracting rational numbers in fractional form, first make the denominator equal, and then add or subtract the numerators.

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4 years ago

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soldier1979 [14.2K]

Answer:

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Step-by-step explanation:

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3 years ago

Which set of polar coordinates describes the same location as the rectangular coordinates (-3,3)

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To convert from rectangular coordinates (x,y) to polar coordinates (r, θ), the following equations should be used:

r = sqrt( x^2 + y^2)
θ = tan^-1 (y/x)

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3 years ago

Read 2 more answers