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3 years ago

Help plz I’ll mark brainlist

Mathematics

1 answer:

telo118 [61]3 years ago

7 0

If the scale were 1:63,360, for instance, then 1 inch on the map would represent 63,360 inches or 1 mile on the ground (63,360 inches divided by 12 inches = 5,280 feet or 1 mile).

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2+2 +2 +2 +2 +2 +2 +2 +2 +2=46<br> Why is this correct?

Usimov [2.4K]

Answer:

this is incorrect

Step-by-step explanation:

2+2 +2 +2 +2 +2 +2 +2 +2 +2=20

20 does not equal to 46

5 0

3 years ago

Read 2 more answers

Which equation has the solution x=7x=7?

kondaur [170]

Answer:

x = 1

Step-by-step explanation:

you can tell by 7x=7

divide 7 on both sides and get 1

7 0

3 years ago

In the accompanying diagram of circle O, chords AB and CD intersect at E and

RoseWind [281]

Answer:

m(arc AC) = 72°

m(arc BD) = 108°

m∠DEB = 90°

Step-by-step explanation:

Ratio of the measure of arc AC, arc BC, arc BD and arc AD = 4 : 2 : 6 : 8

Since, m(arc AC) + m(arc CB) + m(arc BD) + m(arc AD) = 360°

By the property of ratio,

Measure of arc AC = $\frac{4}{4+2+6+8}\times (360^0)$

= $\frac{4\times 360}{20}$

= 72°

Measure of arc BD = $\frac{6}{4+2+6+8}\times (360^0)$

= $\frac{6\times 360}{20}$

= 108°

Measure of ∠DEB = $\frac{1}{2}m(arcAC + arc BD)$

= $\frac{1}{2}(72+108)$

= 90°

6 0

3 years ago

Find the value of each measure.

IrinaK [193]

Answer:

Step-by-step explanation:

4x+7=9x-33

4x-9x=-33-7

-5x=-40

x=8

4×8+7=39

4 0

3 years ago

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Solve the following quadratic equation using the quadratic formula.<br><br> −2y^2+5=7y

Vikki [24]

Answer:

y=(7±√89)/-4

Step-by-step explanation:

y=(-b±√b^2 -4ac)/2a

Rewrite given equation in quadratic form so it is -2y-7y+5=0

Then, in formula, sub -2 for a, -7 for b, and 5 for c

y=-(-7)±√(-7)^2 -4(-2)(5)/2(-2)

When you multiply that out you get

7±√49-(-40)/-4

The next step is the answer given above

If you need the answer not in sq rt form, it is y=-4.1085 and y=0.0608

3 0

3 years ago