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3 years ago

PLEASE HELP IM BEING TIMED!

Mathematics

1 answer:

Dahasolnce [82]3 years ago

3 0

Answer:

C is incorrect. "Angle BOC is a right angle"

Step-by-step explanation:

Because it's an acute angle.

You might be interested in

Write down the answers to a,b,c,d

aniked [119]

Answer:

(A) 1

(B) -2

(D) -0.5

Step-by-step explanation:

We can treat each thermometer like a vertical number line and read the values on each.

A is right on 1.

B is right on -2.

C is in the middle of 3 and 4, so 3.5

D is in the middle of 0 and -1, so -0.5

Hope this helped!

3 0

3 years ago

Mara's family is driving to her grandmothers' house. The family travels 239.4 miles between the hours of 9:10 a.M. To 1:40 p.M.

anzhelika [568]

Answer:

53.2 mph

Step-by-step explanation:

Mara's family travels 239.4 miles between the hours of 9:10 a.m. to 1:40 p.m.

1:40 p.m. is 13:40.

Thus, they traveled for

13 hours 40 minutes - 9 hours 10 minutes = 4 hours 30 minutes

that is $4\frac{1}{2}=4.5$ hours.

Use formula:

$D=r\cdot t,$

where

D = distance

r = rate

t = time.

In your case,

D = 239.4 miles

t = 4.5 hours

Hence,

$239.4=4.5r\\ \\r=\dfrac{239.4}{4.5}=53.2\ mph$

5 0

3 years ago

Read 2 more answers

- - Use the Quadratic Formula to solve the equation x2 – 2x = -9.

mina [271]

No solution

Hope that helps

4 0

2 years ago

Re-write the quadratic function below in Standard Form y=5(x + 1)^2+9

omeli [17]

Answer:

y = 5x^2+10x +14

Step-by-step explanation:

y = 5(x+1)^2+9

= 5(x^2+2x+1)+9

= 5x^2+10x +14

4 0

3 years ago

Does anybody know how to solve for “C”?.

Jobisdone [24]

Answer:

c = (b+3a)/2

Step-by-step explanation:

Solve for c:

1/ac = 2/ab - 3/bc

Multiply both sides by abc:

abc/ac = 2abc/ab - 3abc/bc
b = 2c - 3a
b + 3a = 2c
2c = b + 3a
c = (b + 3a)/2

8 0

3 years ago