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3 years ago

Can someone please help

Mathematics

1 answer:

Anastasy [175]3 years ago

6 0

Point slope form is

y - y1 = m(x - x1) where m = slope and (x1, y1) is a point on the line.

Plugging in the given values:-

y - 1.4 = 1.8(x - (-4.5))

y - 1.4 = 1.8(x + 4.5) So the correct choice is A.

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You invested 19,000 in two accounts paying 8% and 9% annual interest, respectively. If the total interest earned for the year wa

viva [34]

Answer:

The Qn aint correct

it would make more sense if the figures invested where different

8% of 19k + 9% of 19k =1620

the figures are the same so even if we shifted the first 19k to the second side of 9% still it could make no sense(remain the same)

8 0

2 years ago

What is the vertex of f(x) = |x + 8| – 3?

Arte-miy333 [17]

Answer:

(-8,-3)

Step-by-step explanation:

This question is similar to the vertex form of a quadratic equation, so you can think of this equation like f(x) = (x-h)+k. Using this equation, you can determine the vertex (h,k) of |x+8|-3, which is (-8,-3).

5 0

4 years ago

Find the value of b.

Nesterboy [21]

Answer: $230^{\circ$

Step-by-step explanation:

For convenience, I labeled some points as shown in the attached picture.

Also, I assume $\overline{AB}$ and $\overline{BC}$ are tangents to the circle.

$\overline{BO} \cong \overline{BO}$ (reflexive property)
$\overline{AB} \cong \overline{BC}$ (tangents drawn from a common external point are congruent)
$\angle BAO \cong \angle BCO$ (right angles are congruent)

Therefore, we know $\triangle ABO \cong \triangle CBO$ by HL.

Thus, by CPCTC,

$\angle AOB \cong \angle BOC \implies m\angle BOC=65^{\circ}\\\\\implies m\angle AOC=130^{\circ}$

This means the measure of minor arc AC is $130^{\circ}$ , and thus $b=360^{\circ}-130^{\circ}=\boxed{230^{\circ}}$

7 0

2 years ago

Harlene tosses two number cubes. If a sum of 8 or 12 comes up, she gets 9 points. If not, she loses 2 points. What is the expect

Amanda [17]

P(8 or 12) = 1/6
P(not 8 or 12 = 5/6
Let the expected points fro one roll be X.
$E(X)=9\times\frac{1}{6}-2\times\frac{5}{6}=-\frac{1}{6}\ points$
The answer is -(1/6) points.

5 0

3 years ago

Read 2 more answers

Which expression represents 5 more than one-third y

Jlenok [28]

<em>*One-third y*</em>

1/3y

D. 1/3y+5

Hope this helps!!

8 0

3 years ago

Read 2 more answers