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frosja888 [35]
3 years ago
9

Solve for x Enter the solutions from least to greatest. -4x^2– 7 = -11

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
3 0

Answer:

x = 1, x = -1

Step-by-step explanation:

-4x² = -4

x² = 1

x = \sqrt{1}

x = ±1

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What is the sum of the 3rd and 5th square numbers????
kirill [66]

Answer:

40

Step-by-step explanation:

as 1st sq no is.4 and 2nd sq no. is 36

and their sum is =4+36

=40.....ans

5 0
3 years ago
How many meters are in 6 feet
taurus [48]

Answer:

6ft=1.8288m

Hope it helps!

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7 0
3 years ago
Use lengths |OQ| = 9.4 units and |OQ’| = 17.1 units to determine the scale factor r of dilation D (round to the nearest hundredt
NNADVOKAT [17]

Answer:

Scale factor = 1.82 units.

Step-by-step explanation:

We have been given that side length OQ of our prei-mage is 9.4 units and side length OQ' after dilation is 17.1 units. Since our pre-image (original image) is smaller than our new image, so our scale factor (r) will be greater than 1.

Since we know that in a dilation, the sides of the pre-image and the corresponding sides of the image are proportional, so we will use proportion to find a scale factor our given side lengths as:

\frac{OQ'}{OQ}=\frac{17.1}{9.4}

\frac{OQ'}{OQ}=1.8191

Upon multiplying both sides of our equation by OQ we will get,

\frac{OQ'}{OQ}\times OQ=1.8191\times OQ

OQ'=1.8191\times OQ

Upon rounding our answer to nearest hundredths place we will get,

OQ'\approx 1.82\times OQ

Since side length OQ' is 1.82 times side length OQ, therefore, our scale factor (r) will be 1.82 units.

8 0
3 years ago
Kai wrote the number 85 on the board is 85 prime or composite?
laila [671]
Composite because prime can only be multiplied by itself but 85 can be multiplied by 5
4 0
3 years ago
Read 2 more answers
1 how many pieces were left?<br> 2 what percent of the original pizza remained
mart [117]

Answer:

a) 9 slices

b) 56.25%

Step-by-step explanation:

a) 16 pieces - 4 = 12

   12 pieces - 3 = 9

b) 100% - 25 = 75%

   75% - 8.75 = 56.25%

brainliest would be nice

5 0
3 years ago
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